Updated images and readme.

Fix handling of (Windows) paths with spaces

core.scad

@@ -18,22 +18,10 @@
 //
 
 //
-// Include this file to use the miniumum library
+// Include this file to use the miniumum library plus screws, nuts and washers
 //
-include <global_defs.scad>
+include <utils/core/core.scad>
 //
-// Global functions and modules
+// Fasteners used by a lot of other vitamins
 //
-use <utils/core/global.scad>
-
-module use_stl(name) {               //! Import an STL to make a build platter
-    stl(name);
-
-    import(str("../stls/", name, ".stl"));
-}
-
-module use_dxf(name) {               //! Import a DXF to make a build panel
-    dxf(name);
-
-    import(str("../dxfs/", name, ".dxf"));
-}
+include <vitamins/screws.scad>

docs/usage.md

@@ -116,8 +116,8 @@ get shared if other files in the project include ```lib.scad``` as well, or if y
 
 One downside is that any change to the library will mean all the project files need regenerating.
 A more optimised approach for large projects is to include [NopSCADlib/core.scad](../core.scad) instead.
-That only has the a small set of utilities and the global settings in [global_defs.scad](../global_defs.scad). Any vitamins used need to be included explicitly.
-One can copy the include or use line from [NopSCADlib/lib.scad](../lib.scad).
+That only has the a small set of utilities and the global settings in [global_defs.scad](../global_defs.scad) plus screws, nuts and washers that are required by a lot of other vitamins.
+Any other vitamins used need to be included explicitly. One can copy the includes or use a line from [NopSCADlib/lib.scad](../lib.scad).
 
 ### Parametric parts.
 
@@ -233,3 +233,20 @@ Vitamins are only ever previewed, so they are optimised to draw quickly in F5 an
 In OpenCSG 3D difference and intersection are relatively slow and the negative volumes interfere with nearby objects when they are composed into assemblies. For this reason as much
 as possible is done by unioning primitives and extruded 2D shapes. Any 3D differences or intersections are wrapped in ```render()``` so that CGAL will compute a polyhedron
 that is cached and reused. This will be very slow the first time it renders but very fast afterwards.
+
+### Multiple configurations
+
+Some parametric designs might have several configurations, for example a 3D printer with different size options. If several configurations need to be supported at the
+ same time multiple sets of BOMS, STLS and DXFs need to be generated in separate diectories. NopSCADlib supports this by having multiple configuration files named
+```config_<target_name>.scad```. All the scripts take an optional first parameter that selects one of these config files by specifying ```target_name```.
+
+The target config file is selected by generating ```target.scad``` that includes ```config_<target_name>.scad```.
+The rest of the project includes ```target.scad``` to use the configuration.
+Additionally all the generated file directories (assemblies, bom, stls, dxfs, etc.) are placed in a sub-directory called ```<target_name>```.
+
+### Other libraries
+
+The build scripts need to be able to locate the source files where the modules to generate the STL files and assemblies reside. They will search all the scad files
+in the project plus any ```printed``` directories outside the project. This covers the printed parts in NopSCADlib but also allows other libraries of printed parts.
+
+Other libraries of vitamins and utilities can be used provided they follow the same convensions of NopSCADlib. The build scripts don't need to search those.

examples/MainsBreakOutBox/readme.md

@@ -30,7 +30,7 @@ Earth leakage can be measured Canadian CSA style by disconnected the neutral lin
 <a name="Parts_list"></a>
 ## Parts list
 | <span style="writing-mode: vertical-rl; text-orientation: mixed;">Base</span> | <span style="writing-mode: vertical-rl; text-orientation: mixed;">Feet</span> | <span style="writing-mode: vertical-rl; text-orientation: mixed;">Mains&nbsp;In</span> | <span style="writing-mode: vertical-rl; text-orientation: mixed;">Main</span> | <span style="writing-mode: vertical-rl; text-orientation: mixed;">TOTALS</span> |  |
-|--:|--:|--:|--:|--:|:--|
+|---:|---:|---:|---:|---:|:---|
 |  |  |  |  | | **Vitamins** |
 | &nbsp;&nbsp;.&nbsp; | &nbsp;&nbsp;.&nbsp; | &nbsp;&nbsp;.&nbsp; | &nbsp;&nbsp;2&nbsp; |  &nbsp;&nbsp;2&nbsp; | &nbsp;&nbsp; 4mm shielded jack socket blue |
 | &nbsp;&nbsp;.&nbsp; | &nbsp;&nbsp;.&nbsp; | &nbsp;&nbsp;.&nbsp; | &nbsp;&nbsp;1&nbsp; |  &nbsp;&nbsp;1&nbsp; | &nbsp;&nbsp; 4mm shielded jack socket brown |
@@ -61,14 +61,14 @@ Earth leakage can be measured Canadian CSA style by disconnected the neutral lin
 ## Base Assembly
 ### Vitamins
 |Qty|Description|
-|--:|:----------|
+|---:|:----------|
 |2| Heatfit insert M3|
 
 
 ### 3D Printed parts
 
 | 1 x socket_box.stl |
-|--|
+|---|
 | ![socket_box.stl](stls/socket_box.png) 
 
 
@@ -88,7 +88,7 @@ Earth leakage can be measured Canadian CSA style by disconnected the neutral lin
 ## Feet Assembly
 ### Vitamins
 |Qty|Description|
-|--:|:----------|
+|---:|:----------|
 |4| Nut M3 x 2.4mm nyloc|
 |4| Screw M3 dome x 10mm|
 |8| Washer  M3 x 7mm x 0.5mm|
@@ -97,7 +97,7 @@ Earth leakage can be measured Canadian CSA style by disconnected the neutral lin
 ### 3D Printed parts
 
 | 4 x foot.stl |
-|--|
+|---|
 | ![foot.stl](stls/foot.png) 
 
 
@@ -105,7 +105,7 @@ Earth leakage can be measured Canadian CSA style by disconnected the neutral lin
 ### Sub-assemblies
 
 | 1 x base_assembly |
-|--|
+|---|
 | ![base_assembled](assemblies/base_assembled_tn.png) 
 
 
@@ -124,7 +124,7 @@ Earth leakage can be measured Canadian CSA style by disconnected the neutral lin
 ## Mains In Assembly
 ### Vitamins
 |Qty|Description|
-|--:|:----------|
+|---:|:----------|
 |3| Heatshrink sleeving ID 3.2mm x 15mm - not shown|
 |1| IEC inlet for ATX|
 |2| Nut M3 x 2.4mm nyloc|
@@ -138,7 +138,7 @@ Earth leakage can be measured Canadian CSA style by disconnected the neutral lin
 ### Sub-assemblies
 
 | 1 x feet_assembly |
-|--|
+|---|
 | ![feet_assembled](assemblies/feet_assembled_tn.png) 
 
 
@@ -163,7 +163,7 @@ Earth leakage can be measured Canadian CSA style by disconnected the neutral lin
 ## Main Assembly
 ### Vitamins
 |Qty|Description|
-|--:|:----------|
+|---:|:----------|
 |2| 4mm shielded jack socket blue|
 |1| 4mm shielded jack socket brown|
 |2| 4mm shielded jack socket green|
@@ -178,7 +178,7 @@ Earth leakage can be measured Canadian CSA style by disconnected the neutral lin
 ### Sub-assemblies
 
 | 1 x mains_in_assembly |
-|--|
+|---|
 | ![mains_in_assembled](assemblies/mains_in_assembled_tn.png) 
 
 

examples/MainsBreakOutBox/scad/bob_main.scad

@@ -35,7 +35,14 @@ $extrusion_width = 0.5;
 $pp1_colour = "dimgrey";
 $pp2_colour = [0.9, 0.9, 0.9];
 
-include <NopSCADlib/lib.scad>
+include <NopSCADlib/core.scad>
+include <NopSCADlib/vitamins/iecs.scad>
+include <NopSCADlib/vitamins/mains_sockets.scad>
+include <NopSCADlib/vitamins/tubings.scad>
+
+use <NopSCADlib/vitamins/insert.scad>
+use <NopSCADlib/vitamins/wire.scad>
+use <NopSCADlib/vitamins/jack.scad>
 use <NopSCADlib/printed/foot.scad>
 
 echo(extrusion_width = extrusion_width, layer_height = layer_height);

gallery/readme.md

@@ -6,6 +6,13 @@ Arduino thermostat to control a beer fridge to use it as an environmental chambe
 ![](ArduinoThermostat.png)
 
 
+<a name="TOP"></a>
+## EnviroPlus
+Environmental monitor using Enviro+ sensor board and a Raspberry Pi Zero.
+
+![](EnviroPlus.png)
+
+
 <a name="TOP"></a>
 ## FilamentDryBox
 A small fan oven with a spool holder to keep the filament warm and dry.

global_defs.scad

@@ -34,7 +34,7 @@ layer_height    = is_undef($layer_height)    ? 0.25   : $layer_height;    // lay
 extrusion_width = is_undef($extrusion_width) ? 0.5    : $extrusion_width; // filament width when printing
 nozzle          = is_undef($nozzle)          ? 0.45   : $nozzle;          // 3D printer nozzle
 cnc_bit_r       = is_undef($cnc_bit_r)       ? 1.2    : $cnc_bit_r;       // miniumum tool radius when milling 2D objects
-pp1_colour      = is_undef($pp1_colour)      ? "lime" : $pp1_colour;      // printed part colour 1
+pp1_colour      = is_undef($pp1_colour)      ? [0, 146/255, 0] : $pp1_colour; // printed part colour 1, RepRap logo colour
 pp2_colour      = is_undef($pp2_colour)      ? "red"  : $pp2_colour;      // printed part colour 2
 pp3_colour      = is_undef($pp3_colour)      ? "blue" : $pp3_colour;      // printed part colour 3
 pp4_colour      = is_undef($pp4_colour)      ? "darkorange" : $pp4_colour;// printed part colour 4
@@ -60,7 +60,8 @@ grey60                          = [0.6, 0.6, 0.6];
 grey70                          = [0.7, 0.7, 0.7];
 grey80                          = [0.8, 0.8, 0.8];
 grey90                          = [0.9, 0.9, 0.9];
-brass                           = [255/255, 215/255, 0/255];
+gold                            = [255/255, 215/255, 0/255];
+brass                           = [255/255, 220/255, 100/255];
 silver                          = [0.75, 0.75, 0.75];
 
 /*

lib.scad

@@ -22,49 +22,45 @@
 //
 include <core.scad>
 
-include <vitamins/fans.scad>
+include <vitamins/psus.scad>
+include <vitamins/pcbs.scad>
+
+include <vitamins/batteries.scad>
+include <vitamins/blowers.scad>
+include <vitamins/bulldogs.scad>
+include <vitamins/buttons.scad>
+include <vitamins/components.scad>
+include <vitamins/displays.scad>
+include <vitamins/extrusions.scad>
+include <vitamins/extrusion_brackets.scad>
+include <vitamins/geared_steppers.scad>
+include <vitamins/green_terminals.scad>
+include <vitamins/hot_ends.scad>
 include <vitamins/inserts.scad>
+include <vitamins/kp_pillow_blocks.scad>
+include <vitamins/ldrs.scad>
+include <vitamins/leadnuts.scad>
+include <vitamins/leds.scad>
+include <vitamins/light_strips.scad>
+include <vitamins/mains_sockets.scad>
+include <vitamins/modules.scad>
+include <vitamins/pillars.scad>
+include <vitamins/pin_headers.scad>
+include <vitamins/pulleys.scad>
 include <vitamins/ring_terminals.scad>
 include <vitamins/rails.scad>
-include <vitamins/belts.scad>
-include <vitamins/pulleys.scad>
-include <vitamins/sheets.scad>
-include <vitamins/stepper_motors.scad>
-include <vitamins/components.scad>
-include <vitamins/hot_ends.scad>
-include <vitamins/tubings.scad>
-include <vitamins/zipties.scad>
-include <vitamins/linear_bearings.scad>
 include <vitamins/rod.scad>
-include <vitamins/leadnuts.scad>
-include <vitamins/bulldogs.scad>
-include <vitamins/pillars.scad>
-include <vitamins/psus.scad>
-include <vitamins/iecs.scad>
-include <vitamins/rockers.scad>
+include <vitamins/scs_bearing_blocks.scad>
+include <vitamins/sheets.scad>
+include <vitamins/sk_brackets.scad>
+include <vitamins/spools.scad>
 include <vitamins/ssrs.scad>
-include <vitamins/d_connectors.scad>
-include <vitamins/buttons.scad>
-include <vitamins/pcbs.scad>
-include <vitamins/modules.scad>
-include <vitamins/displays.scad>
-include <vitamins/blowers.scad>
-include <vitamins/leds.scad>
+include <vitamins/stepper_motors.scad>
 include <vitamins/toggles.scad>
 include <vitamins/transformers.scad>
+include <vitamins/tubings.scad>
 include <vitamins/variacs.scad>
-include <vitamins/springs.scad>
-include <vitamins/batteries.scad>
-include <vitamins/microswitches.scad>
-include <vitamins/ball_bearings.scad>
-include <vitamins/light_strips.scad>
-include <vitamins/spools.scad>
-include <vitamins/mains_sockets.scad>
-include <vitamins/ldrs.scad>
-include <vitamins/geared_steppers.scad>
-include <vitamins/extrusions.scad>
-include <vitamins/sk_brackets.scad>
-include <vitamins/scs_bearing_blocks.scad>
+include <vitamins/zipties.scad>
 
 use <vitamins/jack.scad>
 use <vitamins/meter.scad>

libtest.scad

@@ -33,16 +33,18 @@ use <tests/components.scad>
 use <tests/d_connectors.scad>
 use <tests/displays.scad>
 use <tests/extrusions.scad>
+use <tests/extrusion_brackets.scad>
 use <tests/fans.scad>
 use <tests/fuseholder.scad>
 use <tests/geared_steppers.scad>
 use <tests/hot_ends.scad>
-use <tests/iecs.scad>
+use <tests/IECs.scad>
 use <tests/inserts.scad>
 use <tests/jack.scad>
+use <tests/KP_pillow_blocks.scad>
 use <tests/leadnuts.scad>
-use <tests/leds.scad>
-use <tests/ldrs.scad>
+use <tests/LDRs.scad>
+use <tests/LEDs.scad>
 use <tests/light_strips.scad>
 use <tests/linear_bearings.scad>
 use <tests/meter.scad>
@@ -51,20 +53,22 @@ use <tests/modules.scad>
 use <tests/nuts.scad>
 use <tests/o_ring.scad>
 use <tests/opengrab.scad>
-use <tests/pcbs.scad>
+use <tests/PCBs.scad>
 use <tests/pillars.scad>
-use <tests/psus.scad>
+use <tests/PSUs.scad>
 use <tests/pulleys.scad>
 use <tests/rails.scad>
 use <tests/ring_terminals.scad>
 use <tests/rockers.scad>
 use <tests/rod.scad>
 use <tests/screws.scad>
+use <tests/SCS_bearing_blocks.scad>
 use <tests/sealing_strip.scad>
 use <tests/sheets.scad>
+use <tests/SK_brackets.scad>
 use <tests/spades.scad>
 use <tests/springs.scad>
-use <tests/ssrs.scad>
+use <tests/SSRs.scad>
 use <tests/stepper_motors.scad>
 use <tests/toggles.scad>
 use <tests/transformers.scad>
@@ -83,18 +87,25 @@ use <tests/door_hinge.scad>
 use <tests/door_latch.scad>
 use <tests/fan_guard.scad>
 use <tests/fixing_block.scad>
+use <tests/flat_hinge.scad>
 use <tests/foot.scad>
 use <tests/handle.scad>
+use <tests/PCB_mount.scad>
+use <tests/printed_box.scad>
 use <tests/ribbon_clamp.scad>
 use <tests/screw_knob.scad>
 use <tests/socket_box.scad>
 use <tests/strap_handle.scad>
-use <tests/ssr_shroud.scad>
-use <tests/psu_shroud.scad>
-use <tests/flat_hinge.scad>
-use <tests/pcb_mount.scad>
+use <tests/SSR_shroud.scad>
+use <tests/PSU_shroud.scad>
 
-x5 = 800;
+x0 = 0;
+x1 = x0 + 100;
+x2 = x1 + 90;
+x3 = x2 + 130;
+x4 = x3 + 200;
+x5 = 850;
+x6 = x5 + 150;
 
 cable_grommets_y = 0;
 
@@ -133,16 +144,20 @@ translate([x5 + 60, cable_grommets_y + 200])
 translate([x5, cable_grommets_y + 250])
     handle();
 
-translate([900, 600])
+translate([950, 600])
     box_test();
 
-translate([850, 1260])
+translate([890, 730])
+    printed_boxes();
+
+
+translate([850, 1300])
     bbox_test();
 
-x0 = 0;
+
 inserts_y = 0;
 nuts_y = inserts_y + 20;
-washers_y = nuts_y + 100;
+washers_y = nuts_y + 120;
 screws_y = washers_y + 120;
 o_rings_y = screws_y + 130;
 springs_y = o_rings_y + 20;
@@ -204,10 +219,6 @@ translate([x0, linear_bearings_y]) {
     rods();
 }
 
-translate([x0+150, linear_bearings_y+30]) {
-    extrusions();
-}
-
 translate([x0 + 10, hot_ends_y])
     hot_ends();
 
@@ -236,7 +247,6 @@ translate([x0, psus_y]) {
     psu_shrouds();
 }
 
-x1 = x0 + 100;
 zipties_y = 0;
 bulldogs_y = zipties_y + 40;
 
@@ -246,7 +256,6 @@ translate([x1, zipties_y])
 translate([x1, bulldogs_y])
     bulldogs();
 
-x2 = x1 + 90;
 leds_y = 0;
 carriers_y = leds_y + 40;
 spades_y = carriers_y + 40;
@@ -293,8 +302,6 @@ translate([x2, toggles_y])
 translate([x2, components_y])
     components();
 
-
-x3 = x2 + 150;
 veroboard_y = 0;
 d_connectors_y = veroboard_y + 110;
 iecs_y = d_connectors_y + 80;
@@ -303,6 +310,7 @@ ssrs_y = modules_y + 80;
 blowers_y = ssrs_y + 60;
 batteries_y = blowers_y + 100;
 steppers_y = batteries_y + 70;
+extrusions_y = steppers_y + 100;
 
 translate([x3, veroboard_y])
     veroboard_test();
@@ -343,16 +351,22 @@ translate([x3, batteries_y])
 translate([x2, steppers_y])  // interloper
     stepper_motors();
 
+translate([x2, extrusions_y]) {
+    extrusions();
+}
+
 translate([x3, transformers_y])
     transformers();
 
 
-x4 = x3 + 220;
 belts_y = 0;
 rails_y = belts_y + 200;
-cable_strips_y = rails_y + 300;
+extrusion_brackets_y = rails_y + 250;
+sk_brackets_y = extrusion_brackets_y + 80;
+kp_pillow_blocks_y = sk_brackets_y + 50;
+scs_bearing_blocks_y = kp_pillow_blocks_y + 60;
 
