Butt_box made more flexible with extra parameters.

Can split the fasteners between assemblies and omit the star washers.

core.scad

@@ -25,3 +25,15 @@ include <global_defs.scad>
 // Global functions and modules
 //
 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"));
+}

examples/MainsBreakOutBox/readme.md

@@ -31,6 +31,7 @@ Earth leakage can be measured Canadian CSA style by disconnected the neutral lin
 ## 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 |
 | &nbsp;&nbsp;.&nbsp; | &nbsp;&nbsp;.&nbsp; | &nbsp;&nbsp;.&nbsp; | &nbsp;&nbsp;2&nbsp; |  &nbsp;&nbsp;2&nbsp; | &nbsp;&nbsp; 4mm shielded jack socket green |
@@ -47,9 +48,11 @@ Earth leakage can be measured Canadian CSA style by disconnected the neutral lin
 | &nbsp;&nbsp;.&nbsp; | &nbsp;&nbsp;.&nbsp; | &nbsp;&nbsp;1&nbsp; | &nbsp;&nbsp;1&nbsp; |  &nbsp;&nbsp;2&nbsp; | &nbsp;&nbsp; Wire blue 30/0.25mm strands, length 150mm - not shown |
 | &nbsp;&nbsp;.&nbsp; | &nbsp;&nbsp;.&nbsp; | &nbsp;&nbsp;2&nbsp; | &nbsp;&nbsp;.&nbsp; |  &nbsp;&nbsp;2&nbsp; | &nbsp;&nbsp; Wire brown 30/0.25mm strands, length 150mm - not shown |
 | &nbsp;&nbsp;.&nbsp; | &nbsp;&nbsp;.&nbsp; | &nbsp;&nbsp;1&nbsp; | &nbsp;&nbsp;1&nbsp; |  &nbsp;&nbsp;2&nbsp; | &nbsp;&nbsp; Wire green & yellow 30/0.25mm strands, length 150mm - not shown |
-|  |  |  |  | | **3D Printed parts** |
-| &nbsp;&nbsp;.&nbsp; | &nbsp;&nbsp;4&nbsp; | &nbsp;&nbsp;.&nbsp; | &nbsp;&nbsp;.&nbsp; | &nbsp;&nbsp;4&nbsp; | &nbsp;&nbsp;&nbsp;foot.stl |
-| &nbsp;&nbsp;1&nbsp; | &nbsp;&nbsp;.&nbsp; | &nbsp;&nbsp;.&nbsp; | &nbsp;&nbsp;.&nbsp; | &nbsp;&nbsp;1&nbsp; | &nbsp;&nbsp;&nbsp;socket_box.stl |
+| &nbsp;&nbsp;2&nbsp; | &nbsp;&nbsp;16&nbsp; | &nbsp;&nbsp;14&nbsp; | &nbsp;&nbsp;18&nbsp; | &nbsp;&nbsp;50&nbsp; | &nbsp;&nbsp;Total vitamins count |
+|  |  |  |  | | **3D printed parts** |
+| &nbsp;&nbsp;.&nbsp; | &nbsp;&nbsp;4&nbsp; | &nbsp;&nbsp;.&nbsp; | &nbsp;&nbsp;.&nbsp; |  &nbsp;&nbsp;4&nbsp; | &nbsp;&nbsp;foot.stl |
+| &nbsp;&nbsp;1&nbsp; | &nbsp;&nbsp;.&nbsp; | &nbsp;&nbsp;.&nbsp; | &nbsp;&nbsp;.&nbsp; |  &nbsp;&nbsp;1&nbsp; | &nbsp;&nbsp;socket_box.stl |
+| &nbsp;&nbsp;1&nbsp; | &nbsp;&nbsp;4&nbsp; | &nbsp;&nbsp;.&nbsp; | &nbsp;&nbsp;.&nbsp; | &nbsp;&nbsp;5&nbsp; | &nbsp;&nbsp;Total 3D printed parts count |
 
 [Top](#TOP)
 
@@ -86,9 +89,9 @@ Earth leakage can be measured Canadian CSA style by disconnected the neutral lin
 ### Vitamins
 |Qty|Description|
 |--:|:----------|
-|8| Washer  M3 x 7mm x 0.5mm|
-|4| Screw M3 dome x 10mm|
 |4| Nut M3 x 2.4mm nyloc|
+|4| Screw M3 dome x 10mm|
+|8| Washer  M3 x 7mm x 0.5mm|
 
 
 ### 3D Printed parts
@@ -122,14 +125,14 @@ Earth leakage can be measured Canadian CSA style by disconnected the neutral lin
 ### Vitamins
 |Qty|Description|
 |--:|:----------|
-|1| Wire green & yellow 30/0.25mm strands, length 150mm - not shown|
-|1| Wire blue 30/0.25mm strands, length 150mm - not shown|
-|2| Wire brown 30/0.25mm strands, length 150mm - not shown|
 |3| Heatshrink sleeving ID 3.2mm x 15mm - not shown|
 |1| IEC inlet for ATX|
+|2| Nut M3 x 2.4mm nyloc|
 |2| Screw M3 cs cap x 12mm|
 |2| Washer  M3 x 7mm x 0.5mm|
-|2| Nut M3 x 2.4mm nyloc|
+|1| Wire blue 30/0.25mm strands, length 150mm - not shown|
+|2| Wire brown 30/0.25mm strands, length 150mm - not shown|
+|1| Wire green & yellow 30/0.25mm strands, length 150mm - not shown|
 
 
 ### Sub-assemblies
@@ -161,15 +164,15 @@ Earth leakage can be measured Canadian CSA style by disconnected the neutral lin
 ### Vitamins
 |Qty|Description|
 |--:|:----------|
-|1| Wire green & yellow 30/0.25mm strands, length 150mm - not shown|
-|1| Wire blue 30/0.25mm strands, length 150mm - not shown|
-|5| Heatshrink sleeving ID 3.2mm x 15mm - not shown|
-|3| Ferrule for 1.5mm^2 wire - not shown|
-|1| Mains socket 13A|
-|2| Screw M3 cs cap x 20mm|
 |2| 4mm shielded jack socket blue|
 |1| 4mm shielded jack socket brown|
 |2| 4mm shielded jack socket green|
+|3| Ferrule for 1.5mm^2 wire - not shown|
+|5| Heatshrink sleeving ID 3.2mm x 15mm - not shown|
+|1| Mains socket 13A|
+|2| Screw M3 cs cap x 20mm|
+|1| Wire blue 30/0.25mm strands, length 150mm - not shown|
+|1| Wire green & yellow 30/0.25mm strands, length 150mm - not shown|
 
 
 ### Sub-assemblies

lib.scad

@@ -60,6 +60,8 @@ 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>
 
 use <vitamins/jack.scad>
 use <vitamins/meter.scad>

libtest.scad

@@ -34,12 +34,14 @@ use <tests/d_connectors.scad>
 use <tests/displays.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/inserts.scad>
 use <tests/jack.scad>
 use <tests/leadnuts.scad>
 use <tests/leds.scad>
+use <tests/ldrs.scad>
 use <tests/light_strips.scad>
 use <tests/linear_bearings.scad>
 use <tests/meter.scad>
@@ -156,7 +158,7 @@ fans_y = displays_y + 100;
 transformers_y = fans_y + 120;
 psus_y = transformers_y + 190;
 
-translate([x0 + 20, inserts_y])
+translate([x0 + 30, inserts_y])
     inserts();
 
 translate([x0, inserts_y])
@@ -252,6 +254,9 @@ components_y = toggles_y + 40;
 translate([x2, leds_y])
     leds();
 
+translate([x2 + 40, leds_y])
+    ldrs();
+
 translate([x2 + 8, carriers_y])
     carriers();
 
@@ -296,6 +301,9 @@ steppers_y = batteries_y + 70;
 translate([x3, veroboard_y])
     veroboard_test();
 
+translate([x3 + 70, veroboard_y + 30])
+    geared_steppers();
+
 translate([x3, d_connectors_y])
     d_connectors();
 

printed/butt_box.scad

@@ -27,6 +27,10 @@
 //! A list specifies the internal dimensions, screw type, top, bottom and side sheet types and the block
 //! maximum spacing.
 //!
+//!  * An optional name can be specified to allow more then one box in a project.
+//!  * An optional list of fixing blocks to be omitted can be given.
+//!  * Star washers can be omitted by setting the 11th parameter to false.
+//!
 //! Uses [fixing blocks](#fixing_block) and [corner blocks](#corner_block).
 //
 
@@ -34,17 +38,20 @@ use <fixing_block.scad>
 use <corner_block.scad>
 use <../utils/maths.scad>
 
-function bbox_screw(type)     = type[0]; //! Screw type for corner blocks
-function bbox_sheets(type)    = type[1]; //! Sheet type for the sides
-function bbox_base_sheet(type)= type[2]; //! Sheet type for the base
-function bbox_top_sheet(type) = type[3]; //! Sheet type for the top
-function bbox_span(type)      = type[4]; //! Maximum span between fixing blocks
-function bbox_width(type)     = type[5]; //! Internal width
-function bbox_depth(type)     = type[6]; //! Internal depth
-function bbox_height(type)    = type[7]; //! Internal height
+function bbox_screw(type)      = type[0]; //! Screw type for corner blocks
+function bbox_sheets(type)     = type[1]; //! Sheet type for the sides
+function bbox_base_sheet(type) = type[2]; //! Sheet type for the base
+function bbox_top_sheet(type)  = type[3]; //! Sheet type for the top
+function bbox_span(type)       = type[4]; //! Maximum span between fixing blocks
+function bbox_width(type)      = type[5]; //! Internal width
+function bbox_depth(type)      = type[6]; //! Internal depth
+function bbox_height(type)     = type[7]; //! Internal height
+function bbox_name(type)       = type[8] ? type[8] : "bbox"; //! Optional name if there is more than one box in a project
+function bbox_skip_blocks(type)= type[9] ? type[9] : [];  //! List of fixing blocks to skip, used to allow a hinged panel for example
+function star_washers(type)    = type[10] ? type[10] : is_undef(type[10]); //! Set to false to remove star washers.
 
 module bbox_shelf_blank(type) { //! 2D template for a shelf
-    dxf("bbox_shelf");
+    dxf(str(bbox_name(type), "_shelf"));
 
     sheet_2D(bbox_sheets(type), bbox_width(type), bbox_depth(type), 1);
 }
@@ -60,18 +67,8 @@ function corner_block_positions(type) = let(
             y = [-1,-1,1,1][corner]
         ) translate([x * (width / 2), y * (depth / 2), z * height / 2]) *
           rotate([z > 0 ? 180 : 0, 0, corner * 90 + (z > 0 ? 90 : 0)])
-
     ];
 
-module corner_block_positions(type) {
-    bt = sheet_thickness(bbox_base_sheet(type));
-    tt = sheet_thickness(bbox_top_sheet(type));
-    for(p = corner_block_positions(type))
-        let($thickness = transform([0, 0, 0], p).z > 0 ? tt : bt)
-            multmatrix(p)
-                children();
-}
-
 function corner_holes(type) = [for(p = corner_block_positions(type), q = corner_block_holes(bbox_screw(type))) p * q];
 
 function fixing_block_positions(type) = let(
@@ -84,36 +81,28 @@ function fixing_block_positions(type) = let(
         dspans = floor(depth / span),
         dspan = depth / (dspans + 1),
         hspans = floor(height / span),
-        hspan = height / (hspans + 1)
+        hspan = height / (hspans + 1),
+        skips = bbox_skip_blocks(type)
     )
     [
         for(i = [0 : 1 : wspans - 1], y = [-1, 1], z = [-1, 1])
-            translate([(i - (wspans - 1) / 2) * wspan, y * depth / 2, z * height / 2]) *
-            rotate([0, z * 90 + 90, y * 90 + 90]),
+            if(!in(skips, [0, y, z]))
+                translate([(i - (wspans - 1) / 2) * wspan, y * depth / 2, z * height / 2]) *
+                rotate([0, z * 90 + 90, y * 90 + 90]),
 
         for(i = [0 : 1 : dspans - 1], x = [-1, 1], z = [-1, 1])
-            translate([x * width / 2, (i - (dspans - 1) / 2) * dspan, z * height / 2]) *
-            rotate([0, z * 90 + 90, x * 90]),
+            if(!in(skips, [x, 0, z]))
+                translate([x * width / 2, (i - (dspans - 1) / 2) * dspan, z * height / 2]) *
+                rotate([0, z * 90 + 90, x * 90]),
 
         for(i = [0 : 1 : hspans - 1], x = [-1, 1], y = [-1, 1])
-            translate([x * width / 2, y * depth / 2, (i - (hspans - 1) / 2) * hspan]) *
-            rotate([y > 0 ? 180 : 0, x * y * 90, 0]),
-
+            if(!in(skips, [x, y, 0]))
+                translate([x * width / 2, y * depth / 2, (i - (hspans - 1) / 2) * hspan]) *
+                rotate([y > 0 ? 180 : 0, x * y * 90, 0]),
     ];
 
 function side_holes(type) = [for(p = fixing_block_positions(type), q = fixing_block_holes(bbox_screw(type))) p * q];
 
-module fixing_block_positions(type) {
-    t = sheet_thickness(bbox_sheets(type));
-    bt = sheet_thickness(bbox_base_sheet(type));
-    tt = sheet_thickness(bbox_top_sheet(type));
-    h = bbox_height(type) / 2 - 1;
-    for(p = fixing_block_positions(type))
-        let(z = transform([0, 0, 0], p).z, $thickness = z > h ? tt : z < -h ? bt : t)
-            multmatrix(p)
-                children();
-}
-
 module drill_holes(type, t)
     for(list = [corner_holes(type), side_holes(type)], p = list)
         let(q = t * p)
@@ -122,7 +111,7 @@ module drill_holes(type, t)
                     drill(screw_clearance_radius(bbox_screw(type)), 0);
 
 module bbox_base_blank(type) { //! 2D template for the base
-    dxf("bbox_base");
+    dxf(str(bbox_name(type), "_base"));
 
     difference() {
         sheet_2D(bbox_base_sheet(type), bbox_width(type), bbox_depth(type), 1);
@@ -132,7 +121,7 @@ module bbox_base_blank(type) { //! 2D template for the base
 }
 
 module bbox_top_blank(type) { //! 2D template for the top
-    dxf("bbox_top");
+    dxf(str(bbox_name(type), "_top"));
 
     t = sheet_thickness(bbox_sheets(type));
 
