The assembly module now has a big parameter to force large or small views.

Made the ground surfaces of steppers lighter.
Fixed some more colour spellings
2025-09-04 04:35:29 +02:00 · 2020-04-04 12:06:14 +01:00 · 2020-04-02 19:54:30 +01:00 · 2020-03-29 21:36:11 +01:00 · 2020-03-29 20:39:17 +01:00 · 2020-03-29 20:18:57 +01:00
98 changed files with 469 additions and 402 deletions
--- a/global_defs.scad
+++ b/global_defs.scad
@@ -51,7 +51,7 @@ $fa = 6;
 $fs = extrusion_width / 2;

 function round_to_layer(z) = ceil(z / layer_height) * layer_height;
-// Some additional named colors
+// Some additional named colours
 grey20                          = [0.2, 0.2, 0.2];
 grey30                          = [0.3, 0.3, 0.3];
 grey40                          = [0.4, 0.4, 0.4];
--- a/libtest.png
+++ b/libtest.png
--- a/libtest.scad
+++ b/libtest.scad
@@ -171,8 +171,8 @@ hot_ends_y = pulleys_y + 60;
 linear_bearings_y = hot_ends_y + 50;
 sheets_y = linear_bearings_y + 100;
 pcbs_y = sheets_y + 40;
-displays_y = pcbs_y + 150;
-fans_y = displays_y + 100;
+displays_y = pcbs_y + 170;
+fans_y = displays_y + 80;
 transformers_y = fans_y + 120;
 psus_y = transformers_y + 190;

@@ -380,7 +380,7 @@ translate([x4 + 150, belts_y + 58]) {
 translate([x4, rails_y + 130])
    rails();

-translate([800, fans_y])
+translate([800, fans_y + 50])
    cable_strips();

 translate([x4, kp_pillow_blocks_y])
--- a/printed/box.scad
+++ b/printed/box.scad
@@ -129,7 +129,7 @@ module box_corner_profile(type) { //! Generates the corner profile STL for 3D pr

    length = box_height(type) - 2 * box_margin(type);
    difference() {
-        linear_extrude(height = length, center = true, convexity = 5)
+        linear_extrude(length, center = true, convexity = 5)
            box_corner_profile_2D(type);

        for(z = [-1, 1])
@@ -148,24 +148,24 @@ module box_corner_profile_section(type, section, sections) { //! Generates inter

    difference() {
        union() {
-            linear_extrude(height = h, convexity = 5)
+            linear_extrude(h, convexity = 5)
                box_corner_profile_2D(type);

            if(!last_section)                              // male end always at the top
                translate_z(section_length - 1)
                    for(i = [0 : 1], offset = i * layer_height)
-                        linear_extrude(height = overlap + 1 - offset)
+                        linear_extrude(overlap + 1 - offset)
                            offset(1 + offset - layer_height)
                                offset(-overlap_wall - 1)
                                    box_corner_profile_2D(type);
        }
        if(section > 0)
            translate_z(last_section ? h : 0) {       // female at bottom unless last section
-                linear_extrude(height = 2 * (overlap + layer_height), center = true, convexity = 5)
+                linear_extrude(2 * (overlap + layer_height), center = true, convexity = 5)
                    offset(-overlap_wall)
                        box_corner_profile_2D(type);

-                linear_extrude(height = 2 * layer_height, center = true, convexity = 5)
+                linear_extrude(2 * layer_height, center = true, convexity = 5)
                    offset(-overlap_wall + layer_height)
                        box_corner_profile_2D(type);
            }
@@ -223,7 +223,7 @@ module box_bezel(type, bottom) { //! Generates top and bottom bezel STLs
        // slots for side panels
        //
        translate_z(-box_profile_overlap(type))
-            linear_extrude(height = 2 * box_profile_overlap(type), center = true)
+            linear_extrude(2 * box_profile_overlap(type), center = true)
                for(i = [-1, 1]) {
                    translate([i * (box_width(type) / 2 + t / 2 - sheet_slot_clearance / 2), 0])
                         square([t, box_depth(type) - 2 * box_corner_gap(type)], center = true);
@@ -240,7 +240,7 @@ module box_bezel(type, bottom) { //! Generates top and bottom bezel STLs
        // leave plastic over the corner profiles
        //
        translate_z(-box_profile_overlap(type) - 1)
-            linear_extrude(height = box_profile_overlap(type) + box_corner_gap(type) + 2)
+            linear_extrude(box_profile_overlap(type) + box_corner_gap(type) + 2)
                union() {
                    difference() {
                        square([box_width(type) - 2 * box_inset(type),
@@ -273,7 +273,7 @@ module box_bezel_section(type, bottom, rows, cols, x, y) { //! Generates interlo
    end_clearance = 0.5;
    module male() {
        rotate([90, 0, 90])
-            linear_extrude(height = dowel_length - 2 * end_clearance, center = true)
+            linear_extrude(dowel_length - 2 * end_clearance, center = true)
                difference() {
                    union() {
                        h = dh - layer_height;
--- a/printed/cable_grommets.scad
+++ b/printed/cable_grommets.scad
@@ -59,7 +59,7 @@ module ribbon_grommet(ways, thickness) { //! Generate the STL for a printed ribb
        union() {
            for(side = [-1, 1])
                translate_z(side * (width - wall) / 2)
-                    linear_extrude(height = wall, center = true, convexity = 5)
+                    linear_extrude(wall, center = true, convexity = 5)
                        difference() {
                            hull() {
                                translate([-length / 2, 0])
@@ -73,7 +73,7 @@ module ribbon_grommet(ways, thickness) { //! Generate the STL for a printed ribb
                                square([slot_length, slot_height]);
                        }

-            linear_extrude(height = width -1, center = true)
+            linear_extrude(width -1, center = true)
                difference() {
                    ribbon_grommet_hole(ways, expand = false, h = 0);

@@ -170,14 +170,14 @@ module mouse_grommet(r, thickness) { //! Make the STL for a mouse grommet
        union() {
            for(side = [-1, 1])
                translate_z(side * (width - wall) / 2)
-                    linear_extrude(height = wall, center = true)
+                    linear_extrude(wall, center = true)
                        difference() {
                            mouse_grommet_hole(r, z = r + wall, h = 0, expand = wall + overlap);

                        translate([0, wall])
                            mouse_grommet_hole(r, h = 0, expand = 0);
                    }
-            linear_extrude(height = width - 1, center = true)
+            linear_extrude(width - 1, center = true)
                difference() {
                    mouse_grommet_hole(r, h = 0, z = r + wall, expand = wall);

--- a/printed/carriers.scad
+++ b/printed/carriers.scad
@@ -24,6 +24,8 @@ $extrusion_width = 0.5;

 include <../utils/core/core.scad>

+function carrier_height() = 3; //! Height of PCB carrier
+
 module ESP12F_carrier_stl() { //! Generate the STL for an ESP12 carrier
    stl("ESP12F_carrier");
    pins = 8;
@@ -33,7 +35,7 @@ module ESP12F_carrier_stl() { //! Generate the STL for an ESP12 carrier
    hole2 = pitch2 - 3 * extrusion_width;
    length1 = (pins - 1) * pitch1 + hole + squeezed_wall * 2;
    length2 = (pins - 1) * pitch2 + hole + squeezed_wall * 2;
-    height = 3;
+    height = carrier_height();

    wpitch1 = (pins - 1) * pitch1;
    wpitch2 = ceil(wpitch1 / 2.54) * 2.54;
@@ -71,7 +73,7 @@ module TP4056_carrier_stl() { //! Generate the STL for an TP4056 carrier, two re
    pins = 6;
    length1 = outer_pitch + hole + squeezed_wall * 2;
    length2 = (pins - 1) * pitch + hole + squeezed_wall * 2;
-    height = 3;
+    height = carrier_height();

    width = hole + squeezed_wall * 2;
    spacing = inch(0.9);
@@ -106,7 +108,7 @@ module MT3608_carrier_stl() { //! Generate the STL for an MT3608 carrier, two re
    l_pitch_top = 30.855;
    l_pitch_bot = inch(1.2);
    hole = 1;
-    height = 3;
+    height = carrier_height();
    wall = 2 * extrusion_width;
    width = hole + 2 * wall;
    offset = (l_pitch_top - l_pitch_bot) / 2;
--- a/printed/door_hinge.scad
+++ b/printed/door_hinge.scad
@@ -60,7 +60,7 @@ module door_hinge(door_thickness) {                         //! Generates STL fo

    union() {
        rotate([90, 0, 0])
-            linear_extrude(height = width, center = true)
+            linear_extrude(width, center = true)
                difference() {
                    hull() {
                        translate([dia / 2, thickness + door_thickness / 2])
@@ -76,7 +76,7 @@ module door_hinge(door_thickness) {                         //! Generates STL fo
                    translate([dia / 2, thickness + door_thickness / 2])
                        teardrop(r = screw_clearance_radius(pin_screw), h = 0);
                }
-        linear_extrude(height = thickness)
+        linear_extrude(thickness)
            difference() {
                hull() {
                    translate([0, -width / 2])
@@ -108,7 +108,7 @@ module door_hinge_stat_stl() { //! Generates the STL for the stationary part
    stl("door_hinge_stat");

    union() {
-        linear_extrude(height = thickness)
+        linear_extrude(thickness)
            difference() {
                rounded_square([stat_length, stat_width], rad);

@@ -117,7 +117,7 @@ module door_hinge_stat_stl() { //! Generates the STL for the stationary part
            }

        rotate([90, 0, 0])
-            linear_extrude(height = stat_width, center = true)
+            linear_extrude(stat_width, center = true)
                difference() {
                    hull() {
                        translate([0, dia / 2 + stat_clearance])
--- a/printed/fixing_block.scad
+++ b/printed/fixing_block.scad
@@ -81,7 +81,7 @@ module fixing_block(screw = def_screw) { //! Generate the STL

    difference() {
        union() {
-            linear_extrude(height = fb_height, convexity = 5)
+            linear_extrude(fb_height, convexity = 5)
                difference() {
                    hull() {
                        for(side = [-1, 1]) {
--- a/printed/flat_hinge.scad
+++ b/printed/flat_hinge.scad
@@ -82,7 +82,7 @@ module hinge_male(type, female = false) {       //! The half with the stationary
    teardrop_r = kr / cos(22.5);                // The corner on the teardrop
    inset = sqrt(sqr(teardrop_r + gap) - sqr(kr - t)) - kr;