-translate([x4 + 112, belts_y + 58]) {
+translate([x4 + 150, belts_y + 58]) {
     belt_test();
 
     translate([0, 60])
@@ -362,9 +376,21 @@ translate([x4 + 112, belts_y + 58]) {
 translate([x4, rails_y + 130])
     rails();
 
-translate([x4, cable_strips_y])
+translate([900, fans_y + 50])
     cable_strips();
 
-x6 = x5 + 150;
+translate([x4, kp_pillow_blocks_y])
+    kp_pillow_blocks();
+
+translate([x4, sk_brackets_y])
+    sk_brackets();
+
+translate([x4, extrusion_brackets_y])
+    extrusion_brackets();
+
+translate([x4, scs_bearing_blocks_y])
+    scs_bearing_blocks();
+
+
 translate([x6, 125])
     light_strips();

printed/box.scad

@@ -31,12 +31,11 @@
 //!
 //! Normally the side sheets are the same type but they can be overridden individually as long as the substitute has the same thickness.
 //
-include <../core.scad>
+include <../utils/core/core.scad>
 use <../vitamins/sheet.scad>
 use <../vitamins/screw.scad>
 use <../vitamins/washer.scad>
-
-include <../vitamins/inserts.scad>
+use <../vitamins/insert.scad>
 use <../utils/quadrant.scad>
 
 bezel_clearance = 0.2;

printed/cable_grommets.scad

@@ -21,7 +21,7 @@
 //! Printed cable grommets for passing cables through panels avoiding sharp edges and in the case
 //! of conductive panels, an extra layer of insulation.
 //
-include <../core.scad>
+include <../utils/core/core.scad>
 use <../vitamins/cable_strip.scad>
 
 base = 1.25;

printed/carriers.scad

@@ -22,7 +22,7 @@
 //
 $extrusion_width = 0.5;
 
-include <../core.scad>
+include <../utils/core/core.scad>
 
 module ESP12F_carrier_stl() { //! Generate the STL for an ESP12 carrier
     stl("ESP12F_carrier");

printed/corner_block.scad

@@ -31,8 +31,7 @@
 //! Star washers can be omitted by setting ```star_washers``` to false.
 //
 include <../core.scad>
-include <../vitamins/screws.scad>
-include <../vitamins/inserts.scad>
+use <../vitamins/insert.scad>
 use <../utils/rounded_cylinder.scad>
 use <../utils/maths.scad>
 

printed/door_hinge.scad

@@ -24,7 +24,6 @@
 //! Rubber door [sealing strip](#sealing_strip) is used to make it airtight and a [door_latch](#door_latch) holds it closed.
 //
 include <../core.scad>
-include <../vitamins/screws.scad>
 
 width = 18;
 thickness = 4;
@@ -142,7 +141,7 @@ module door_hinge_assembly(top, door_thickness = 6) { //! The moving assembly th
 
     translate([0, pin_y - (thickness + door_thickness / 2), dir * width / 2]) {
         rotate([90, 0, 180])
-            color("red") door_hinge(door_thickness);
+            color(pp2_colour) door_hinge(door_thickness);
 
         rotate([90, 0, 0])
             door_hinge_hole_positions()
@@ -166,7 +165,7 @@ module door_hinge_static_assembly(top, sheet_thickness = 3) { //! The stationary
 
     translate([pin_x, 0, -dir * (stat_width / 2 + washer_thickness(screw_washer(pin_screw)))])
         rotate([90, 0, 0]) {
-            color("lime") door_hinge_stat_stl();
+            color(pp1_colour) door_hinge_stat_stl();
 
             door_hinge_stat_hole_positions() {
                 screw_and_washer(stat_screw, stat_screw_length);

printed/door_latch.scad

@@ -22,7 +22,6 @@
 //
 include <../core.scad>
 use <../utils/hanging_hole.scad>
-include <../vitamins/screws.scad>
 
 length = 35;
 width = 12;
@@ -66,7 +65,7 @@ module door_latch_assembly(sheet_thickness = 3) { //! The assembly for a specifi
 
     translate([0, -height - washer_thickness(washer)])
         rotate([-90, 0, 0]) {
-            color("lime") render() door_latch_stl();
+            color(pp1_colour) render() door_latch_stl();
 
             translate_z(nut_trap_depth)
                 vflip()

printed/fixing_block.scad

@@ -31,8 +31,7 @@
 //! Star washers can be omitted by setting ```star_washers``` to false.
 //
 include <../core.scad>
-include <../vitamins/screws.scad>
-include <../vitamins/inserts.scad>
+use <../vitamins/insert.scad>
 use <../utils/maths.scad>
 
 def_screw = M3_cap_screw;

printed/flat_hinge.scad

@@ -30,7 +30,6 @@
 //! This allows the hinges and one set of screws to belong to one assembly and the other set of screws to another assembly.
 //
 include <../core.scad>
-include <../vitamins/screws.scad>
 
 function hinge_width(type)       = type[1]; //! Width
 function hinge_depth(type)       = type[2]; //! Depth of each leaf

printed/foot.scad

@@ -22,8 +22,7 @@
 //! inserts don't grip well in rubber.
 //
 include <../core.scad>
-include <../vitamins/screws.scad>
-include <../vitamins/inserts.scad>
+use <../vitamins/insert.scad>
 
 foot        = [25, 12, 3, 2, M4_cap_screw, 10];
 insert_foot = [20, 10, 0, 2, M3_cap_screw, 10];

printed/handle.scad

@@ -21,8 +21,7 @@
 //! Printed handle that can be printed without needing support material due to its truncated teardrop profile.
 //
 include <../core.scad>
-include <../vitamins/screws.scad>
-include <../vitamins/inserts.scad>
+use <../vitamins/insert.scad>
 
 dia = 18;
 length = 90; // inside length

printed/pcb_mount.scad

@@ -22,7 +22,6 @@
 //! The stl must be given a parameterless wrapper in the project that uses it.
 //
 include <../core.scad>
-include <../vitamins/screws.scad>
 use <../vitamins/pcb.scad>
 
 clearance = 0.2;

printed/printed_box.scad

@@ -0,0 +1,229 @@
+//
+// NopSCADlib Copyright Chris Palmer 2020
+// nop.head@gmail.com
+// hydraraptor.blogspot.com
+//
+// This file is part of NopSCADlib.
+//
+// NopSCADlib is free software: you can redistribute it and/or modify it under the terms of the
+// GNU General Public License as published by the Free Software Foundation, either version 3 of
+// the License, or (at your option) any later version.
+//
+// NopSCADlib is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+// without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+// See the GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along with NopSCADlib.
+// If not, see <https://www.gnu.org/licenses/>.
+//
+
+//
+//! A fully parametric 3D printed case that can be customised with cutouts and additions specified by children.
+//!
+//! The walls can be made wavy, which possibly reduces warping when printing and looks nice, however if holes need to be made
+//! in the sides you can't print a wavy bridge. Any holes need to be surrounded by a 45&deg; chamfer to make the bridges straight.
+//! See the mounting points for the feet in the first example.
+//!
+//! It can also have printed feet on the base with the screws doubling up to hold the base on.
+//
+include <../core.scad>
+use <../vitamins/insert.scad>
+use <foot.scad>
+
+function pbox_name(type)       = type[0]; //! Name to allow more than one box in a project
+function pbox_wall(type)       = type[1]; //! Wall thickness
+function pbox_top(type)        = type[2]; //! Top thickness
+function pbox_base(type)       = type[3]; //! Base thickness, can be zero for no base
+function pbox_foot(type)       = type[4]; //! Printed foot, can be false to suppress feet
+function pbox_base_screw(type) = type[5]; //! Screw type if no feet
+function pbox_radius(type)     = type[6]; //! Internal corner radius
+function pbox_ridges(type)     = type[7]; //! Ridge wavelength and amplitude
+function pbox_width(type)      = type[8]; //! Internal width
+function pbox_depth(type)      = type[9]; //! Internal depth
+function pbox_height(type)     = type[10]; //! Internal height
+
+base_outset = 1;    // How much the base overlaps the inner dimensions
+base_overlap = 2;   // The width of ledge the base sits on
+height_overlap = 1; // How far the edges sit below the base
+
+function pbox_inclusion(type) = pbox_base(type) ? base_overlap - base_outset : 0; //! How far the ledge for the base extends inwards
+
+function pbox_total_height(type) =  //! Total height including base overlap
+    let(base = pbox_base(type),
+        foot = pbox_foot(type),
+        washer = pbox_washer(type),
+        screw = pbox_screw(type))
+        pbox_height(type) + pbox_top(type) + base + (base ? height_overlap : 0) + (foot || !base ? 0 : washer_thickness(washer) + screw_head_height(screw));
+
+function pbox_screw(type) =         //! Foot screw if got feet else base_screw
+    let(foot = pbox_foot(type)) foot ? foot_screw(foot) : pbox_base_screw(type);
+
+function pbox_insert(type) = screw_insert(pbox_screw(type)); //! The insert for the base screws
+function pbox_washer(type) = screw_washer(pbox_screw(type)); //! The washer for the base screws
+
+function pbox_screw_length(type, panel_thickness = 0) =  //! Length of the base screw
+    let(foot = pbox_foot(type))
+        screw_shorter_than(pbox_base(type) + washer_thickness(pbox_washer(type))
+                            + insert_length(pbox_insert(type))
+                            + (foot ? foot_thickness(foot) : panel_thickness));
+
+function pbox_mid_offset(type) = pbox_ridges(type).y + pbox_wall(type) / 2; // Offset to wall midpoint
+
+function pbox_screw_inset(type) = //! How far the base screws are inset
+    let(foot = pbox_foot(type),
+        r = foot ? foot_diameter(foot) / 2 : washer_radius(pbox_washer(type)),
+        R =  pbox_radius(type)
+    ) max(r, R - (R - r) / sqrt(2));
+
+module pbox_screw_positions(type) {
+    foot = pbox_foot(type);
+    inset = pbox_screw_inset(type);
+    for(x = [-1, 1], y = [-1, 1])
+         translate([x * (pbox_width(type) / 2 - inset), y * (pbox_depth(type) / 2 - inset)])
+            rotate((y > 0 ? -x * 45 : -x * 135) + 90)
+                children();
+}
+
+module pbox_mid_shape(type) {
+    ridges = pbox_ridges(type);
+    offset = ridges.y + pbox_wall(type) / 2;
+    rad = pbox_radius(type) + offset;
+    w = pbox_width(type) + 2 * offset;
+    d = pbox_depth(type) + 2 * offset;
+
+    module waves(length) {
+        l = length - 2 * rad;
+
+        waves = round(l / ridges.x);
+        points = 16;
+        translate([-l / 2, ridges.y / 2])
+            polygon(concat([[0, -10]], [for(i = [0 : waves * points], a = 360 * i / points) [i * l / waves / points, -cos(a) * ridges.y / 2] ], [[l, -10]]));
+    }
+
+    difference() {
+        rounded_square([w, d], rad, center = true);
+
+        if(ridges.y)
+            for(side = [-1, 1]) {
+                translate([0,  side * d / 2])
+                    rotate(90 + side * 90)
+                        waves(w);
+
+                translate([side * w / 2, 0])
+                    rotate(side * 90)
+                        waves(d);
+            }
+     }
+}
+
+module pbox_inner_shape(type) {
+    rad = pbox_radius(type);
+    w = pbox_width(type);
+    d = pbox_depth(type);
+
+    rounded_square([w, d], rad, center = true);
+}
+
+module pbox_base(type) { //! Generate the STL for the base
+    stl(str(pbox_name(type),"_base"));
+    t = pbox_base(type);
+    difference() {
+        union() {
+            linear_extrude(height = t)
+                offset(base_outset - 0.2)
+                    pbox_inner_shape(type);
+
+            if($children > 0)
+                children(0);
+        }
+        pbox_screw_positions(type)
+            poly_cylinder(r = screw_clearance_radius(pbox_screw(type)), h = 2 * t + eps, center = true);
+
+        if($children > 1)
+            children(1);
+    }
+}
+
+module pbox(type) { //! Generate the STL for the main case
+    stl(pbox_name(type));
+
+    height = pbox_height(type);
+    total_height = pbox_total_height(type);
+    top_thickness = pbox_top(type);
+    wall = pbox_wall(type);
+    ledge_outset = pbox_ridges(type).y;
+    ledge_inset = base_outset - base_overlap;
+    ledge_h = pbox_base(type) ? (ledge_outset - ledge_inset) * 2 : 0;
+
+    difference() {
+        union() {
+            linear_extrude(height = total_height)
+                offset(wall / 2) pbox_mid_shape(type);
+
+            if($children > 2)
+                children(2);
+        }
+        difference() {
+            translate_z(top_thickness)
+                union() {
+                    linear_extrude(height = height + eps)
+                         offset(-wall / 2) pbox_mid_shape(type);
+
+                     translate_z(height)                                     // Recess for the base
+                        linear_extrude(height = total_height - height)
+                            offset(base_outset)
+                                pbox_inner_shape(type);
+                }
+            // Ledge to support the lid
+            if(ledge_h)
+                translate_z(top_thickness + height - ledge_h)
+                    difference() {
+                        rounded_rectangle([pbox_width(type) + 2 * outset, pbox_depth(type) + 2 * outset, ledge_h], 1, center = false);
+
+                        hull() {
+                            linear_extrude(height = ledge_h + eps)
+                                offset(ledge_inset)
+                                    pbox_inner_shape(type);
+
+                            linear_extrude(height = eps)
+                                offset(ledge_outset)
+                                     pbox_inner_shape(type);
+                        }
+                        pbox_screw_positions(type)
+                            insert_hole(pbox_insert(type));
+                    }
+
+            // Corner lugs for inserts
+            outset = wall + pbox_ridges(type).y;
+            or = pbox_radius(type) + outset;
+            inset = pbox_screw_inset(type) + outset;
+            br = insert_boss_radius(pbox_insert(type), wall);
+            ext = sqrt(2) * inset - or * (sqrt(2) - 1) - br;
+            translate_z(height + top_thickness)
+                pbox_screw_positions(type)
+                    insert_lug(pbox_insert(type), wall, counter_bore = 0, extension = ext, corner_r = or);
+
+            if($children > 0)
+                children(0);
+        }
+        if($children > 1)
+            children(1);
+    }
+}
+
+module pbox_inserts(type) //! Place the inserts for the base screws
+    translate_z(pbox_height(type) + pbox_top(type))
+        pbox_screw_positions(type)
+            insert(pbox_insert(type));
+
+module pbox_base_screws(type, thickness = 0)           //! Place the screws and feet
+    translate_z(pbox_height(type) + pbox_top(type) + pbox_base(type))
+        pbox_screw_positions(type) {
+            foot = pbox_foot(type);
+            if(foot)
+                color(pp4_colour)
+                    foot(foot);
+
+            translate_z(foot ? foot_thickness(foot) : thickness)
+                screw_and_washer(pbox_screw(type), pbox_screw_length(type, thickness));
+        }

printed/psu_shroud.scad

@@ -22,8 +22,7 @@
 //! The stl and assembly must be given a name and parameterless wrappers for the stl and assembly added to the project.
 //
 include <../core.scad>
-include <../vitamins/screws.scad>
-include <../vitamins/inserts.scad>
+use <../vitamins/insert.scad>
 
 use <../vitamins/wire.scad>
 use <../vitamins/psu.scad>
@@ -144,7 +143,7 @@ module psu_shroud(type, cable_d, name, cables = 1) { //! Generate the STL file f
  }
 
 module psu_shroud_assembly(type, cable_d, name, cables = 1) //! The printed parts with inserts fitted
-assembly(str("psu_shroud_", name)) {
+assembly(str("PSU_shroud_", name)) {
 
     translate_z(psu_shroud_height(type))
         vflip()

printed/ribbon_clamp.scad

@@ -21,8 +21,7 @@
 //! Clamp for ribbon cable and polypropylene strip.
 //
 include <../core.scad>
-include <../vitamins/screws.scad>
-include <../vitamins/inserts.scad>
+use <../vitamins/insert.scad>
 use <../vitamins/cable_strip.scad>
 
 wall = 2;

printed/screw_knob.scad

@@ -21,7 +21,6 @@
 //! Knob with embedded hex head screw.
 //
 include <../core.scad>
-include <../vitamins/screws.scad>
 use <../utils/hanging_hole.scad>
 
 knob_wall = 2;

printed/socket_box.scad

@@ -22,9 +22,8 @@
 //
 include <../core.scad>
 include <../vitamins/mains_sockets.scad>
-include <../vitamins/screws.scad>
-include <../vitamins/inserts.scad>
 include <../vitamins/ring_terminals.scad>
+use <../vitamins/insert.scad>
 
 box_height = 19;
 base_thickness = 2;
@@ -93,7 +92,7 @@ assembly(str("socket_box_", type[0])) {
     screw = mains_socket_screw(type);
     insert = screw_insert(screw);
 
-    color("lime") render() socket_box(type);
+    color(pp1_colour) render() socket_box(type);
 
     mains_socket_hole_positions(type)
         translate_z(height)

printed/ssr_shroud.scad

@@ -19,11 +19,10 @@
 
 //
 //! A cover to go over the mains end of an SSR to make it safe to be touched.
-//! The stl and assembly must be given a name and parameterless wrappers for the stl and assembly added to the project.
+//! The STL and assembly must be given a name and parameterless wrappers for the stl and assembly added to the project.
 //
 include <../core.scad>
-include <../vitamins/screws.scad>
-include <../vitamins/inserts.scad>
+use <../vitamins/insert.scad>
 
 use <../vitamins/wire.scad>
 use <../vitamins/ssr.scad>
@@ -108,7 +107,7 @@ module ssr_shroud(type, cable_d, name) {    //! Generate the STL file for a spec
 }
 
 module ssr_shroud_assembly(type, cable_d, name) //! The printed parts with inserts fitted
-assembly(str("ssr_shroud_", name)) {
+assembly(str("SSR_shroud_", name)) {
 
     translate_z(ssr_shroud_height(type))
         vflip()

printed/strap_handle.scad

@@ -22,8 +22,7 @@
 //! be fully customised by passing a list of properties.
 //
 include <../core.scad>
-include <../vitamins/screws.scad>
-include <../vitamins/inserts.scad>
+use <../vitamins/insert.scad>
 
 strap = [18, 2, M3_pan_screw, 3, 25];
 function strap() = strap;

readme.md

@@ -17,37 +17,29 @@ See [usage](docs/usage.md) for requirements, installation instructions and a usa
 