@@ -144,36 +133,40 @@ module bbox_top_blank(type) { //! 2D template for the top
     }
 }
 
-module bbox_left_blank(type) { //! 2D template for the left side
-    dxf("bbox_left");
+function subst_sheet(type, sheet) =
+    let(s = bbox_sheets(type))
+        sheet ? assert(sheet_thickness(sheet) == sheet_thickness(s)) sheet : s;
+
+module bbox_left_blank(type, sheet = false) { //! 2D template for the left side
+    dxf(str(bbox_name(type), "_left"));
 
     t = sheet_thickness(bbox_sheets(type));
     bb = sheet_thickness(bbox_base_sheet(type));
 
     difference() {
         translate([-t / 2, -bb / 2])
-            sheet_2D(bbox_sheets(type), bbox_depth(type) + t, bbox_height(type) + bb);
+            sheet_2D(subst_sheet(type, sheet), bbox_depth(type) + t, bbox_height(type) + bb);
 
         drill_holes(type, rotate([0, 90, 90]) * translate([bbox_width(type) / 2, 0]));
     }
 }
 
-module bbox_right_blank(type) { //! 2D template for the right side
-    dxf("bbox_right");
+module bbox_right_blank(type, sheet = false) { //! 2D template for the right side
+    dxf(str(bbox_name(type), "_right"));
 
     t = sheet_thickness(bbox_sheets(type));
     bb = sheet_thickness(bbox_base_sheet(type));
 
     difference() {
         translate([t / 2, -bb / 2])
-            sheet_2D(bbox_sheets(type), bbox_depth(type) + t, bbox_height(type) + bb);
+            sheet_2D(subst_sheet(type, sheet), bbox_depth(type) + t, bbox_height(type) + bb);
 
-        drill_holes(type, rotate([0, -90, 90]) * translate([-bbox_width(type) / 2, 0]));
+        drill_holes(type, rotate([0, 90, 90]) * translate([-bbox_width(type) / 2, 0]));
     }
 }
 
-module bbox_front_blank(type) { //! 2D template for the front
-    dxf("bbox_front");
+module bbox_front_blank(type, sheet = false) { //! 2D template for the front
+    dxf(str(bbox_name(type), "_front"));
 
     t = sheet_thickness(bbox_sheets(type));
     bb = sheet_thickness(bbox_base_sheet(type));
@@ -181,23 +174,23 @@ module bbox_front_blank(type) { //! 2D template for the front
 
     difference() {
         translate([0, (bt - bb) / 2])
-            sheet_2D(bbox_sheets(type), bbox_width(type) + 2 * t, bbox_height(type) + bb + bt);
+            sheet_2D(subst_sheet(type, sheet), bbox_width(type) + 2 * t, bbox_height(type) + bb + bt);
 
         drill_holes(type, rotate([-90, 0, 0]) * translate([0, bbox_depth(type) / 2]));
     }
 }
 
-module bbox_back_blank(type) { //! 2D template for the back
-    dxf("bbox_back");
+module bbox_back_blank(type, sheet = false) { //! 2D template for the back
+    dxf(str(bbox_name(type), "_back"));
 
     bb = sheet_thickness(bbox_base_sheet(type));
     t = sheet_thickness(bbox_sheets(type));
 
     difference() {
         translate([0, -bb / 2])
-            sheet_2D(bbox_sheets(type), bbox_width(type), bbox_height(type) + bb);
+            sheet_2D(subst_sheet(type, sheet), bbox_width(type), bbox_height(type) + bb);
 
-        drill_holes(type, rotate([90, 0, 0]) * translate([0, -bbox_depth(type) / 2]));
+        drill_holes(type, rotate([-90, 0, 0]) * translate([0, -bbox_depth(type) / 2]));
     }
 }
 
@@ -208,8 +201,7 @@ module bbox_front(type) render_2D_sheet(bbox_sheets(type)) bbox_front_blank(type
 module bbox_left(type)  render_2D_sheet(bbox_sheets(type)) bbox_left_blank(type);       //! Default left side, can be overridden to customise
 module bbox_right(type) render_2D_sheet(bbox_sheets(type)) bbox_right_blank(type);      //! Default right side, can be overridden to customise
 
-module _bbox_assembly(type, top = true, base = true, left = true, right = true, back = true, front = true) //! The box assembly, wrap with a local copy without parameters
-assembly("bbox") {
+module _bbox_assembly(type, top = true, base = true, left = true, right = true, back = true, front = true) { //! The box assembly, wrap with a local copy without parameters
     width = bbox_width(type);
     depth = bbox_depth(type);
     height = bbox_height(type);
@@ -219,43 +211,54 @@ assembly("bbox") {
     bt = sheet_thickness(bbox_base_sheet(type));
     tt = sheet_thickness(bbox_top_sheet(type));
 
-    corner_block_positions(type)
-        fastened_corner_block_assembly(t, bbox_screw(type), $thickness);
+    function is_missing_screw(p) = p.y > depth / 2 - 1 ? !back : false;
 
-    fixing_block_positions(type)
-        fastened_fixing_block_assembly(t, bbox_screw(type), thickness2 = $thickness);
+    assembly(bbox_name(type)) {
 
-    for(x = [-1, 1])
-        translate([x * (width / 2 + t / 2 + eps + 25 * exploded()), 0])
-            rotate([90, 0, x * 90])
-                if(x > 0) {
-                    if(right)
-                        bbox_right(type);
+        for(p = corner_block_positions(type))
+            let(q = transform([0, 0, 0], p), thickness = q.z > 0 ? tt : bt)
+                multmatrix(p)
+                    fastened_corner_block_assembly(is_missing_screw(q) && ((q.z > 0) != (q.x > 0)) ? 0 : t, bbox_screw(type), thickness,
+                                                   is_missing_screw(q) && ((q.z > 0) == (q.x > 0)) ? 0 : t, star_washers = star_washers(type));
+
+        h = height / 2 - 1;
+        for(p = fixing_block_positions(type))
+            let(q = transform([0, 0, 0], p), thickness = q.z > h ? tt : q.z < -h ? bt : t)
+                multmatrix(p)
+                    fastened_fixing_block_assembly(is_missing_screw(q) ? 0 : t, bbox_screw(type), thickness2 = thickness, star_washers = star_washers(type));
+
+        for(x = [-1, 1])
+            translate([x * (width / 2 + t / 2 + eps + 25 * exploded()), 0])
+                rotate([90, 0, x * 90])
+                    if(x > 0) {
+                        if(right)
+                            bbox_right(type);
+                    }
+                    else
+                        if(left)
+                            bbox_left(type);
+
+        for(y = [1, -1])
+            translate([0, y * (depth / 2 + t / 2 + eps + 25 * exploded())])
+                rotate([90, 0, y * 90 + 90])
+                    if(y < 0) {
+                        if(front)
+                            bbox_front(type);
+                    }
+                    else
+                        if(back)
+                            bbox_back(type);
+
+        for(z = [-1, 1]) {
+            sheet_thickness = z > 0 ? tt : bt;
+            translate_z(z * (height / 2 + sheet_thickness / 2 + eps + 100 * exploded()))
+                if(z > 0) {
+                    if(top)
+                        bbox_top(type);
                 }
                 else
-                    if(left)
-                        bbox_left(type);
-
-    for(y = [-1, 1])
-        translate([0, y * (depth / 2 + t / 2 + eps + 25 * exploded())])
-            rotate([90, 0, y * 90 + 90])
-                if(y < 0) {
-                    if(front)
-                        bbox_front(type);
-                }
-                else
-                    if(back)
-                        bbox_back(type);
-
-    for(z = [-1, 1]) {
-        sheet_thickness = z > 0 ? tt : bt;
-        translate_z(z * (height / 2 + sheet_thickness / 2 + eps + 100 * exploded()))
-            if(z > 0) {
-                if(top)
-                    bbox_top(type);
-            }
-            else
-                if(base)
-                    bbox_base(type);
+                    if(base)
+                        bbox_base(type);
+        }
     }
 }

printed/cable_grommets.scad

@@ -130,7 +130,7 @@ module round_grommet_bottom(diameter, od = undef) { //! Generate the STL for a r
 }
 
 module round_grommet_hole(diameter, h = 100) //! Make a hole for a round grommet
-    drill(echoit(corrected_radius(diameter / 2) + wall + clearance), h);
+    drill(corrected_radius(diameter / 2) + wall + clearance, h);
 
 module round_grommet_assembly(diameter, thickness, od = undef) {
     color(pp1_colour)
@@ -149,12 +149,17 @@ module mouse_grommet_hole(r, h = 50, z = undef, expand = wall + clearance) //! M
         hull(){
             R = r + expand;
             translate([0, z == undef ? R : z])
-                semi_circle(R);
+                if(expand)
+                    semi_circle(R);
+                else
+                    semi_teardrop(r = R, h = 0);
 
             translate([-R, 0])
                 square([2 * R, eps]);
         }
 
+function mouse_grommet_offset(r) = r + wall;
+
 module mouse_grommet(r, thickness) { //! Make the STL for a mouse grommet
     stl(str("mouse_grommet_", r * 10, "_", thickness));
 
@@ -167,7 +172,7 @@ module mouse_grommet(r, thickness) { //! Make the STL for a mouse grommet
                 translate_z(side * (width - wall) / 2)
                     linear_extrude(height = wall, center = true)
                         difference() {
-                            mouse_grommet_hole(r + wall + overlap, z = r + wall, h = 0, expand = 0);
+                            mouse_grommet_hole(r, z = r + wall, h = 0, expand = wall + overlap);
 
                         translate([0, wall])
                             mouse_grommet_hole(r, h = 0, expand = 0);

printed/corner_block.scad

@@ -24,6 +24,11 @@
 //! See [butt_box](#Butt_box) for an example of usage.
 //!
 //! Note that the block with its inserts is defined as a sub assembly, but its fasteners get added to the parent assembly.
+//!
+//! Specific fasteners can be omitted by setting a side's thickness to 0 and the block omitted by setting ```show_block``` to false.
+//! This allows the block and one set of fasteners to be on one assembly and the other fasteners on the mating assemblies.
+//!
+//! Star washers can be omitted by setting ```star_washers``` to false.
 //
 include <../core.scad>
 include <../vitamins/screws.scad>
@@ -57,8 +62,8 @@ module corner_block_v_hole(screw = def_screw) //! Place children at the bottom s
     multmatrix(corner_block_v_hole(screw))
         children();
 
-module corner_block_h_holes(screw = def_screw) //! Place children at the side screw holes
-    for(p = corner_block_h_holes(screw))
+module corner_block_h_holes(screw = def_screw, index = undef) //! Place children at the side screw holes
+    for(p = !is_undef(index) ? [corner_block_h_holes(screw)[index]] : corner_block_h_holes(screw))
         multmatrix(p)
             children();
 
@@ -126,22 +131,33 @@ assembly(str("corner_block_M", 20 * screw_radius(screw))) {
         insert(insert);
 }
 
-module fastened_corner_block_assembly(thickness, screw = def_screw, thickness_below = undef, name = false) { //! Printed block with all fasteners
+module fastened_corner_block_assembly(thickness, screw = def_screw, thickness_below = undef, thickness_side2 = undef, name = false, show_block = true, star_washers = true) { //! Printed block with all fasteners
+    thickness2 = !is_undef(thickness_below) ? thickness_below : thickness;
+    thickness3 = !is_undef(thickness_side2) ? thickness_side2 : thickness;
     washer = screw_washer(screw);
     insert = screw_insert(screw);
-    screw_length = screw_shorter_than(2 * washer_thickness(washer) + thickness + insert_length(insert) + overshoot);
+    function screw_length(t) = screw_shorter_than((star_washers ? 2 : 1) * washer_thickness(washer) + t + insert_length(insert) + overshoot);
+    screw_length = screw_length(thickness);
+    screw_length2 = screw_length(thickness2);
+    screw_length3 = screw_length(thickness3);
 
-    corner_block_assembly(screw, name) children();
+    if(show_block)
+        corner_block_assembly(screw, name) children();
 
-    corner_block_h_holes(screw)
-        translate_z(thickness)
-            screw_and_washer(screw, screw_length, true);
+    if(thickness)
+        corner_block_h_holes(screw, 0)
+            translate_z(thickness)
+                screw_and_washer(screw, screw_length, star_washers);
 
-    thickness2 = thickness_below ? thickness_below : thickness;
-    screw_length2 = screw_shorter_than(2 * washer_thickness(washer) + thickness2 + insert_length(insert) + overshoot);
-    corner_block_v_hole(screw)
-        translate_z(thickness2)
-            screw_and_washer(screw, screw_length2, true);
+    if(thickness3)
+        corner_block_h_holes(screw, 1)
+            translate_z(thickness3)
+                screw_and_washer(screw, screw_length3, star_washers);
+
+    if(thickness2)
+        corner_block_v_hole(screw)
+            translate_z(thickness2)
+                screw_and_washer(screw, screw_length2, star_washers);
 }
 
 module corner_block_M20_stl() corner_block(M2_cap_screw);

printed/fixing_block.scad

@@ -24,6 +24,11 @@
 //! See [butt_box](#Butt_box) for an example of usage.
 //!
 //! Note that the block with its inserts is defined as a sub assembly, but its fasteners get added to the parent assembly.
+//!
+//! Specific fasteners can be omitted by setting a side's thickness to 0 and the block omitted by setting ```show_block``` to false.
+//! This allows the block and one set of fasteners to be on one assembly and the other fasteners on the mating assemblies.
+//!
+//! Star washers can be omitted by setting ```star_washers``` to false.
 //
 include <../core.scad>
 include <../vitamins/screws.scad>
@@ -116,20 +121,24 @@ assembly(str("fixing_block_M", 20 * screw_radius(screw))) {
         insert(insert);
 }
 