-    linear_extrude(height =t)
+    linear_extrude(t)
        difference() {
            hull() {
                for(side = [-1, 1])
@@ -102,7 +102,7 @@ module hinge_male(type, female = false) {       //! The half with the stationary
        rotate([90, 0, -90])
            for(z = [0 : (female ? fn : mn) - 1])
                translate_z(-dir * w / 2 + z * dir * pitch + (female ? -fw - mw - gap : 0))
-                    linear_extrude(height = female ? fw : mw)
+                    linear_extrude(female ? fw : mw)
                        difference() {
                            hull() {
                                rotate(180)
--- a/printed/foot.scad
+++ b/printed/foot.scad
@@ -56,7 +56,7 @@ module foot(type = foot) { //! Generate STL
                        circle4n(r);
            }
        }
-        linear_extrude(height = t)
+        linear_extrude(t)
            difference() {
                circle(r1 + eps);

@@ -116,7 +116,7 @@ module insert_foot(type = insert_foot) { //! Generate STL for foot with insert
                }
            }
        }
-        linear_extrude(height = h2 + eps)
+        linear_extrude(h2 + eps)
            difference() {
                circle(r5 + eps);

--- a/printed/pcb_mount.scad
+++ b/printed/pcb_mount.scad
@@ -62,7 +62,7 @@ module pcb_mount_ring()
    }

 module pcb_mount_washer_stl() //! A plastic washer to clamp a PCB
-    linear_extrude(height = washer_thickness)
+    linear_extrude(washer_thickness)
        pcb_mount_ring();

 module pcb_mount(pcb, height = 5, washers = true) { //! Make the STL of a pcb mount for the specified PCB.
@@ -85,10 +85,10 @@ module pcb_mount(pcb, height = 5, washers = true) { //! Make the STL of a pcb mo
            cube([pillar_x_pitch(pcb) - 2 * wall, frame_w, frame_t], center = true);

    pcb_mount_screw_positions(pcb)
-        linear_extrude(height = height)
+        linear_extrude(height)
            pcb_mount_ring();

-    linear_extrude(height = height + pcb_thickness(pcb) - layer_height)
+    linear_extrude(height + pcb_thickness(pcb) - layer_height)
        difference() {
            pcb_mount_screw_positions(pcb)
                pcb_mount_ring();
--- a/printed/printed_box.scad
+++ b/printed/printed_box.scad
@@ -129,7 +129,7 @@ module pbox_base(type) { //! Generate the STL for the base
    t = pbox_base(type);
    difference() {
        union() {
-            linear_extrude(height = t)
+            linear_extrude(t)
                offset(base_outset - 0.2)
                    pbox_inner_shape(type);

@@ -157,7 +157,7 @@ module pbox(type) { //! Generate the STL for the main case

    difference() {
        union() {
-            linear_extrude(height = total_height)
+            linear_extrude(total_height)
                offset(wall / 2) pbox_mid_shape(type);

            if($children > 2)
@@ -166,11 +166,11 @@ module pbox(type) { //! Generate the STL for the main case
        difference() {
            translate_z(top_thickness)
                union() {
-                    linear_extrude(height = height + eps)
+                    linear_extrude(height + eps)
                         offset(-wall / 2) pbox_mid_shape(type);

                     translate_z(height)                                     // Recess for the base
-                        linear_extrude(height = total_height - height)
+                        linear_extrude(total_height - height)
                            offset(base_outset)
                                pbox_inner_shape(type);
                }
@@ -181,11 +181,11 @@ module pbox(type) { //! Generate the STL for the main case
                        rounded_rectangle([pbox_width(type) + 2 * outset, pbox_depth(type) + 2 * outset, ledge_h], 1, center = false);

                        hull() {
-                            linear_extrude(height = ledge_h + eps)
+                            linear_extrude(ledge_h + eps)
                                offset(ledge_inset)
                                    pbox_inner_shape(type);

-                            linear_extrude(height = eps)
+                            linear_extrude(eps)
                                offset(ledge_outset)
                                     pbox_inner_shape(type);
                        }
--- a/printed/psu_shroud.scad
+++ b/printed/psu_shroud.scad
@@ -113,21 +113,21 @@ module psu_shroud(type, cable_d, name, cables = 1) { //! Generate the STL file f
    translate([centre_x, -centre_y]) {
        rounded_rectangle([depth - eps, width - eps, top], rad, center = false);

-        linear_extrude(height = height)
+        linear_extrude(height)
            difference() {
                shape();

                translate([depth / 2, width / 2 - 5])
                    square([2 * (depth - extent + terminal_clearance), 10], center = true);
        }
-        linear_extrude(height = height - terminal_block_height(tb) - psu_terminal_block_z(type) - terminal_clearance)
+        linear_extrude(height - terminal_block_height(tb) - psu_terminal_block_z(type) - terminal_clearance)
            shape();
    }
    // cable slots
    for(i = [0 : 1 : cables - 1])
        translate([centre_x - depth / 2 + wall / 2, -centre_y + (i - cables / 2 + 0.5) *  psu_shroud_cable_pitch(cable_d), height / 2])
            rotate([90, 0, 90])
-                linear_extrude(height = wall, center = true)
+                linear_extrude(wall, center = true)
                    difference() {
                        square([cable_d + eps, height], center = true);

--- a/printed/screw_knob.scad
+++ b/printed/screw_knob.scad
@@ -48,7 +48,7 @@ module screw_knob(screw) { //! Generate the STL for a knob to fit the specified
                rotate(45)
                    circle(r = nut_trap_radius(screw_nut(screw)), $fn = 6);
        }
-        linear_extrude(height = knob_thickness, convexity = 3)
+        linear_extrude(knob_thickness, convexity = 3)
            difference() {
                polygon(points = [for(a = [0 : 359]) [wave(a) * sin(a), wave(a) * cos(a)]]);

--- a/printed/socket_box.scad
+++ b/printed/socket_box.scad
@@ -52,12 +52,12 @@ module socket_box(type) { //! Generate STL of the backbox for the specified sock
    insert_hole_radius = insert_hole_radius(insert);

    difference() {
-        linear_extrude(height = height, convexity = 5)
+        linear_extrude(height, convexity = 5)
            face_plate(type);

        difference() {
            translate_z(base_thickness)
-                linear_extrude(height = height, convexity = 5)
+                linear_extrude(height, convexity = 5)
                     offset(-wall) offset(1) face_plate(type);

            for(side = [-1, 1])
--- a/printed/ssr_shroud.scad
+++ b/printed/ssr_shroud.scad
@@ -73,7 +73,7 @@ module ssr_shroud(type, cable_d, name) {    //! Generate the STL file for a spec
    translate([center_x, 0]) {
        rounded_rectangle([depth - eps, width - eps, top], rad, center = false);

-        linear_extrude(height = height) difference() {
+        linear_extrude(height) difference() {
            round(or = wall / 2 - eps, ir = 0) difference() {
                rounded_square([depth, width], rad);

@@ -91,7 +91,7 @@ module ssr_shroud(type, cable_d, name) {    //! Generate the STL file for a spec
    for(side = [-1, 1])
        translate([cable_x, side * (width / 2 - wall / 2), height / 2])
            rotate([90, 0, 0])
-                linear_extrude(height = wall, center = true)
+                linear_extrude(wall, center = true)
                    difference() {
                        square([cable_d + eps, height], center = true);

--- a/printed/strap_handle.scad
+++ b/printed/strap_handle.scad
@@ -77,7 +77,7 @@ module strap(length, type = strap) { //! Generate the STL for the rubber strap
    len = length - 2 * (wall + clearance);
    w = strap_width(type);

-    linear_extrude(height = strap_thickness(type), convexity = 3)
+    linear_extrude(strap_thickness(type), convexity = 3)
        difference() {
            rounded_square([len, w], w / 2 - eps);

@@ -119,12 +119,12 @@ module strap_end(type = strap) { //! Generate the STL for end piece
        }

    union() {
-        linear_extrude(height = z1)
+        linear_extrude(z1)
            with_hole()
                outer();

        translate_z(z1)
-            linear_extrude(height = strap_height(type) - z1)
+            linear_extrude(strap_height(type) - z1)
                difference() {
                    outer();

@@ -137,11 +137,11 @@ module strap_end(type = strap) { //! Generate the STL for end piece
                    }
                }

-        linear_extrude(height = strap_height(type) - layer_height)
+        linear_extrude(strap_height(type) - layer_height)
            with_hole()
                strap_boss_shape(type);