 ## Table of Contents<a name="top"/>
 <table><tr>
-<th align="left"> Vitamins A-M </th><th align="left"> Vitamins N-Z </th><th align="left"> Printed </th><th align="left"> Utilities </th><th align="left"> Core Utilities </th></tr>
-<tr><td> <a href = "#Ball_bearings">Ball_bearings</a> </td><td> <a href = "#Nuts">Nuts</a> </td><td> <a href = "#Box">Box</a> </td><td> <a href = "#Annotation">Annotation</a> </td><td> <a href = "#Bom">Bom</a> </td></tr>
-<tr><td> <a href = "#Batteries">Batteries</a> </td><td> <a href = "#O_ring">O_ring</a> </td><td> <a href = "#Butt_box">Butt_box</a> </td><td> <a href = "#Bezier">Bezier</a> </td><td> <a href = "#Clip">Clip</a> </td></tr>
-<tr><td> <a href = "#Belts">Belts</a> </td><td> <a href = "#Opengrab">Opengrab</a> </td><td> <a href = "#Cable_grommets">Cable_grommets</a> </td><td> <a href = "#Dogbones">Dogbones</a> </td><td> <a href = "#Global">Global</a> </td></tr>
-<tr><td> <a href = "#Blowers">Blowers</a> </td><td> <a href = "#Pcbs">Pcbs</a> </td><td> <a href = "#Carriers">Carriers</a> </td><td> <a href = "#Fillet">Fillet</a> </td><td> <a href = "#Polyholes">Polyholes</a> </td></tr>
-<tr><td> <a href = "#Bulldogs">Bulldogs</a> </td><td> <a href = "#Pillars">Pillars</a> </td><td> <a href = "#Corner_block">Corner_block</a> </td><td> <a href = "#Hanging_hole">Hanging_hole</a> </td><td> <a href = "#Rounded_rectangle">Rounded_rectangle</a> </td></tr>
-<tr><td> <a href = "#Buttons">Buttons</a> </td><td> <a href = "#Pin_headers">Pin_headers</a> </td><td> <a href = "#Door_hinge">Door_hinge</a> </td><td> <a href = "#Layout">Layout</a> </td><td> <a href = "#Sphere">Sphere</a> </td></tr>
-<tr><td> <a href = "#Cable_strips">Cable_strips</a> </td><td> <a href = "#Psus">Psus</a> </td><td> <a href = "#Door_latch">Door_latch</a> </td><td> <a href = "#Maths">Maths</a> </td><td> <a href = "#Teardrops">Teardrops</a> </td></tr>
-<tr><td> <a href = "#Components">Components</a> </td><td> <a href = "#Pulleys">Pulleys</a> </td><td> <a href = "#Fan_guard">Fan_guard</a> </td><td> <a href = "#Offset">Offset</a> </td><td></td></tr>
-<tr><td> <a href = "#D_connectors">D_connectors</a> </td><td> <a href = "#Rails">Rails</a> </td><td> <a href = "#Fixing_block">Fixing_block</a> </td><td> <a href = "#Quadrant">Quadrant</a> </td><td></td></tr>
-<tr><td> <a href = "#Displays">Displays</a> </td><td> <a href = "#Ring_terminals">Ring_terminals</a> </td><td> <a href = "#Flat_hinge">Flat_hinge</a> </td><td> <a href = "#Round">Round</a> </td><td></td></tr>
-<tr><td> <a href = "#Extrusions">Extrusions</a> </td><td> <a href = "#Rockers">Rockers</a> </td><td> <a href = "#Foot">Foot</a> </td><td> <a href = "#Rounded_cylinder">Rounded_cylinder</a> </td><td></td></tr>
-<tr><td> <a href = "#Fans">Fans</a> </td><td> <a href = "#Rod">Rod</a> </td><td> <a href = "#Handle">Handle</a> </td><td> <a href = "#Rounded_polygon">Rounded_polygon</a> </td><td></td></tr>
-<tr><td> <a href = "#Fuseholder">Fuseholder</a> </td><td> <a href = "#Screws">Screws</a> </td><td> <a href = "#Pcb_mount">Pcb_mount</a> </td><td> <a href = "#Sector">Sector</a> </td><td></td></tr>
-<tr><td> <a href = "#Geared_steppers">Geared_steppers</a> </td><td> <a href = "#Scs_bearing_blocks">Scs_bearing_blocks</a> </td><td> <a href = "#Psu_shroud">Psu_shroud</a> </td><td> <a href = "#Sweep">Sweep</a> </td><td></td></tr>
-<tr><td> <a href = "#Green_terminals">Green_terminals</a> </td><td> <a href = "#Sealing_strip">Sealing_strip</a> </td><td> <a href = "#Ribbon_clamp">Ribbon_clamp</a> </td><td> <a href = "#Thread">Thread</a> </td><td></td></tr>
-<tr><td> <a href = "#Hot_ends">Hot_ends</a> </td><td> <a href = "#Sheets">Sheets</a> </td><td> <a href = "#Screw_knob">Screw_knob</a> </td><td> <a href = "#Tube">Tube</a> </td><td></td></tr>
-<tr><td> <a href = "#Hygrometer">Hygrometer</a> </td><td> <a href = "#Sk_brackets">Sk_brackets</a> </td><td> <a href = "#Socket_box">Socket_box</a> </td><td></td><td></td></tr>
-<tr><td> <a href = "#Iecs">Iecs</a> </td><td> <a href = "#Spades">Spades</a> </td><td> <a href = "#Ssr_shroud">Ssr_shroud</a> </td><td></td><td></td></tr>
-<tr><td> <a href = "#Inserts">Inserts</a> </td><td> <a href = "#Spools">Spools</a> </td><td> <a href = "#Strap_handle">Strap_handle</a> </td><td></td><td></td></tr>
-<tr><td> <a href = "#Jack">Jack</a> </td><td> <a href = "#Springs">Springs</a> </td><td></td><td></td><td></td></tr>
-<tr><td> <a href = "#Ldrs">Ldrs</a> </td><td> <a href = "#Ssrs">Ssrs</a> </td><td></td><td></td><td></td></tr>
-<tr><td> <a href = "#Leadnuts">Leadnuts</a> </td><td> <a href = "#Stepper_motors">Stepper_motors</a> </td><td></td><td></td><td></td></tr>
-<tr><td> <a href = "#Leds">Leds</a> </td><td> <a href = "#Toggles">Toggles</a> </td><td></td><td></td><td></td></tr>
-<tr><td> <a href = "#Light_strips">Light_strips</a> </td><td> <a href = "#Transformers">Transformers</a> </td><td></td><td></td><td></td></tr>
-<tr><td> <a href = "#Linear_bearings">Linear_bearings</a> </td><td> <a href = "#Tubings">Tubings</a> </td><td></td><td></td><td></td></tr>
-<tr><td> <a href = "#Mains_sockets">Mains_sockets</a> </td><td> <a href = "#Variacs">Variacs</a> </td><td></td><td></td><td></td></tr>
-<tr><td> <a href = "#Meter">Meter</a> </td><td> <a href = "#Veroboard">Veroboard</a> </td><td></td><td></td><td></td></tr>
-<tr><td> <a href = "#Microswitches">Microswitches</a> </td><td> <a href = "#Washers">Washers</a> </td><td></td><td></td><td></td></tr>
-<tr><td> <a href = "#Microview">Microview</a> </td><td> <a href = "#Wire">Wire</a> </td><td></td><td></td><td></td></tr>
-<tr><td> <a href = "#Modules">Modules</a> </td><td> <a href = "#Zipties">Zipties</a> </td><td></td><td></td><td></td></tr>
+<th align="left"> Vitamins A-J </th><th align="left"> Vitamins K-Q </th><th align="left"> Vitamins R-Z </th><th align="left"> Printed </th><th align="left"> Utilities </th><th align="left"> Core Utilities </th></tr>
+<tr><td> <a href = "#Ball_bearings">Ball_bearings</a> </td><td> <a href = "#KP_pillow_blocks">KP_pillow_blocks</a> </td><td> <a href = "#Rails">Rails</a> </td><td> <a href = "#Box">Box</a> </td><td> <a href = "#Annotation">Annotation</a> </td><td> <a href = "#BOM">BOM</a> </td></tr>
+<tr><td> <a href = "#Batteries">Batteries</a> </td><td> <a href = "#LDRs">LDRs</a> </td><td> <a href = "#Ring_terminals">Ring_terminals</a> </td><td> <a href = "#Butt_box">Butt_box</a> </td><td> <a href = "#Bezier">Bezier</a> </td><td> <a href = "#Clip">Clip</a> </td></tr>
+<tr><td> <a href = "#Belts">Belts</a> </td><td> <a href = "#LEDs">LEDs</a> </td><td> <a href = "#Rockers">Rockers</a> </td><td> <a href = "#Cable_grommets">Cable_grommets</a> </td><td> <a href = "#Dogbones">Dogbones</a> </td><td> <a href = "#Global">Global</a> </td></tr>
+<tr><td> <a href = "#Blowers">Blowers</a> </td><td> <a href = "#Leadnuts">Leadnuts</a> </td><td> <a href = "#Rod">Rod</a> </td><td> <a href = "#Carriers">Carriers</a> </td><td> <a href = "#Fillet">Fillet</a> </td><td> <a href = "#Polyholes">Polyholes</a> </td></tr>
+<tr><td> <a href = "#Bulldogs">Bulldogs</a> </td><td> <a href = "#Light_strips">Light_strips</a> </td><td> <a href = "#SCS_bearing_blocks">SCS_bearing_blocks</a> </td><td> <a href = "#Corner_block">Corner_block</a> </td><td> <a href = "#Hanging_hole">Hanging_hole</a> </td><td> <a href = "#Rounded_rectangle">Rounded_rectangle</a> </td></tr>
+<tr><td> <a href = "#Buttons">Buttons</a> </td><td> <a href = "#Linear_bearings">Linear_bearings</a> </td><td> <a href = "#SK_brackets">SK_brackets</a> </td><td> <a href = "#Door_hinge">Door_hinge</a> </td><td> <a href = "#Layout">Layout</a> </td><td> <a href = "#Sphere">Sphere</a> </td></tr>
+<tr><td> <a href = "#Cable_strips">Cable_strips</a> </td><td> <a href = "#Mains_sockets">Mains_sockets</a> </td><td> <a href = "#SSRs">SSRs</a> </td><td> <a href = "#Door_latch">Door_latch</a> </td><td> <a href = "#Maths">Maths</a> </td><td> <a href = "#Teardrops">Teardrops</a> </td></tr>
+<tr><td> <a href = "#Components">Components</a> </td><td> <a href = "#Meter">Meter</a> </td><td> <a href = "#Screws">Screws</a> </td><td> <a href = "#Fan_guard">Fan_guard</a> </td><td> <a href = "#Offset">Offset</a> </td><td></td></tr>
+<tr><td> <a href = "#D_connectors">D_connectors</a> </td><td> <a href = "#Microswitches">Microswitches</a> </td><td> <a href = "#Sealing_strip">Sealing_strip</a> </td><td> <a href = "#Fixing_block">Fixing_block</a> </td><td> <a href = "#Quadrant">Quadrant</a> </td><td></td></tr>
+<tr><td> <a href = "#Displays">Displays</a> </td><td> <a href = "#Microview">Microview</a> </td><td> <a href = "#Sheets">Sheets</a> </td><td> <a href = "#Flat_hinge">Flat_hinge</a> </td><td> <a href = "#Round">Round</a> </td><td></td></tr>
+<tr><td> <a href = "#Extrusion_brackets">Extrusion_brackets</a> </td><td> <a href = "#Modules">Modules</a> </td><td> <a href = "#Spades">Spades</a> </td><td> <a href = "#Foot">Foot</a> </td><td> <a href = "#Rounded_cylinder">Rounded_cylinder</a> </td><td></td></tr>
+<tr><td> <a href = "#Extrusions">Extrusions</a> </td><td> <a href = "#Nuts">Nuts</a> </td><td> <a href = "#Spools">Spools</a> </td><td> <a href = "#Handle">Handle</a> </td><td> <a href = "#Rounded_polygon">Rounded_polygon</a> </td><td></td></tr>
+<tr><td> <a href = "#Fans">Fans</a> </td><td> <a href = "#O_ring">O_ring</a> </td><td> <a href = "#Springs">Springs</a> </td><td> <a href = "#PCB_mount">PCB_mount</a> </td><td> <a href = "#Sector">Sector</a> </td><td></td></tr>
+<tr><td> <a href = "#Fuseholder">Fuseholder</a> </td><td> <a href = "#Opengrab">Opengrab</a> </td><td> <a href = "#Stepper_motors">Stepper_motors</a> </td><td> <a href = "#PSU_shroud">PSU_shroud</a> </td><td> <a href = "#Sweep">Sweep</a> </td><td></td></tr>
+<tr><td> <a href = "#Geared_steppers">Geared_steppers</a> </td><td> <a href = "#PCB">PCB</a> </td><td> <a href = "#Toggles">Toggles</a> </td><td> <a href = "#Printed_box">Printed_box</a> </td><td> <a href = "#Thread">Thread</a> </td><td></td></tr>
+<tr><td> <a href = "#Green_terminals">Green_terminals</a> </td><td> <a href = "#PCBs">PCBs</a> </td><td> <a href = "#Transformers">Transformers</a> </td><td> <a href = "#Ribbon_clamp">Ribbon_clamp</a> </td><td> <a href = "#Tube">Tube</a> </td><td></td></tr>
+<tr><td> <a href = "#Hot_ends">Hot_ends</a> </td><td> <a href = "#PSUs">PSUs</a> </td><td> <a href = "#Tubings">Tubings</a> </td><td> <a href = "#SSR_shroud">SSR_shroud</a> </td><td></td><td></td></tr>
+<tr><td> <a href = "#Hygrometer">Hygrometer</a> </td><td> <a href = "#Pillars">Pillars</a> </td><td> <a href = "#Variacs">Variacs</a> </td><td> <a href = "#Screw_knob">Screw_knob</a> </td><td></td><td></td></tr>
+<tr><td> <a href = "#IECs">IECs</a> </td><td> <a href = "#Pin_headers">Pin_headers</a> </td><td> <a href = "#Veroboard">Veroboard</a> </td><td> <a href = "#Socket_box">Socket_box</a> </td><td></td><td></td></tr>
+<tr><td> <a href = "#Inserts">Inserts</a> </td><td> <a href = "#Pulleys">Pulleys</a> </td><td> <a href = "#Washers">Washers</a> </td><td> <a href = "#Strap_handle">Strap_handle</a> </td><td></td><td></td></tr>
+<tr><td> <a href = "#Jack">Jack</a> </td><td></td><td> <a href = "#Wire">Wire</a> </td><td></td><td></td><td></td></tr>
+<tr><td></td><td></td><td> <a href = "#Zipties">Zipties</a> </td><td></td><td></td><td></td></tr>
 </table>
 
 ---
@@ -93,8 +85,10 @@ Also single bearing balls are modelled as just a silver sphere and a BOM entry.
 | Qty | Module call | BOM entry |
 | ---:|:--- |:---|
 |   1 | ```ball_bearing(BB608)``` |  Ball bearing 608-2RS 8mm x 22mm x 7mm |
+|   1 | ```ball_bearing(BB6200)``` |  Ball bearing 6200-2RS 10mm x 30mm x 9mm |
+|   1 | ```ball_bearing(BB6201)``` |  Ball bearing 6201-2RS 12mm x 32mm x 10mm |
 |   1 | ```ball_bearing(BB624)``` |  Ball bearing 624-2RS 4mm x 13mm x 5mm |
-|   2 | ``` bearing_ball(3)``` |  Steel ball 3mm |
+|   4 | ``` bearing_ball(3)``` |  Steel ball 3mm |
 
 
 <a href="#top">Top</a>
@@ -586,6 +580,54 @@ LCD dispays.
 |   1 | ```display(SSD1963_4p3)``` |  LCD display SSD1963 4.3" |
 
 
+<a href="#top">Top</a>
+
+---
+<a name="Extrusion_brackets"></a>
+## Extrusion_brackets
+Brackets for joining extrusions at a corner.
+
+
+[vitamins/extrusion_brackets.scad](vitamins/extrusion_brackets.scad) Object definitions.
+
+[vitamins/extrusion_bracket.scad](vitamins/extrusion_bracket.scad) Implementation.
+
+[tests/extrusion_brackets.scad](tests/extrusion_brackets.scad) Code for this example.
+
+### Properties
+| Function | Description |
+|:--- |:--- |
+| ```extrusion_corner_bracket_base_thickness(type)``` | Thickness of base of bracket |
+| ```extrusion_corner_bracket_hole_offset(type)``` | Hole offset from corner |
+| ```extrusion_corner_bracket_side_thickness(type)``` | Thickness of side of bracket |
+| ```extrusion_corner_bracket_size(type)``` | Size of bracket |
+| ```extrusion_inner_corner_bracket_size(type)``` | Size of inner bracket |
+
+### Modules
+| Module | Description |
+|:--- |:--- |
+| ```extrusion_corner_bracket(type)``` | Corner bracket for extrusion |
+| ```extrusion_corner_bracket_assembly(type, part_thickness = 2, screw_type = M4_cap_screw, nut_type = M4_sliding_t_nut, max_screw_depth = 6)``` | Assembly with fasteners in place |
+| ```extrusion_corner_bracket_hole_positions(type)``` | Place children at hole positions |
+| ```extrusion_inner_corner_bracket(type, grub_screws = true)``` | Inner corner bracket for extrusion |
+
+![extrusion_brackets](tests/png/extrusion_brackets.png)
+
+### Vitamins
+| Qty | Module call | BOM entry |
+| ---:|:--- |:---|
+|   1 | ```extrusion(E2020, 20)``` |  Extrusion E2020 x 20mm |
+|   1 | ```extrusion(E2020, 30)``` |  Extrusion E2020 x 30mm |
+|   1 | ```extrusion(E2020, 40)``` |  Extrusion E2020 x 40mm |
+|   1 | ```extrusion(E2020, 50)``` |  Extrusion E2020 x 50mm |
+|   2 | ```extrusion_corner_bracket(E20_corner_bracket)``` |  Extrusion corner bracket 20 |
+|   2 | ```extrusion_inner_corner_bracket(E20_inner_corner_bracket, true)``` |  Extrusion inner corner bracket 4.5 |
+|   1 | ```extrusion_inner_corner_bracket(E20_inner_corner_bracket, false)``` |  Extrusion inner corner bracket 4.5 |
+|   4 | ```sliding_t_nut(M4_sliding_t_nut)``` |  Nut M4 sliding T |
+|   4 | ```screw(M4_cap_screw, 8)``` |  Screw M4 cap x  8mm |
+|   4 | ```washer(M4_washer)``` |  Washer  M4 x 9mm x 0.8mm |
+
+
 <a href="#top">Top</a>
 
 ---
@@ -617,21 +659,22 @@ Aluminium  extrusion.
 ### Modules
 | Module | Description |
 |:--- |:--- |
-| ```extrusion(type, length, cornerHole = false)``` | Draw the specified extrusion |
+| ```extrusion(type, length, center = true, cornerHole = false)``` | Draw the specified extrusion |
 
 ![extrusions](tests/png/extrusions.png)
 
 ### Vitamins
 | Qty | Module call | BOM entry |
 | ---:|:--- |:---|
+|   1 | ```extrusion(E1515, 80)``` |  Extrusion E1515 x 80mm |
 |   1 | ```extrusion(E2020, 80)``` |  Extrusion E2020 x 80mm |
 |   1 | ```extrusion(E2040, 80)``` |  Extrusion E2040 x 80mm |
 |   1 | ```extrusion(E2060, 80)``` |  Extrusion E2060 x 80mm |
 |   1 | ```extrusion(E2080, 80)``` |  Extrusion E2080 x 80mm |
-|   1 | ```extrusion(E3030, 80)``` |  Extrusion E3030 x 80mm |
-|   1 | ```extrusion(E3060, 80)``` |  Extrusion E3060 x 80mm |
-|   1 | ```extrusion(E4040, 80)``` |  Extrusion E4040 x 80mm |
-|   1 | ```extrusion(E4080, 80)``` |  Extrusion E4080 x 80mm |
+|   1 | ```extrusion(E3030, 80, cornerHole = true)``` |  Extrusion E3030 x 80mm |
+|   1 | ```extrusion(E3060, 80, cornerHole = true)``` |  Extrusion E3060 x 80mm |
+|   1 | ```extrusion(E4040, 80, cornerHole = true)``` |  Extrusion E4040 x 80mm |
+|   1 | ```extrusion(E4080, 80, cornerHole = true)``` |  Extrusion E4080 x 80mm |
 
 
 <a href="#top">Top</a>
@@ -824,7 +867,6 @@ Parametric green terminal blocks
 | Module | Description |
 |:--- |:--- |
 | ```green_terminal(type, ways, skip = [], colour = "lime")``` | Draw green terminal blocks, skip can be used to remove pins. |
-| ```terminal_254(ways, skip = [])``` | Draw 0.1" terminal block |
 
 ![green_terminals](tests/png/green_terminals.png)
 
@@ -934,8 +976,8 @@ Mini LCD Celsius Digital Thermometer Hygrometer Temperature Humidity Meter Gauge
 <a href="#top">Top</a>
 
 ---
-<a name="Iecs"></a>
-## Iecs
+<a name="IECs"></a>
+## IECs
 IEC mains inlets and outlet.
 