-module fastened_fixing_block_assembly(thickness, screw = def_screw, screw2 = undef, thickness2 = undef) { //! Assembly with fasteners in place
+module fastened_fixing_block_assembly(thickness, screw = def_screw, screw2 = undef, thickness2 = undef, show_block = true, star_washers = true) { //! Assembly with fasteners in place
     module fb_screw(screw, thickness) {
         washer = screw_washer(screw);
         insert = screw_insert(screw);
-        screw_length = screw_longer_than(2 * washer_thickness(washer) + thickness + insert_length(insert));
+        screw_length = screw_longer_than((star_washers ? 2 : 1) * washer_thickness(washer) + thickness + insert_length(insert));
 
-        translate_z(thickness)
-            screw_and_washer(screw, screw_length, true);
+        if(thickness)
+            translate_z(thickness)
+                screw_and_washer(screw, screw_length, star_washers);
     }
 
-    no_pose() fixing_block_assembly(screw);
+    if(show_block)
+        no_pose()
+            fixing_block_assembly(screw);
 
+    t2 = !is_undef(thickness2) ? thickness2 : thickness;
     fixing_block_v_holes(screw)
-        fb_screw(screw, thickness2 ? thickness2 : thickness);
+        fb_screw(screw, t2);
 
     fixing_block_h_hole(screw)
         fb_screw(screw2 ? screw2 : screw, thickness);

printed/foot.scad

@@ -66,7 +66,7 @@ module foot(type = foot) { //! Generate STL
     }
 }
 
-module foot_assembly(t = 0, type = foot) { //! Assembly with fasteners in place for specified sheet thickness
+module foot_assembly(t = 0, type = foot, flip = false) { //! Assembly with fasteners in place for specified sheet thickness
     screw = foot_screw(type);
     washer = screw_washer(screw);
     nut = screw_nut(screw);
@@ -79,11 +79,17 @@ module foot_assembly(t = 0, type = foot) { //! Assembly with fasteners in place
         if(t)
             explode(15, true)
                 translate_z(foot_thickness(type))
-                    screw_and_washer(screw, screw_length);
+                    if(flip)
+                        nut_and_washer(nut, true);
+                    else
+                        screw_and_washer(screw, screw_length);
     }
     if(t)
         translate_z(t)
-            nut_and_washer(nut, true);
+            if(flip)
+                screw_and_washer(screw, screw_length);
+            else
+                nut_and_washer(nut, true);
 }
 
 module insert_foot(type = insert_foot) { //! Generate STL for foot with insert

printed/psu_shroud.scad

@@ -33,10 +33,8 @@ wall = 1.8;
 top = 1.5;
 screw = M3_cap_screw;
 insert = screw_insert(screw);
-boss_r = wall + corrected_radius(insert_hole_radius(insert));
-boss_h = insert_hole_length(insert);
+boss_r = insert_boss_radius(insert, wall);
 counter_bore = 2;
-boss_h2 = boss_h + counter_bore;
 rad = 2;
 clearance = layer_height;
 overlap = 6;
@@ -137,49 +135,13 @@ module psu_shroud(type, cable_d, name, cables = 1) { //! Generate the STL file f
                         translate([0, height / 2])
                                 vertical_tearslot(h = 0, r = cable_d / 2, l = cable_d);
                 }
-
-    mirror([0, 1, 0]) {
-        // insert boss
-        translate_z(height - boss_h)
-            linear_extrude(height = boss_h)
-                psu_shroud_hole_positions(type)
-                    difference() {
-                        hull() {
-                            circle(boss_r);
-
-                            translate([0, $side * (boss_r - 1)])
-                                square([2 * boss_r, eps], center = true);
-                        }
-                        poly_circle(insert_hole_radius(insert));
-                    }
-
-        // insert boss counter_bore
-        translate_z(height - boss_h2)
-            linear_extrude(height = counter_bore + eps)
-                psu_shroud_hole_positions(type)
-                    difference() {
-                        hull() {
-                            circle(boss_r);
-
-                            translate([0, $side * (boss_r - 1)])
-                                square([2 * boss_r, eps], center = true);
-                        }
-                        poly_circle(insert_screw_diameter(insert) / 2 + 0.1);
-                    }
-        // support cones
-        translate_z(height - boss_h2)
-            psu_shroud_hole_positions(type)
-                hull() {
-                    cylinder(h = eps, r = boss_r - eps);
-
-                    translate([0, $side * (boss_r - 1)])
-                        cube([2 * boss_r, eps, eps], center = true);
-
-                    translate([0, $side * (boss_r - wall), - (2 * boss_r - wall)])
-                        cube(eps);
-                }
-    }
-}
+    // insert lugs
+    mirror([0, 1, 0])
+        psu_shroud_hole_positions(type)
+            translate_z(height)
+                rotate(90)
+                    insert_lug(insert, wall, $side, counter_bore);
+ }
 
 module psu_shroud_assembly(type, cable_d, name, cables = 1) //! The printed parts with inserts fitted
 assembly(str("psu_shroud_", name)) {

printed/screw_knob.scad

@@ -30,7 +30,7 @@ knob_stem_h = 6;
 knob_thickness = 4;
 knob_r = 8;
 knob_wave = 1;
-knob_waves = 9;
+knob_waves = 5;
 knob_height = knob_stem_h + knob_thickness;
 function knob_height() = knob_height;
 
@@ -73,5 +73,8 @@ assembly(str("screw_knob_M", 20 * screw_radius(screw), "_", length)) {
 module screw_knob_M30_stl() screw_knob(M3_hex_screw);
 module screw_knob_M40_stl() screw_knob(M4_hex_screw);
 
+//! * Press the M3 x 16 hex screw into the knob
 module screw_knob_M30_16_assembly() screw_knob_assembly(M3_hex_screw, 16);
+
+//! * Press the M4 x 16 hex screw into the knob
 module screw_knob_M40_16_assembly() screw_knob_assembly(M4_hex_screw, 16);

printed/ssr_shroud.scad

@@ -33,10 +33,8 @@ wall = 1.8;
 top = 1.5;
 screw = M3_cap_screw;
 insert = screw_insert(screw);
-boss_r = wall + corrected_radius(insert_hole_radius(insert));
-boss_h = insert_hole_length(insert);
+boss_r = insert_boss_radius(insert, wall);
 counter_bore = 2;
-boss_h2 = boss_h + counter_bore;
 rad = 3;
 clearance = layer_height;
 
@@ -61,7 +59,6 @@ module ssr_shroud_holes(type, cable_d) { //! Drill the screw and ziptie holes
         translate([ssr_shroud_cable_x(type, cable_d), side * (ssr_width(type) / 2 - 2 * boss_r)])
             rotate(-90)
                 cable_tie_holes(cable_d / 2, h = 0);
-
 }
 
 module ssr_shroud(type, cable_d, name) {    //! Generate the STL file for a specified ssr and cable
@@ -103,45 +100,11 @@ module ssr_shroud(type, cable_d, name) {    //! Generate the STL file for a spec
                             vertical_tearslot(h = 0, r = cable_d / 2, l = cable_d);
                     }
     // insert boss
-    translate_z(height - boss_h)
-        linear_extrude(height = boss_h)
-            ssr_shroud_hole_positions(type)
-                difference() {
-                    hull() {
-                        circle(boss_r);
-
-                        translate([0, -$side * (boss_r - 1)])
-                            square([2 * boss_r, eps], center = true);
-                    }
-                    poly_circle(insert_hole_radius(insert));
-                }
-
-    // insert boss counter_bore
-    translate_z(height - boss_h2)
-        linear_extrude(height = counter_bore + eps)
-            ssr_shroud_hole_positions(type)
-                difference() {
-                    hull() {
-                        circle(boss_r);
-
-                        translate([0, -$side * (boss_r - 1)])
-                            square([2 * boss_r, eps], center = true);
-                    }
-                    poly_circle(insert_screw_diameter(insert) / 2 + 0.1);
-                }
-    // support cones
     ssr_shroud_hole_positions(type)
-        hull() {
-            translate_z(-height + boss_h2) {
-                cylinder(h = eps, r = boss_r - eps);
-
-                translate([0, -$side * (boss_r - 1)])
-                    cube([2 * boss_r, eps, eps], center = true);
-            }
-            translate([0, -$side * (boss_r - wall), -height + boss_h2 + (2 * boss_r - wall)])
-                cube(eps);
-        }
-
+        vflip()
+            translate_z(height)
+                rotate(90)
+                    insert_lug(insert, wall, $side, counter_bore);
 }
 
 module ssr_shroud_assembly(type, cable_d, name) //! The printed parts with inserts fitted
@@ -153,7 +116,6 @@ assembly(str("ssr_shroud_", name)) {
 
     ssr_shroud_hole_positions(type)
         insert(insert);
-
 }
 
 module ssr_shroud_fastened_assembly(type, cable_d, thickness, name) //! Assembly with screws in place
@@ -177,6 +139,4 @@ module ssr_shroud_fastened_assembly(type, cable_d, thickness, name) //! Assembly
                     color(grey20)
                         cylinder(d = cable_d, h = 20, center = true);
         }
-
-
 }

readme.md

@@ -30,21 +30,23 @@ See [usage](docs/usage.md) for requirements, installation instructions and a usa
 <tr><td> <a href = "#D_connectors">D_connectors</a> </td><td> <a href = "#Rockers">Rockers</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 = "#Fans">Fans</a> </td><td> <a href = "#Rod">Rod</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 = "#Fuseholder">Fuseholder</a> </td><td> <a href = "#Screws">Screws</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 = "#Green_terminals">Green_terminals</a> </td><td> <a href = "#Sealing_strip">Sealing_strip</a> </td><td> <a href = "#Psu_shroud">Psu_shroud</a> </td><td> <a href = "#Sector">Sector</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 = "#Ribbon_clamp">Ribbon_clamp</a> </td><td> <a href = "#Sweep">Sweep</a> </td><td></td></tr>
-<tr><td> <a href = "#Iecs">Iecs</a> </td><td> <a href = "#Spades">Spades</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 = "#Inserts">Inserts</a> </td><td> <a href = "#Spools">Spools</a> </td><td> <a href = "#Socket_box">Socket_box</a> </td><td></td><td></td></tr>
-<tr><td> <a href = "#Jack">Jack</a> </td><td> <a href = "#Springs">Springs</a> </td><td> <a href = "#Ssr_shroud">Ssr_shroud</a> </td><td></td><td></td></tr>
-<tr><td> <a href = "#Leadnuts">Leadnuts</a> </td><td> <a href = "#Ssrs">Ssrs</a> </td><td> <a href = "#Strap_handle">Strap_handle</a> </td><td></td><td></td></tr>
-<tr><td> <a href = "#Leds">Leds</a> </td><td> <a href = "#Stepper_motors">Stepper_motors</a> </td><td></td><td></td><td></td></tr>
-<tr><td> <a href = "#Light_strips">Light_strips</a> </td><td> <a href = "#Toggles">Toggles</a> </td><td></td><td></td><td></td></tr>
-<tr><td> <a href = "#Linear_bearings">Linear_bearings</a> </td><td> <a href = "#Transformers">Transformers</a> </td><td></td><td></td><td></td></tr>
-<tr><td> <a href = "#Mains_sockets">Mains_sockets</a> </td><td> <a href = "#Tubings">Tubings</a> </td><td></td><td></td><td></td></tr>
-<tr><td> <a href = "#Meter">Meter</a> </td><td> <a href = "#Variacs">Variacs</a> </td><td></td><td></td><td></td></tr>
-<tr><td> <a href = "#Microswitches">Microswitches</a> </td><td> <a href = "#Veroboard">Veroboard</a> </td><td></td><td></td><td></td></tr>
-<tr><td> <a href = "#Microview">Microview</a> </td><td> <a href = "#Washers">Washers</a> </td><td></td><td></td><td></td></tr>
-<tr><td> <a href = "#Modules">Modules</a> </td><td> <a href = "#Wire">Wire</a> </td><td></td><td></td><td></td></tr>
-<tr><td> <a href = "#Nuts">Nuts</a> </td><td> <a href = "#Zipties">Zipties</a> </td><td></td><td></td><td></td></tr>
+<tr><td> <a href = "#Geared_steppers">Geared_steppers</a> </td><td> <a href = "#Sealing_strip">Sealing_strip</a> </td><td> <a href = "#Psu_shroud">Psu_shroud</a> </td><td> <a href = "#Sector">Sector</a> </td><td></td></tr>
+<tr><td> <a href = "#Green_terminals">Green_terminals</a> </td><td> <a href = "#Sheets">Sheets</a> </td><td> <a href = "#Ribbon_clamp">Ribbon_clamp</a> </td><td> <a href = "#Sweep">Sweep</a> </td><td></td></tr>
+<tr><td> <a href = "#Hot_ends">Hot_ends</a> </td><td> <a href = "#Spades">Spades</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 = "#Iecs">Iecs</a> </td><td> <a href = "#Spools">Spools</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 = "#Springs">Springs</a> </td><td> <a href = "#Ssr_shroud">Ssr_shroud</a> </td><td></td><td></td></tr>
+<tr><td> <a href = "#Jack">Jack</a> </td><td> <a href = "#Ssrs">Ssrs</a> </td><td> <a href = "#Strap_handle">Strap_handle</a> </td><td></td><td></td></tr>
+<tr><td> <a href = "#Ldrs">Ldrs</a> </td><td> <a href = "#Stepper_motors">Stepper_motors</a> </td><td></td><td></td><td></td></tr>
+<tr><td> <a href = "#Leadnuts">Leadnuts</a> </td><td> <a href = "#Toggles">Toggles</a> </td><td></td><td></td><td></td></tr>
+<tr><td> <a href = "#Leds">Leds</a> </td><td> <a href = "#Transformers">Transformers</a> </td><td></td><td></td><td></td></tr>
+<tr><td> <a href = "#Light_strips">Light_strips</a> </td><td> <a href = "#Tubings">Tubings</a> </td><td></td><td></td><td></td></tr>
+<tr><td> <a href = "#Linear_bearings">Linear_bearings</a> </td><td> <a href = "#Variacs">Variacs</a> </td><td></td><td></td><td></td></tr>
+<tr><td> <a href = "#Mains_sockets">Mains_sockets</a> </td><td> <a href = "#Veroboard">Veroboard</a> </td><td></td><td></td><td></td></tr>
+<tr><td> <a href = "#Meter">Meter</a> </td><td> <a href = "#Washers">Washers</a> </td><td></td><td></td><td></td></tr>
+<tr><td> <a href = "#Microswitches">Microswitches</a> </td><td> <a href = "#Wire">Wire</a> </td><td></td><td></td><td></td></tr>
+<tr><td> <a href = "#Microview">Microview</a> </td><td> <a href = "#Zipties">Zipties</a> </td><td></td><td></td><td></td></tr>
+<tr><td> <a href = "#Modules">Modules</a> </td><td></td><td></td><td></td><td></td></tr>
+<tr><td> <a href = "#Nuts">Nuts</a> </td><td></td><td></td><td></td><td></td></tr>
 </table>
 