-        linear_extrude(height = z2)
+        linear_extrude(z2)
            with_hole()
                 offset(cnc_bit_r)
                    offset(-step - cnc_bit_r)
--- a/readme.md
+++ b/readme.md
@@ -1905,7 +1905,7 @@ PCBs and perfboard with optional components. The shape can be a rectangle with o
 | Module | Description |
 |:--- |:--- |
 | ```barrel_jack(cutout = false)``` | Draw barrel power jack |
-| ```buzzer(height, diameter, colour)``` | Draw PCB buzzer with specified height, diameter and color |
+| ```buzzer(height, diameter, colour)``` | Draw PCB buzzer with specified height, diameter and colour |
 | ```chip(length, width, thickness, colour, cutout = false)``` | Draw a coloured cube to represent a chip, or other rectangular component |
 | ```flat_flex(cutout = false)``` | Draw flat flexistrip connector as used on RPI0 |
 | ```flex(cutout = false)``` | Draw flexistrip connector |
@@ -1925,7 +1925,7 @@ PCBs and perfboard with optional components. The shape can be a rectangle with o
 | ```rj45(cutout = false)``` | Draw RJ45 Ethernet connector |
 | ```standoff(h, d, h2, d2)``` | Draw a standoff |
 | ```terminal_35(ways, colour = "blue")``` | Draw 3.5mm terminal block |
-| ```trimpot10(vertical, coutout = false)``` | Draw a ten turn trimpot |
+| ```trimpot10(vertical, cutout = false)``` | Draw a ten turn trimpot |
 | ```uSD(size, cutout = false)``` | Draw uSD socket |
 | ```usb_Ax1(cutout = false)``` | Draw USB type A single socket |
 | ```usb_Ax2(cutout = false)``` | Draw USB type A dual socket |
@@ -1991,7 +1991,7 @@ PCBs and perfboard with optional components. The shape can be a rectangle with o
 | Module | Description |
 |:--- |:--- |
 | ```barrel_jack(cutout = false)``` | Draw barrel power jack |
-| ```buzzer(height, diameter, colour)``` | Draw PCB buzzer with specified height, diameter and color |
+| ```buzzer(height, diameter, colour)``` | Draw PCB buzzer with specified height, diameter and colour |
 | ```chip(length, width, thickness, colour, cutout = false)``` | Draw a coloured cube to represent a chip, or other rectangular component |
 | ```flat_flex(cutout = false)``` | Draw flat flexistrip connector as used on RPI0 |
 | ```flex(cutout = false)``` | Draw flexistrip connector |
@@ -2011,7 +2011,7 @@ PCBs and perfboard with optional components. The shape can be a rectangle with o
 | ```rj45(cutout = false)``` | Draw RJ45 Ethernet connector |
 | ```standoff(h, d, h2, d2)``` | Draw a standoff |
 | ```terminal_35(ways, colour = "blue")``` | Draw 3.5mm terminal block |
-| ```trimpot10(vertical, coutout = false)``` | Draw a ten turn trimpot |
+| ```trimpot10(vertical, cutout = false)``` | Draw a ten turn trimpot |
 | ```uSD(size, cutout = false)``` | Draw uSD socket |
 | ```usb_Ax1(cutout = false)``` | Draw USB type A single socket |
 | ```usb_Ax2(cutout = false)``` | Draw USB type A dual socket |
@@ -2033,6 +2033,7 @@ PCBs and perfboard with optional components. The shape can be a rectangle with o
 |   1 | ```pcb(EnviroPlus)``` |  Enviro+ |
 |   1 | ```pcb(ExtruderPCB)``` |  Extruder connection PCB |
 |   1 | ```pcb(Keyes5p1)``` |  Keyes5.1 Arduino Uno expansion board |
+|   1 | ```pcb(MT3608)``` |  MT3608 boost converter module |
 |   1 | ```pcb(Melzi)``` |  Melzi electronics |
 |   4 |  |  Micro SD card |
 |   1 | ```molex_254(2)``` |  Molex KK header 2 way |
@@ -2052,15 +2053,20 @@ PCBs and perfboard with optional components. The shape can be a rectangle with o
 |   1 | ```pcb(RAMPSEndstop)``` |  RAMPS Endstop Switch |
 |   1 | ```pcb(RPI3)``` |  Raspberry Pi 3 |
 |   1 | ```pcb(RPI0)``` |  Raspberry Pi Zero |
-|  16 | ```screw(M2_cap_screw, 25)``` |  Screw M2 cap x 25mm |
+|  12 | ```screw(M2_cap_screw, 16)``` |  Screw M2 cap x 16mm |
+|   4 | ```screw(M2_cap_screw, 20)``` |  Screw M2 cap x 20mm |
 |   2 | ```screw(M2p5_cap_screw, 16)``` |  Screw M2.5 cap x 16mm |
-|  12 | ```screw(M2p5_cap_screw, 20)``` |  Screw M2.5 cap x 20mm |
+|   4 | ```screw(M2p5_cap_screw, 20)``` |  Screw M2.5 cap x 20mm |
+|   4 | ```screw(M2p5_cap_screw, 25)``` |  Screw M2.5 cap x 25mm |
+|   4 | ```screw(M2p5_cap_screw, 30)``` |  Screw M2.5 cap x 30mm |
 |   4 | ```screw(M2p5_pan_screw, 20)``` |  Screw M2.5 pan x 20mm |
-|   8 | ```screw(M2p5_pan_screw, 25)``` |  Screw M2.5 pan x 25mm |
-|   4 | ```screw(M2p5_pan_screw, 35)``` |  Screw M2.5 pan x 35mm |
-|   8 | ```screw(M3_cap_screw, 30)``` |  Screw M3 cap x 30mm |
+|  12 | ```screw(M2p5_pan_screw, 25)``` |  Screw M2.5 pan x 25mm |
+|   4 | ```screw(M3_cap_screw, 16)``` |  Screw M3 cap x 16mm |
+|   4 | ```screw(M3_cap_screw, 30)``` |  Screw M3 cap x 30mm |
 |   4 | ```screw(M3_cap_screw, 35)``` |  Screw M3 cap x 35mm |
-|  12 | ```screw(M4_cap_screw, 35)``` |  Screw M4 cap x 35mm |
+|   8 | ```screw(M4_cap_screw, 30)``` |  Screw M4 cap x 30mm |
+|   4 | ```screw(M4_cap_screw, 35)``` |  Screw M4 cap x 35mm |
+|   1 | ```pcb(TP4056)``` |  TP4056 Li-lon Battery charger module |
 |   3 | ```terminal_35(2)``` |  Terminal block 2 way 3.5mm |
 |   2 | ```green_terminal(gt_2p54, 4)``` |  Terminal block 4 way 0.1" |
 |   1 |  |  USB A to Mini B lead |
@@ -2073,24 +2079,24 @@ PCBs and perfboard with optional components. The shape can be a rectangle with o
 ### Printed
 | Qty | Filename |
 | ---:|:--- |
-|   4 | pcb_spacer20140.stl |
-|   4 | pcb_spacer20150.stl |
-|   4 | pcb_spacer20160.stl |
-|   4 | pcb_spacer20170.stl |
+|   4 | pcb_spacer2060.stl |
+|   4 | pcb_spacer2070.stl |
+|   4 | pcb_spacer2080.stl |
+|   4 | pcb_spacer2090.stl |
 |   4 | pcb_spacer25100.stl |
-|   4 | pcb_spacer25110_2.stl |
-|   4 | pcb_spacer25120_2.stl |
+|   4 | pcb_spacer25110.stl |
+|   4 | pcb_spacer25120.stl |
 |   4 | pcb_spacer25130_2.stl |
-|   4 | pcb_spacer25240.stl |
-|   2 | pcb_spacer2550.stl |
-|   4 | pcb_spacer2580.stl |
-|   4 | pcb_spacer2590.stl |
-|   4 | pcb_spacer30180.stl |
-|   4 | pcb_spacer30190.stl |
-|   4 | pcb_spacer30230.stl |
+|   4 | pcb_spacer25140_2.stl |
+|   4 | pcb_spacer25150_2.stl |
+|   4 | pcb_spacer25170.stl |
+|   2 | pcb_spacer2570.stl |
+|   4 | pcb_spacer30160.stl |
+|   4 | pcb_spacer30210.stl |
+|   4 | pcb_spacer3050.stl |
+|   4 | pcb_spacer40180.stl |
+|   4 | pcb_spacer40190.stl |
 |   4 | pcb_spacer40200.stl |
-|   4 | pcb_spacer40210.stl |
-|   4 | pcb_spacer40220.stl |


 <a href="#top">Top</a>
@@ -2381,10 +2387,10 @@ Linear rails with carriages.
 ### Modules
 | Module | Description |
 |:--- |:--- |
-| ```carriage(type, rail, end_color = grey20, wiper_color = grey20)``` | Draw the specified carriage |
+| ```carriage(type, rail, end_colour = grey20, wiper_colour = grey20)``` | Draw the specified carriage |
 | ```carriage_hole_positions(type)``` | Position children over screw holes |
 | ```rail(type, length)``` | Draw the specified rail |
-| ```rail_assembly(type, length, pos, carriage_end_color = grey20, carriage_wiper_color = grey20)``` | Rail and carriage assembly |
+| ```rail_assembly(type, length, pos, carriage_end_colour = grey20, carriage_wiper_colour = grey20)``` | Rail and carriage assembly |
 | ```rail_hole_positions(type, length, first = 0, screws = 100, both_ends = true)``` | Position children over screw holes |
 | ```rail_screws(type, length, thickness, screws = 100)``` | Place screws in the rail |

@@ -2743,7 +2749,7 @@ The "Soft" parameter can be used to determinesif the sheet material needs machin
 * If soft, wood screws will be used, with a pilot hole.
 * If not soft, either tapped holes or a clearance hole and nuts will be used to retain screws.

-The "Color" parameter is a quad-array: [R, G, B, Alpha], or can be a named color, see [OpenSCAD_User_Manual](https://en.wikibooks.org/wiki/OpenSCAD_User_Manual/The_OpenSCAD_Language#color).
+The "Colour" parameter is a quad-array: [R, G, B, Alpha], or can be a named colour, see [OpenSCAD_User_Manual](https://en.wikibooks.org/wiki/OpenSCAD_User_Manual/The_OpenSCAD_Language#color).

 For speed sheets should be modelled in 2D by subtracting holes from 2D templates made by ```sheet_2D()``` and then extruded to 3D with ```render_2D_sheet()```.
 Note that modules that drill holes will return a 2D object if ```h``` is set to 0 to facilitate this.
@@ -2765,8 +2771,8 @@ Note that modules that drill holes will return a 2D object if ```h``` is set to
 ### Modules
 | Module | Description |
 |:--- |:--- |
-| ```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 |
+| ```render_2D_sheet(type, colour = false)``` | Extrude a 2D sheet template and give it the correct colour |
+| ```render_sheet(type, colour = false)``` | Render a sheet in the correct colour after holes have been subtracted |
 | ```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 |

@@ -3486,7 +3492,7 @@ Just a BOM entry at the moment and cable bundle size functions for holes, plus c
 | ```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, 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 |
+| ```wire(colour, strands, length, strand = 0.2)``` | Add stranded wire to the BOM |

 ![wire](tests/png/wire.png)

@@ -3800,6 +3806,11 @@ Adapts ESP12 modules and various small PCBs to 0.1" grid. See <https://hydrarapt

 [tests/carriers.scad](tests/carriers.scad) Code for this example.