 
@@ -943,7 +985,7 @@ IEC mains inlets and outlet.
 
 [vitamins/iec.scad](vitamins/iec.scad) Implementation.
 
-[tests/iecs.scad](tests/iecs.scad) Code for this example.
+[tests/IECs.scad](tests/IECs.scad) Code for this example.
 
 ### Properties
 | Function | Description |
@@ -1090,8 +1132,61 @@ E.g. a "brown" socket for mains live needs to be displayed as "sienna" to look r
 <a href="#top">Top</a>
 
 ---
-<a name="Ldrs"></a>
-## Ldrs
+<a name="KP_pillow_blocks"></a>
+## KP_pillow_blocks
+KP pillow block bearings
+
+
+[vitamins/kp_pillow_blocks.scad](vitamins/kp_pillow_blocks.scad) Object definitions.
+
+[vitamins/kp_pillow_block.scad](vitamins/kp_pillow_block.scad) Implementation.
+
+[tests/KP_pillow_blocks.scad](tests/KP_pillow_blocks.scad) Code for this example.
+
+### Properties
+| Function | Description |
+|:--- |:--- |
+| ```kp_base_height(type)``` | Height of base containing the bolts |
+| ```kp_diameter(type)``` | Rod hole diameter |
+| ```kp_hole_offset(type)``` | Rod hole offset |
+| ```kp_screw_separation(type)``` | Separation of bolts in the base |
+
+### Functions
+| Function | Description |
+|:--- |:--- |
+| ```kp_size(type)``` | Size of bracket |
+
+### Modules
+| Module | Description |
+|:--- |:--- |
+| ```kp_pillow_block(type)``` | Draw the KP pillow block |
+| ```kp_pillow_block_assembly(type, part_thickness = 2, screw_type = M5_cap_screw, nut_type = undef)``` | Assembly with fasteners in place |
+| ```kp_pillow_block_hole_positions(type)``` | Place children at hole positions |
+
+![kp_pillow_blocks](tests/png/kp_pillow_blocks.png)
+
+### Vitamins
+| Qty | Module call | BOM entry |
+| ---:|:--- |:---|
+|   1 | ```kp_pillow_block(KP000)``` |  KP000 pillow block |
+|   1 | ```kp_pillow_block(KP001)``` |  KP001 pillow block |
+|   1 | ```kp_pillow_block(KP08_15)``` |  KP08_15 pillow block |
+|   1 | ```kp_pillow_block(KP08_18)``` |  KP08_18 pillow block |
+|   2 | ```sliding_t_nut(M4_hammer_nut)``` |  Nut M4 hammer |
+|   2 | ```sliding_t_nut(M4_sliding_t_nut)``` |  Nut M4 sliding T |
+|   2 | ```sliding_t_nut(M5_sliding_t_nut)``` |  Nut M5 sliding T |
+|   2 | ```nut(M5_nut, nyloc = undef)``` |  Nut M5 x 4mm  |
+|   4 | ```screw(M4_cap_screw, 10)``` |  Screw M4 cap x 10mm |
+|   4 | ```screw(M5_cap_screw, 12)``` |  Screw M5 cap x 12mm |
+|   4 | ```washer(M4_washer)``` |  Washer  M4 x 9mm x 0.8mm |
+|   6 | ```washer(M5_washer)``` |  Washer  M5 x 10mm x 1mm |
+
+
+<a href="#top">Top</a>
+
+---
+<a name="LDRs"></a>
+## LDRs
 Light dependent resistors.
 
 Larger ones seem to have both a higher dark resistance and a lower bright light resistance.
@@ -1101,7 +1196,7 @@ Larger ones seem to have both a higher dark resistance and a lower bright light
 
 [vitamins/ldr.scad](vitamins/ldr.scad) Implementation.
 
-[tests/ldrs.scad](tests/ldrs.scad) Code for this example.
+[tests/LDRs.scad](tests/LDRs.scad) Code for this example.
 
 ### Properties
 | Function | Description |
@@ -1181,8 +1276,8 @@ Nuts for leadscrews.
 <a href="#top">Top</a>
 
 ---
-<a name="Leds"></a>
-## Leds
+<a name="LEDs"></a>
+## LEDs
 Standard domed through hole LEDs. Can specify colour and lead length.
 
 
@@ -1190,7 +1285,7 @@ Standard domed through hole LEDs. Can specify colour and lead length.
 
 [vitamins/led.scad](vitamins/led.scad) Implementation.
 
-[tests/leds.scad](tests/leds.scad) Code for this example.
+[tests/LEDs.scad](tests/LEDs.scad) Code for this example.
 
 ### Properties
 | Function | Description |
@@ -1594,6 +1689,9 @@ If a nut is given a child then it gets placed on its top surface.
 |:--- |:--- |
 | ```nut_radius(type)``` | Radius across the corners |
 | ```nut_size(type)``` | Diameter of the corresponding screw |
+| ```nut_square_size(type)``` | Diameter of the corresponding screw |
+| ```nut_square_thickness(type)``` | Thickness of the square nut |
+| ```nut_square_width(type)``` | Width of the square nut |
 | ```nut_trap_depth(type)``` | Depth of nut trap |
 | ```nut_washer(type)``` | Corresponding washer |
 
@@ -1610,6 +1708,7 @@ If a nut is given a child then it gets placed on its top surface.
 |:--- |:--- |
 | ```nut(type, nyloc = false, brass = false, nylon = false)``` | Draw specified nut |
 | ```nut_and_washer(type, nyloc)``` | Draw nut with corresponding washer |
+| ```nut_square(type, brass = false, nylon = false)``` | Draw specified square nut |
 | ```nut_trap(screw, nut, depth = 0, horizontal = false, supported = false, h = 200)``` | Make a nut trap |
 | ```wingnut(type)``` | Draw a wingnut |
 
@@ -1623,23 +1722,28 @@ If a nut is given a child then it gets placed on its top surface.
 |   1 | ```nut(M2p5_nut)``` |  Nut M2.5 x 2.2mm  |
 |   1 | ```nut(M2p5_nut, nyloc = true)``` |  Nut M2.5 x 2.2mm nyloc |
 |   1 | ```nut(M2p5_nut, nylon = true)``` |  Nut M2.5 x 2.2mm nylon |
-|   1 | ```hammer_nut(M3_hammer_nut)``` |  Nut M3 hammer |
+|   1 | ```sliding_t_nut(M3_hammer_nut)``` |  Nut M3 hammer |
 |   1 | ```sliding_t_nut(M3_sliding_t_nut)``` |  Nut M3 sliding T |
 |   1 | ```nut(M3_nut)``` |  Nut M3 x 2.4mm  |
 |   1 | ```nut(M3_nut, brass = true)``` |  Nut M3 x 2.4mm brass |
 |   1 | ```nut(M3_nut, nyloc = true)``` |  Nut M3 x 2.4mm nyloc |
-|   1 | ```hammer_nut(M4_hammer_nut)``` |  Nut M4 hammer |
+|   1 | ```nut(M3nS_thin_nut)``` |  Nut M3nS 5.5 x 1.8mm  |
+|   1 | ```sliding_t_nut(M4_hammer_nut)``` |  Nut M4 hammer |
 |   1 | ```sliding_t_nut(M4_sliding_t_nut)``` |  Nut M4 sliding T |
 |   1 | ```nut(M4_nut)``` |  Nut M4 x 3.2mm  |
 |   1 | ```nut(M4_nut, nyloc = true)``` |  Nut M4 x 3.2mm nyloc |
+|   1 | ```nut(M4nS_thin_nut)``` |  Nut M4nS 7 x 2.2mm  |
 |   1 | ```sliding_t_nut(M5_sliding_t_nut)``` |  Nut M5 sliding T |
 |   1 | ```nut(M5_nut)``` |  Nut M5 x 4mm  |
 |   1 | ```nut(M5_nut, nyloc = true)``` |  Nut M5 x 4mm nyloc |
+|   1 | ```nut(M5nS_thin_nut)``` |  Nut M5nS 8 x 2.7mm  |
 |   1 | ```nut(M6_half_nut)``` |  Nut M6 x 3mm  |
 |   1 | ```nut(M6_nut)``` |  Nut M6 x 5mm  |
 |   1 | ```nut(M6_nut, nyloc = true)``` |  Nut M6 x 5mm nyloc |
+|   1 | ```nut(M6nS_thin_nut)``` |  Nut M6nS 10 x 3.2mm  |
 |   1 | ```nut(M8_nut)``` |  Nut M8 x 6.5mm  |
 |   1 | ```nut(M8_nut, nyloc = true)``` |  Nut M8 x 6.5mm nyloc |
+|   1 | ```nut(M8nS_thin_nut)``` |  Nut M8nS 13 x 4mm  |
 |   1 | ```washer(M6_washer)``` |  Washer  M6 x 12.5mm x 1.5mm |
 |   1 | ```wingnut(M4_wingnut)``` |  Wingnut M4 |
 
@@ -1712,16 +1816,14 @@ A permanent magnet that can be magnatized and de-magnatized electronically.
 <a href="#top">Top</a>
 
 ---
-<a name="Pcbs"></a>
-## Pcbs
+<a name="PCB"></a>
+## PCB
 PCBs and perfboard with optional components. The shape can be a rectangle with optionally rounded corners or a polygon for odd shapes like Arduino.
 
 
-[vitamins/pcbs.scad](vitamins/pcbs.scad) Object definitions.
-
 [vitamins/pcb.scad](vitamins/pcb.scad) Implementation.
 
-[tests/pcbs.scad](tests/pcbs.scad) Code for this example.
+[tests/PCB.scad](tests/PCB.scad) Code for this example.
 
 ### Properties
 | Function | Description |
@@ -1778,8 +1880,93 @@ PCBs and perfboard with optional components. The shape can be a rectangle with o
 | ```pcb_screw_positions(type)``` | Positions children at the mounting hole positions |
 | ```pcb_spacer(screw, height, wall = 1.8, taper = 0)``` | Generate STL for PCB spacer |
 | ```rj45(cutout = false)``` | Draw RJ45 Ethernet connector |
-| ```terminal_35(ways)``` | Draw 3.5mm terminal block |
+| ```terminal_35(ways, colour = "blue")``` | Draw 3.5mm terminal block |
 | ```uSD(size, cutout = false)``` | Draw uSD socket |
+| ```usb_Ax1(cutout = false)``` | Draw USB type A single socket |
+| ```usb_Ax2(cutout = false)``` | Draw USB type A dual socket |
+| ```usb_B(cutout = false)``` | Draw USB B connector |
+| ```usb_uA(cutout = false)``` | Draw USB micro A connector |
+
+![pcb](tests/png/pcb.png)
+
+### Vitamins
+| Qty | Module call | BOM entry |
+| ---:|:--- |:---|
+|   1 | ```pcb(TestPCB)``` |  Test PCB |
+
+
+<a href="#top">Top</a>
+
+---
+<a name="PCBs"></a>
+## PCBs
+PCBs and perfboard with optional components. The shape can be a rectangle with optionally rounded corners or a polygon for odd shapes like Arduino.
+
+
+[vitamins/pcbs.scad](vitamins/pcbs.scad) Object definitions.
+
+[vitamins/pcb.scad](vitamins/pcb.scad) Implementation.
+
+[tests/PCBs.scad](tests/PCBs.scad) Code for this example.
+
+### Properties
+| Function | Description |
+|:--- |:--- |
+| ```hdmi_depth(type)``` | Front to back depth |
+| ```hdmi_height(type)``` | Outside height above the PCB |
+| ```hdmi_height1(type)``` | Inside height at the sides |
+| ```hdmi_height2(type)``` | Inside height in the middle |
+| ```hdmi_thickness(type)``` | Wall thickness of the metal |
+| ```hdmi_width1(type)``` | Inside width at the top |
+| ```hdmi_width2(type)``` | Inside width at the bottom |
+| ```pcb_accessories(type)``` | List of accessories to go on the BOM, SD cards, USB cables, etc. |
+| ```pcb_colour(type)``` | Colour of the subtrate |
+| ```pcb_components(type)``` | List of components |
+| ```pcb_grid(type)``` | Grid if a perfboard |
+| ```pcb_hole_d(type)``` | Mounting hole diameter |
+| ```pcb_holes(type)``` | List of hole positions |
+| ```pcb_land_d(type)``` | Pad around mounting hole |
+| ```pcb_length(type)``` | Length |
+| ```pcb_name(type)``` | Description |
+| ```pcb_parts_on_bom(type)``` | True if the parts should be separate BOM items |
+| ```pcb_polygon(type)``` | Optional outline polygon for odd shaped boards |
+| ```pcb_radius(type)``` | Corner radius |
+| ```pcb_thickness(type)``` | Thickness |
+| ```pcb_width(type)``` | Width |
+
+### Functions
+| Function | Description |
+|:--- |:--- |
+| ```pcb_component_position(type, name, index = 0)``` | Return x y position of specified component |
+| ```pcb_coord(type, p)``` | Convert offsets from the edge to coordinates relative to the centre |
+| ```pcb_grid_pos(type, x, y, z = 0)``` | Returns a pcb grid position |
+| ```pcb_screw(type, cap = hs_cap)``` | Mounting screw type |
+
+### Modules
+| Module | Description |
+|:--- |:--- |
+| ```barrel_jack(cutout = false)``` | Draw barrel power jack |
+| ```buzzer(height, diameter, colour)``` | Draw PCB buzzer with specified height, diameter and color |
+| ```chip(length, width, thickness, colour, cutout = false)``` | Draw a coloured cube to represent a chip, or other rectangular component |
+| ```flat_flex(cutout = false)``` | Draw flat flexistrip connector as used on RPI0 |
+| ```flex(cutout = false)``` | Draw flexistrip connector |
+| ```hdmi(type, cutout = false)``` | Draw HDMI socket |
+| ```jack(cutout = false)``` | Draw 3.5mm jack |
+| ```molex_254(ways)``` | Draw molex header |
+| ```pcb(type)``` | Draw specified PCB |
+| ```pcb_assembly(type, height, thickness)``` | Draw PCB assembly with spaces and fasteners in place |
+| ```pcb_base(type, height, thickness, wall = 2)``` | Generate STL for a base with PCB spacers |
+| ```pcb_component(comp, cutouts = false, angle = undef)``` | Draw pcb component from description |
+| ```pcb_component_position(type, name)``` | Position child at the specified component position |
+| ```pcb_components(type, cutouts = false, angle = undef)``` | Draw list of PCB components on the PCB |
+| ```pcb_cutouts(type, angle = undef)``` | Make cut outs to clear components on a PCB |
+| ```pcb_grid(type, x, y, z = 0)``` | Positions children at specified grid position |
+| ```pcb_screw_positions(type)``` | Positions children at the mounting hole positions |
+| ```pcb_spacer(screw, height, wall = 1.8, taper = 0)``` | Generate STL for PCB spacer |
+| ```rj45(cutout = false)``` | Draw RJ45 Ethernet connector |
+| ```terminal_35(ways, colour = "blue")``` | Draw 3.5mm terminal block |
+| ```uSD(size, cutout = false)``` | Draw uSD socket |
+| ```usb_Ax1(cutout = false)``` | Draw USB type A single socket |
 | ```usb_Ax2(cutout = false)``` | Draw USB type A dual socket |
 | ```usb_B(cutout = false)``` | Draw USB B connector |
 | ```usb_uA(cutout = false)``` | Draw USB micro A connector |
@@ -1804,7 +1991,7 @@ PCBs and perfboard with optional components. The shape can be a rectangle with o
 |   1 | ```molex_254(2)``` |  Molex KK header 2 way |
 |   1 | ```molex_254(3)``` |  Molex KK header 3 way |
 |  16 | ```nut(M2_nut, nyloc = true)``` |  Nut M2 x 1.6mm nyloc |
-|  32 | ```nut(M2p5_nut, nyloc = true)``` |  Nut M2.5 x 2.2mm nyloc |
+|  30 | ```nut(M2p5_nut, nyloc = true)``` |  Nut M2.5 x 2.2mm nyloc |
 |  12 | ```nut(M3_nut, nyloc = true)``` |  Nut M3 x 2.4mm nyloc |
 |  12 | ```nut(M4_nut, nyloc = true)``` |  Nut M4 x 3.2mm nyloc |
 |   1 | ```pcb(PI_IO)``` |  PI_IO V2 |
@@ -1819,21 +2006,19 @@ PCBs and perfboard with optional components. The shape can be a rectangle with o
 |   1 | ```pcb(RPI3)``` |  Raspberry Pi 3 |
 |   1 | ```pcb(RPI0)``` |  Raspberry Pi Zero |
 |  16 | ```screw(M2_cap_screw, 25)``` |  Screw M2 cap x 25mm |
-|   4 | ```screw(M2p5_cap_screw, 16)``` |  Screw M2.5 cap x 16mm |
-|   8 | ```screw(M2p5_cap_screw, 20)``` |  Screw M2.5 cap x 20mm |
-|   4 | ```screw(M2p5_cap_screw, 35)``` |  Screw M2.5 cap x 35mm |
-|   8 | ```screw(M2p5_pan_screw, 20)``` |  Screw M2.5 pan x 20mm |
-|   4 | ```screw(M2p5_pan_screw, 25)``` |  Screw M2.5 pan x 25mm |
+|   2 | ```screw(M2p5_cap_screw, 16)``` |  Screw M2.5 cap x 16mm |
+|  12 | ```screw(M2p5_cap_screw, 20)``` |  Screw M2.5 cap x 20mm |
+|   4 | ```screw(M2p5_pan_screw, 20)``` |  Screw M2.5 pan x 20mm |
+|   8 | ```screw(M2p5_pan_screw, 25)``` |  Screw M2.5 pan x 25mm |
 |   4 | ```screw(M2p5_pan_screw, 35)``` |  Screw M2.5 pan x 35mm |
 |   8 | ```screw(M3_cap_screw, 30)``` |  Screw M3 cap x 30mm |
 |   4 | ```screw(M3_cap_screw, 35)``` |  Screw M3 cap x 35mm |
-|   4 | ```screw(M4_cap_screw, 30)``` |  Screw M4 cap x 30mm |
-|   8 | ```screw(M4_cap_screw, 35)``` |  Screw M4 cap x 35mm |
+|  12 | ```screw(M4_cap_screw, 35)``` |  Screw M4 cap x 35mm |
 |   3 | ```terminal_35(2)``` |  Terminal block 2 way 3.5mm |
 |   2 | ```green_terminal(gt_2p54, 4)``` |  Terminal block 4 way 0.1" |
 |   1 |  |  USB A to Mini B lead |
 |  16 | ```washer(M2_washer)``` |  Washer  M2 x 5mm x 0.3mm |
-|  32 | ```washer(M2p5_washer)``` |  Washer  M2.5 x 5.9mm x 0.5mm |
+|  30 | ```washer(M2p5_washer)``` |  Washer  M2.5 x 5.9mm x 0.5mm |
 |  12 | ```washer(M3_washer)``` |  Washer  M3 x 7mm x 0.5mm |
 |  12 | ```washer(M4_washer)``` |  Washer  M4 x 9mm x 0.8mm |
 |   1 | ```pcb(ZC_A0591)``` |  ZC-A0591 ULN2003 driver PCB |
@@ -1841,24 +2026,24 @@ PCBs and perfboard with optional components. The shape can be a rectangle with o
 ### Printed
 | Qty | Filename |
 | ---:|:--- |
-|   4 | pcb_spacer20130.stl |
 |   4 | pcb_spacer20140.stl |
 |   4 | pcb_spacer20150.stl |
 |   4 | pcb_spacer20160.stl |
-|   4 | pcb_spacer25100_2.stl |
+|   4 | pcb_spacer20170.stl |
+|   4 | pcb_spacer25100.stl |
 |   4 | pcb_spacer25110_2.stl |
 |   4 | pcb_spacer25120_2.stl |
-|   4 | pcb_spacer25230.stl |
+|   4 | pcb_spacer25130_2.stl |
 |   4 | pcb_spacer25240.stl |
-|   4 | pcb_spacer2570.stl |
+|   2 | pcb_spacer2550.stl |
 |   4 | pcb_spacer2580.stl |
 |   4 | pcb_spacer2590.stl |
-|   4 | pcb_spacer30170.stl |
 |   4 | pcb_spacer30180.stl |
-|   4 | pcb_spacer30220.stl |
-|   4 | pcb_spacer40190.stl |
+|   4 | pcb_spacer30190.stl |
+|   4 | pcb_spacer30230.stl |
 |   4 | pcb_spacer40200.stl |
 |   4 | pcb_spacer40210.stl |
+|   4 | pcb_spacer40220.stl |
 