 ---
@@ -620,7 +622,7 @@ Can draw three styles: solid, open frame and open frame with screw bosses.
 | Module | Description |
 |:--- |:--- |
 | ```fan(type)``` | Draw specified fan, origin in the centre |
-| ```fan_assembly(type, thickness, include_fan = true)``` | Fan with its fasteners |
+| ```fan_assembly(type, thickness, include_fan = true, screw = false)``` | Fan with its fasteners |
 | ```fan_hole_positions(type, z = undef)``` | Position children at the screw hole positions |
 | ```fan_holes(type, poly = false, screws = true, h = 100)``` | Make all the holes for the fan, or just the aperture if ```screws``` is false. Set ```poly``` true for poly_holes. |
 
@@ -683,6 +685,57 @@ Can draw three styles: solid, open frame and open frame with screw bosses.
 |   1 | ```fuseholder(6)``` |  Fuse holder 20mm |
 
 
+<a href="#top">Top</a>
+
+---
+<a name="Geared_steppers"></a>
+## Geared_steppers
+Geared tin can steppers
+
+
+[vitamins/geared_steppers.scad](vitamins/geared_steppers.scad) Object definitions.
+
+[vitamins/geared_stepper.scad](vitamins/geared_stepper.scad) Implementation.
+
+[tests/geared_steppers.scad](tests/geared_steppers.scad) Code for this example.
+
+### Properties
+| Function | Description |
+|:--- |:--- |
+| ```gs_boss_d(type)``` | Boss around the shaft diameter |
+| ```gs_boss_h(type)``` | Boss around the shaft height |
+| ```gs_bulge2_d(type)``` | Plastic rear bulge depth from centre |
+| ```gs_bulge2_h(type)``` | Plastic rear bulge height |
+| ```gs_bulge2_w(type)``` | Plastic rear bulge width |
+| ```gs_bulge_d(type)``` | Plastic bulge depth from centre |
+| ```gs_bulge_h(type)``` | Plastic bulge height |
+| ```gs_bulge_w(type)``` | Plastic bulge width |
+| ```gs_diameter(type)``` | Can diameter |
+| ```gs_flat_length(type)``` | Shaft flat length |
+| ```gs_height(type)``` | Can height |
+| ```gs_hole_d(type)``` | Screw hole diameter |
+| ```gs_lug_t(type)``` | Screw lug thickness |
+| ```gs_lug_w(type)``` | Screw lug width |
+| ```gs_offset(type)``` | Offset of the shaft from the centre of the can |
+| ```gs_pitch(type)``` | Screw pitch |
+| ```gs_shaft_d(type)``` | Shaft diameter |
+| ```gs_shaft_flat(type)``` | Shaft width across the flats |
+| ```gs_shaft_length(type)``` | Shaft length |
+
+### Modules
+| Module | Description |
+|:--- |:--- |
+| ```geared_stepper(type)``` | Draw the specified geared stepper |
+| ```geared_stepper_screw_positions(type)``` | Place children at the screw positions |
+
+![geared_steppers](tests/png/geared_steppers.png)
+
+### Vitamins
+| Qty | Module call | BOM entry |
+| ---:|:--- |:---|
+|   1 | ```geared_stepper(28BYJ_48)``` |  Geared stepper - 28BYJ-48 5V |
+
+
 <a href="#top">Top</a>
 
 ---
@@ -889,12 +942,18 @@ Heatfit threaded inserts. Can be pushed into thermoplastics using a soldering ir
 | ```insert_ring3_d(type)``` | Diameter of the bottom ring |
 | ```insert_screw_diameter(type)``` | Screw size |
 
+### Functions
+| Function | Description |
+|:--- |:--- |
+| ```insert_boss_radius(type, wall)``` | Compute the outer radius of an insert boss |
+
 ### Modules
 | Module | Description |
 |:--- |:--- |
 | ```insert(type)``` | Draw specified insert |
 | ```insert_boss(type, z, wall = 2 * extrusion_width)``` | Make a boss to take an insert |
 | ```insert_hole(type, counterbore = 0, horizontal = false)``` | Make a hole to take an insert, ```counterbore``` is the extra length for the screw |
+| ```insert_lug(insert, wall, side, counter_bore = 0)``` | Make a flying insert lug, see [ssr_shroud](#Ssr_shroud) |
 
 ![inserts](tests/png/inserts.png)
 
@@ -945,6 +1004,47 @@ E.g. a "brown" socket for mains live needs to be displayed as "sienna" to look r
 |   1 | ```jack_4mm_shielded("brown", 3, "sienna")``` |  4mm shielded jack socket brown |
 
 
+<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.
+
+
+[vitamins/ldrs.scad](vitamins/ldrs.scad) Object definitions.
+
+[vitamins/ldr.scad](vitamins/ldr.scad) Implementation.
+
+[tests/ldrs.scad](tests/ldrs.scad) Code for this example.
+
+### Properties
+| Function | Description |
+|:--- |:--- |
+| ```ldr_active(type)``` | The active width |
+| ```ldr_description(type)``` | Description |
+| ```ldr_diameter(type)``` | The diameter of the round bit |
+| ```ldr_lead_d(type)``` | The lead diameter |
+| ```ldr_pitch(type)``` | Pitch between the leads |
+| ```ldr_thickness(type)``` | Thickness |
+| ```ldr_width(type)``` | Across the flats |
+
+### Modules
+| Module | Description |
+|:--- |:--- |
+| ```LDR(type, lead_length = 3)``` | Draw an LDR, can specify the lead length |
+
+![ldrs](tests/png/ldrs.png)
+
+### Vitamins
+| Qty | Module call | BOM entry |
+| ---:|:--- |:---|
+|   1 | ```ldr(large_ldr)``` |  Light dependent resistor - large |
+|   1 | ```ldr(small_ldr)``` |  Light dependent resistor - small |
+
+
 <a href="#top">Top</a>
 
 ---
@@ -1558,11 +1658,12 @@ PCBs and perfboard with optional components. The shape can be a rectangle with o
 | ```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 positions |
 | ```pcb_screw_positions(type)``` | Positions children at the mounting hole positions |
-| ```pcb_spacer(screw, height, wall = 1.8)``` | Generate STL for PCB spacer |
+| ```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 |
 | ```uSD(size, cutout = false)``` | Draw uSD socket |
@@ -1588,7 +1689,7 @@ 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 |
-|  12 | ```nut(M2p5_nut, nyloc = true)``` |  Nut M2.5 x 2.2mm nyloc |
+|  16 | ```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 |
@@ -1604,6 +1705,7 @@ PCBs and perfboard with optional components. The shape can be a rectangle with o
 |   4 | ```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_pan_screw, 20)``` |  Screw M2.5 pan x 20mm |
+|   4 | ```screw(M2p5_pan_screw, 30)``` |  Screw M2.5 pan x 30mm |
 |   8 | ```screw(M3_cap_screw, 25)``` |  Screw M3 cap x 25mm |
 |   4 | ```screw(M3_cap_screw, 30)``` |  Screw M3 cap x 30mm |
 |  12 | ```screw(M4_cap_screw, 30)``` |  Screw M4 cap x 30mm |
@@ -1611,9 +1713,10 @@ PCBs and perfboard with optional components. The shape can be a rectangle with o
 |   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 |
-|  12 | ```washer(M2p5_washer)``` |  Washer  M2.5 x 5.9mm x 0.5mm |
+|  16 | ```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 |
 
 ### Printed
 | Qty | Filename |
@@ -1622,10 +1725,10 @@ PCBs and perfboard with optional components. The shape can be a rectangle with o
 |   4 | pcb_spacer20110.stl |
 |   4 | pcb_spacer20120.stl |
 |   4 | pcb_spacer20130.stl |
-|   4 | pcb_spacer2560.stl |
-|   8 | pcb_spacer2570.stl |
-|   4 | pcb_spacer2580.stl |
-|   4 | pcb_spacer2590.stl |
+|   4 | pcb_spacer25200.stl |
+|   4 | pcb_spacer2570.stl |
+|   4 | pcb_spacer2580_2.stl |
+|   4 | pcb_spacer2590_2.stl |
 |   4 | pcb_spacer30140.stl |
 |   4 | pcb_spacer30150.stl |
 |   4 | pcb_spacer30190.stl |
@@ -1994,10 +2097,12 @@ Ring terminals and earth assemblies for DiBond panels.
 ### Vitamins
 | Qty | Module call | BOM entry |
 | ---:|:--- |:---|
-|   1 | ```nut(M3_nut, nyloc = true)``` |  Nut M3 x 2.4mm nyloc |
+|   2 | ```nut(M3_nut, nyloc = true)``` |  Nut M3 x 2.4mm nyloc |
 |   1 | ```ring_terminal(M3_ringterm)``` |  Ring terminal 3mm |
+|   1 | ```ring_terminal(M3_ringterm_cs)``` |  Ring terminal 3mm |
+|   1 | ```screw(M3_cap_screw, 10)``` |  Screw M3 cap x 10mm |
 |   1 | ```screw(M3_dome_screw, 10)``` |  Screw M3 dome x 10mm |
-|   2 | ```star_washer(M3_washer)``` |  Washer star M3 x 0.5mm |
+|   4 | ```star_washer(M3_washer)``` |  Washer star M3 x 0.5mm |
 
 
 <a href="#top">Top</a>
@@ -2051,13 +2156,19 @@ Rocket switch. Also used for neon indicator in the same form factor.
 ---
 <a name="Rod"></a>
 ## Rod
-Steel rods, with optional chamfer.
+Steel rods and studding with chamfered ends.
 
 
 [vitamins/rod.scad](vitamins/rod.scad) Implementation.
 
 [tests/rod.scad](tests/rod.scad) Code for this example.
 
+### Modules
+| Module | Description |
+|:--- |:--- |
+| ```rod(d , l)``` | Draw a smooth rod with specified length and diameter |
+| ```studding(d , l)``` | Draw a threaded rod with specified length and diameter |
+
 ![rod](tests/png/rod.png)
 
 ### Vitamins
@@ -2070,6 +2181,13 @@ Steel rods, with optional chamfer.
 |   1 | ```rod(5, 80)``` |  Smooth rod 5mm x 80mm |
 |   1 | ```rod(6, 80)``` |  Smooth rod 6mm x 80mm |
 |   1 | ```rod(8, 80)``` |  Smooth rod 8mm x 80mm |
+|   1 | ```studding(10, 80)``` |  Threaded rod M10 x 80mm |
+|   1 | ```studding(12, 80)``` |  Threaded rod M12 x 80mm |
+|   1 | ```studding(3, 80)``` |  Threaded rod M3 x 80mm |
+|   1 | ```studding(4, 80)``` |  Threaded rod M4 x 80mm |
+|   1 | ```studding(5, 80)``` |  Threaded rod M5 x 80mm |
+|   1 | ```studding(6, 80)``` |  Threaded rod M6 x 80mm |
+|   1 | ```studding(8, 80)``` |  Threaded rod M8 x 80mm |
 
 
 <a href="#top">Top</a>
@@ -2215,7 +2333,7 @@ Note that modules that drill holes will return a 2D object if ```h``` is set to
 |:--- |:--- |
 | ```render_2D_sheet(type, color = false)``` | Extrude a 2D sheet template and give it the correct colour |
 | ```render_sheet(type, color = false)``` | Render a sheet in the correct colour after holes have been subtracted |
-| ```sheet(type, w, d, corners = [0, 0, 0, 0])``` | Draw speified sheet |
+| ```sheet(type, w, d, corners = [0, 0, 0, 0])``` | Draw specified sheet |
 | ```sheet_2D(type, w, d, corners = [0, 0, 0, 0])``` | 2D sheet template with specified size and optionally rounded corners |
 
 ![sheets](tests/png/sheets.png)
@@ -2235,6 +2353,7 @@ Note that modules that drill holes will return a 2D object if ```h``` is set to
 |   1 | ```sheet(MDF19, 30, 30, 2)``` |  Sheet MDF 30mm x 30mm x 19mm |
 |   1 | ```sheet(MDF6, 30, 30, 2)``` |  Sheet MDF 30mm x 30mm x 6mm |
 |   1 | ```sheet(PMMA10, 30, 30, 2)``` |  Sheet acrylic 30mm x 30mm x 10mm |
+|   1 | ```sheet(PMMA2, 30, 30, 2)``` |  Sheet acrylic 30mm x 30mm x 2mm |
 |   1 | ```sheet(PMMA3, 30, 30, 2)``` |  Sheet acrylic 30mm x 30mm x 3mm |
 |   1 | ```sheet(PMMA6, 30, 30, 2)``` |  Sheet acrylic 30mm x 30mm x 6mm |
 |   1 | ```sheet(PMMA8, 30, 30, 2)``` |  Sheet acrylic 30mm x 30mm x 8mm |
@@ -2303,6 +2422,7 @@ Filament spool models
 | Function | Description |
 |:--- |:--- |
 | ```spool_height(type)``` | Outside width |
+| ```spool_pitch(type)``` | Spacing of the rims |
 