+### Functions
+| Function | Description |
+|:--- |:--- |
+| ```carrier_height()``` | Height of PCB carrier |
+
 ### Modules
 | Module | Description |
 |:--- |:--- |
@@ -5163,8 +5174,12 @@ Simple tube or ring
 Bill Of Materials generation via echo and the ```bom.py``` script. Also handles exploded assembly views and posing. Assembly instructions can precede the module
 definition that makes the assembly.

-The example below shows how to define a vitamin and incorporate it into an assembly with sub-assemblies and make an exploded view. The resulting flat BOM is shown but
-heirachical BOMs are also generated for real projects.
+Assembly views shown in the instructions can be large or small and this is deduced by looking at the size of the printed parts involved and if any routed
+parts are used.
+This heuristic isn't always correct, so the default can be overridden by setting the ```big``` parameter of ```assembly``` to ```true``` or ```false```.
+
+The example below shows how to define a vitamin and incorporate it into an assembly with sub-assemblies and make an exploded view.
+The resulting flat BOM is shown but heirachical BOMs are also generated for real projects.


 [utils/core/bom.scad](utils/core/bom.scad) Implementation.
@@ -5183,7 +5198,7 @@ heirachical BOMs are also generated for real projects.
 ### Modules
 | Module | Description |
 |:--- |:--- |
-| ```assembly(name)``` | Name an assembly that will appear on the BOM, there needs to a module named ```<name>_assembly``` to make it |
+| ```assembly(name, big = undef)``` | Name an assembly that will appear on the BOM, there needs to a module named ```<name>_assembly``` to make it. ```big``` can force big or small assembly diagrams. |
 | ```dxf(name)``` | Name a dxf that will appear on the BOM, there needs to a module named ```<name>_dxf``` to make it |
 | ```explode(d, explode_children = false, offset = [0,0,0])``` | Explode children by specified Z distance or vector ```d```, option to explode grand children |
 | ```hidden()``` | Make item invisible, except on the BOM |
--- a/scripts/bom.py
+++ b/scripts/bom.py
@@ -29,6 +29,7 @@ import openscad
 from time import *
 from set_config import *
 import json
+import re

 def find_scad_file(mname):
    for filename in os.listdir(source_dir):
@@ -48,6 +49,7 @@ def find_scad_file(mname):
 class BOM:
    def __init__(self, name):
        self.name = name
+        self.big = None
        self.count = 1
        self.vitamins = {}
        self.printed = {}
@@ -60,6 +62,7 @@ class BOM:
            assemblies[ass] = self.assemblies[ass].count
        return {
             "name"       : self.name,
+             "big"        : self.big,
             "count"      : self.count,
             "assemblies" : assemblies,
             "vitamins"   : self.vitamins,
@@ -80,11 +83,15 @@ class BOM:
        else:
            parts[s] = 1

-    def add_assembly(self, ass):
+    def add_assembly(self, ass, args = []):
        if ass in self.assemblies:
            self.assemblies[ass].count += 1
        else:
-            self.assemblies[ass] = BOM(ass)
+            bom = BOM(ass)
+            for arg in args:
+                arg = arg.replace('true',  'True').replace('false', 'False').replace('undef', 'None')
+                exec('bom.' + arg, locals())
+            self.assemblies[ass] = bom

    def make_name(self, ass):
        if self.count == 1:
@@ -161,17 +168,22 @@ def parse_bom(file = "openscad.log", name = None):
    main = BOM(name)
    main.ordered_assemblies = []
    stack = []
-
+    prog = re.compile(r'^(.*)\((.*)\)$')
    for line in open(file):
        pos = line.find('ECHO: "~')
        if pos > -1:
            s = line[pos + 8 : line.rfind('"')]
            if s[-1] == '{':
                ass = s[:-1]
+                args = []
+                match = prog.match(ass)                             #look for (...)
+                if match:
+                    ass = match.group(1)
+                    args = match.group(2).split(',')
                if stack:
                    main.assemblies[stack[-1]].add_assembly(ass)    #add to nested BOM
                stack.append(ass)
-                main.add_assembly(ass)                              #add to flat BOM
+                main.add_assembly(ass, args)                        #add to flat BOM
                if ass in main.ordered_assemblies:
                    main.ordered_assemblies.remove(ass)
                main.ordered_assemblies.insert(0, ass)
--- a/scripts/views.py
+++ b/scripts/views.py
@@ -52,22 +52,23 @@ def bom_to_assemblies(bom_dir, bounds_map):
    # Decide if we need big or small assembly pictures
    #
    for bom in flat_bom:
-        big = False
-        for ass in bom["assemblies"]:
-            for b in flat_bom:
-                if b["name"] == ass:
-                    if b["big"]:
+        if  bom["big"] == None:
+            big = False
+            for ass in bom["assemblies"]:
+                for b in flat_bom:
+                    if b["name"] == ass:
+                        if b["big"]:
+                            big = True
+                        break
+            if not big:
+                for stl in bom["printed"]:
+                    bounds = bounds_map[stl]
+                    width = bounds[1][0] - bounds[0][0]
+                    depth = bounds[1][1] - bounds[0][1]
+                    if max(width, depth) > 80:
                        big = True
-                    break
-        if not big:
-            for stl in bom["printed"]:
-                bounds = bounds_map[stl]
-                width = bounds[1][0] - bounds[0][0]
-                depth = bounds[1][1] - bounds[0][1]
-                if max(width, depth) > 80:
-                    big = True
-                    break
-        bom["big"] = big or bom["routed"]
+                        break
+            bom["big"] = big or bom["routed"]
    #
    # Remove the main assembly if it is a shell
    #
--- a/tests/PCBs.scad
+++ b/tests/PCBs.scad
@@ -21,11 +21,16 @@ include <../vitamins/pcbs.scad>

 use <../utils/layout.scad>

-module pcbs()
+module pcbs() {
    layout([for(p = pcbs) pcb_width(p)], 10)
        translate([0, pcb_length(pcbs[$i]) / 2])
            rotate(90)
                pcb_assembly(pcbs[$i], 5 + $i, 3);

+    translate([0, 120])
+        layout([for(p = perfboards) pcb_length(p)], 10)
+            translate([0, -pcb_width(perfboards[$i]) / 2])
+                pcb_assembly(perfboards[$i], 5 + $i, 3);
+}
 if($preview)
    pcbs();
--- a/tests/dogbones.scad
+++ b/tests/dogbones.scad
@@ -20,7 +20,7 @@ include <../global_defs.scad>
 use <../utils/dogbones.scad>

 module dogbones() {
-    #linear_extrude(height = eps)
+    #linear_extrude(eps)
        dogbone_square([10, 20]);

    #translate([15, 0])
--- a/tests/global.scad
+++ b/tests/global.scad
@@ -20,7 +20,7 @@
 include <../utils/core/core.scad>

 module globals() {
-    linear_extrude(height = eps) {
+    linear_extrude(eps) {
        semi_circle(r = 10);

        translate([30, 0])
--- a/tests/layout.scad
+++ b/tests/layout.scad
@@ -22,7 +22,7 @@ use <../utils/layout.scad>
 diams = [3, 7, 5, 11];

 module layouts() {
-    linear_extrude(height = eps)
+    linear_extrude(eps)
        layout(diams, gap = 1)
            circle(d = diams[$i]);
 }
--- a/tests/png/pcbs.png
+++ b/tests/png/pcbs.png
--- a/tests/png/spools.png
+++ b/tests/png/spools.png
--- a/tests/png/stepper_motors.png
+++ b/tests/png/stepper_motors.png
--- a/tests/polyholes.scad
+++ b/tests/polyholes.scad
@@ -34,7 +34,7 @@ module polyholes() {
                        children();
        }

-    color(pp1_colour) linear_extrude(height = 3, center = true)
+    color(pp1_colour) linear_extrude(3, center = true)
        difference() {
            square([100, 27]);

--- a/tests/quadrant.scad
+++ b/tests/quadrant.scad
@@ -22,7 +22,7 @@ use <../utils/quadrant.scad>


 module quadrants() {
-    linear_extrude(height = eps)
+    linear_extrude(eps)
        quadrant(10, 4);
 }

--- a/tests/round.scad
+++ b/tests/round.scad
@@ -28,14 +28,14 @@ module shape()
    }

 module rounds() {
-    linear_extrude(height = eps)
+    linear_extrude(eps)
        round(or = 4, ir = 2)
            shape();


    translate([50, 0])
        round_3D(or = 4, ir = 2, chamfer_base = true, $fn = 16)
-            linear_extrude(height = 40, center = true)
+            linear_extrude(40, center = true)
                shape();
 }

--- a/tests/rounded_cylinder.scad
+++ b/tests/rounded_cylinder.scad
@@ -22,7 +22,7 @@ use <../utils/rounded_cylinder.scad>


 module rounded_cylinders() {
-    linear_extrude(height = eps)
+    linear_extrude(eps)
        rounded_corner(10, 20, 3, 5);

    translate([30, 10])
--- a/tests/rounded_polygon.scad
+++ b/tests/rounded_polygon.scad
@@ -46,7 +46,7 @@ module rounded_polygons() {
    length = rounded_polygon_length(profile, tangents);

    rotate([70, 0, 315])
-        linear_extrude(height = eps)
+        linear_extrude(eps)
            rounded_polygon(profile, tangents);

    translate([0, -10])
--- a/tests/rounded_rectangle.scad
+++ b/tests/rounded_rectangle.scad
@@ -20,7 +20,7 @@
 include <../utils/core/core.scad>

 module rounded_rectangles() {
-    linear_extrude(height = eps)
+    linear_extrude(eps)
        rounded_square([30, 20], 3);

    translate([40, 0])
--- a/tests/sector.scad
+++ b/tests/sector.scad
@@ -22,7 +22,7 @@ use <../utils/sector.scad>


 module sectors() {
-    linear_extrude(height = eps)
+    linear_extrude(eps)
        sector(50, 45, 180);
 }

--- a/tests/teardrops.scad
+++ b/tests/teardrops.scad
@@ -23,7 +23,7 @@ module teardrops() {
    color(pp1_colour)
        rotate([90, 0, -45])
            difference() {
-                linear_extrude(height = 3) {
+                linear_extrude(3) {
                    difference() {
                        square([80, 40]);