 
 <a href="#top">Top</a>
@@ -1941,8 +2126,8 @@ Pin headers and sockets, etc.
 | ```idc_transition(type, cols = 5, skip = [], cutout = false)``` | Draw IDC transition header |
 | ```jst_xh_header(type, pin_count, right_angle=false, colour, pin_colour)``` | Draw JST XH connector |
 | ```pin(type, length = undef)``` | Draw a header pin |
-| ```pin_header(type, cols = 1, rows = 1, smt = false, right_angle = false, cutout = false)``` | Draw pin header |
-| ```pin_socket(type, cols = 1, rows = 1, right_angle = false, height = 0, smt = false, cutout = false)``` | Draw pin socket |
+| ```pin_header(type, cols = 1, rows = 1, smt = false, right_angle = false, cutout = false, colour)``` | Draw pin header |
+| ```pin_socket(type, cols = 1, rows = 1, right_angle = false, height = 0, smt = false, cutout = false, colour)``` | Draw pin socket |
 
 ![pin_headers](tests/png/pin_headers.png)
 
@@ -1960,8 +2145,8 @@ Pin headers and sockets, etc.
 <a href="#top">Top</a>
 
 ---
-<a name="Psus"></a>
-## Psus
+<a name="PSUs"></a>
+## PSUs
 Powersupplies. Can be a simple cube or can be defined by a list of six faces, each with thickness, holes, cutouts, etc.
 
 Face order is bottom, top, left, right, front, back.
@@ -1971,7 +2156,7 @@ Face order is bottom, top, left, right, front, back.
 
 [vitamins/psu.scad](vitamins/psu.scad) Implementation.
 
-[tests/psus.scad](tests/psus.scad) Code for this example.
+[tests/PSUs.scad](tests/PSUs.scad) Code for this example.
 
 ### Properties
 | Function | Description |
@@ -1985,6 +2170,7 @@ Face order is bottom, top, left, right, front, back.
 | ```psu_face_iec(type)``` | IEC connector x,y, rotation and type |
 | ```psu_face_switch(type)``` | Rocker switch x,y, rotation and type |
 | ```psu_face_thickness(type)``` | The thickness |
+| ```psu_face_vents(type)``` | Vents array position x,y, rotation, size and corner radius |
 | ```psu_faces(type)``` | List of face descriptions |
 | ```psu_height(type)``` | Height |
 | ```psu_left_bay(type)``` | Bay for terminals |
@@ -2286,6 +2472,8 @@ Rocker switch. Also used for neon indicator in the same form factor.
 ## Rod
 Steel rods and studding with chamfered ends.
 
+These items are sysmtrical, so by default the origin is in the centre but it can be changed to the bottom.
+
 
 [vitamins/rod.scad](vitamins/rod.scad) Implementation.
 
@@ -2411,13 +2599,16 @@ Machine screws and wood screws with various head styles.
 <a href="#top">Top</a>
 
 ---
-<a name="Scs_bearing_blocks"></a>
-## Scs_bearing_blocks
+<a name="SCS_bearing_blocks"></a>
+## SCS_bearing_blocks
+SCSnUU and SCSnLUU bearing blocks
+
+
 [vitamins/scs_bearing_blocks.scad](vitamins/scs_bearing_blocks.scad) Object definitions.
 
 [vitamins/scs_bearing_block.scad](vitamins/scs_bearing_block.scad) Implementation.
 
-[tests/scs_bearing_blocks.scad](tests/scs_bearing_blocks.scad) Code for this example.
+[tests/SCS_bearing_blocks.scad](tests/SCS_bearing_blocks.scad) Code for this example.
 
 ### Properties
 | Function | Description |
@@ -2558,8 +2749,8 @@ Note that modules that drill holes will return a 2D object if ```h``` is set to
 <a href="#top">Top</a>
 
 ---
-<a name="Sk_brackets"></a>
-## Sk_brackets
+<a name="SK_brackets"></a>
+## SK_brackets
 SK shaft support brackets
 
 
@@ -2567,7 +2758,7 @@ SK shaft support brackets
 
 [vitamins/sk_bracket.scad](vitamins/sk_bracket.scad) Implementation.
 
-[tests/sk_brackets.scad](tests/sk_brackets.scad) Code for this example.
+[tests/SK_brackets.scad](tests/SK_brackets.scad) Code for this example.
 
 ### Properties
 | Function | Description |
@@ -2586,21 +2777,29 @@ SK shaft support brackets
 | Module | Description |
 |:--- |:--- |
 | ```sk_bracket(type)``` | SK shaft support bracket |
-| ```sk_bracket_assembly(type, screw_length = 16, screw_type = M5_cap_screw, nut_type = undef)``` | Assembly with fasteners in place |
+| ```sk_bracket_assembly(type, part_thickness = 2, screw_type = M5_cap_screw, nut_type = undef, max_screw_depth = 6)``` | Assembly with fasteners in place |
+| ```sk_bracket_hole_positions(type)``` | Place children at hole positions |
 
 ![sk_brackets](tests/png/sk_brackets.png)
 
 ### Vitamins
 | Qty | Module call | BOM entry |
 | ---:|:--- |:---|
-|   4 | ```sliding_t_nut(M5_sliding_t_nut)``` |  Nut M5 sliding T |
-|   4 | ```nut(M5_nut)``` |  Nut M5 x 4mm  |
+|   2 | ```extrusion(E2020, 20)``` |  Extrusion E2020 x 20mm |
+|   2 | ```extrusion(E3030, 20)``` |  Extrusion E3030 x 20mm |
+|   2 | ```sliding_t_nut(M4_hammer_nut)``` |  Nut M4 hammer |
+|   2 | ```sliding_t_nut(M4_sliding_t_nut)``` |  Nut M4 sliding T |
+|   2 | ```sliding_t_nut(M5_sliding_t_nut)``` |  Nut M5 sliding T |
+|   2 | ```nut(M5_nut, nyloc = undef)``` |  Nut M5 x 4mm  |
 |   1 | ```sk_bracket(SK10)``` |  SK10 shaft support bracket |
 |   1 | ```sk_bracket(SK12)``` |  SK12 shaft support bracket |
 |   1 | ```sk_bracket(SK16)``` |  SK16 shaft support bracket |
 |   1 | ```sk_bracket(SK8)``` |  SK8 shaft support bracket |
-|   8 | ```screw(M5_cap_screw, 16)``` |  Screw M5 cap x 16mm |
-|  12 | ```washer(M5_washer)``` |  Washer  M5 x 10mm x 1mm |
+|   2 | ```screw(M4_cap_screw, 12)``` |  Screw M4 cap x 12mm |
+|   2 | ```screw(M4_dome_screw, 12)``` |  Screw M4 dome x 12mm |
+|   4 | ```screw(M5_cap_screw, 16)``` |  Screw M5 cap x 16mm |
+|   4 | ```washer(M4_washer)``` |  Washer  M4 x 9mm x 0.8mm |
+|   6 | ```washer(M5_washer)``` |  Washer  M5 x 10mm x 1mm |
 
 
 <a href="#top">Top</a>
@@ -2689,6 +2888,8 @@ Filament spool models
 ## Springs
 Compression springs. Can be tapered, have open, closed or ground ends. Ground ends will render a lot slower.
 
+By default springs have their origin at the bottom but can be centered.
+
 
 [vitamins/springs.scad](vitamins/springs.scad) Object definitions.
 
@@ -2717,7 +2918,7 @@ Compression springs. Can be tapered, have open, closed or ground ends. Ground en
 ### Modules
 | Module | Description |
 |:--- |:--- |
-| ```comp_spring(type, l = 0)``` | Draw specified spring, l can be set to specify the compressed length. |
+| ```comp_spring(type, l = 0, center = false)``` | Draw specified spring, l can be set to specify the compressed length. |
 
 ![springs](tests/png/springs.png)
 
@@ -2731,8 +2932,8 @@ Compression springs. Can be tapered, have open, closed or ground ends. Ground en
 <a href="#top">Top</a>
 
 ---
-<a name="Ssrs"></a>
-## Ssrs
+<a name="SSRs"></a>
+## SSRs
 Solid state relays.
 
 
@@ -2740,7 +2941,7 @@ Solid state relays.
 
 [vitamins/ssr.scad](vitamins/ssr.scad) Implementation.
 
-[tests/ssrs.scad](tests/ssrs.scad) Code for this example.
+[tests/SSRs.scad](tests/SSRs.scad) Code for this example.
 
 ### Properties
 | Function | Description |
@@ -2819,15 +3020,16 @@ NEMA stepper motor model.
 ### Vitamins
 | Qty | Module call | BOM entry |
 | ---:|:--- |:---|
-|  24 | ```screw(M3_pan_screw, 8)``` |  Screw M3 pan x  8mm |
+|   4 | ```ring_terminal(M3_ringterm)``` |  Ring terminal 3mm |
+|  15 | ```screw(M3_pan_screw, 8)``` |  Screw M3 pan x  8mm |
 |   1 | ```NEMA(NEMA14)``` |  Stepper motor NEMA14 x 36mm |
 |   1 | ```NEMA(NEMA16)``` |  Stepper motor NEMA16 x 19.2mm |
 |   1 | ```NEMA(NEMA17S)``` |  Stepper motor NEMA17 x 34mm |
 |   1 | ```NEMA(NEMA17M)``` |  Stepper motor NEMA17 x 40mm |
 |   1 | ```NEMA(NEMA17)``` |  Stepper motor NEMA17 x 47mm |
 |   1 | ```NEMA(NEMA23)``` |  Stepper motor NEMA22 x 51.2mm |
-|  24 | ```washer(M3_washer)``` |  Washer  M3 x 7mm x 0.5mm |
-|  24 | ```star_washer(M3_washer)``` |  Washer star M3 x 0.5mm |
+|  11 | ```washer(M3_washer)``` |  Washer  M3 x 7mm x 0.5mm |
+|  15 | ```star_washer(M3_washer)``` |  Washer star M3 x 0.5mm |
 
 
 <a href="#top">Top</a>
@@ -4048,15 +4250,15 @@ Printed handle that can be printed without needing support material due to its t
 <a href="#top">Top</a>
 
 ---
-<a name="Pcb_mount"></a>
-## Pcb_mount
+<a name="PCB_mount"></a>
+## PCB_mount
 A frame to mount a PCB by its corners when it has no mounting holes.
 The stl must be given a parameterless wrapper in the project that uses it.
 
 
 [printed/pcb_mount.scad](printed/pcb_mount.scad) Implementation.
 
-[tests/pcb_mount.scad](tests/pcb_mount.scad) Code for this example.
+[tests/PCB_mount.scad](tests/PCB_mount.scad) Code for this example.
 
 ### Functions
 | Function | Description |
@@ -4096,15 +4298,96 @@ The stl must be given a parameterless wrapper in the project that uses it.
 <a href="#top">Top</a>
 
 ---
-<a name="Psu_shroud"></a>
-## Psu_shroud
+<a name="Printed_box"></a>
+## Printed_box
+A fully parametric 3D printed case that can be customised with cutouts and additions specified by children.
+
+The walls can be made wavy, which possibly reduces warping when printing and looks nice, however if holes need to be made
+in the sides you can't print a wavy bridge. Any holes need to be surrounded by a 45&deg; chamfer to make the bridges straight.
+See the mounting points for the feet in the first example.
+
+It can also have printed feet on the base with the screws doubling up to hold the base on.
+
+
+[printed/printed_box.scad](printed/printed_box.scad) Implementation.
+
+[tests/printed_box.scad](tests/printed_box.scad) Code for this example.
+
+### Properties
+| Function | Description |
+|:--- |:--- |
+| ```pbox_base(type)``` | Base thickness, can be zero for no base |
+| ```pbox_base_screw(type)``` | Screw type if no feet |
+| ```pbox_depth(type)``` | Internal depth |
+| ```pbox_foot(type)``` | Printed foot, can be false to suppress feet |
+| ```pbox_height(type)``` | Internal height |
+| ```pbox_name(type)``` | Name to allow more than one box in a project |
+| ```pbox_radius(type)``` | Internal corner radius |
+| ```pbox_ridges(type)``` | Ridge wavelength and amplitude |
+| ```pbox_top(type)``` | Top thickness |
+| ```pbox_wall(type)``` | Wall thickness |
+| ```pbox_width(type)``` | Internal width |
+
+### Functions
+| Function | Description |
+|:--- |:--- |
+| ```pbox_inclusion(type)``` | How far the ledge for the base extends inwards |
+| ```pbox_insert(type)``` | The insert for the base screws |
+| ```pbox_screw(type)``` | Foot screw if got feet else base_screw |
+| ```pbox_screw_inset(type)``` | How far the base screws are inset |
+| ```pbox_screw_length(type, panel_thickness = 0)``` | Length of the base screw |
+| ```pbox_total_height(type)``` | Total height including base overlap |
+| ```pbox_washer(type)``` | The washer for the base screws |
+
+### Modules
+| Module | Description |
+|:--- |:--- |
+| ```pbox(type)``` | Generate the STL for the main case |
+| ```pbox_base(type)``` | Generate the STL for the base |
+| ```pbox_base_screws(type, thickness = 0)``` | Place the screws and feet |
+| ```pbox_inserts(type)``` | Place the inserts for the base screws |
+
+![printed_box](tests/png/printed_box.png)
+
+### Vitamins
+| Qty | Module call | BOM entry |
+| ---:|:--- |:---|
+|   4 | ```insert(F1BM)``` |  Heatfit insert M2 |
+|   4 | ```insert(F1BM3)``` |  Heatfit insert M3 |
+|   4 | ```screw(M2_cap_screw, 6)``` |  Screw M2 cap x  6mm |
+|   3 | ```screw(M3_pan_screw, 6)``` |  Screw M3 pan x  6mm |
+|   4 | ```screw(M3_pan_screw, 10)``` |  Screw M3 pan x 10mm |
+|   4 | ```washer(M2_washer)``` |  Washer  M2 x 5mm x 0.3mm |
+|   7 | ```washer(M3_washer)``` |  Washer  M3 x 7mm x 0.5mm |
+
+### Printed
+| Qty | Filename |
+| ---:|:--- |
+|   1 | box1.stl |
+|   1 | box1_base.stl |
+|   7 | foot.stl |
+|   1 | smooth_box.stl |
+|   1 | smooth_box_base.stl |
+
+### Assemblies
+| Qty | Name |
+| ---:|:--- |
+|   1 | box1_assembly |
+|   1 | box2_assembly |
+
+
+<a href="#top">Top</a>
+
+---
+<a name="PSU_shroud"></a>
+## PSU_shroud
 A cover to go over the mains end of a PSU terminal strip to make it safe.
 The stl and assembly must be given a name and parameterless wrappers for the stl and assembly added to the project.
 
 
 [printed/psu_shroud.scad](printed/psu_shroud.scad) Implementation.
 
-[tests/psu_shroud.scad](tests/psu_shroud.scad) Code for this example.
+[tests/PSU_shroud.scad](tests/PSU_shroud.scad) Code for this example.
 