 ### Modules
 | Module | Description |
@@ -2316,6 +2436,7 @@ Filament spool models
 | ---:|:--- |:---|
 |   1 | ```spool(spool_200x55)``` |  Filament spool 200 x 55 |
 |   1 | ```spool(spool_300x85)``` |  Filament spool 300 x 85 |
+|   1 | ```spool(spool_300x88)``` |  Filament spool 300 x 88 |
 
 
 <a href="#top">Top</a>
@@ -2527,7 +2648,7 @@ Toggle switches
 | ---:|:--- |:---|
 |   1 | ```toggle(AP5236, 3)``` |  Toggle switch AP5236 |
 |   1 | ```toggle(CK7101, 3)``` |  Toggle switch CK7101 |
-|   1 | ```toggle(CK7105, 3)``` |  Toggle switch CK7101 |
+|   1 | ```toggle(CK7105, 3)``` |  Toggle switch CK7105 |
 |   1 | ```toggle(MS332F, 3)``` |  Toggle switch MS332F |
 
 
@@ -2869,7 +2990,7 @@ Just a BOM entry at the moment and cable bundle size functions for holes, plus c
 |:--- |:--- |
 | ```cable_tie(cable_r, thickness)``` | A ziptie threaded around cable radius ```cable_r``` and through a panel with specified ```thickness```. |
 | ```cable_tie_holes(cable_r, h = 100)``` | Holes to thread a ziptie through a panel to make a cable tie. |
-| ```mouse_hole(cable, h = 100)``` | A mouse hole to allow a panel to go over a wire bundle. |
+| ```mouse_hole(cable, h = 100, teardrop = false)``` | A mouse hole to allow a panel to go over a wire bundle. |
 | ```ribbon_cable(ways, length)``` | Add ribbon cable to the BOM |
 | ```wire(color, strands, length, strand = 0.2)``` | Add stranded wire to the BOM |
 
@@ -3047,6 +3168,10 @@ and mounted components.
 A list specifies the internal dimensions, screw type, top, bottom and side sheet types and the block
 maximum spacing.
 
+ * An optional name can be specified to allow more then one box in a project.
+ * An optional list of fixing blocks to be omitted can be given.
+ * Star washers can be omitted by setting the 11th parameter to false.
+
 Uses [fixing blocks](#fixing_block) and [corner blocks](#corner_block).
 
 
@@ -3060,26 +3185,29 @@ Uses [fixing blocks](#fixing_block) and [corner blocks](#corner_block).
 | ```bbox_base_sheet(type)``` | Sheet type for the base |
 | ```bbox_depth(type)``` | Internal depth |
 | ```bbox_height(type)``` | Internal height |
+| ```bbox_name(type)``` | Optional name if there is more than one box in a project |
 | ```bbox_screw(type)``` | Screw type for corner blocks |
 | ```bbox_sheets(type)``` | Sheet type for the sides |
+| ```bbox_skip_blocks(type)``` | List of fixing blocks to skip, used to allow a hinged panel for example |
 | ```bbox_span(type)``` | Maximum span between fixing blocks |
 | ```bbox_top_sheet(type)``` | Sheet type for the top |
 | ```bbox_width(type)``` | Internal width |
+| ```star_washers(type)``` | Set to false to remove star washers. |
 
 ### Modules
 | Module | Description |
 |:--- |:--- |
 | ```_bbox_assembly(type, top = true, base = true, left = true, right = true, back = true, front = true)``` | The box assembly, wrap with a local copy without parameters |
 | ```bbox_back(type)``` | Default back, can be overridden to customise |
-| ```bbox_back_blank(type)``` | 2D template for the back |
+| ```bbox_back_blank(type, sheet = false)``` | 2D template for the back |
 | ```bbox_base(type)``` | Default base, can be overridden to customise |
 | ```bbox_base_blank(type)``` | 2D template for the base |
 | ```bbox_front(type)``` | Default front, can be overridden to customise |
-| ```bbox_front_blank(type)``` | 2D template for the front |
+| ```bbox_front_blank(type, sheet = false)``` | 2D template for the front |
 | ```bbox_left(type)``` | Default left side, can be overridden to customise |
-| ```bbox_left_blank(type)``` | 2D template for the left side |
+| ```bbox_left_blank(type, sheet = false)``` | 2D template for the left side |
 | ```bbox_right(type)``` | Default right side, can be overridden to customise |
-| ```bbox_right_blank(type)``` | 2D template for the right side |
+| ```bbox_right_blank(type, sheet = false)``` | 2D template for the right side |
 | ```bbox_shelf_blank(type)``` | 2D template for a shelf |
 | ```bbox_top(type)``` | Default top, can be overridden to customise |
 | ```bbox_top_blank(type)``` | 2D template for the top |
@@ -3197,6 +3325,11 @@ See [butt_box](#Butt_box) for an example of usage.
 
 Note that the block with its inserts is defined as a sub assembly, but its fasteners get added to the parent assembly.
 
+Specific fasteners can be omitted by setting a side's thickness to 0 and the block omitted by setting ```show_block``` to false.
+This allows the block and one set of fasteners to be on one assembly and the other fasteners on the mating assemblies.
+
+Star washers can be omitted by setting ```star_washers``` to false.
+
 
 [printed/corner_block.scad](printed/corner_block.scad) Implementation.
 
@@ -3217,10 +3350,10 @@ Note that the block with its inserts is defined as a sub assembly, but its faste
 |:--- |:--- |
 | ```corner_block(screw = def_screw, name = false)``` | Generate the STL for a printed corner block |
 | ```corner_block_assembly(screw = def_screw, name = false)``` | The printed block with inserts |
-| ```corner_block_h_holes(screw = def_screw)``` | Place children at the side screw holes |
+| ```corner_block_h_holes(screw = def_screw, index = undef)``` | Place children at the side screw holes |
 | ```corner_block_holes(screw = def_screw)``` | Place children at all the holes |
 | ```corner_block_v_hole(screw = def_screw)``` | Place children at the bottom screw hole |
-| ```fastened_corner_block_assembly(thickness, screw = def_screw, thickness_below = undef, name = false)``` | Printed block with all fasteners |
+| ```fastened_corner_block_assembly(thickness, screw = def_screw, thickness_below = undef, thickness_side2 = undef, name = false, show_block = true, star_washers = true)``` | Printed block with all fasteners |
 
 ![corner_block](tests/png/corner_block.png)
 
@@ -3409,6 +3542,11 @@ See [butt_box](#Butt_box) for an example of usage.
 
 Note that the block with its inserts is defined as a sub assembly, but its fasteners get added to the parent assembly.
 
+Specific fasteners can be omitted by setting a side's thickness to 0 and the block omitted by setting ```show_block``` to false.
+This allows the block and one set of fasteners to be on one assembly and the other fasteners on the mating assemblies.
+
+Star washers can be omitted by setting ```star_washers``` to false.
+
 
 [printed/fixing_block.scad](printed/fixing_block.scad) Implementation.
 
@@ -3428,7 +3566,7 @@ Note that the block with its inserts is defined as a sub assembly, but its faste
 ### Modules
 | Module | Description |
 |:--- |:--- |
-| ```fastened_fixing_block_assembly(thickness, screw = def_screw, screw2 = undef, thickness2 = undef)``` | Assembly with fasteners in place |
+| ```fastened_fixing_block_assembly(thickness, screw = def_screw, screw2 = undef, thickness2 = undef, show_block = true, star_washers = true)``` | Assembly with fasteners in place |
 | ```fixing_block(screw = def_screw)``` | Generate the STL |
 | ```fixing_block_assembly(screw = def_screw)``` | Printed part with the inserts inserted |
 | ```fixing_block_h_hole(screw = def_screw)``` | Position children on the horizontal hole |
@@ -3578,7 +3716,7 @@ inserts don't grip well in rubber.
 |:--- |:--- |
 | ```fastened_insert_foot_assembly(t = 3, type = insert_foot)``` | Assembly with fasteners in place for specified sheet thickness |
 | ```foot(type = foot)``` | Generate STL |
-| ```foot_assembly(t = 0, type = foot)``` | Assembly with fasteners in place for specified sheet thickness |
+| ```foot_assembly(t = 0, type = foot, flip = false)``` | Assembly with fasteners in place for specified sheet thickness |
 | ```insert_foot(type = insert_foot)``` | Generate STL for foot with insert |
 | ```insert_foot_assembly(type = insert_foot)``` | Printed part with insert in place |
 
@@ -4366,6 +4504,8 @@ heirachical BOMs are also generated for real projects.
 | ```no_pose()``` | Force children not to be posed even if parent is |
 | ```not_on_bom(on = false)``` | Specify the following child parts are not on the BOM, for example when they are on a PCB that comes assembled |
 | ```pose(a = [55, 0, 25], t = [0, 0, 0], exploded = undef)``` | Pose an STL or assembly for rendering to png by specifying rotation ```a``` and translation ```t```, ```exploded = true for``` just the exploded view or ```false``` for unexploded only. |
+| ```pose_hflip(exploded = undef)``` | Pose an STL or assembly for rendering to png by flipping around the Y axis, ```exploded = true for``` just the exploded view or ```false``` for unexploded only. |
+| ```pose_vflip(exploded = undef)``` | Pose an STL or assembly for rendering to png by flipping around the X axis, ```exploded = true for``` just the exploded view or ```false``` for unexploded only. |
 | ```stl(name)``` | Name an stl that will appear on the BOM, there needs to a module named ```<name>_stl``` to make it |
 | ```vitamin(description)``` | Describe a vitamin for the BOM entry and precede it with a module call that creates it, eg. "wigit(42): Type 42 widget" |
 
@@ -4457,6 +4597,7 @@ Global constants, functions and modules. This file is used directly or indirectl
 | ```ellipse(xr, yr)``` | Draw an ellipse |
 | ```extrude_if(h, center = true)``` | Extrudes 2D object to 3D when ```h``` is nonzero, otherwise leaves it 2D |
 | ```hflip()``` | Invert children by doing a 180&deg; flip around the Y axis |
+| ```right_triangle(width, height, h, center = true)``` | A right angled triangle with the 90&deg; corner at the origin. 3D when ```h``` is nonzero, otherwise 2D |
 | ```semi_circle(r, d = undef)``` | A semi circle in the positive Y domain |
 | ```translate_z(z)``` | Shortcut for Z only translations |
 | ```vflip()``` | Invert children by doing a 180&deg; flip around the X axis |
@@ -4493,6 +4634,7 @@ The module provides `poly_circle()`, `poly_cylinder()` and `poly_ring()` that is
 | ```poly_circle(r, sides = 0)``` | Make a circle adjusted to print the correct size |
 | ```poly_cylinder(r, h, center = false, sides = 0)``` | Make a cylinder adjusted to print the correct size |
 | ```poly_ring(or, ir)``` | Make a 2D ring adjusted to have the correct internal radius |
+| ```poly_tube(or, ir, h, center = false)``` | Make a tube adjusted to have the correct internal radius |
 | ```slot(r, l, h = 100)``` | Make a horizontal slot suitable for CNC routing, set h = 0 for 2D version |
 
 ![polyholes](tests/png/polyholes.png)
@@ -4582,6 +4724,7 @@ 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 |

scripts/deps.py

@@ -37,9 +37,10 @@ def read_deps(dname):
                 deps.append(dep)
     return deps
 
-def check_deps(target_mtime, dname):
+def check_deps(target, dname):
+    target_mtime = mtime(target)
     if not target_mtime:
-        return "target missing"
+        return target + " missing"
     if not os.path.isfile(dname):
         return "no deps"
     deps = read_deps(dname)

scripts/exports.py

@@ -84,7 +84,6 @@ def make_parts(target, part_type, parts = None):
     # Find all the scad files
     #
     lib_dir = os.environ['OPENSCADPATH'] + '/NopSCADlib/printed'
-    used = []
     module_suffix = '_dxf' if part_type == 'svg' else '_' + part_type
     for dir in [source_dir, lib_dir]:
         for filename in os.listdir(dir):
@@ -113,7 +112,7 @@ def make_parts(target, part_type, parts = None):
                                     #
                                     part_file = target_dir + "/" + part
                                     dname = deps_name(deps_dir, filename)
-                                    changed = check_deps(mtime(part_file), dname)
+                                    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"
@@ -125,14 +124,9 @@ def make_parts(target, part_type, parts = None):
                                         if part_type == 'stl':
                                             bounds = c14n_stl.canonicalise(part_file)
                                             bounds_map[part] = bounds
+
                                     targets.remove(part)
                                     os.remove(part_maker_name)
-                                    #
-                                    # Add the files on the BOM to the used list for plates.py
-                                    #
-                                    for line in open("openscad.log"):
-                                        if line[:7] == 'ECHO: "' and line[-6:] == '.' + part_type + '"\n':
-                                            used.append(line[7:-2])
     #
     # Write new bounds file
     #
@@ -150,4 +144,3 @@ def make_parts(target, part_type, parts = None):
                 print("Could not find a module called", part[:-4] + module_suffix, "to make", part)
         sys.exit(1)
     times.print_times()
-    return used

scripts/make_all.py

@@ -26,6 +26,7 @@ from exports import make_parts
 from bom import boms
 from render import render
 from views import views
+from plateup import plateup
 
 if __name__ == '__main__':
     target = None if len(sys.argv) == 1 else sys.argv[1]
@@ -33,4 +34,6 @@ if __name__ == '__main__':
     for part in ['stl', 'dxf']:
         make_parts(target, part)
         render(target, part)
+        plateup(target, part)
+
     views(target)