--- a/tests/tube.scad
+++ b/tests/tube.scad
@@ -22,7 +22,7 @@ use <../utils/tube.scad>


 module tubes() {
-    linear_extrude(height = eps)
+    linear_extrude(eps)
        ring(10, 8);

    translate([50, 10])
--- a/tests/wire.scad
+++ b/tests/wire.scad
@@ -56,7 +56,7 @@ module wires() {

    color(pp1_colour) {
        rotate([90, 0, 90])
-            linear_extrude(height = thickness)
+            linear_extrude(thickness)
                difference() {
                    translate([-w / 2, 0])
                        square([w, h]);
@@ -65,7 +65,7 @@ module wires() {
                }

        translate_z(-thickness)
-            linear_extrude(height = thickness)
+            linear_extrude(thickness)
                difference() {
                    translate([thickness -d, -w / 2])
                        square([d, w]);
--- a/utils/annotation.scad
+++ b/utils/annotation.scad
@@ -26,7 +26,7 @@ include <../utils/core/core.scad>
 module label(str, scale = 0.25, valign = "baseline", halign = "left") //! Draw text that always faces the camera
    color("black")
        %rotate($vpr != [0, 0, 0] ? $vpr : [70, 0, 315])
-            linear_extrude(height = eps)
+            linear_extrude(eps)
                scale(scale)
                    text(str, valign = valign, halign = halign);

--- a/utils/core/bom.scad
+++ b/utils/core/bom.scad
@@ -21,8 +21,12 @@
 //! Bill Of Materials generation via echo and the ```bom.py``` script. Also handles exploded assembly views and posing. Assembly instructions can precede the module
 //! definition that makes the assembly.
 //!
-//! The example below shows how to define a vitamin and incorporate it into an assembly with sub-assemblies and make an exploded view. The resulting flat BOM is shown but
-//! heirachical BOMs are also generated for real projects.
+//! Assembly views shown in the instructions can be large or small and this is deduced by looking at the size of the printed parts involved and if any routed
+//! parts are used.
+//! This heuristic isn't always correct, so the default can be overridden by setting the ```big``` parameter of ```assembly``` to ```true``` or ```false```.
+//!
+//! The example below shows how to define a vitamin and incorporate it into an assembly with sub-assemblies and make an exploded view.
+//! The resulting flat BOM is shown but heirachical BOMs are also generated for real projects.
 //
 function bom_mode(n = 1) = $_bom >= n && (is_undef($on_bom) || $on_bom);  //! Current BOM mode, 0 = none, 1 = printed and routed parts and assemblies, 2 includes vitamins as well
 function exploded() = is_undef($exploded_parent) ? $exploded : 0;   //! Returns the value of ```$exploded``` if it is defined, else ```0```
@@ -80,10 +84,11 @@ module pose_vflip(exploded = undef)       //! Pose an STL or assembly for render
                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())
-        echo(str("~", name, "_assembly{"));
-
+module assembly(name, big = undef) {    //! Name an assembly that will appear on the BOM, there needs to a module named ```<name>_assembly``` to make it. ```big``` can force big or small assembly diagrams.
+    if(bom_mode()) {
+        args = is_undef(big) ? "" : str("(big=", big, ")");
+        echo(str("~", name, "_assembly", args, "{"));
+    }
    no_pose()
        if(is_undef($child_assembly))
            let($child_assembly = true)
--- a/utils/core/global.scad
+++ b/utils/core/global.scad
@@ -43,7 +43,7 @@ module ellipse(xr, yr) scale([1, yr / xr]) circle4n(xr);

 module extrude_if(h, center = true)                 //! Extrudes 2D object to 3D when ```h``` is nonzero, otherwise leaves it 2D
    if(h)
-        linear_extrude(height = h, center = center, convexity = 2) // 3D
+        linear_extrude(h, center = center, convexity = 2) // 3D
            children();
    else
        children();                                 // 2D
--- a/utils/core/rounded_rectangle.scad
+++ b/utils/core/rounded_rectangle.scad
@@ -28,6 +28,6 @@ module rounded_square(size, r, center = true) //! Like ```square()``` but with w

 module rounded_rectangle(size, r, center = true, xy_center = true) //! Like ```cube()``` but corners rounded in XY plane and separate centre options for xy and z.
 {
-    linear_extrude(height = size[2], center = center)
+    linear_extrude(size[2], center = center)
        rounded_square([size[0], size[1]], r, xy_center);
 }
--- a/utils/hanging_hole.scad
+++ b/utils/hanging_hole.scad
@@ -47,7 +47,7 @@ module hanging_hole(z, ir, h = 100, h2 = 100) { //! Hole radius ```ir``` hanging

            difference() {
                translate_z(-below)
-                    linear_extrude(height = below + 2 * layer_height)
+                    linear_extrude(below + 2 * layer_height)
                        children();

                rotate(infill_angle)
--- a/utils/tube.scad
+++ b/utils/tube.scad
@@ -29,5 +29,5 @@ module ring(or, ir) //! Create a ring with specified external and internal radii
        }

 module tube(or, ir, h, center = true) //! Create a tube with specified external and internal radii and height ```h```
-    linear_extrude(height = h, center = center, convexity = 5)
+    linear_extrude(h, center = center, convexity = 5)
        ring(or, ir);
--- a/vitamins/ball_bearing.scad
+++ b/vitamins/ball_bearing.scad
@@ -44,7 +44,7 @@ module ball_bearing(type) { //! Draw a ball bearing
    id = bb_bore(type);

    module tube(od, id, h)
-        linear_extrude(height = h, center = true, convexity = 5)
+        linear_extrude(h, center = true, convexity = 5)
            difference() {
                circle(d = od);
                circle(d = id);
--- a/vitamins/battery.scad
+++ b/vitamins/battery.scad
@@ -75,7 +75,7 @@ module battery(type) { //! Draw a battery
        if(battery_usb_offset(type))
            translate([battery_diameter(type) / 2, 0, len / 2 - battery_usb_offset(type) + h / 2])
                rotate([-90, 0, 90])
-                    linear_extrude(height = l + 1)
+                    linear_extrude(l + 1)
                        offset(delta = t)
                            D();
    }
@@ -87,14 +87,14 @@ module battery(type) { //! Draw a battery
        if(battery_usb_offset(type))
            translate([battery_diameter(type) / 2 - 1, 0, len / 2 - battery_usb_offset(type) + h / 2])
                rotate([-90, 0, 90]) {
-                    linear_extrude(height = l)
+                    linear_extrude(l)
                        difference() {
                            offset(t) D();
                            D();
                       }

                    translate_z(l - 1)
-                        linear_extrude(height = 1)
+                        linear_extrude(1)
                            D();
                }

@@ -132,7 +132,7 @@ module battery_contact(type, pos = true) { //! Draw a positive or negative batte

        translate([0, -h / 2, t])
            rotate([90, 0, 0])
-                linear_extrude(height = t)
+                linear_extrude(t)
                    difference() {
                        hull() {
                            translate([-tw / 2, -1])
--- a/vitamins/belt.scad
+++ b/vitamins/belt.scad
@@ -62,7 +62,7 @@ module belt(type, points, gap = 0, gap_pt = undef, belt_colour = grey20, tooth_c
                square([gap, thickness + eps], center = true);

    color(belt_colour)
-        linear_extrude(height = width, center = true)
+        linear_extrude(width, center = true)
            difference() {
                offset(thickness - belt_pitch_height(type)) shape();
                offset(-belt_pitch_height(type) + belt_tooth_height(type)) shape();
@@ -70,7 +70,7 @@ module belt(type, points, gap = 0, gap_pt = undef, belt_colour = grey20, tooth_c

            }
    color(tooth_colour)
-        linear_extrude(height = width, center = true)
+        linear_extrude(width, center = true)
            difference() {
                offset(-belt_pitch_height(type) + belt_tooth_height(type)) shape();
                offset(-belt_pitch_height(type)) shape();
--- a/vitamins/blower.scad
+++ b/vitamins/blower.scad
@@ -72,7 +72,7 @@ module blower(type) { //! Draw specified blower

    color(fan_colour) {
        // screw lugs
-        linear_extrude(height = blower_lug(type), center = false)
+        linear_extrude(blower_lug(type), center = false)
            for(hole = blower_screw_holes(type))
                difference() {
                    hull() {
@@ -94,7 +94,7 @@ module blower(type) { //! Draw specified blower
        *%square([length, width]);

        // base
-        linear_extrude(height = blower_base(type))
+        linear_extrude(blower_base(type))
            difference() {
                shape();

@@ -102,7 +102,7 @@ module blower(type) { //! Draw specified blower
                    circle(d = 2);
           }
        // sides
-        linear_extrude(height = depth)
+        linear_extrude(depth)
            difference() {
                shape();

@@ -112,7 +112,7 @@ module blower(type) { //! Draw specified blower

        // top
        translate_z(depth -blower_top(type))
-            linear_extrude(height = blower_top(type))
+            linear_extrude(blower_top(type))
                difference() {
                    shape();

--- a/vitamins/cable_strip.scad
+++ b/vitamins/cable_strip.scad
@@ -34,7 +34,7 @@ function cable_strip_thickness() = cable_strip_thickness;
 use <../utils/bezier.scad>
 use <../utils/sweep.scad>

-cable_strip_color = "green";
+cable_strip_colour = "green";

 function cable_strip_control_points(depth, min_z, pos) = let(z = min(min_z, min_z + pos))
 [
@@ -62,7 +62,7 @@ module bezier_cable_strip(ways, depth, length, below, extra, pos = 0) { //! Draw

    path = [v[0] + extra_v, each bezier_path(v, steps), v[3] + extra_v];

-    color(cable_strip_color)
+    color(cable_strip_colour)
        translate_z(-extra)
            sweep(path, rectangle_points(width, thickness));
    *echo(cable_strip_lengh = length);
@@ -89,7 +89,7 @@ module cable_strip(ways, depth, travel, extra = 15, pos = 0) {  //! Draw a cable

    vitamin(str("cable_strip(", ways, ", ", depth, ", ", travel, arg(extra, 15), "): Polypropylene strip ", total, "mm x ", w, "mm x ", thickness, "mm"));