 ### Functions
 | Function | Description |
@@ -4132,23 +4415,25 @@ The stl and assembly must be given a name and parameterless wrappers for the stl
 ### Vitamins
 | Qty | Module call | BOM entry |
 | ---:|:--- |:---|
-|   4 | ```insert(F1BM3)``` |  Heatfit insert M3 |
-|   4 | ```screw(M3_cap_screw, 10)``` |  Screw M3 cap x 10mm |
-|   4 | ```washer(M3_washer)``` |  Washer  M3 x 7mm x 0.5mm |
-|   4 | ```star_washer(M3_washer)``` |  Washer star M3 x 0.5mm |
-|   2 | ```ziptie(small_ziptie, 3)``` |  Ziptie 2.5mm x 100mm min length |
+|   6 | ```insert(F1BM3)``` |  Heatfit insert M3 |
+|   6 | ```screw(M3_cap_screw, 10)``` |  Screw M3 cap x 10mm |
+|   6 | ```washer(M3_washer)``` |  Washer  M3 x 7mm x 0.5mm |
+|   6 | ```star_washer(M3_washer)``` |  Washer star M3 x 0.5mm |
+|   3 | ```ziptie(small_ziptie, 3)``` |  Ziptie 2.5mm x 100mm min length |
 
 ### Printed
 | Qty | Filename |
 | ---:|:--- |
 |   1 | psu_shroud_PD_150_12.stl |
 |   1 | psu_shroud_S_250_48.stl |
+|   1 | psu_shroud_S_300_12.stl |
 
 ### Assemblies
 | Qty | Name |
 | ---:|:--- |
-|   1 | psu_shroud_PD_150_12_assembly |
-|   1 | psu_shroud_S_250_48_assembly |
+|   1 | PSU_shroud_PD_150_12_assembly |
+|   1 | PSU_shroud_S_250_48_assembly |
+|   1 | PSU_shroud_S_300_12_assembly |
 
 
 <a href="#top">Top</a>
@@ -4296,15 +4581,15 @@ UK 13A socket and printed backbox with earth terminal for the panel it is mounte
 <a href="#top">Top</a>
 
 ---
-<a name="Ssr_shroud"></a>
-## Ssr_shroud
+<a name="SSR_shroud"></a>
+## SSR_shroud
 A cover to go over the mains end of an SSR to make it safe to be touched.
-The stl and assembly must be given a name and parameterless wrappers for the stl and assembly added to the project.
+The STL and assembly must be given a name and parameterless wrappers for the stl and assembly added to the project.
 
 
 [printed/ssr_shroud.scad](printed/ssr_shroud.scad) Implementation.
 
-[tests/ssr_shroud.scad](tests/ssr_shroud.scad) Code for this example.
+[tests/SSR_shroud.scad](tests/SSR_shroud.scad) Code for this example.
 
 ### Functions
 | Function | Description |
@@ -4344,8 +4629,8 @@ The stl and assembly must be given a name and parameterless wrappers for the stl
 ### Assemblies
 | Qty | Name |
 | ---:|:--- |
-|   1 | ssr_shroud_SSR10DA_assembly |
-|   1 | ssr_shroud_SSR25DA_assembly |
+|   1 | SSR_shroud_SSR10DA_assembly |
+|   1 | SSR_shroud_SSR25DA_assembly |
 
 
 <a href="#top">Top</a>
@@ -4769,7 +5054,7 @@ a cylinder. To get around this a colour can be passed to thread that is used to
 
 Making the ends requires a CGAL intersection, which make threads relatively slow. For this reason they are generally disabled when using the GUI but can
 be enabled by setting ```$show_threads``` to ```true```. When the tests are run, by default, threads are enabled only for things that feature them like screws.
-This behaviour can be changed by setting a ```SHOW_THREADS``` environment variable to ```false``` to disable all threads and ```true``` to enable all threads.
+This behaviour can be changed by setting a ```NOPSCADLIB_SHOW_THREADS``` environment variable to ```false``` to disable all threads and ```true``` to enable all threads.
 The same variable also affects the generation of assembly diagrams.
 
 Threads obey the $fn, $fa, $fs variables.
@@ -4819,8 +5104,8 @@ Simple tube or ring
 <a href="#top">Top</a>
 
 ---
-<a name="Bom"></a>
-## Bom
+<a name="BOM"></a>
+## BOM
 Bill Of Materials generation via echo and the ```bom.py``` script. Also handles exploded assembly views and posing. Assembly instructions can precede the module
 definition that makes the assembly.
 
@@ -4830,7 +5115,7 @@ heirachical BOMs are also generated for real projects.
 
 [utils/core/bom.scad](utils/core/bom.scad) Implementation.
 
-[tests/bom.scad](tests/bom.scad) Code for this example.
+[tests/BOM.scad](tests/BOM.scad) Code for this example.
 
 ### Functions
 | Function | Description |
@@ -5072,11 +5357,12 @@ Small holes can get away without it, but they print better with truncated teardr
 ### Modules
 | Module | Description |
 |:--- |:--- |
-| ```semi_teardrop(h, r, d = undef, center = true)``` | A semi teardrop in the positive Y domain |
-| ```teardrop(h, r, center = true, truncate = true)``` | For making horizontal holes that don't need support material, set ```truncate = false``` to make traditional RepRap teardrops that don't even need bridging |
-| ```teardrop_plus(h, r, center = true, truncate = true)``` | Slightly bigger teardrop to allow for the 3D printing staircase effect |
-| ```tearslot(h, r, w, center = true)``` | A horizontal slot that doesn't need support material |
-| ```vertical_tearslot(h, r, l, center = true)``` | A vertical slot that doesn't need support material |
+| ```semi_teardrop(h, r, d = undef, center = true, chamfer = 0)``` | A semi teardrop in the positive Y domain |
+| ```teardrop(h, r, center = true, truncate = true, chamfer = 0)``` | For making horizontal holes that don't need support material, set ```truncate = false``` to make traditional RepRap teardrops that don't even need bridging |
+| ```teardrop_chamfer(h, center, chamfer)``` | Helper module for adding chamfer to a teardrop |
+| ```teardrop_plus(h, r, center = true, truncate = true, chamfer = 0)``` | Slightly bigger teardrop to allow for the 3D printing staircase effect |
+| ```tearslot(h, r, w, center = true, chamfer = 0)``` | A horizontal slot that doesn't need support material |
+| ```vertical_tearslot(h, r, l, center = true, chamfer = 0)``` | A vertical slot that doesn't need support material |
 
 ![teardrops](tests/png/teardrops.png)
 

scripts/bom.py

@@ -184,10 +184,17 @@ def parse_bom(file = "openscad.log", name = None):
                     main.add_part(s)
                     if stack:
                         main.assemblies[stack[-1]].add_part(s)
+        else:
+            if 'ERROR:' in line or 'WARNING:' in line:
+                print(line[:-1])
     return main
 
+def usage():
+    print("\nusage:\n\tbom [target_config] [<accessory_name>_assembly] - Generate BOMs for a project or an accessory to a project.")
+    sys.exit(1)
+
 def boms(target = None, assembly = None):
-    bom_dir = set_config(target) + "bom"
+    bom_dir = set_config(target, usage) + "bom"
     if assembly:
         bom_dir += "/accessories"
         if not os.path.isdir(bom_dir):
@@ -214,7 +221,7 @@ def boms(target = None, assembly = None):
     #
     # Run openscad
     #
-    openscad.run("-D","$bom=2","-D","$preview=true","-o", "openscad.echo", bom_maker_name)
+    openscad.run("-D","$bom=2","-D","$preview=true","-o", "openscad.echo", "-d", bom_dir + "/bom.deps", bom_maker_name)
     os.remove(bom_maker_name)
     print("Generating bom ...", end=" ")
 
@@ -236,11 +243,24 @@ def boms(target = None, assembly = None):
     print("done")
 
 if __name__ == '__main__':
-    args = len(sys.argv)
-    if args > 1:
-        if args > 2:
-            boms(sys.argv[1], sys.argv[2])
-        else:
-            boms(sys.argv[1])
+    if len(sys.argv) > 3: usage()
+
+    if len(sys.argv) == 3:
+        target, assembly = sys.argv[1], sys.argv[2]
     else:
-        boms();
+        if len(sys.argv) == 2:
+            if sys.argv[1][-9:] == "_assembly":
+                target, assembly = None, sys.argv[1]
+            else:
+                target, assembly = sys.argv[1], None
+        else:
+            target, assembly = None, None
+
+    if assembly:
+        if assembly[-9:] != "_assembly": usage()
+
+    try:
+        boms(target, assembly)
+    except Exception as e:
+        print(str(e))
+        sys.exit(1)

scripts/c14n_stl.py

@@ -113,5 +113,5 @@ if __name__ == '__main__':
     if len(sys.argv) == 2:
         canonicalise(sys.argv[1])
     else:
-        print("usage: c14n_stl file")
+        print("\nusage:\n\t c14n_stl file - Canonicalise an STL file created by OpenSCAD.")
         sys.exit(1)

scripts/deps.py

@@ -17,6 +17,7 @@
 # If not, see <https://www.gnu.org/licenses/>.
 #
 import os
+from set_config import source_dir
 
 def mtime(file):
     if os.path.isfile(file):
@@ -32,7 +33,7 @@ def read_deps(dname):
     deps = []
     for line in lines:
         if line.startswith('\t'):
-            dep = line[1 : -1].rstrip(' \\')
+            dep = line[1 : -1].rstrip(' \\').replace('\\ ', ' ')
             if not os.path.basename(dep) in ['stl.scad', 'dxf.scad', 'svf.scad', 'png.scad', 'target.scad']:
                 deps.append(dep)
     return deps
@@ -48,3 +49,18 @@ def check_deps(target, dname):
         if mtime(dep) > target_mtime:
             return dep + ' changed'
     return None
+
+def source_dirs(bom_dir):
+    dirs = set()
+    lib_dirs = set()
+    deps = read_deps(bom_dir + '/bom.deps')
+    cwd = os.getcwd().replace('\\', '/')
+    for dep in deps:
+        dir = os.path.dirname(dep)
+        if dir.startswith(cwd):
+            dirs.add(dir[len(cwd) + 1:])
+        else:
+            if dir.endswith('/printed'):
+                lib_dirs.add(dir)
+    dirs.remove(source_dir)
+    return [source_dir] + sorted(dirs) + sorted(lib_dirs)

scripts/doc_scripts.py

@@ -26,6 +26,7 @@ from __future__ import print_function
 
 import os
 from tests import do_cmd
+import argparse
 
 dir = 'scripts'
 
@@ -40,7 +41,7 @@ These are located in the ```scripts``` subdirectory, which needs to be added to
 They should work with both Python 2 and Python 3.
 
 | Script  | Function  |
-|:--|:--|''', file = doc_file)
+|:---|:---|''', file = doc_file)
         for file in os.listdir('scripts'):
             if file.endswith('.py'):
                 blurb = ''
@@ -74,4 +75,5 @@ They should work with both Python 2 and Python 3.
 
 
 if __name__ == '__main__':
+    argparse.ArgumentParser(description='Generate scripts/readme.md and make html versions of that and doc/usage.md').parse_args()
     doc_scripts()

scripts/exports.py

@@ -30,14 +30,14 @@ import times
 from deps import *
 import json
 
-def bom_to_parts(target_dir, part_type, assembly = None):
+def bom_to_parts(bom_dir, part_type, assembly = None):
     #
     # Make a list of all the parts in the BOM
     #
     part_files = []
     bom = assembly + '.txt' if assembly else "bom.txt"
     suffix = ".dxf" if part_type == 'svg' else '.' + part_type
-    with open(target_dir + "/../bom/" + bom, "rt") as f:
+    with open(bom_dir + '/' + bom, "rt") as f:
         for line in f.readlines():
             words = line.split()
             if words:
@@ -46,13 +46,24 @@ def bom_to_parts(target_dir, part_type, assembly = None):
                    part_files.append(last_word[:-4] + '.' + part_type)
     return part_files
 
+def usage(t):
+    print("\nusage:\n\t%ss [target_config] [<name1>.%s] ... [<nameN>.%s] - Generate specified %s files or all if none specified." % ( t, t, t, t.upper()))
+    sys.exit(1)
+
 def make_parts(target, part_type, parts = None):
     #
+    # Check list of parts is the correct type
+    #
+    if parts:
+        for p in parts:
+            if not p.endswith('.' + part_type): usage(part_type)
+    #
     # Make the target directory
     #
-    top_dir = set_config(target)
+    top_dir = set_config(target, lambda: usage(part_type))
     target_dir = top_dir + part_type + 's'
     deps_dir = top_dir + "deps"
+    bom_dir = top_dir + "bom"
     if not os.path.isdir(target_dir):
         os.makedirs(target_dir)
     if not os.path.isdir(deps_dir):
@@ -64,7 +75,7 @@ def make_parts(target, part_type, parts = None):
     if parts:
         targets = list(parts)           #copy the list so we dont modify the list passed in
     else:
-        targets = bom_to_parts(target_dir, part_type)
+        targets = bom_to_parts(bom_dir, part_type)
         for file in os.listdir(target_dir):
             if file.endswith('.' + part_type):
                 if not file in targets:
@@ -83,50 +94,49 @@ def make_parts(target, part_type, parts = None):
     #
     # Find all the scad files
     #
-    lib_dir = os.environ['OPENSCADPATH'] + '/NopSCADlib/printed'
     module_suffix = '_dxf' if part_type == 'svg' else '_' + part_type
-    for dir in [source_dir, lib_dir]:
-        for filename in os.listdir(dir):
-            if filename[-5:] == ".scad":
-                #
-                # find any modules ending in _<part_type>
-                #
-                with open(dir + "/" + filename, "r") as f:
-                    for line in f.readlines():
-                        words = line.split()
-                        if(len(words) and words[0] == "module"):
-                            module = words[1].split('(')[0]
-                            if module.endswith(module_suffix):
-                                base_name = module[:-4]
-                                part = base_name + '.' + part_type
-                                if part in targets:
-                                    #
-                                    # make a file to use the module
-                                    #
-                                    part_maker_name = part_type + ".scad"
-                                    with open(part_maker_name, "w") as f:
-                                        f.write("use <%s/%s>\n" % (dir, filename))
-                                        f.write("%s();\n" % module);
-                                    #
-                                    # Run openscad on the created file
-                                    #
-                                    part_file = target_dir + "/" + part
-                                    dname = deps_name(deps_dir, filename)
-                                    changed = check_deps(part_file, dname)
-                                    changed = times.check_have_time(changed, part)
-                                    if part_type == 'stl' and not changed and not part in bounds_map:
-                                        changed = "No bounds"
-                                    if changed:
-                                        print(changed)
-                                        t = time.time()
-                                        openscad.run("-D$bom=1", "-d", dname, "-o", part_file, part_maker_name)
-                                        times.add_time(part, t)
-                                        if part_type == 'stl':
-                                            bounds = c14n_stl.canonicalise(part_file)
-                                            bounds_map[part] = bounds
-
-                                    targets.remove(part)
-                                    os.remove(part_maker_name)
+    for dir in source_dirs(bom_dir):
+        if targets and os.path.isdir(dir):
+            for filename in os.listdir(dir):
+                if targets and filename[-5:] == ".scad":
+                    #
+                    # find any modules ending in _<part_type>
+                    #
+                    with open(dir + "/" + filename, "r") as f:
+                        for line in f.readlines():
+                            words = line.split()
+                            if(len(words) and words[0] == "module"):
+                                module = words[1].split('(')[0]
+                                if module.endswith(module_suffix):
+                                    base_name = module[:-4]
+                                    part = base_name + '.' + part_type
+                                    if part in targets:
+                                        #
+                                        # Run openscad on the created file
+                                        #
+                                        part_file = target_dir + "/" + part
+                                        dname = deps_name(deps_dir, filename)
+                                        changed = check_deps(part_file, dname)
+                                        changed = times.check_have_time(changed, part)
+                                        if part_type == 'stl' and not changed and not part in bounds_map:
+                                            changed = "No bounds"
+                                        if changed:
+                                            print(changed)
+                                            #
+                                            # make a file to use the module
+                                            #
+                                            part_maker_name = part_type + ".scad"
+                                            with open(part_maker_name, "w") as f:
+                                                f.write("use <%s/%s>\n" % (dir, filename))
+                                                f.write("%s();\n" % module);
+                                            t = time.time()
+                                            openscad.run("-D$bom=1", "-d", dname, "-o", part_file, part_maker_name)
+                                            times.add_time(part, t)
+                                            if part_type == 'stl':
+                                                bounds = c14n_stl.canonicalise(part_file)
+                                                bounds_map[part] = bounds
+                                            os.remove(part_maker_name)
+                                        targets.remove(part)
     #
     # Write new bounds file
     #
@@ -138,9 +148,6 @@ def make_parts(target, part_type, parts = None):
     #
     if targets:
         for part in targets:
-            if part[-4:] != '.' + part_type:
-                print(part, "is not a", part_type, "file")
-            else:
-                print("Could not find a module called", part[:-4] + module_suffix, "to make", part)
-        sys.exit(1)
+            print("Could not find a module called", part[:-4] + module_suffix, "to make", part)
+        usage(part_type)
     times.print_times()

scripts/gallery.py

@@ -30,6 +30,7 @@ import re
 from shutil import copyfile
 from tests import update_image
 import sys
+import argparse
 
 project_dirs = ['../..', 'examples']
 target_dir = 'gallery'
@@ -39,7 +40,6 @@ def gallery(force):
     if not os.path.isdir(target_dir):
         os.makedirs(target_dir)
 
-
     paths = sorted([pdir + '/' + i for pdir in project_dirs for i in os.listdir(pdir) if os.path.isdir(pdir + '/' + i + '/assemblies')], key = lambda s: os.path.basename(s))
     with open(output_name, 'wt') as output_file:
         print("# A gallery of projects made with NopSCADlib", file = output_file)
@@ -78,4 +78,8 @@ def gallery(force):
 
 if __name__ == '__main__':
     init()
-    gallery(force = len(sys.argv) > 1 and sys.argv[1] == '-f')
+    parser = argparse.ArgumentParser(description='Creates a galley of projects by copying the top level image and description to gallery/readme.md.')
+    parser.add_argument("-f", help = "run make_all in each project to force update", action="store_true")
+    args = parser.parse_args()
+
+    gallery(force = args.f)

scripts/make_all.py

@@ -27,9 +27,17 @@ from bom import boms
 from render import render
 from views import views
 from plateup import plateup
+from set_config import set_config
+
+
+def usage():
+    print("\nusage:\n\tmake_all [target_config] - Make all the manufacturing files and readme for a project.")
+    sys.exit(1)
 
 if __name__ == '__main__':
+    if len(sys.argv) > 2: usage()
     target = None if len(sys.argv) == 1 else sys.argv[1]
+    set_config(target, usage)
     boms(target)
     for part in ['stl', 'dxf']:
         make_parts(target, part)

scripts/options.py

@@ -23,7 +23,7 @@ import json, os, deps
 
 def check_options(dir = '.'):
     global options, options_mtime
-    options = { "show_threads": str(os.getenv("SHOW_THREADS")) }
+    options = { "show_threads": str(os.getenv("NOPSCADLIB_SHOW_THREADS")) }
     options_fname = dir + '/options.json'
     try:
         with open(options_fname) as json_file:

scripts/panels.py

@@ -25,9 +25,15 @@ import sys
 
 from plateup import plateup
 
+def usage():
+    print("\nusage:\n\tpanels [target_config] - Aggregate DXF files for routing together.")
+    sys.exit(1)
+
 if __name__ == '__main__':
+    if len(sys.argv) > 2: usage()
+
     if len(sys.argv) > 1:
         target = sys.argv[1]
     else:
         target = None
-    plateup(target, 'dxf')
+    plateup(target, 'dxf', usage)

scripts/plateup.py

@@ -31,11 +31,11 @@ from shutil import copyfile
 source_dirs = { "stl" : "platters", "dxf" : "panels" }
 target_dirs = { "stl" : "printed",  "dxf" : "routed" }
 