scripts/openscad.py

@@ -24,11 +24,12 @@ from __future__ import print_function
 
 import subprocess, sys
 
-def run(*args):
+def run(*args, silent = False):
     cmd = ["openscad"] + list(args)
-    for arg in cmd:
-        print(arg, end=" ")
-    print()
+    if not silent:
+        for arg in cmd:
+            print(arg, end=" ")
+        print()
     with open("openscad.log", "w") as log:
         rc = subprocess.call(cmd, stdout = log, stderr = log)
     for line in open("openscad.log", "rt"):

scripts/panels.py

@@ -0,0 +1,33 @@
+#!/usr/bin/env python
+
+#
+# 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/>.
+#
+#! Panelises DXF files so they can be routed together by running scad files found in the ```panels``` directory.
+
+from __future__ import print_function
+import sys
+
+from plateup import plateup
+
+if __name__ == '__main__':
+    if len(sys.argv) > 1:
+        target = sys.argv[1]
+    else:
+        target = None
+    plateup(target, 'dxf')

scripts/plateup.py

@@ -0,0 +1,98 @@
+#!/usr/bin/env python
+
+#
+# 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/>.
+#
+
+from __future__ import print_function
+import os
+import openscad
+import sys
+import c14n_stl
+from set_config import *
+from deps import *
+from shutil import copyfile
+
+source_dirs = { "stl" : "platters", "dxf" : "panels" }
+target_dirs = { "stl" : "printed",  "dxf" : "routed" }
+
+def plateup(target, part_type):
+    #
+    # Make the target directory
+    #
+    top_dir = set_config(target)
+    parts_dir = top_dir + part_type + 's'
+    target_dir = parts_dir + '/' + target_dirs[part_type]
+    source_dir = top_dir + source_dirs[part_type]
+    deps_dir = source_dir + "/deps"
+    if not os.path.isdir(source_dir):
+        return
+    if not os.path.isdir(target_dir):
+        os.makedirs(target_dir)
+    if not os.path.isdir(deps_dir):
+        os.makedirs(deps_dir)
+    #
+    # Decide which files to make
+    #
+    sources = [file for file in os.listdir(source_dir) if file.endswith('.scad')]
+    #
+    # Run OpenSCAD on the source files to make the targets
+    #
+    used = []
+    for src in sources:
+        src_file = source_dir + '/' + src
+        part_file = target_dir + '/' + src[:-4] + part_type
+        dname = deps_name(deps_dir, src)
+        changed = check_deps(part_file, dname)
+        if changed:
+            print(changed)
+            openscad.run("-D$bom=1", "-d", dname, "-o", part_file, src_file)
+            if part_type == 'stl':
+                c14n_stl.canonicalise(part_file)
+            log_name = 'openscad.log'
+        else:
+            log_name = 'openscad.echo'
+            openscad.run("-D$bom=1", "-o", log_name, src_file, silent = True)
+        #
+        # Add the files on the BOM to the used list
+        #
+        with open(log_name) as file:
+            for line in file.readlines():
+                if line.startswith('ECHO: "~') and line.endswith('.' + part_type + '"\n'):
+                    used.append(line[8:-2])
+    #
+    # Copy file that are not included
+    #
+    copied = []
+    for file in os.listdir(parts_dir):
+        if file.endswith('.' + part_type) and not file in used:
+            src = parts_dir + '/' + file
+            dst = target_dir + '/' + file
+            if mtime(src) > mtime(dst):
+                print("Copying %s to %s" % (src, dst))
+                copyfile(src, dst)
+            copied.append(file)
+    #
+    # Remove any cruft
+    #
+    targets = [file[:-4] + part_type for file in sources]
+    for file in os.listdir(target_dir):
+        if file.endswith('.' + part_type):
+            if not file in targets and not file in copied:
+                print("Removing %s" % file)
+                os.remove(target_dir + '/' + file)

scripts/platters.py

@@ -0,0 +1,33 @@
+#!/usr/bin/env python
+
+#
+# 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/>.
+#
+#! Generates build plates of STL files for efficient printing by running scad files found in the ```platters``` directory.
+
+from __future__ import print_function
+import sys
+
+from plateup import plateup
+
+if __name__ == '__main__':
+    if len(sys.argv) > 1:
+        target = sys.argv[1]
+    else:
+        target = None
+    plateup(target, 'stl')

scripts/readme.md

@@ -12,6 +12,8 @@ They should work with both Python 2 and Python 3.
 | ```dxfs.py``` | Generates DXF files for all the routed parts listed on the BOM or a specified list. |
 | ```gallery.py``` | Finds projects and adds them to the gallery. |
 | ```make_all.py``` | Generates all the files for a project by running ```bom.py```, ```stls.py```, ```dxfs.py```, ```render.py``` and ```views.py```. |
+| ```panels.py``` | Panelises DXF files so they can be routed together by running scad files found in the ```panels``` directory. |
+| ```platters.py``` | Generates build plates of STL files for efficient printing by running scad files found in the ```platters``` directory. |
 | ```render.py``` | Renders STL and DXF files to PNG for inclusion in the build instructions. |
 | ```set_config.py``` | Sets the target configuration for multi-target projects that have variable configurations. |
 | ```stls.py``` | Generates STL files for all the printed parts listed on the BOM or a specified list. |

scripts/tests.py

@@ -187,7 +187,7 @@ def tests(tests):
             body += ["![%s](%s)\n" %(base_name, png_name)]
 
             dname = deps_name(deps_dir, scad)
-            oldest = min(mtime(png_name), mtime(bom_name))
+            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)
             if changed:

scripts/views.py

@@ -154,14 +154,14 @@ def views(target, do_assemblies = None):
                                         f.write("use <%s/%s>\n" % (dir, filename))
                                         f.write("%s();\n" % module);
                                     #
-                                    # Run openscad on the created file
+                                    # Run openscad on th 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(mtime(png_name), dname)
+                                        changed = check_deps(png_name, dname)
                                         changed = times.check_have_time(changed, png_name)
                                         tmp_name = 'tmp.png'
                                         if changed:
@@ -219,36 +219,49 @@ def views(target, do_assemblies = None):
             # Global BOM
             #
             print('<a name="Parts_list"></a>\n## Parts list', file = doc_file)
-            vitamins = {}
-            printed = {}
-            routed = {}
+            types = ["vitamins", "printed", "routed"]
+            headings = {"vitamins" : "vitamins", "printed" : "3D printed parts", "routed" : "CNC routed parts"}
+            things = {}
+            for t in types:
+                things[t] = {}
             for ass in flat_bom:
-                for v in ass["vitamins"]:
-                    if v in vitamins:
-                        vitamins[v] += ass["vitamins"][v]
-                    else:
-                        vitamins[v] = ass["vitamins"][v]
-                for p in ass["printed"]:
-                    if p in printed:
-                        printed[p] += ass["printed"][p]
-                    else:
-                        printed[p] = ass["printed"][p]
+                for t in types:
+                    for thing in ass[t]:
+                        if thing in things[t]:
+                            things[t][thing] += ass[t][thing]
+                        else:
+                            things[t][thing] = ass[t][thing]
             for ass in flat_bom:
                 name = ass["name"][:-9].replace('_', ' ').title().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)
-            for v in sorted(vitamins, key = lambda s: s.split(":")[-1]):
-                for ass in flat_bom:
-                    count = ass["vitamins"][v] if v in ass["vitamins"] else '.'
-                    print('| %s ' % pad(count, 2, 1), file = doc_file, end = '')
-                print('|  %s | %s |' % (pad(vitamins[v], 2, 1), pad(v.split(":")[1], 2)), file = doc_file)
-            print(('|  ' * len(flat_bom) + '| | **3D Printed parts** |'), file = doc_file)
-            for p in sorted(printed):
-                for ass in flat_bom:
-                    count = ass["printed"][p] if p in ass["printed"] else '.'
-                    print('| %s ' % pad(count, 2, 1), file = doc_file, end = '')
-                print('| %s | %s |' % (pad(printed[p], 2, 1), pad(p, 3)), file = doc_file)
+
+            for t in types:
+                if things[t]:
+                    totals = {}
+                    heading = headings[t][0:1].upper() + headings[t][1:]
+                    print(('|  ' * len(flat_bom) + '| | **%s** |') % heading, file = doc_file)
+                    for thing in sorted(things[t], key = lambda s: s.split(":")[-1]):
+                        for ass in flat_bom:
+                            count = ass[t][thing] if thing in ass[t] else 0
+                            print('| %s ' % pad(count if count else '.', 2, 1), file = doc_file, end = '')
+                            name = ass["name"]
+                            if name in totals:
+                                totals[name] += count
+                            else:
+                                totals[name] = count
+                        print('|  %s | %s |' % (pad(things[t][thing], 2, 1), pad(thing.split(":")[-1], 2)), file = doc_file)
+
+                    grand_total = 0
+                    for ass in flat_bom:
+                        name = ass["name"]
+                        total = totals[name] if name in totals else 0
+                        print('| %s ' % pad(total if total else '.', 2, 1), file = doc_file, end = '')
+                        grand_total += total
+                    print("| %s | %s |" % (pad(grand_total, 2, 1), pad('Total %s count' % headings[t], 2)), file = doc_file)
+
             print(file = doc_file)
             eop(print_mode, doc_file)
             #
@@ -267,7 +280,7 @@ def views(target, do_assemblies = None):
                     print("### Vitamins",         file = doc_file)
                     print("|Qty|Description|",    file = doc_file)
                     print("|--:|:----------|",    file = doc_file)
-                    for v in vitamins:
+                    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)
 

tests/fillet.scad

@@ -20,7 +20,8 @@ include <../global_defs.scad>
 use <../utils/fillet.scad>
 
 module fillets() {
-    fillet(3, 25);
+    rotate(180)
+        fillet(3, 10);
 }
 
 fillets();

tests/geared_steppers.scad

@@ -0,0 +1,27 @@
+//
+// NopSCADlib Copyright Chris Palmer 2019
+// 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 <../vitamins/geared_steppers.scad>
+
+use <../utils/layout.scad>
+
+module geared_steppers()
+    layout([for(g = geared_steppers) gs_diameter(g)], 5)
+        geared_stepper(geared_steppers[$i]);
+
+geared_steppers();

tests/global.scad

@@ -25,6 +25,9 @@ module globals() {
 
         translate([30, 0])
             ellipse(15, 7);
+
+        translate([50, 0])
+            right_triangle(10, 20, 0);
     }
 }
 

tests/ldrs.scad

@@ -0,0 +1,27 @@
+//
+// 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 <../vitamins/ldrs.scad>
+
+use <../utils/layout.scad>
+
+module ldrs()
+    layout([for(l = ldrs) ldr_diameter(l)], 5)
+        LDR(ldrs[$i]);
+
+ldrs();

tests/polyholes.scad

@@ -52,8 +52,8 @@ module polyholes() {
     sizes = [1.5, 2, 3, 4];
     for(i = [0 : len(sizes) - 1])
         translate([i * 10, -10]) {
-            color(pp1_colour) linear_extrude(height = 1)
-                poly_ring(ir = ir, or = cir + sizes[i] * extrusion_width);
+            color(pp1_colour)
+                poly_tube(ir = ir, or = cir + sizes[i] * extrusion_width, h = 1);
 
             rod(2 * ir, 3);
        }

tests/rod.scad

@@ -24,8 +24,13 @@ include <../vitamins/linear_bearings.scad>
 use <../vitamins/rod.scad>
 
 module rods()
-    layout([for(b = linear_bearings) 2 * bearing_radius(b)])
+    layout([for(b = linear_bearings) 2 * bearing_radius(b)]) {
+
         rod(bearing_rod_dia(linear_bearings[$i]), 80);
 
+        translate([0, 20])
+            studding(bearing_rod_dia(linear_bearings[$i]), 80);
+    }
+
 if($preview)
     rods();

tests/teardrops.scad

@@ -36,7 +36,10 @@ module teardrops() {
                         tearslot(h = 0, r = 3, w = 10);
 
                     translate([30, 15])
-                         vertical_tearslot(h = 0, r =3, l = 10);
+                        vertical_tearslot(h = 0, r =3, l = 10);
+
+                    translate([20, 10])
+                        semi_teardrop(h = 0, r = 3);
                 }
 }
 

tests/wire.scad

@@ -61,7 +61,7 @@ module wires() {
                     translate([-w / 2, 0])
                         square([w, h]);
 
-                    mouse_hole(bundle, 0);
+                    mouse_hole(bundle, 0, true);
                 }
 
         translate_z(-thickness)

utils/core/bom.scad

@@ -63,6 +63,22 @@ module pose(a = [55, 0, 25], t = [0, 0, 0], exploded = undef)       //! Pose an
                             translate(-t)
                                 children();
 
+module pose_hflip(exploded = undef)       //! Pose an STL or assembly for rendering to png by flipping around the Y axis, ```exploded = true for``` just the exploded view or ```false``` for unexploded only.
+    if(is_undef($pose) || !is_undef($posed) || (!is_undef(exploded) && exploded != !!exploded()))
+        children();
+    else
+        let($posed = true) // only pose the top level
+            hflip()
+                children();
+
+module pose_vflip(exploded = undef)       //! Pose an STL or assembly for rendering to png by flipping around the X axis, ```exploded = true for``` just the exploded view or ```false``` for unexploded only.
+    if(is_undef($pose) || !is_undef($posed) || (!is_undef(exploded) && exploded != !!exploded()))
+        children();
+    else
+        let($posed = true) // only pose the top level
+            vflip()
+                children();
+
 
 module assembly(name) {                 //! Name an assembly that will appear on the BOM, there needs to a module named ```<name>_assembly``` to make it
     if(bom_mode())

utils/core/global.scad

@@ -63,6 +63,10 @@ module semi_circle(r, d = undef)                    //! A semi circle in the pos
             square([2 * sq, sq]);
     }
 
+module right_triangle(width, height, h, center = true) //! A right angled triangle with the 90° corner at the origin. 3D when ```h``` is nonzero, otherwise 2D
+    extrude_if(h, center = center)
+        polygon(points = [[0,0], [width, 0], [0, height]]);
+
 include <sphere.scad>
 include <bom.scad>
 include <polyholes.scad>

utils/core/polyholes.scad

@@ -62,6 +62,10 @@ module poly_ring(or, ir) { //! Make a 2D ring adjusted to have the correct inter
                 }
 }
 