-    color(cable_strip_color) linear_extrude(height = w, center = true, convexity = 4)
+    color(cable_strip_colour) linear_extrude(w, center = true, convexity = 4)
        difference() {
            union() {
                translate([-bottom, radius])
@@ -142,7 +142,7 @@ module elliptical_cable_strip(ways, p1, p2, pmax, extra = 15) {
                         [delta[2] / delta[0], 0, 1, delta[2] / 2],
                         [0, 0, 0, 1] ])

-        color(cable_strip_color) linear_extrude(height = w, center = true, convexity = 4)
+        color(cable_strip_colour) linear_extrude(w, center = true, convexity = 4)
            difference() {
                union()  {
                    square([(a + thickness) * 2, extra * 2], center = true);
--- a/vitamins/circlip.scad
+++ b/vitamins/circlip.scad
@@ -57,7 +57,7 @@ module internal_circlip(type, open = 0) { //! Draw specified internal circlip, o
    y_offset = (sqr(p.x) + sqr(p.y) - sqr(or - b)) / (or - b - p.y) / 2;
    ir = or - b + y_offset;
    color(circlip_colour)
-        linear_extrude(height = circlip_thickness(type), center = true)
+        linear_extrude(circlip_thickness(type), center = true)
            round((a - d5) / 5)
            union() {
                difference() {
--- a/vitamins/component.scad
+++ b/vitamins/component.scad
@@ -147,7 +147,7 @@ module al_clad_resistor(type, value, leads = true) { //! Draw an aluminium clad

    color("silver") {
        rotate([90, 0, 90])
-            linear_extrude(height = length, center = true)
+            linear_extrude(length, center = true)
                hull() {
                    translate([0, al_clad_height(type) / 2])
                        intersection() {
@@ -158,7 +158,7 @@ module al_clad_resistor(type, value, leads = true) { //! Draw an aluminium clad
                    translate([0, thickness / 2])
                        square([body, thickness], center = true);
                }
-        linear_extrude(height = thickness)
+        linear_extrude(thickness)
            difference() {
                for(end = [-1, 1])
                    translate([end * (length - tab) / 2, end * (width - width / 2) / 2])
@@ -176,7 +176,7 @@ module al_clad_resistor(type, value, leads = true) { //! Draw an aluminium clad
            for(end = [-1, 1])
                translate([end * (al_clad_wire_length(type) - terminal_l) / 2, 0, height / 2])
                    rotate([90, 0, 0])
-                        linear_extrude(height = terminal_t, center = true) difference() {
+                        linear_extrude(terminal_t, center = true) difference() {
                            square([terminal_l, terminal_h], center = true);

                            circle(r = 1);
@@ -226,7 +226,7 @@ module  TO220(description, leads = 3, lead_length = 16) { //! Draw a TO220 packa

    translate([0, -length + hole_y]) {
        color("silver") {
-            linear_extrude(height = TO220_thickness())
+            linear_extrude(TO220_thickness())
                difference() {
                    translate([-width / 2, inset])
                        square([width, length - inset]);
@@ -305,7 +305,7 @@ module panel_USBA() { //! Draw a panel mount USBA connector

    vflip() {
        color("dimgrey")  {
-            linear_extrude(height = thickness)
+            linear_extrude(thickness)
                difference() {
                    hull()
                        for(side = [-1, 1])
@@ -345,14 +345,14 @@ module panel_USBA() { //! Draw a panel mount USBA connector
            }

            translate_z(height3)
-                linear_extrude(height = l - height3)
+                linear_extrude(l - height3)
                    difference() {
                        rounded_square([length2, width], r = r1);

                        square([w - flange_t, h - flange_t], center = true);
                    }

-            linear_extrude(height = height3)
+            linear_extrude(height3)
                difference() {
                    rounded_square([length2, width], r = r1);

@@ -363,7 +363,7 @@ module panel_USBA() { //! Draw a panel mount USBA connector
        *cube([12, 4.5, 32], center = true);

        color("silver") {
-            linear_extrude(height = l)
+            linear_extrude(l)
                difference() {
                    square([w, h], center = true);

@@ -373,7 +373,7 @@ module panel_USBA() { //! Draw a panel mount USBA connector
            translate_z(l - flange_t / 2)
                cube([w, h, flange_t], center = true);

-            linear_extrude(height = flange_t)
+            linear_extrude(flange_t)
                difference() {
                    union() {
                        square([h_flange_l, h + 2 * h_flange_h], center = true);
@@ -418,7 +418,7 @@ module thermal_cutout(type) { //! Draw specified thermal cutout
    spade = spade6p4;

    color("silver") {
-        linear_extrude(height = tc_thickness(type))
+        linear_extrude(tc_thickness(type))
            difference() {
                hull()
                    for(side = [-1, 1])
--- a/vitamins/d_connector.scad
+++ b/vitamins/d_connector.scad
@@ -23,9 +23,9 @@
 include <../utils/core/core.scad>
 use <../utils/thread.scad>

-d_pillar_color                   = grey90;
-d_plug_shell_color               = grey80;
-d_plug_insulator_color           = grey20;
+d_pillar_colour                   = grey90;
+d_plug_shell_colour               = grey80;
+d_plug_insulator_colour           = grey20;

 function  d_flange_length(type)    = type[1];   //! Length of the flange
 function  d_lengths(type)          = type[2];   //! Lengths of the D for plug and socket
@@ -56,20 +56,20 @@ module d_pillar() { //! Draw a pillar for a D-connector

    translate_z(-screw_length)
        if(show_threads)
-            male_metric_thread(screw, pitch, screw_length, false, top = 0, colour = d_pillar_color);
+            male_metric_thread(screw, pitch, screw_length, false, top = 0, colour = d_pillar_colour);
        else
-            color(d_pillar_color)
+            color(d_pillar_colour)
                cylinder(d = screw, h = screw_length + 1);

-    color(d_pillar_color) {
-        linear_extrude(height = height)
+    color(d_pillar_colour) {
+        linear_extrude(height)
            difference() {
                circle(r = rad, $fn = 6);
                circle(d = screw);
            }
        }
    if(show_threads)
-        female_metric_thread(screw, pitch, height, false, colour = d_pillar_color);
+        female_metric_thread(screw, pitch, height, false, colour = d_pillar_colour);
 }

 module d_plug(type, socket = false, pcb = false, idc = false) { //! Draw specified D plug, which can be IDC, PCB or plain solder bucket
@@ -106,8 +106,8 @@ module d_plug(type, socket = false, pcb = false, idc = false) { //! Draw specifi
    //
    // Shell
    //
-    color(d_plug_shell_color)  {
-        linear_extrude(height =  d_flange_thickness(type))
+    color(d_plug_shell_colour)  {
+        linear_extrude( d_flange_thickness(type))
            difference() {
                rounded_square([flange_length, flange_width], 2);

@@ -115,7 +115,7 @@ module d_plug(type, socket = false, pcb = false, idc = false) { //! Draw specifi
                    circle(hole_r);
            }

-        linear_extrude(height = front_height, convexity = 5)
+        linear_extrude(front_height, convexity = 5)
            difference() {
                D(d_length, d_width, 2.5);
                D(d_length - 2 * dwall, d_width - 2 * dwall, 2.5 - dwall);
@@ -123,21 +123,21 @@ module d_plug(type, socket = false, pcb = false, idc = false) { //! Draw specifi

        if(!idc)
            rotate([0,180,0])
-                linear_extrude(height = back_height, convexity = 5)
+                linear_extrude(back_height, convexity = 5)
                    D(d_lengths(type)[0] + 2 * dwall, d_widths(type)[0] + 2 * dwall, 2.5 + dwall);

    }
    //
    // Insulator
    //
-    color(d_plug_insulator_color) {
+    color(d_plug_insulator_colour) {
        translate_z(d_flange_thickness(type) + eps)
            rotate([0, 180, 0])
-                linear_extrude(height = back_height + 1 + d_flange_thickness(type), convexity = 5)
+                linear_extrude(back_height + 1 + d_flange_thickness(type), convexity = 5)
                    D(d_length - dwall, d_width - dwall, 2.5 - dwall/2);

        if(socket)
-            linear_extrude(height = front_height - eps, convexity = 5)
+            linear_extrude(front_height - eps, convexity = 5)
                difference() {
                    D(d_length - dwall, d_width - dwall, 2.5 - dwall/2);

@@ -169,11 +169,11 @@ module d_plug(type, socket = false, pcb = false, idc = false) { //! Draw specifi

        if(pcb)
           rotate([0, 180, 0]) {
-                linear_extrude(height = back_height + 1 + 4.5)
+                linear_extrude(back_height + 1 + 4.5)
                    pin_positions()
                         circle(r = 0.75 / 2, $fn = 12);

-                linear_extrude(height = back_height + 1 + 1)
+                linear_extrude(back_height + 1 + 1)
                    pin_positions()
                         circle(r = 0.75, $fn = 12);
            }
@@ -183,7 +183,7 @@ module d_plug(type, socket = false, pcb = false, idc = false) { //! Draw specifi
                pin_positions()
                    rotate(180 + ($i % 2) * 180)
                    render() difference() {
-                        linear_extrude(height = 8)
+                        linear_extrude(8)
                            difference() {
                                circle(1);

--- a/vitamins/fan.scad
+++ b/vitamins/fan.scad
@@ -80,10 +80,10 @@ module fan(type) { //! Draw specified fan, origin in the centre
        if(middle > 0) {
            for(z = [-1, 1])
                translate_z(z * (depth - thickness) / 2)
-                    linear_extrude(height = thickness, center = true)
+                    linear_extrude(thickness, center = true)
                        shape();

-            linear_extrude(height = middle, center = true)
+            linear_extrude(middle, center = true)
                difference() {
                    shape();
                    difference() {
@@ -100,13 +100,13 @@ module fan(type) { //! Draw specified fan, origin in the centre
                }
        }
        else
-            linear_extrude(height = depth, center = true)
+            linear_extrude(depth, center = true)
                shape();