-def plateup(target, part_type):
+def plateup(target, part_type, usage = None):
     #
     # Make the target directory
     #
-    top_dir = set_config(target)
+    top_dir = set_config(target, usage)
     parts_dir = top_dir + part_type + 's'
     target_dir = parts_dir + '/' + target_dirs[part_type]
     source_dir = top_dir + source_dirs[part_type]

scripts/platters.py

@@ -25,9 +25,15 @@ import sys
 
 from plateup import plateup
 
+def usage():
+    print("\nusage:\n\tplatters [target_config] - Aggregate STL files for printing together.")
+    sys.exit(1)
+
 if __name__ == '__main__':
+   if len(sys.argv) > 2: usage()
+
     if len(sys.argv) > 1:
         target = sys.argv[1]
     else:
         target = None
-    plateup(target, 'stl')
+    plateup(target, 'stl', usage)

scripts/readme.md

@@ -5,7 +5,7 @@ These are located in the ```scripts``` subdirectory, which needs to be added to
 They should work with both Python 2 and Python 3.
 
 | Script  | Function  |
-|:--|:--|
+|:---|:---|
 | ```bom.py``` | Generates BOM files for the project. |
 | ```c14n_stl.py``` | OpenSCAD produces randomly ordered STL files. This script re-orders them consistently so that GIT can tell if they have changed or not. |
 | ```doc_scripts.py``` | Makes this document and doc/usage.md. |

scripts/render.py

@@ -30,17 +30,23 @@ from tests import do_cmd, update_image, colour_scheme, background
 from deps import mtime
 from colorama import init
 
+def usage():
+    print("\nusage:\n\trender [target_config] - Render images of the stl and dxf files.");
+    sys.exit(1)
+
 def render(target, type):
     #
     # Make the target directory
     #
-    target_dir = set_config(target) + type + 's'
+    top_dir = set_config(target, usage)
+    target_dir = top_dir + type + 's'
+    bom_dir = top_dir + 'bom'
     if not os.path.isdir(target_dir):
         os.makedirs(target_dir)
     #
     # Find all the parts
     #
-    parts = bom_to_parts(target_dir, type)
+    parts = bom_to_parts(bom_dir, type)
     #
     # Remove unused png files
     #
@@ -59,7 +65,7 @@ def render(target, type):
         if mtime(part_file) > mtime(png_name):
             png_maker_name = "png.scad"
             with open(png_maker_name, "w") as f:
-                f.write('color("lime") import("%s");\n' % part_file)
+                f.write('color([0, 146/255, 0]) import("%s");\n' % part_file)
             cam = "--camera=0,0,0,70,0,315,500" if type == 'stl' else "--camera=0,0,0,0,0,0,500"
             render = "--preview" if type == 'stl' else "--render"
             tmp_name = 'tmp.png'
@@ -71,6 +77,7 @@ def render(target, type):
 
 if __name__ == '__main__':
     init()
+    if len(sys.argv) > 2: usage()
     target =  sys.argv[1] if len(sys.argv) > 1 else None
     render(target, 'stl')
     render(target, 'dxf')

scripts/set_config.py

@@ -45,20 +45,27 @@ def valid_targets_string():
     return result
 
 
-def set_config(target):
+def set_config(target, usage = None):
+    if target and target[:1] == '-' and usage: usage()
     targets = valid_targets()
     if not target:
         if not targets:
             return ""
         print("Must specify a configuration: " + valid_targets_string())
+        if usage:
+            usage()
         sys.exit(1)
 
     if not targets:
         print("Not a muli-configuration project (no config_<target>.scad files found)")
+        if usage:
+            usage()
         sys.exit(1)
 
     if not target in targets:
         print(target + " is not a configuration, avaliable configurations are: " + valid_targets_string())
+        if usage:
+            usage()
         sys.exit(1)
 
     fname = source_dir + "/target.scad"
@@ -75,10 +82,13 @@ def set_config(target):
             f. write(text);
     return target + "/"
 
+def usage():
+        print("\nusage:\n\tset_config config_name")
+        sys.exit(1)
+
 if __name__ == '__main__':
     args = len(sys.argv)
     if args == 2:
-       set_config(sys.argv[1])
+       set_config(sys.argv[1], usage)
     else:
-        print("usage: set_config config_name")
-        sys.exit(1)
+        usage()

scripts/tests.py

@@ -85,6 +85,10 @@ def depluralise(name):
 def is_plural(name):
     return name != depluralise(name)
 
+def usage():
+    print("\nusage:\n\ttests [test_name1] ... [test_nameN] - Run specified tests or all tests in none specified.");
+    sys.exit(1)
+
 def tests(tests):
     scad_dir = "tests"
     deps_dir = scad_dir + "/deps"
@@ -96,6 +100,7 @@ def tests(tests):
     doc_name = "readme.md"
     index = {}
     bodies = {}
+    done = []
     times.read_times()
     options.check_options(deps_dir)
     #
@@ -109,13 +114,15 @@ def tests(tests):
     #
     # List of individual part files
     #
-    scads = [i for i in sorted(os.listdir(scad_dir)) if i[-5:] == ".scad"]
+    scads = [i for i in sorted(os.listdir(scad_dir), key = lambda s: s.lower()) if i[-5:] == ".scad"]
 
     for scad in scads:
         base_name = scad[:-5]
         if not tests or base_name in tests:
+            done.append(base_name)
             print(base_name)
             cap_name = base_name[0].capitalize() + base_name[1:]
+            base_name = base_name.lower()
             scad_name = scad_dir + '/' + scad
             png_name = png_dir + '/' + base_name + '.png'
             bom_name = bom_dir + '/' + base_name + '.json'
@@ -140,11 +147,14 @@ def tests(tests):
                 print("Can't find implementation!")
                 continue
 
-            vsplit = "M"
+            vsplit = "AKR" + chr(ord('Z') + 1)
             vtype = locations[0][1]
-            types = [vtype + ' A-' + vsplit[0], vtype + ' ' + chr(ord(vsplit) + 1) + '-Z'] + [loc[1] for loc in locations[1 :]]
+            types = [vtype + ' ' + vsplit[i] + '-'  + chr(ord(vsplit[i + 1]) - 1) for i in range(len(vsplit) - 1)] + [loc[1] for loc in locations[1 :]]
             if type == vtype:
-                type = types[0] if cap_name[0] <= vsplit else types[1]
+                for i in range(1, len(vsplit)):
+                    if cap_name[0] < vsplit[i]:
+                         type = types[i - 1]
+                         break
 
             for t in types:
                 if not t in bodies:
@@ -188,10 +198,10 @@ def tests(tests):
 
             body += ["![%s](%s)\n" %(base_name, png_name)]
 
-            dname = deps_name(deps_dir, scad)
+            dname = deps_name(deps_dir, scad.lower())
             oldest = png_name if mtime(png_name) < mtime(bom_name) else bom_name
             changed = check_deps(oldest, dname)
-            changed = times.check_have_time(changed, scad_name)
+            changed = times.check_have_time(changed, scad_name.lower())
             changed = options.have_changed(changed, oldest)
             if changed:
                 print(changed)
@@ -230,6 +240,14 @@ def tests(tests):
             body += ['\n<a href="#top">Top</a>']
             body += ["\n---"]
 
+    for test in done:
+        if test in tests:
+            tests.remove(test)
+    if tests:
+        for test in tests:
+            print(Fore.MAGENTA + "Could not find a test called", test, Fore.WHITE)
+        usage()
+
     with open(doc_name, "wt") as doc_file:
         print('# NopSCADlib', file = doc_file)
         print('''\
@@ -275,4 +293,6 @@ See [usage](docs/usage.md) for requirements, installation instructions and a usa
     do_cmd('codespell -L od readme.md'.split())
 
 if __name__ == '__main__':
+    for arg in sys.argv[1:]:
+        if arg[:1] == '-': usage()
     tests(sys.argv[1:])

scripts/views.py

@@ -71,9 +71,10 @@ def bom_to_assemblies(bom_dir, bounds_map):
     #
     # Remove the main assembly if it is a shell
     #
-    ass =  flat_bom[-1]
-    if len(ass["assemblies"]) < 2 and not ass["vitamins"] and not ass["printed"] and not ass["routed"]:
-        flat_bom = flat_bom[:-1]
+    if flat_bom:
+        ass =  flat_bom[-1]
+        if len(ass["assemblies"]) < 2 and not ass["vitamins"] and not ass["printed"] and not ass["routed"]:
+            flat_bom = flat_bom[:-1]
     return [assembly["name"] for  assembly in flat_bom]
 
 def eop(print_mode, doc_file, last = False, first = False):
@@ -88,12 +89,24 @@ def eop(print_mode, doc_file, last = False, first = False):
 def pad(s, before, after = 0):
     return '&nbsp;' * before + str(s) + '&nbsp;' * after
 
+def titalise(name):
+    cap_next = True
+    result = ''
+    for c in name.replace('_', ' '):
+        result = result + (c.upper() if cap_next else c);
+        cap_next = c == ' '
+    return result
+
+def usage():
+    print("\nusage:\n\t views [target_config] [<name1>_assembly] ... [<nameN>_assembly] - Create assembly images and readme.")
+    sys.exit(1)
+
 def views(target, do_assemblies = None):
     done_assemblies = []
     #
     # Make the target directory
     #
-    top_dir = set_config(target)
+    top_dir = set_config(target, usage)
     target_dir = top_dir + 'assemblies'
     deps_dir = top_dir + "deps"
     bom_dir = top_dir + "bom"
@@ -108,9 +121,10 @@ def views(target, do_assemblies = None):
     with open(bounds_fname) as json_file:
         bounds_map = json.load(json_file)
     #
-    # Find all the assemblies
+    # Find all the assemblies and remove any old views
     #
     assemblies = bom_to_assemblies(bom_dir, bounds_map)
+    lc_assemblies = [ass.lower() for ass in assemblies]
     for file in os.listdir(target_dir):
         if file.endswith('.png'):
             assembly = file[:-4].replace('_assembled', '_assembly')
@@ -123,67 +137,69 @@ def views(target, do_assemblies = None):
     # Find all the scad files
     #
     main_blurb = None
-    lib_dir = os.environ['OPENSCADPATH'] + '/NopSCADlib/printed'
-    for dir in [source_dir, lib_dir]:
-        for filename in os.listdir(dir):
-            if filename.endswith('.scad'):
-                #
-                # find any modules with names ending in _assembly
-                #
-                with open(dir + "/" + filename, "r") as f:
-                    lines = f.readlines()
-                line_no = 0
-                for line in lines:
-                    words = line.split()
-                    if len(words) and words[0] == "module":
-                        module = words[1].split('(')[0]
-                        if is_assembly(module):
-                            if module in assemblies:
-                                #
-                                # Scrape the assembly instructions
-                                #
-                                for ass in flat_bom:
-                                    if ass["name"] == module:
-                                        if not "blurb" in ass:
-                                            ass["blurb"] = blurb.scrape_module_blurb(lines[:line_no])
-                                        break
-                                if not do_assemblies or module in do_assemblies:
+    for dir in source_dirs(bom_dir):
+        if os.path.isdir(dir):
+            for filename in os.listdir(dir):
+                if filename.endswith('.scad'):
+                    #
+                    # find any modules with names ending in _assembly
+                    #
+                    with open(dir + "/" + filename, "r") as f:
+                        lines = f.readlines()
+                    line_no = 0
+                    for line in lines:
+                        words = line.split()
+                        if len(words) and words[0] == "module":
+                            module = words[1].split('(')[0]
+                            if is_assembly(module):
+                                lc_module = module.lower()
+                                if lc_module in lc_assemblies:
+                                    real_name = assemblies[lc_assemblies.index(lc_module)]
                                     #
-                                    # make a file to use the module
+                                    # Scrape the assembly instructions
                                     #
-                                    png_maker_name = 'png.scad'
-                                    with open(png_maker_name, "w") as f:
-                                        f.write("use <%s/%s>\n" % (dir, filename))
-                                        f.write("%s();\n" % module);
-                                    #
-                                    # Run openscad on the created file
-                                    #
-                                    dname = deps_name(deps_dir, filename)
-                                    for explode in [0, 1]:
-                                        png_name = target_dir + '/' + module + '.png'
-                                        if not explode:
-                                            png_name = png_name.replace('_assembly', '_assembled')
-                                        changed = check_deps(png_name, dname)
-                                        changed = times.check_have_time(changed, png_name)
-                                        changed = options.have_changed(changed, png_name)
-                                        tmp_name = 'tmp.png'
-                                        if changed:
-                                            print(changed)
-                                            t = time.time()
-                                            openscad.run_list(options.list() + ["-D$pose=1", "-D$explode=%d" % explode, colour_scheme, "--projection=p", "--imgsize=4096,4096", "--autocenter", "--viewall", "-d", dname, "-o", tmp_name, png_maker_name]);
-                                            times.add_time(png_name, t)
-                                            do_cmd(["magick", tmp_name, "-trim", "-resize", "1004x1004", "-bordercolor", background, "-border", "10", tmp_name])
-                                            update_image(tmp_name, png_name)
-                                        tn_name = png_name.replace('.png', '_tn.png')
-                                        if mtime(png_name) > mtime(tn_name):
-                                            do_cmd(("magick "+ png_name + " -trim -resize 280x280 -background " + background + " -gravity Center -extent 280x280 -bordercolor " + background + " -border 10 " + tmp_name).split())
-                                            update_image(tmp_name, tn_name)
-                                    os.remove(png_maker_name)
-                                done_assemblies.append(module)
-                            else:
-                                if module == 'main_assembly':
-                                    main_blurb = blurb.scrape_module_blurb(lines[:line_no])
-                    line_no += 1
+                                    for ass in flat_bom:
+                                        if ass["name"] == real_name:
+                                            if not "blurb" in ass:
+                                                ass["blurb"] = blurb.scrape_module_blurb(lines[:line_no])
+                                            break
+                                    if not do_assemblies or real_name in do_assemblies:
+                                        #
+                                        # Run openscad on the created file
+                                        #
+                                        dname = deps_name(deps_dir, filename)
+                                        for explode in [0, 1]:
+                                            png_name = target_dir + '/' + real_name + '.png'
+                                            if not explode:
+                                                png_name = png_name.replace('_assembly', '_assembled')
+                                            changed = check_deps(png_name, dname)
+                                            changed = times.check_have_time(changed, png_name)
+                                            changed = options.have_changed(changed, png_name)
+                                            tmp_name = 'tmp.png'
+                                            if changed:
+                                                print(changed)
+                                                #
+                                                # make a file to use the module
+                                                #
+                                                png_maker_name = 'png.scad'
+                                                with open(png_maker_name, "w") as f:
+                                                    f.write("use <%s/%s>\n" % (dir, filename))
+                                                    f.write("%s();\n" % module);
+                                                t = time.time()
+                                                openscad.run_list(options.list() + ["-D$pose=1", "-D$explode=%d" % explode, colour_scheme, "--projection=p", "--imgsize=4096,4096", "--autocenter", "--viewall", "-d", dname, "-o", tmp_name, png_maker_name]);
+                                                times.add_time(png_name, t)
+                                                do_cmd(["magick", tmp_name, "-trim", "-resize", "1004x1004", "-bordercolor", background, "-border", "10", tmp_name])
+                                                update_image(tmp_name, png_name)
+                                                os.remove(png_maker_name)
+                                            tn_name = png_name.replace('.png', '_tn.png')
+                                            if mtime(png_name) > mtime(tn_name):
+                                                do_cmd(("magick "+ png_name + " -trim -resize 280x280 -background " + background + " -gravity Center -extent 280x280 -bordercolor " + background + " -border 10 " + tmp_name).split())
+                                                update_image(tmp_name, tn_name)
+                                    done_assemblies.append(real_name)
+                                else:
+                                    if module == 'main_assembly':
+                                        main_blurb = blurb.scrape_module_blurb(lines[:line_no])
+                        line_no += 1
     times.print_times()
     #
     # Build the document
@@ -214,7 +230,7 @@ def views(target, do_assemblies = None):
             print('1. [Parts list](#Parts_list)', file = doc_file)
             for ass in flat_bom:
                 name =  ass["name"]
-                cap_name = name.replace('_', ' ').title()
+                cap_name = titalise(name)
                 print('1. [%s](#%s)' % (cap_name, name), file = doc_file)
             print(file = doc_file)
             eop(print_mode, doc_file)
@@ -235,11 +251,11 @@ def views(target, do_assemblies = None):
                         else:
                             things[t][thing] = ass[t][thing]
             for ass in flat_bom:
-                name = ass["name"][:-9].replace('_', ' ').title().replace(' ','&nbsp;')
+                name = titalise(ass["name"][:-9]).replace(' ','&nbsp;')
                 print('| <span style="writing-mode: vertical-rl; text-orientation: mixed;">%s</span> ' % name, file = doc_file, end = '')
             print('| <span style="writing-mode: vertical-rl; text-orientation: mixed;">TOTALS</span> |  |', file = doc_file)
 
-            print(('|--:' * len(flat_bom) + '|--:|:--|'), file = doc_file)
+            print(('|---:' * len(flat_bom) + '|---:|:---|'), file = doc_file)
 
             for t in types:
                 if things[t]:
@@ -272,7 +288,7 @@ def views(target, do_assemblies = None):
             #
             for ass in flat_bom:
                 name = ass["name"]
-                cap_name = name.replace('_', ' ').title()
+                cap_name = titalise(name)
 
                 if ass["count"] > 1:
                     print('<a name="%s"></a>\n## %d x %s' % (name, ass["count"], cap_name), file = doc_file)
@@ -282,7 +298,7 @@ def views(target, do_assemblies = None):
                 if vitamins:
                     print("### Vitamins",         file = doc_file)
                     print("|Qty|Description|",    file = doc_file)
-                    print("|--:|:----------|",    file = doc_file)
+                    print("|---:|:----------|",    file = doc_file)
                     for v in sorted(vitamins, key = lambda s: s.split(":")[-1]):
                         print("|%d|%s|" % (vitamins[v], v.split(":")[1]),     file = doc_file)
                     print("\n", file = doc_file)
@@ -296,7 +312,7 @@ def views(target, do_assemblies = None):
                         print('%s %d x %s |' % ('\n|' if not (i % 3) else '', printed[p], p), file = doc_file, end = '')
                         if (i % 3) == 2 or i == len(printed) - 1:
                             n = (i % 3) + 1
-                            print('\n|%s' % ('--|' * n), file =  doc_file)
+                            print('\n|%s' % ('---|' * n), file =  doc_file)
                             for j in range(n):
                                 part = keys[i - n + j + 1]
                                 print('| ![%s](stls/%s) %s' % (part, part.replace('.stl','.png'), '|\n' if j == j - 1 else ''), end = '', file = doc_file)
@@ -312,7 +328,7 @@ def views(target, do_assemblies = None):
                         print('%s %d x %s |' % ('\n|' if not (i % 3) else '', routed[r], r), file = doc_file, end = '')
                         if (i % 3) == 2 or i == len(routed) - 1:
                             n = (i % 3) + 1
-                            print('\n|%s' % ('--|' * n), file =  doc_file)
+                            print('\n|%s' % ('---|' * n), file =  doc_file)
                             for j in range(n):
                                 part = keys[i - n + j + 1]
                                 print('| ![%s](dxfs/%s) %s' % (part, part.replace('.dxf','.png'), '|\n' if j == j - 1 else ''), end = '', file = doc_file)
@@ -328,7 +344,7 @@ def views(target, do_assemblies = None):
                         print('%s %d x %s |' % ('\n|' if not (i % 3) else '', sub_assemblies[a], a), file = doc_file, end = '')
                         if (i % 3) == 2 or i == len(keys) - 1:
                             n = (i % 3) + 1
-                            print('\n|%s' % ('--|' * n), file =  doc_file)
+                            print('\n|%s' % ('---|' * n), file =  doc_file)
                             for j in range(n):
                                 a = keys[i - n + j + 1].replace('_assembly', '_assembled')
                                 print('| ![%s](assemblies/%s) %s' % (a, a + '_tn.png', '|\n' if j == j - 1 else ''), end = '', file = doc_file)
@@ -383,4 +399,7 @@ if __name__ == '__main__':
     else:
         target, assemblies = None, sys.argv[1:]
 