+module poly_tube(or, ir, h, center = false) //! Make a tube adjusted to have the correct internal radius
+    extrude_if(h, center)
+        poly_ring(or, ir);
+
 module drill(r, h = 100) //! Make a cylinder for drilling holes suitable for CNC routing, set h = 0 for circle
     extrude_if(h)
         circle(r = corrected_radius(r, r2sides(r)));

utils/core/teardrops.scad

@@ -34,6 +34,18 @@ module teardrop(h, r, center = true, truncate = true) //! For making horizontal
                     polygon([[0, 0], [eps, 0], [0, r * sqrt(2)]]);
             }
 
+module semi_teardrop(h, r, d = undef, center = true) //! A semi teardrop in the positive Y domain
+    render(convexity = 5)
+        extrude_if(h, center)
+            intersection() {
+                R = is_undef(d) ? r : d / 2;
+                teardrop(r = R, h = 0);
+
+                sq = R + 1;
+                translate([-sq, 0])
+                    square([2 * sq, sq]);
+            }
+
 module teardrop_plus(h, r, center = true, truncate = true) //! Slightly bigger teardrop to allow for the 3D printing staircase effect
     teardrop(h, r + layer_height / 4, center, truncate);
 

utils/fillet.scad

@@ -28,5 +28,6 @@ module fillet(r, h, center = false) //! Fillet with specified radius and height
             translate([-eps, -eps, 0])
                 square(r + eps);
 
-            circle(r + eps);
+            translate([r, r])
+                circle(r + eps);
         }

vitamins/fan.scad

@@ -151,16 +151,16 @@ function nut_and_washer_thickness(screw, nyloc) = washer_thickness(screw_washer(
 function fan_screw_depth(type) = fan_boss_d(type) ? fan_depth(type) : fan_thickness(type);
 function fan_screw_length(type, thickness) = screw_longer_than(thickness + fan_screw_depth(type) + nut_and_washer_thickness(fan_screw(type), true)); //! Screw length required
 
-module fan_assembly(type, thickness, include_fan = true) { //! Fan with its fasteners
+module fan_assembly(type, thickness, include_fan = true, screw = false) { //! Fan with its fasteners
     translate_z(-fan_depth(type) / 2) {
         if(include_fan)
             fan(type);
 
-        screw = fan_screw(type);
-        nut = screw_nut(screw);
+        Screw = screw ? screw : fan_screw(type);
+        nut = screw_nut(Screw);
         fan_hole_positions(type) {
             translate_z(thickness)
-                screw_and_washer(screw, fan_screw_length(type, thickness));
+                screw_and_washer(Screw, fan_screw_length(type, thickness));
 
             translate_z(include_fan ? -fan_screw_depth(type) : 0)
                 vflip()

vitamins/geared_stepper.scad

@@ -0,0 +1,114 @@
+//
+// NopSCADlib Copyright Chris Palmer 2019
+// 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/>.
+//
+
+//
+//! Geared tin can steppers
+//
+include <../core.scad>
+use <../utils/rounded_cylinder.scad>
+use <../utils/round.scad>
+
+function gs_diameter(type)     = type[2]; //! Can diameter
+function gs_height(type)       = type[3]; //! Can height
+function gs_pitch(type)        = type[4]; //! Screw pitch
+function gs_lug_w(type)        = type[5]; //! Screw lug width
+function gs_lug_t(type)        = type[6]; //! Screw lug thickness
+function gs_hole_d(type)       = type[7]; //! Screw hole diameter
+function gs_offset(type)       = type[8]; //! Offset of the shaft from the centre of the can
+function gs_boss_d(type)       = type[9]; //! Boss around the shaft diameter
+function gs_boss_h(type)       = type[10]; //! Boss around the shaft height
+function gs_shaft_d(type)      = type[11]; //! Shaft diameter
+function gs_shaft_flat(type)   = type[12]; //! Shaft width across the flats
+function gs_shaft_length(type) = type[13]; //! Shaft length
+function gs_flat_length(type)  = type[14]; //! Shaft flat length
+function gs_bulge_w(type)      = type[15]; //! Plastic bulge width
+function gs_bulge_d(type)      = type[16]; //! Plastic bulge depth from centre
+function gs_bulge_h(type)      = type[17]; //! Plastic bulge height
+function gs_bulge2_w(type)     = type[18]; //! Plastic rear bulge width
+function gs_bulge2_d(type)     = type[19]; //! Plastic rear bulge depth from centre
+function gs_bulge2_h(type)     = type[20]; //! Plastic rear bulge height
+
+module geared_stepper_screw_positions(type) //! Place children at the screw positions
+    for(side = [-1, 1])
+        translate([side * gs_pitch(type) / 2, -gs_offset(type)])
+            children();
+
+module geared_stepper(type) { //! Draw the specified geared stepper
+    vitamin(str("geared_stepper(", type[0], "): Geared stepper - ", type[1]));
+
+    radius = gs_diameter(type) / 2;
+    height = gs_height(type);
+    offset = gs_offset(type);
+    color("silver") {
+        translate([0, -offset])
+            rounded_cylinder(r = radius, h = height, r2 = 1);
+
+        cylinder(d = gs_boss_d(type), h = 2 * gs_boss_h(type), center = true);
+
+        linear_extrude(height = gs_lug_t(type))
+            difference() {
+                hull()
+                    geared_stepper_screw_positions(type)
+                        circle(d = gs_lug_w(type));
+
+                geared_stepper_screw_positions(type)
+                    circle(d = gs_hole_d(type));
+            }
+
+        translate([0, -offset - radius, eps])
+            cube([gs_bulge_w(type) - 2, 2 * (gs_bulge_d(type) - radius) - 2, 2 * eps], center = true);
+    }
+    vflip()
+        color(brass) {
+            d = gs_shaft_d(type);
+            h = gs_shaft_length(type);
+            linear_extrude(height = h)
+                intersection() {
+                    circle(d = d);
+
+                    square([d + 1, gs_shaft_flat(type)], center = true);
+                }
+
+            cylinder(d = d, h = h - gs_flat_length(type));
+        }
+
+    color("skyblue") {
+        h1 = gs_bulge_h(type);
+        translate([0, - offset - radius, eps])
+            rounded_rectangle([gs_bulge_w(type), 2 * (gs_bulge_d(type) - radius), h1], 0.5, center = false);
+
+        h2 = gs_bulge2_h(type);
+        translate([0, - offset, h1 + 1 - h2])
+            linear_extrude(height = h2)
+                round(0.5)
+                    intersection() {
+                        circle(gs_bulge2_d(type));
+
+                        translate([0, -50])
+                            square([gs_bulge2_w(type), 100], center = true);
+                    }
+    }
+
+    translate_z(2.5)
+        for(i = [0 : 4])
+            translate([i - 2.5, 0])
+                rotate([90, 0, 0])
+                    color(["yellow", "orange", "red", "pink", "blue"][i])
+                        cylinder(d = 1, h = radius + offset + 10);
+}

vitamins/geared_steppers.scad

@@ -0,0 +1,27 @@
+//
+// NopSCADlib Copyright Chris Palmer 2019
+// 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/>.
+//
+
+//
+//! Geared tin can steppers
+//
+28BYJ_48 = ["28BYJ_48", "28BYJ-48 5V", 28, 19, 35, 7, 0.85, 4.2, 8, 9, 1.5, 5, 3, 10, 6, 14.7, 17, 16.5, 17.7, 15.5, 13.8 ];
+
+geared_steppers = [28BYJ_48];
+
+use <geared_stepper.scad>

vitamins/insert.scad

@@ -93,6 +93,8 @@ module insert_hole(type, counterbore = 0, horizontal = false) { //! Make a hole
         }
 }
 
+function insert_boss_radius(type, wall) = corrected_radius(insert_hole_radius(type)) + wall; //! Compute the outer radius of an insert boss
+
 module insert_boss(type, z, wall = 2 * extrusion_width) { //! Make a boss to take an insert
     render(convexity = 3)
         difference() {
@@ -105,3 +107,45 @@ module insert_boss(type, z, wall = 2 * extrusion_width) { //! Make a boss to tak
                 insert_hole(type, max(0, z - insert_hole_length(type) - 2 * layer_height));
         }
 }
+
+module insert_lug(insert, wall, side, counter_bore = 0) { //! Make a flying insert lug, see [ssr_shroud](#Ssr_shroud)
+    boss_r = insert_boss_radius(insert, wall);
+    boss_h = insert_hole_length(insert);
+    boss_h2 = boss_h + counter_bore;
+    translate_z(-boss_h)
+        linear_extrude(height = boss_h)
+             difference() {
+                hull() {
+                    circle(boss_r);
+
+                    translate([side * (boss_r - 1), 0])
+                        square([eps, 2 * boss_r], center = true);
+                }
+                poly_circle(insert_hole_radius(insert));
+            }
+
+    // insert boss counter_bore
+    translate_z(-boss_h2) {
+        linear_extrude(height = counter_bore + eps)
+             difference() {
+                hull() {
+                    circle(boss_r);
+
+                    translate([side * (boss_r - 1), 0])
+                        square([eps, 2 * boss_r], center = true);
+                }
+                poly_circle(insert_screw_diameter(insert) / 2 + 0.1);
+            }
+
+        // support cones
+        hull() {
+            cylinder(h = eps, r = boss_r - eps);
+
+            translate([side * (boss_r - 1), 0])
+                cube([eps, 2 * boss_r, eps], center = true);
+
+            translate([side * (boss_r - wall + eps), 0, - (2 * boss_r - wall)])
+                cube(eps, center = true);
+        }
+    }
+}

vitamins/ldr.scad

@@ -0,0 +1,105 @@
+//
+// 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/>.
+//
+
+//
+//! Light dependent resistors.
+//!
+//! Larger ones seem to have both a higher dark resistance and a lower bright light resistance.
+//
+include <../core.scad>
+
+function ldr_description(type) = type[1]; //! Description
+function ldr_diameter(type)    = type[2]; //! The diameter of the round bit
+function ldr_width(type)       = type[3]; //! Across the flats
+function ldr_thickness(type)   = type[4]; //! Thickness
+function ldr_pitch(type)       = type[5]; //! Pitch between the leads
+function ldr_active(type)      = type[6]; //! The active width
+function ldr_lead_d(type)      = type[7]; //! The lead diameter
+
+module LDR(type, lead_length = 3) { //! Draw an LDR, can specify the lead length
+    vitamin(str("ldr(", type[0], "): Light dependent resistor - ", ldr_description(type)));
+
+    module shape()
+        intersection() {
+            circle(d = ldr_diameter(type));
+
+            square([100, ldr_width(type)], center = true);
+        }
+
+    function serpentine_t() = let(w = ldr_width(type), n = floor(w / 0.5) + 0.5) w / (n * 2);
+
+    module serpentine() {
+        w = ldr_width(type);
+
+        t = serpentine_t();
+        pitch = 2 * t;
+        l = ldr_active(type);
+        lines = ceil(w / pitch);
+
+        for(i = [0 : lines - 1])
+            translate([0, i * pitch - w / 2 + t / 2]) {
+                square([l - 3 * t, t], center = true);
+
+                end = i % 2 ? 1 : -1;
+                $fn = 16;
+                translate([end * (l / 2 - 1.5 * t), t])
+                    rotate(-end * 90)
+                    difference() {
+                        semi_circle(1.5 * t);
+
+                        semi_circle(t / 2);
+                    }
+            }
+    }
+
+    t = ldr_thickness(type);
+
+    color("white")
+        linear_extrude(height = t - 0.4)
+            shape();
+
+    color("orange")
+        translate_z(t - 0.4)
+            linear_extrude(height = 0.1)
+                shape();
+
+    color([0.9, 0.9, 0.9])
+        translate_z(t - 0.3)
+            linear_extrude(height = 0.1)
+                difference() {
+                    offset(-serpentine_t())
+                        shape();
+
+                serpentine();
+            }
+
+    color("silver")
+        for(side = [-1, 1])
+            translate([side * ldr_pitch(type) / 2, 0]) {
+                translate_z(-lead_length)
+                    cylinder(d = ldr_lead_d(type), h = lead_length, $fn = 16);
+
+                translate_z(t - 0.3)
+                    cylinder(d = 1.5 * ldr_lead_d(type), h = 0.2, $fn = 16);
+            }
+    color([1, 1, 1, 0.25])
+        translate_z(t - 0.3 + eps)
+            linear_extrude(height = 0.3)
+                shape();
+}

vitamins/ldrs.scad

@@ -0,0 +1,28 @@
+//
+// 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/>.
+//
+
+//
+// Light dependent resistors.
+//
+small_ldr = ["small_ldr", "small", 5,   4.2, 2.0, 3.2, 2.5, 0.4];
+large_ldr = ["large_ldr", "large", 9.2, 7.9, 2.0, 6.8, 4.5, 0.5];
+
+ldrs = [small_ldr, large_ldr];
+
+use <ldr.scad>

vitamins/microview.scad

@@ -43,14 +43,14 @@ module microview(cutout = false) {  //! Draw microview or generate a panel cutou
             translate_z(8.35) {
 
                 color("black")
-                    import("microview/GKM-002_R05_CHIP_UPPER_HOUSING-1.stl", convexity = 2);
+                    import("microview/GKM-002_R05_CHIP_UPPER_HOUSING-1.STL", convexity = 2);
 
                 translate([-2, 0, 0])
                     color("dimgray")
                         cube([12.5, 15.5, 4.41], center = true);
             }
             color("dimgray")
-                import("microview/GKM-003_R05_CHIP_LOWER_HOUSING.stl", convexity = 2);
+                import("microview/GKM-003_R05_CHIP_LOWER_HOUSING.STL", convexity = 2);
 
             for(side = [-1, 1], i = [0 : 7])
                 translate([side * inch(0.35), (i - 3.5) * inch(0.1)])

vitamins/nut.scad

@@ -58,7 +58,7 @@ module nut(type, nyloc = false, brass = false, nylon = false) { //! Draw specifi
                     rounded_cylinder(r = outer_rad * cos(30) , h = nyloc_thickness, r2 = (nyloc_thickness - thickness) / 2, ir = hole_rad);
         }
     if($children)
-        translate_z(thickness)
+        translate_z(nut_thickness(type, nyloc))
             children();
 }
 

vitamins/pcb.scad

@@ -667,6 +667,22 @@ module pcb_component(comp, cutouts = false, angle = undef) { //! Draw pcb compon
     }
 }
 