        // Blades
        blade_ir = fan_hub(type) / 2 - 1;
        blade_len = fan_bore(type) / 2 - 0.75 - blade_ir;
-        linear_extrude(height = depth - 1, center = true, convexity = 4, twist = -30, slices = round(depth / 2))
+        linear_extrude(depth - 1, center = true, convexity = 4, twist = -30, slices = round(depth / 2))
            for(i = [0 : fan_blades(type) - 1])
                rotate((360 * i) / fan_blades(type))
                    translate([blade_ir, -1.5 / 2])
--- a/vitamins/fuseholder.scad
+++ b/vitamins/fuseholder.scad
@@ -68,7 +68,7 @@ module fuseholder(thickness) { //! Fuseholder with nut in place for specified pa
                color(colour) {
                    tube(or = nut_d / 2, ir = thread_d / 2, h = nut_flange_t, center = false);

-                    linear_extrude(height = nut_t)
+                    linear_extrude(nut_t)
                        difference() {
                            circle(d = nut_d, $fn = 6);

@@ -87,7 +87,7 @@ module fuseholder(thickness) { //! Fuseholder with nut in place for specified pa

            cylinder(r = 5, h = flange_t - 1);

-            linear_extrude(height = flange_t)
+            linear_extrude(flange_t)
                difference() {
                    circle(r = 5);

@@ -96,7 +96,7 @@ module fuseholder(thickness) { //! Fuseholder with nut in place for specified pa

            vflip() {
                if(!show_threads)
-                    linear_extrude(height = thread)
+                    linear_extrude(thread)
                        intersection() {
                            circle(d = thread_d - 0.3);

@@ -127,7 +127,7 @@ module fuseholder(thickness) { //! Fuseholder with nut in place for specified pa
            for(side = [-1, 1])
                translate([side * contact_slot_d / 2, 0, contact_slot_z])
                    rotate([0, -70, 90 - side * 90])
-                        linear_extrude(height = contact_t, center = true) difference() {
+                        linear_extrude(contact_t, center = true) difference() {
                            hull() {
                                square([eps, contact_w], center = true);

--- a/vitamins/geared_stepper.scad
+++ b/vitamins/geared_stepper.scad
@@ -61,7 +61,7 @@ module geared_stepper(type) { //! Draw the specified geared stepper

        cylinder(d = gs_boss_d(type), h = 2 * gs_boss_h(type), center = true);

-        linear_extrude(height = gs_lug_t(type))
+        linear_extrude(gs_lug_t(type))
            difference() {
                hull()
                    geared_stepper_screw_positions(type)
@@ -78,7 +78,7 @@ module geared_stepper(type) { //! Draw the specified geared stepper
        color(brass) {
            d = gs_shaft_d(type);
            h = gs_shaft_length(type);
-            linear_extrude(height = h)
+            linear_extrude(h)
                intersection() {
                    circle(d = d);

@@ -95,7 +95,7 @@ module geared_stepper(type) { //! Draw the specified geared stepper

        h2 = gs_bulge2_h(type);
        translate([0, - offset, h1 + 1 - h2])
-            linear_extrude(height = h2)
+            linear_extrude(h2)
                round(0.5)
                    intersection() {
                        circle(gs_bulge2_d(type));
--- a/vitamins/green_terminal.scad
+++ b/vitamins/green_terminal.scad
@@ -80,7 +80,7 @@ module green_terminal(type, ways, skip = [], colour = "lime") { //! Draw green t

        color(colour) {
            rotate([90, 0, 0])
-                linear_extrude(height = pitch, center = true, convexity = 5)
+                linear_extrude(pitch, center = true, convexity = 5)
                    polygon(points = [                          // Vertical section
                        [y + depth / 2,                  0],
                        [y + depth / 2,                  ledge_height / 2 - box_h1 / 2],
@@ -105,7 +105,7 @@ module green_terminal(type, ways, skip = [], colour = "lime") { //! Draw green t
                    ]);

            translate([y2, 0, ledge_height / 2 + box_h2 / 2])   // Screw socket
-                linear_extrude(height = height - ledge_height / 2 - box_h2 / 2)
+                linear_extrude(height - ledge_height / 2 - box_h2 / 2)
                    difference() {
                        square([screw_r * 2 + 0.1, pitch], center = true);

@@ -113,7 +113,7 @@ module green_terminal(type, ways, skip = [], colour = "lime") { //! Draw green t
                    }


-            linear_extrude(height = ledge_height)
+            linear_extrude(ledge_height)
                intersection() {
                    horizontal_section();

@@ -121,7 +121,7 @@ module green_terminal(type, ways, skip = [], colour = "lime") { //! Draw green t
                        square([10, 10]);
                }

-            linear_extrude(height = back)
+            linear_extrude(back)
                intersection() {
                    horizontal_section();

@@ -131,7 +131,7 @@ module green_terminal(type, ways, skip = [], colour = "lime") { //! Draw green t

            if(tube_h)
                translate([y2, 0, height])
-                    linear_extrude(height = tube_h - height)
+                    linear_extrude(tube_h - height)
                        intersection() {
                            ring(or = top / 2, ir = screw_r);

@@ -149,7 +149,7 @@ module green_terminal(type, ways, skip = [], colour = "lime") { //! Draw green t
                            cylinder(r = screw_r, h = slot_depth);

                        translate_z(screw_top - slot_depth)         // screw head
-                            linear_extrude(height = slot_depth)
+                            linear_extrude(slot_depth)
                                difference() {
                                    circle(screw_r);

@@ -158,7 +158,7 @@ module green_terminal(type, ways, skip = [], colour = "lime") { //! Draw green t
                    }
                    translate([box_back, 0, ledge_height / 2]) {
                        rotate([0, 90, 0])
-                            linear_extrude(height = box_front - box_back)
+                            linear_extrude(box_front - box_back)
                                difference() {
                                    square([box_h2, box_w2], center = true);

--- a/vitamins/hygrometer.scad
+++ b/vitamins/hygrometer.scad
@@ -69,7 +69,7 @@ module hygrometer() { //! Draw a hygrometer
            cylinder(d = apperture_d, h = eps);

        color("black")
-            linear_extrude(height = 0.2, center = true) {
+            linear_extrude(0.2, center = true) {
                translate([0, 3])
                    text("20_4", font = "7 segment", valign = "bottom", halign = "center", size = apperture_d / 6);

--- a/vitamins/iec.scad
+++ b/vitamins/iec.scad
@@ -137,7 +137,7 @@ module iec(type) { //! Draw specified IEC connector
    color(grey20) {
        // Flange
        flange_t = iec_flange_t(type);
-        linear_extrude(height = flange_t)
+        linear_extrude(flange_t)
            difference() {
                hull() {
                    rounded_square([iec_flange_w(type), iec_flange_h(type)], iec_flange_r(type));
@@ -164,7 +164,7 @@ module iec(type) { //! Draw specified IEC connector
                }
        // Bezel
        translate_z(iec_flange_t(type))
-            linear_extrude(height = iec_bezel_t(type))
+            linear_extrude(iec_bezel_t(type))
                difference() {
                    rounded_square([iec_bezel_w(type), iec_bezel_h(type)], iec_bezel_r(type));

@@ -174,7 +174,7 @@ module iec(type) { //! Draw specified IEC connector
        // Body
        h = socket_d - iec_flange_t(type) - iec_bezel_t(type);
        translate_z(-h)
-            linear_extrude(height = h)
+            linear_extrude(h)
                difference() {
                    body_shape();

@@ -182,7 +182,7 @@ module iec(type) { //! Draw specified IEC connector
                }
        // Back
        translate_z(-iec_depth(type))
-            linear_extrude(height = iec_depth(type) - h)
+            linear_extrude(iec_depth(type) - h)
                body_shape();
    }
    if(!iec_male(type))
--- a/vitamins/insert.scad
+++ b/vitamins/insert.scad
@@ -108,10 +108,10 @@ module insert_boss(type, z, wall = 2 * extrusion_width) { //! Make a boss to tak
        hull()
            poly_ring(or, ir);

-    linear_extrude(height = z)
+    linear_extrude(z)
        poly_ring(or, ir);

-    linear_extrude(height = z - insert_hole_length(type))
+    linear_extrude(z - insert_hole_length(type))
        difference() {
            shape();

@@ -119,7 +119,7 @@ module insert_boss(type, z, wall = 2 * extrusion_width) { //! Make a boss to tak
        }

    if(z > insert_hole_length(type) + 2 * layer_height)
-        linear_extrude(height = 2 * layer_height)       // cap the end if room
+        linear_extrude(2 * layer_height)       // cap the end if room
            shape();
 }

@@ -143,7 +143,7 @@ module insert_lug(insert, wall, counter_bore = 0, extension = 0, corner_r = 0, f
        }

    translate_z(-boss_h)
-        linear_extrude(height = boss_h)
+        linear_extrude(boss_h)
             difference() {
                shape();

@@ -152,7 +152,7 @@ module insert_lug(insert, wall, counter_bore = 0, extension = 0, corner_r = 0, f

    // insert boss counter_bore
    translate_z(-boss_h2) {
-        linear_extrude(height = counter_bore + eps)
+        linear_extrude(counter_bore + eps)
             difference() {
                shape();

@@ -162,7 +162,7 @@ module insert_lug(insert, wall, counter_bore = 0, extension = 0, corner_r = 0, f
        // support cone
        if(flying)
            hull() {
-                linear_extrude(height = eps)
+                linear_extrude(eps)
                    shape();

                translate([boss_r + extension - wall - eps, 0, - (2 * boss_r + extension - wall)])
--- a/vitamins/jack.scad
+++ b/vitamins/jack.scad
@@ -206,7 +206,7 @@ module post_4mm(colour, thickness, display_colour = false) { //! Draw a 4mm bind
        nut_t = 2.3;

        color(silver)
-            linear_extrude(height = nut_t) difference() {
+            linear_extrude(nut_t) difference() {
                circle(d = 6.3 / cos(30), $fn = 6);

                circle(d = thread_d);
@@ -229,7 +229,7 @@ module post_4mm(colour, thickness, display_colour = false) { //! Draw a 4mm bind
            cylinder(d = d, h = base_h);

            translate_z(-collar_t)
-                linear_extrude(height = base_h) {
+                linear_extrude(base_h) {
                    circle(post_4mm_hole_radius - 0.1);

                    spigot();
@@ -284,7 +284,7 @@ module post_4mm(colour, thickness, display_colour = false) { //! Draw a 4mm bind
    explode(-15)
        color(actual_colour) {
            translate_z(-thickness - base_h) {
-                linear_extrude(height = base_h)
+                linear_extrude(base_h)
                    difference() {
                        circle(d = d);