+    for a in assemblies:
+        if a[-9:] != "_assembly": usage()
+
     views(target, assemblies)

tests/BOM.scad

@@ -21,9 +21,8 @@
 //! BOM and assembly demonstration
 //
 include <../core.scad>
-include <../vitamins/screws.scad>
-include <../vitamins/inserts.scad>
 include <../vitamins/sheets.scad>
+use <../vitamins/insert.scad>
 $explode = 1; // Normally set on the command line when generating assembly views with views.py
 
 screw = M3_cap_screw;

tests/IECs.scad

@@ -17,10 +17,10 @@
 // If not, see <https://www.gnu.org/licenses/>.
 //
 include <../core.scad>
-use <../utils/layout.scad>
-
 include <../vitamins/iecs.scad>
 
+use <../utils/layout.scad>
+
 module iecs()
     layout([for(i = iecs) iec_flange_h(i)], 10)
         rotate(90)

tests/KP_pillow_blocks.scad

@@ -0,0 +1,33 @@
+//
+// NopSCADlib Copyright Chris Palmer 2018
+// nop.head@gmail.com
+// hydraraptor.blogspot.com
+//
+// This file is part of NopSCADlib.
+//
+// NopSCADlib is free software: you can redistribute it and/or modify it under the terms of the
+// GNU General Public License as published by the Free Software Foundation, either version 3 of
+// the License, or (at your option) any later version.
+//
+// NopSCADlib is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+// without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+// See the GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along with NopSCADlib.
+// If not, see <https://www.gnu.org/licenses/>.
+//
+include <../core.scad>
+include <../vitamins/kp_pillow_blocks.scad>
+
+use <../utils/layout.scad>
+
+module kp_pillow_blocks() {
+    screws = [M4_cap_screw, M4_cap_screw, M5_cap_screw, M5_cap_screw];
+    nuts = [M4_sliding_t_nut, M4_hammer_nut, M5_sliding_t_nut, M5_nut];
+    assert(len(screws) == len(kp_pillow_blocks) && len(nuts) == len(kp_pillow_blocks));
+    layout([for(k = kp_pillow_blocks) 2 * kp_size(k)[1]])
+        kp_pillow_block_assembly(kp_pillow_blocks[$i], screw_type = screws[$i], nut_type = nuts[$i]);
+}
+
+if($preview)
+    kp_pillow_blocks();

tests/LEDs.scad

@@ -16,7 +16,7 @@
 // You should have received a copy of the GNU General Public License along with NopSCADlib.
 // If not, see <https://www.gnu.org/licenses/>.
 //
-include <../core.scad>
+include <../utils/core/core.scad>
 use <../utils/layout.scad>
 
 include <../vitamins/leds.scad>

tests/PCB.scad

@@ -0,0 +1,109 @@
+//
+// NopSCADlib Copyright Chris Palmer 2020
+// nop.head@gmail.com
+// hydraraptor.blogspot.com
+//
+// This file is part of NopSCADlib.
+//
+// NopSCADlib is free software: you can redistribute it and/or modify it under the terms of the
+// GNU General Public License as published by the Free Software Foundation, either version 3 of
+// the License, or (at your option) any later version.
+//
+// NopSCADlib is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+// without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+// See the GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along with NopSCADlib.
+// If not, see <https://www.gnu.org/licenses/>.
+//
+include <../core.scad>
+include <../vitamins/microswitches.scad>
+include <../vitamins/d_connectors.scad>
+
+use <../vitamins/pcb.scad>
+
+gt_5x17 = ["gt_5x17",    5,   10,   17, 5,   11, 0.4,  9,   2,1.5,     1,  3,   6,     0,  0,   0];
+gt_5x11 = ["gt_5x11",    5,    8,   11, 5,    7, 0.4,  7,   1.5,1.5,   1,2.5,   6,     0,  0,   0];
+
+TMC2130HeatSinkColor = "DeepSkyBlue";
+TMC2130 = ["TMC2130", "TMC2130",
+    20, 14, 1.6, 0, 3, 0, "white", false, [],
+    [
+        [  10,  1,  0, "-2p54header", 8, 1 ,undef, "blue" ],
+        [  10, 13,  0, "-2p54header", 8, 1],
+        [  12,  7,  0, "-chip", 6, 4, 1, grey20 ],
+        // mock up a heat sink
+        [  10,  7,  0, "block", 9, 9,  2, TMC2130HeatSinkColor ],
+        [  10, 11,  0, "block", 9, 1, 11, TMC2130HeatSinkColor ],
+        [  10,  9,  0, "block", 9, 1, 11, TMC2130HeatSinkColor ],
+        [  10,  7,  0, "block", 9, 1, 11, TMC2130HeatSinkColor ],
+        [  10,  5,  0, "block", 9, 1, 11, TMC2130HeatSinkColor ],
+        [  10,  3,  0, "block", 9, 1, 11, TMC2130HeatSinkColor ],
+    ],
+    []
+];
+
+test_pcb = ["TestPCB", "Test PCB",
+    50, 500, 1.6, // length, width, thickness
+    3,      // Corner radius
+    2.75,   // Mounting hole diameter
+    6,      // Pad around mounting hole
+    "green",// Color
+    false,  // True if the parts should be separate BOM items
+    // hole offsets
+    [ [3, 3], [3, -3], [-3, 3], [-3, -3] ],
+    // components
+    [
+        [ 10,  10,   0, "2p54header", 4, 1],
+        [ 25,  10,   0, "2p54header", 5, 1, undef, "blue" ],
+        [ 10,  20,   0, "2p54boxhdr", 4, 2],
+        [ 10,  30,   0, "2p54socket", 6, 1],
+        [ 25,  30,   0, "2p54socket", 4, 1, undef, undef, undef, "red" ],
+        [ 10,  40,   0, "chip", 10, 5, 1, grey20],
+        [ 10,  60, 180, "rj45"],
+        [  8,  80, 180, "usb_A"],
+        [  8, 100, 180, "usb_Ax2"],
+        [  3, 120, 180, "usb_uA"],
+        [  8, 140, 180, "usb_B"],
+        [ 10, 160,   0, "buzzer"],
+        [ 25, 160,   0, "buzzer", 4.5, 8.5],
+        [ 10, 175,   0, "potentiometer"],
+        [ 30, 175,   0, "potentiometer", 7, 8],
+        [  8, 190, 180, "jack"],
+        [  6, 200, 180, "barrel_jack"],
+        [  5, 220, 180, "hdmi"],
+        [  3, 240, 180, "mini_hdmi"],
+        [ 10, 250,   0, "flex"],
+        [ 10, 265,   0, "flat_flex"],
+        [ 10, 280,   0, "D_plug", DCONN9],
+        [ 10, 300,   0, "molex_hdr", 2],
+        [ 10, 310,   0, "jst_xh", 2],
+        [ 10, 320, 180, "term254", 3],
+        [ 20, 320, 180, "term254", 3, undef, grey20],
+        [ 10, 340, 180, "gterm35", 4, [1,2]],
+        [ 20, 340, 180, "gterm35", 4, [1,2], "red"],
+        [ 30, 340, 180, "gterm", gt_5x11, 3],
+        [ 10, 360, 180, "gterm635", 2],
+        [ 25, 360, 180, "gterm635", 2, undef, "blue"],
+        [ 40, 360, 180, "gterm", gt_5x17, 2, undef, grey20],
+        [ 40, 340, 180, "gterm", gt_5x17, 3, [1], "red"],
+        [ 10, 380, 180, "term35", 4],
+        [ 20, 380, 180, "term35", 3, "lime"],
+        [ 10, 400,   0, "transition", 5],
+        [ 10, 410,   0, "block", 10, 5, 8, "orange"],
+        [ 10, 420,   0, "button_6mm"],
+        [ 10, 435,   0, "microswitch", small_microswitch],
+        [ 12, 450,   0, "pcb", 11, TMC2130 ],
+        [ 12, 456,   0, "2p54socket", 8, 1 ],
+        [ 12, 444,   0, "2p54socket", 8, 1, undef, undef, undef, "red" ],
+        [ 10, 470,   0, "standoff",  5, 4.5, 12.5, 2.54],
+        [  6, 480, 180, "uSD", [12, 11.5, 1.4]],
+    ],
+    // accessories
+    []
+];
+
+
+if($preview)
+    let($show_threads = true)
+        pcb(test_pcb);

tests/PCB_mount.scad

@@ -16,7 +16,7 @@
 // You should have received a copy of the GNU General Public License along with NopSCADlib.
 // If not, see <https://www.gnu.org/licenses/>.
 //
-include <../core.scad>
+include <../utils/core/core.scad>
 use <../printed/pcb_mount.scad>
 
 PI_IO = ["PI_IO", "PI_IO V2",       35.56, 25.4, 1.6, 0,    0,   0, "green", true, [],

tests/PCBs.scad

@@ -17,11 +17,10 @@
 // If not, see <https://www.gnu.org/licenses/>.
 //
 include <../core.scad>
-use <../utils/layout.scad>
-
-include <../vitamins/d_connectors.scad>
 include <../vitamins/pcbs.scad>
 
+use <../utils/layout.scad>
+
 module pcbs()
     layout([for(p = pcbs) pcb_width(p)], 10)
         translate([0, pcb_length(pcbs[$i]) / 2])

tests/PSU_shroud.scad

@@ -17,10 +17,9 @@
 // If not, see <https://www.gnu.org/licenses/>.
 //
 include <../core.scad>
-use <../utils/layout.scad>
-
-include <../vitamins/screws.scad>
 include <../vitamins/psus.scad>
+
+use <../utils/layout.scad>
 use <../printed/psu_shroud.scad>
 
 thickness = 3;

tests/PSUs.scad

@@ -17,11 +17,10 @@
 // If not, see <https://www.gnu.org/licenses/>.
 //
 include <../core.scad>
-use <../utils/layout.scad>
-
-include <../vitamins/screws.scad>
 include <../vitamins/psus.scad>
 
+use <../utils/layout.scad>
+
 module psus()
     layout([for(p = psus) psu_width(p)], 10) let(p = psus[$i])
     rotate(atx_psu(p) ? 0 : 90) {

tests/SCS_bearing_blocks.scad

@@ -17,12 +17,12 @@
 // If not, see <https://www.gnu.org/licenses/>.
 //
 include <../core.scad>
-use <../utils/layout.scad>
-
 include <../vitamins/scs_bearing_blocks.scad>
 
+use <../utils/layout.scad>
+
 module scs_bearing_blocks()
-    layout([for(s = scs_bearing_blocks) 2 * scs_size(s)[0]]) {
+    layout([for(s = scs_bearing_blocks) scs_size(s).x], 10) {
         part_thickness = 5;
         scs_bearing_block_assembly(scs_bearing_blocks[$i], part_thickness);
 

tests/SK_brackets.scad

@@ -0,0 +1,39 @@
+//
+// NopSCADlib Copyright Chris Palmer 2018
+// nop.head@gmail.com
+// hydraraptor.blogspot.com
+//
+// This file is part of NopSCADlib.
+//
+// NopSCADlib is free software: you can redistribute it and/or modify it under the terms of the
+// GNU General Public License as published by the Free Software Foundation, either version 3 of
+// the License, or (at your option) any later version.
+//
+// NopSCADlib is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+// without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+// See the GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along with NopSCADlib.
+// If not, see <https://www.gnu.org/licenses/>.
+//
+include <../core.scad>
+include <../vitamins/sk_brackets.scad>
+include <../vitamins/extrusions.scad>
+
+use <../utils/layout.scad>
+
+module sk_brackets() {
+    screws = [M4_dome_screw, M4_cap_screw, M5_cap_screw, M5_cap_screw];
+    nuts = [M4_hammer_nut, M4_sliding_t_nut, M5_sliding_t_nut, undef];
+    // channel depth = 6 for 2020 extrusion, 9 for 3030 extrusion
+    depths = [6, 6, 9, 0];
+    layout([for(s = sk_brackets) 1.5 * sk_size(s)[1]]) {
+        sk_bracket_assembly(sk_brackets[$i], screw_type = screws[$i], nut_type = nuts[$i], max_screw_depth = depths[$i]);
+        translate([0, -sk_hole_offset(sk_brackets[$i]) - extrusion_width($i < 2 ? E2020 : E3030) / 2, 0])
+            rotate([0, 90, 0])
+                extrusion($i < 2 ? E2020 : E3030, 20, false);
+    }
+}
+
+if($preview)
+    sk_brackets();

tests/SSR_shroud.scad

@@ -17,10 +17,9 @@
 // If not, see <https://www.gnu.org/licenses/>.
 //
 include <../core.scad>
-use <../utils/layout.scad>
-
-include <../vitamins/screws.scad>
 include <../vitamins/ssrs.scad>
+
+use <../utils/layout.scad>
 use <../printed/ssr_shroud.scad>
 
 thickness = 3;

tests/SSRs.scad

@@ -17,11 +17,10 @@
 // If not, see <https://www.gnu.org/licenses/>.
 //
 include <../core.scad>
-use <../utils/layout.scad>
-
-include <../vitamins/screws.scad>
 include <../vitamins/ssrs.scad>
 
+use <../utils/layout.scad>
+
 module ssrs()
     layout([for(s = ssrs) ssr_width(s)], 15)
         rotate(90)

tests/annotation.scad

@@ -16,7 +16,7 @@
 // You should have received a copy of the GNU General Public License along with NopSCADlib.
 // If not, see <https://www.gnu.org/licenses/>.
 //
-include <../core.scad>
+include <../utils/core/core.scad>
 use <../utils/annotation.scad>
 
 module annotations() {

tests/batteries.scad

@@ -16,10 +16,9 @@
 // You should have received a copy of the GNU General Public License along with NopSCADlib.
 // If not, see <https://www.gnu.org/licenses/>.
 //
-include <../core.scad>
+include <../utils/core/core.scad>
 use <../utils/layout.scad>
 
-include <../vitamins/springs.scad>
 include <../vitamins/batteries.scad>
 
 module batteries()

tests/belts.scad

@@ -18,10 +18,8 @@
 //
 include <../core.scad>
 
-include <../vitamins/belts.scad>
-include <../vitamins/screws.scad>
-include <../vitamins/inserts.scad>
 include <../vitamins/pulleys.scad>
+use <../vitamins/insert.scad>
 use <../utils/layout.scad>
 
 module belt_test() {

tests/bezier.scad

@@ -16,7 +16,7 @@
 // You should have received a copy of the GNU General Public License along with NopSCADlib.
 // If not, see <https://www.gnu.org/licenses/>.
 //
-include <../core.scad>
+include <../utils/core/core.scad>
 use <../utils/bezier.scad>
 use <../utils/sweep.scad>
 use <../utils/annotation.scad>

tests/blowers.scad

@@ -19,7 +19,6 @@
 include <../core.scad>
 use <../utils/layout.scad>
 
-include <../vitamins/screws.scad>
 include <../vitamins/blowers.scad>
 
 module blowers()

tests/box.scad

@@ -18,9 +18,8 @@
 //
 include <../core.scad>
 
-include <../vitamins/screws.scad>
 include <../vitamins/sheets.scad>
-include <../vitamins/inserts.scad>
+use <../vitamins/insert.scad>
 
 use <../printed/box.scad>
 

tests/bulldogs.scad

@@ -16,7 +16,7 @@
 // You should have received a copy of the GNU General Public License along with NopSCADlib.
 // If not, see <https://www.gnu.org/licenses/>.
 //
-include <../core.scad>
+include <../utils/core/core.scad>
 use <../utils/layout.scad>
 
 include <../vitamins/bulldogs.scad>

tests/butt_box.scad

@@ -18,9 +18,8 @@
 //
 include <../core.scad>
 
-include <../vitamins/screws.scad>
 include <../vitamins/sheets.scad>
-include <../vitamins/inserts.scad>
+use <../vitamins/insert.scad>
 
 include <../printed/butt_box.scad>
 

tests/buttons.scad

@@ -16,7 +16,7 @@
 // You should have received a copy of the GNU General Public License along with NopSCADlib.
 // If not, see <https://www.gnu.org/licenses/>.
 //
-include <../core.scad>
+include <../utils/core/core.scad>
 use <../utils/layout.scad>
 
 include <../vitamins/buttons.scad>

tests/cable_grommets.scad

@@ -16,7 +16,7 @@
 // You should have received a copy of the GNU General Public License along with NopSCADlib.
 // If not, see <https://www.gnu.org/licenses/>.
 //
-include <../core.scad>
+include <../utils/core/core.scad>
 
 use <../printed/cable_grommets.scad>
 

tests/cable_strips.scad

@@ -16,7 +16,7 @@
 // You should have received a copy of the GNU General Public License along with NopSCADlib.
 // If not, see <https://www.gnu.org/licenses/>.
 //
-include <../core.scad>
+include <../utils/core/core.scad>
 
 use <../vitamins/cable_strip.scad>
 

tests/carriers.scad

@@ -16,7 +16,7 @@
 // You should have received a copy of the GNU General Public License along with NopSCADlib.
 // If not, see <https://www.gnu.org/licenses/>.
 //
-include <../core.scad>
+include <../utils/core/core.scad>
 use <../printed/carriers.scad>
 
 module carriers()

tests/clip.scad

@@ -17,7 +17,7 @@
 // If not, see <https://www.gnu.org/licenses/>.
 //
 
-include <../core.scad>
+include <../utils/core/core.scad>
 
 module clips() {
     clip(xmin = 0, ymin = 0, zmin = 0, zmax = 40) sphere(50);

tests/components.scad

@@ -19,7 +19,6 @@
 include <../core.scad>
 use <../utils/layout.scad>
 
-include <../vitamins/screws.scad>
 include <../vitamins/components.scad>
 
 module resistors()

tests/corner_block.scad

@@ -19,8 +19,6 @@
 include <../core.scad>
 use <../printed/corner_block.scad>
 
-include <../vitamins/screws.scad>
-
 screws = [M2_cap_screw, M2p5_pan_screw, M3_dome_screw, M4_dome_screw];
 
 module do_corner_block(screw)