+module pcb_component_position(type, name) { //! Position child at the specified component position
+    for(comp = pcb_components(type)) {
+        p = pcb_coord(type, [comp.x, comp.y]);
+        if(comp[3][0] == "-") {
+            if(comp[3] == str("-", name))
+                translate([p.x, p.y])
+                    vflip()
+                        children();
+        }
+        else
+            if(comp[3] == name)
+                translate([p.x, p.y, pcb_thickness(type)])
+                    children();
+    }
+}
+
 module pcb_components(type, cutouts = false, angle = undef) { //! Draw list of PCB components on the PCB
     not_on_bom(pcb_parts_on_bom(type))
         for(comp = pcb_components(type)) {
@@ -750,14 +766,19 @@ module pcb(type) { //! Draw specified PCB
                 }
 }
 
-module pcb_spacer(screw, height, wall = 1.8) { //! Generate STL for PCB spacer
-    stl(str("pcb_spacer", round(screw_radius(screw) * 20), round(height * 10)));
+module pcb_spacer(screw, height, wall = 1.8, taper = 0) { //! Generate STL for PCB spacer
+    stl(str("pcb_spacer", round(screw_radius(screw) * 20), round(height * 10), taper ? str("_", taper) : ""));
 
     ir = screw_clearance_radius(screw);
     or = corrected_radius(ir) + wall;
 
-    linear_extrude(height = height)
-        poly_ring(or, ir);
+    if(height > taper)
+        linear_extrude(height = height - taper)
+            poly_ring(or, ir);
+
+    if(taper)
+        linear_extrude(height = height)
+            poly_ring(ir + 2 * extrusion_width, ir);
 }
 
 module pcb_base(type, height, thickness, wall = 2) { //! Generate STL for a base with PCB spacers
@@ -798,12 +819,8 @@ module pcb_assembly(type, height, thickness) { //! Draw PCB assembly with spaces
                 screw(screw, screw_length);
 
             color(pp1_colour)
-                if(taper) {
-                    h2 = max(0,  height - 2);
-                    if(h2)
-                        pcb_spacer(screw, h2);
-                    pcb_spacer(screw, height, 2 * extrusion_width); // Thin as can be at the top because there is no clearance around the holes.
-                }
+                if(taper)
+                    pcb_spacer(screw, height, taper = 2);
                 else
                     pcb_spacer(screw, height);
 

vitamins/pcbs.scad

@@ -275,6 +275,10 @@ PI_IO = ["PI_IO", "PI_IO V2",       35.56, 25.4, 1.6, 0,    0,   0, "green", tru
      [(3.4   - 2.7) * 25.4,          (4.5 - 4.15)  * 25.4,  0, "2p54socket", 13, 2, true],
     ], []];
 
+ZC_A0591 = ["ZC_A0591", "ZC-A0591 ULN2003 driver PCB", 35, 32, 1.6, 0, 2.5, 0, "green", false, [[2.25, 3.25], [-2.25, 3.25], [2.25, -3.25], [-2.25, -3.25] ],
+    [], [], [], [], M2p5_pan_screw];
+
+
 PERF80x20 = ["PERF80x20", "Perfboard 80 x 20mm", 80, 20, 1.6, 0, 2.3, 0, "green", true, [[2,2],[-2,2],[2,-2],[-2,-2]], [], [], [5.87, 3.49]];
 
 PERF70x50 = ["PERF70x50", "Perfboard 70 x 50mm", 70, 50, 1.6, 0, 2.3, 0, "green", true, [[2,2],[-2,2],[2,-2],[-2,-2]], [], [], [5.87, 3.49]];
@@ -287,6 +291,6 @@ PERF74x51 = ["PERF74x51", "Perfboard 74 x 51mm", 74, 51, 1.0, 0, 3.0, 0, "sienna
 
 PSU12V1A = ["PSU12V1A", "PSU 12V 1A", 67, 31, 1.7, 0, 3.9, 0, "green", true, [[3.5, 3.5], [-3.5, 3.5], [-3.5, -3.5], [3.5, -3.5]], [], []];
 
-pcbs = [ExtruderPCB, PI_IO, RPI3, ArduinoUno3, Keyes5p1, PERF80x20, PERF70x50, PERF70x30, PERF60x40, PERF74x51, PSU12V1A, DuetE, Duex2, Duex5, Melzi];
+pcbs = [ExtruderPCB, PI_IO, RPI3, ArduinoUno3, Keyes5p1, PERF80x20, PERF70x50, PERF70x30, PERF60x40, PERF74x51, PSU12V1A, DuetE, Duex2, Duex5, Melzi, ZC_A0591];
 
 use <pcb.scad>

vitamins/ring_terminals.scad

@@ -20,15 +20,16 @@
 //
 // Ring terminals
 //
-//                            o  i   l  w    h    t  s
-//                            d  d   e  i    o    h  c
-//                                   n  d    l    i  r
-//                                   g  t    e    c  e
-//                                   t  h         k  w
-//                                   h
+//                                  o  i   l  w    h    t  s
+//                                  d  d   e  i    o    h  c
+//                                         n  d    l    i  r
+//                                         g  t    e    c  e
+//                                         t  h         k  w
+//                                         h
 //
-M3_ringterm = ["M3_ringterm", 6, 3, 12, 3, 1.5, 0.2, M3_dome_screw];
+M3_ringterm    = ["M3_ringterm",    6, 3, 12, 3, 1.5, 0.2, M3_dome_screw];
+M3_ringterm_cs = ["M3_ringterm_cs", 6, 3, 12, 3, 1.5, 0.2, M3_cap_screw];
 
-ring_terminals = [M3_ringterm];
+ring_terminals = [M3_ringterm, M3_ringterm_cs];
 
 use <ring_terminal.scad>

vitamins/rod.scad

@@ -18,13 +18,14 @@
 //
 
 //
-//! Steel rods, with optional chamfer.
+//! Steel rods and studding with chamfered ends.
 //
 include <../core.scad>
 
 rod_colour = grey80;
+studding_colour = grey70;
 
-module rod(d , l) {
+module rod(d , l) { //! Draw a smooth rod with specified length and diameter
     vitamin(str("rod(", d, ", ", l, "): Smooth rod ", d, "mm x ", l, "mm"));
 
     chamfer = d / 10;
@@ -35,3 +36,15 @@ module rod(d , l) {
             cylinder(d = d - 2 * chamfer, h = l, center = true);
         }
 }
+
+module studding(d , l) { //! Draw a threaded rod with specified length and diameter
+    vitamin(str("studding(", d, ", ", l,"): Threaded rod M", d, " x ", l, "mm"));
+
+    chamfer = d / 20;
+    color(studding_colour)
+        hull() {
+            cylinder(d = d, h = l - 2 * chamfer, center = true);
+
+            cylinder(d = d - 2 * chamfer, h = l, center = true);
+        }
+}

vitamins/sheet.scad

@@ -74,7 +74,7 @@ module sheet_2D(type, w, d, corners = [0, 0, 0, 0]) { //! 2D sheet template with
     }
 }
 
-module sheet(type, w, d, corners = [0, 0, 0, 0]) //! Draw speified sheet
+module sheet(type, w, d, corners = [0, 0, 0, 0]) //! Draw specified sheet
     linear_extrude(height = sheet_thickness(type), center = true)
         sheet_2D(type, w, d, corners);
 

vitamins/sheets.scad

@@ -31,6 +31,7 @@ MDF10     = [ "MDF10",     "Sheet MDF",              10, mdf_colour,
 MDF12     = [ "MDF12",     "Sheet MDF",              12, mdf_colour,             true];    // ~1/2"
 MDF18     = [ "MDF18",     "Sheet MDF",              18, mdf_colour,             true];
 MDF19     = [ "MDF19",     "Sheet MDF",              19, mdf_colour,             true];    // ~3/4"
+PMMA2     = [ "PMMA2",     "Sheet acrylic",           2, [1,   1,   1,   0.5  ], false];
 PMMA3     = [ "PMMA3",     "Sheet acrylic",           3, [1,   1,   1,   0.5  ], false];   // ~1/8"
 PMMA6     = [ "PMMA6",     "Sheet acrylic",           6, [1,   1,   1,   0.5  ], false];   // ~1/4"
 PMMA8     = [ "PMMA8",     "Sheet acrylic",           8, [1,   1,   1,   0.5  ], false];   // ~5/16"
@@ -45,6 +46,6 @@ AL6       = [ "AL6",       "Aluminium tooling plate", 6, [0.9, 0.9, 0.9, 1    ],
 AL8       = [ "AL8",       "Aluminium tooling plate", 8, [0.9, 0.9, 0.9, 1    ], false];
 Steel06   = [ "Steel06",   "Sheet mild steel",       0.6,"silver"              , false];
 
-sheets = [MDF6, MDF10, MDF12, MDF19, PMMA3, PMMA6, PMMA8, PMMA10, glass2, DiBond, DiBond6, Cardboard, FoilTape, Foam20, AL6, AL8, Steel06];
+sheets = [MDF6, MDF10, MDF12, MDF19, PMMA2, PMMA3, PMMA6, PMMA8, PMMA10, glass2, DiBond, DiBond6, Cardboard, FoilTape, Foam20, AL6, AL8, Steel06];
 
 use <sheet.scad>

vitamins/spool.scad

@@ -30,6 +30,7 @@ function spool_hub_bore(type)      = type[6]; //! Bore through the hub
 function spool_hub_diameter(type)  = type[7]; //! Diameter of the thicker hub
 function spool_hub_taper(type)     = type[8]; //! Diameter at which it tapers down to rim thickness
 function spool_height(type)        = spool_width(type) + 2 * spool_hub_thickness(type); //! Outside width
+function spool_pitch(type)         = spool_width(type) + spool_rim_thickness(type); //! Spacing of the rims
 
 module spool(type) { //! Draw specified spool
     vitamin(str("spool(", type[0], "): Filament spool ", spool_diameter(type), " x ", spool_width(type)));

vitamins/spools.scad

@@ -23,10 +23,11 @@
 //                              i    i   e   i  u  o   u    u
 //                              a    d   p   m  b  r   b    b
 //                                   t   t         e
-//                                   h   h   t  t      d    t
+//                                   h   h   t  t      d    taper_d
+spool_300x88 = ["spool_300x88", 300, 88, 43, 6, 8, 52, 214, 300];
 spool_300x85 = ["spool_300x85", 300, 85, 60, 4, 8, 52, 250, 280];
 spool_200x55 = ["spool_200x55", 200, 55, 40, 5, 5, 52, 200, 200];
 
-spools = [spool_200x55, spool_300x85];
+spools = [spool_200x55, spool_300x85, spool_300x88];
 
 use <spool.scad>

vitamins/toggles.scad

@@ -33,7 +33,7 @@ MS332F_pin = [4.0 , 1.0,  1.0,  4.7, 4.83];
 
 //                               w     l     d    t    i      c   od  id thread      pv     a    tl     pd    pw
 CK7101 = ["CK7101", "CK7101", 6.86, 12.7, 8.89, 0.4, 1.7, "red", 6.1, 4, 8.89, 0, 0, 4.45, 25/2, 10.67, 2.92, 0,   toggle_nut, toggle_washer, 3, CK7000_tag];
-CK7105 = ["CK7105", "CK7101", 6.86, 12.7, 8.89, 0.4, 1.7, "red", 6.1, 4, 8.89, 0, 0, 4.45,-25/2, 21.33, 5.08, 2.54,toggle_nut, toggle_washer, 3, CK7000_pin];
+CK7105 = ["CK7105", "CK7105", 6.86, 12.7, 8.89, 0.4, 1.7, "red", 6.1, 4, 8.89, 0, 0, 4.45,-25/2, 21.33, 5.08, 2.54,toggle_nut, toggle_washer, 3, CK7000_pin];
 
 AP5236 = ["AP5236", "AP5236", 7.0,  13.6, 11,   0.4, 1.7, "blue",6.1, 4, 8.0 , 8, 1, 3.0 , 25/2, 22.2,  4.90, 2.50,toggle_nut, toggle_washer, 3, AP5236_pin];
 MS332F = ["MS332F", "MS332F", 12.6, 13.1, 9.5,  0.4, 1.7, "blue",6.1, 4, 8.0 , 8, 1, 4.0 , 25/2, 14.4,  5.0,  2.2 ,toggle_nut, toggle_washer, 6, MS332F_pin];

vitamins/wire.scad

@@ -46,10 +46,14 @@ function cable_bundle(cable) = //! Arrangement of a bundle in a flat cable clip
 function cable_width(cable)  = cable_bundle(cable)[0] * cable_wire_size(cable); //! Width in flat clip
 function cable_height(cable) = cable_bundle(cable)[1] * cable_wire_size(cable); //! Height in flat clip
 
-module mouse_hole(cable, h = 100) { //! A mouse hole to allow a panel to go over a wire bundle.
+module mouse_hole(cable, h = 100, teardrop = false) { //! A mouse hole to allow a panel to go over a wire bundle.
     r = wire_hole_radius(cable);
 
-    rotate(90) slot(r, 2 * r, h = h);
+        if(teardrop)
+            vertical_tearslot(r = r, l = 2 * r, h = h);
+        else
+            rotate(90)
+                slot(r, 2 * r, h = h);
 }
 
 module cable_tie_holes(cable_r, h = 100) { //! Holes to thread a ziptie through a panel to make a cable tie.