--- a/vitamins/jhead.scad
+++ b/vitamins/jhead.scad
@@ -52,7 +52,7 @@ module heater_block(type, resistor, thermistor) {
    color(brass) {
        render() difference() {
            rotate([90, 0, 0])
-                linear_extrude(height = heater_width(type), center = true) difference() {
+                linear_extrude(heater_width(type), center = true) difference() {
                    square([heater_length(type), h], center = true);

                    translate([resistor_x(type), 0])
--- a/vitamins/kp_pillow_block.scad
+++ b/vitamins/kp_pillow_block.scad
@@ -25,7 +25,7 @@ use <../utils/tube.scad>
 use <washer.scad>
 use <ball_bearing.scad>

-kp_pillow_block_color = grey70;
+kp_pillow_block_colour = grey70;

 function kp_diameter(type)        = type[1]; //! Rod hole diameter
 function kp_hole_offset(type)     = type[2]; //! Rod hole offset
@@ -50,7 +50,7 @@ module kp_pillow_block(type) { //! Draw the KP pillow block
    b = type[11];
    bolthole_radius = type[12];

-    color(kp_pillow_block_color)
+    color(kp_pillow_block_colour)
        translate([0, -H, 0]) {
            fillet = 1;
            squareSizeX = (L - H0) / 2 + fillet;
--- a/vitamins/ldr.scad
+++ b/vitamins/ldr.scad
@@ -71,17 +71,17 @@ module LDR(type, lead_length = 3) { //! Draw an LDR, can specify the lead length
    t = ldr_thickness(type);

    color("white")
-        linear_extrude(height = t - 0.4)
+        linear_extrude(t - 0.4)
            shape();

    color("orange")
        translate_z(t - 0.4)
-            linear_extrude(height = 0.1)
+            linear_extrude(0.1)
                shape();

    color([0.9, 0.9, 0.9])
        translate_z(t - 0.3)
-            linear_extrude(height = 0.1)
+            linear_extrude(0.1)
                difference() {
                    offset(-serpentine_t())
                        shape();
@@ -100,6 +100,6 @@ module LDR(type, lead_length = 3) { //! Draw an LDR, can specify the lead length
            }
    color([1, 1, 1, 0.25])
        translate_z(t - 0.3 + eps)
-            linear_extrude(height = 0.3)
+            linear_extrude(0.3)
                shape();
 }
--- a/vitamins/leadnut.scad
+++ b/vitamins/leadnut.scad
@@ -64,7 +64,7 @@ module leadnut(type) { //! Draw specified leadnut
                thread(bore_d, lead, h, thread_profile(pitch / 2, pitch * 0.366, 30), false, starts = lead / pitch, female = true, solid = false);

            translate_z(leadnut_flange_offset(type))
-                linear_extrude(height = leadnut_flange_t(type))
+                linear_extrude(leadnut_flange_t(type))
                    difference() {
                        circle(d = leadnut_flange_dia(type));

--- a/vitamins/led.scad
+++ b/vitamins/led.scad
@@ -40,7 +40,7 @@ module led(type, colour = "red", lead = 5) { //! Draw specified LED with desired
        rotate_extrude()
            rounded_corner(r = d / 2, h = led_height(type), r2 =  d / 2);

-        linear_extrude(height = led_rim_t(type))
+        linear_extrude(led_rim_t(type))
            difference() {
                circle(d = led_rim_dia(type));

--- a/vitamins/light_strip.scad
+++ b/vitamins/light_strip.scad
@@ -85,7 +85,7 @@ module light_strip(type, segs = undef) { //! Draw specified light strip, segs ca

    color("silver")
        rotate([90, 0, 90])
-            linear_extrude(height = l, center = true)
+            linear_extrude(l, center = true)
                polygon([
                    [ x1,  0], [ x1,  d], [ x2,  d], [ x3, y5], [ x3, y4], [ x2, y4],
                    [ x2, y3], [ x3, y3], [ x3, y2], [ x2, y2], [ x2, y1],
@@ -99,42 +99,42 @@ module light_strip(type, segs = undef) { //! Draw specified light strip, segs ca

    translate_z(y4) {
        color("white")
-            linear_extrude(height = 1.6)
+            linear_extrude(1.6)
                led_positions()
                    square([5, 5], center = true);

        color("yellow")
-            linear_extrude(height = 1.6 + eps)
+            linear_extrude(1.6 + eps)
                led_positions()
                    circle(d = 3.5);

        color("silver")
-            linear_extrude(height = 0.8)
+            linear_extrude(0.8)
                led_positions()
                    for(side = [-1,1], end = [-1:1])
                        translate([side * 2.2, end * 1.6])
                            square([1, 0.9], center = true);

        color("black")
-            linear_extrude(height = 0.1)
+            linear_extrude(0.1)
                segment_positions(segments - 1)
                    translate([segment_length, 0])
                        square([0.2, a], center = true);

        color("silver")
-            linear_extrude(height = 0.15)
+            linear_extrude(0.15)
                segment_positions()
                    for(end = [-1, 1], side = [-1, 1])
                        translate([end * (segment_length / 2 - 1.25) + segment_length / 2, side * 2.5])
                            square(2.5, center = true);

        color("silver")
-            linear_extrude(height = 0.55)
+            linear_extrude(0.55)
                resistor_positions()
                    square([3.2, 1.5], center = true);

        color("black")
-            linear_extrude(height = 0.55 + eps)
+            linear_extrude(0.55 + eps)
                resistor_positions()
                    square([2.1, 1.5 + 2 * eps], center = true);

@@ -152,7 +152,7 @@ function light_strip_clip_length(light) = light_strip_clip_slot(light) + 2 * wal
 function light_strip_clip_width(light) = light_strip_depth(light) + 2 * wall;       //! Outside width

 module light_strip_clip(light) { //! Make a clip to go over the strip to be incorporated into a bracket
-    linear_extrude(height = light_strip_clip_depth(light), convexity = 2)
+    linear_extrude(light_strip_clip_depth(light), convexity = 2)
        difference() {
            translate([-light_strip_clip_length(light) / 2, -wall])
                square([light_strip_clip_length(light), light_strip_clip_width(light)]);
--- a/vitamins/mains_socket.scad
+++ b/vitamins/mains_socket.scad
@@ -87,10 +87,10 @@ module mains_socket(type) { //! Draw specified 13A socket

    color("white") render() difference() {
        hull() {
-            linear_extrude(height = eps)
+            linear_extrude(eps)
                face_plate(type);

-            linear_extrude(height = height)
+            linear_extrude(height)
                offset(-(mains_socket_width(type) - mains_socket_top_w(type)) / 2)
                    face_plate(type);
        }
@@ -105,7 +105,7 @@ module mains_socket(type) { //! Draw specified 13A socket
        }
        // Hollow out the back
        difference() {
-            linear_extrude(height = height - mains_socket_t(type))
+            linear_extrude(height - mains_socket_t(type))
                offset(-mains_socket_t(type))
                    face_plate(type);

--- a/vitamins/meter.scad
+++ b/vitamins/meter.scad
@@ -56,7 +56,7 @@ module meter(type = led_meter, colour = "red", value = "888", display_colour = f

    color("green")
        translate_z(meter_height(type))
-            linear_extrude(height = meter_pcb_thickness(type))
+            linear_extrude(meter_pcb_thickness(type))
                difference() {
                    union() {
                        square([meter_pcb_length(type), meter_pcb_width(type)], center = true);
@@ -68,7 +68,7 @@ module meter(type = led_meter, colour = "red", value = "888", display_colour = f
                }

    color(display_colour ? display_colour : colour)
-        linear_extrude(height = 0.2, center = true)
+        linear_extrude(0.2, center = true)
            mirror([1,0,0])
                text(value, font = "7 segment", valign = "center", halign = "center", size = meter_width(type) - 2, spacing = 1.2);
 }
@@ -102,14 +102,14 @@ module meter_bezel(type = led_meter) { //! Generate the STL for the meter bezel
    h = meter_height(type);

    union() {
-        linear_extrude(height = h)
+        linear_extrude(h)
            difference() {
                rounded_square([l + 2 * wall, w + 2 * wall], rad);

                square([l + 2 * clearance, w + 2 * clearance], center = true);
            }

-        linear_extrude(height = flange_t)
+        linear_extrude(flange_t)
            difference() {
                rounded_square([l + 2 * wall + 2 * overlap, w + 2 * wall + 2 * overlap], rad + overlap);

--- a/vitamins/microswitch.scad
+++ b/vitamins/microswitch.scad
@@ -22,7 +22,7 @@
 //
 include <../utils/core/core.scad>

-microswitch_contact_color        =  brass;
+microswitch_contact_colour        =  brass;

 function microswitch_thickness(type) = type[2];     //! Body thickness
 function microswitch_width(type)     = type[3];     //! Body width
@@ -63,7 +63,7 @@ module microswitch(type) { //! Draw specified microswitch
    d = microswitch_button_t(type);

    color(microswitch_body_clr(type))
-        linear_extrude(height = microswitch_thickness(type), center = true)
+        linear_extrude(microswitch_thickness(type), center = true)
            difference() {    // main body
                rounded_square([microswitch_length(type), microswitch_width(type)], microswitch_radius(type));

@@ -73,7 +73,7 @@ module microswitch(type) { //! Draw specified microswitch

    color(microswitch_button_clr(type))                          // orange button
        translate(microswitch_button_pos(type) - [0, d / 2])
-            linear_extrude(height = microswitch_button_w(type), center = true)
+            linear_extrude(microswitch_button_w(type), center = true)
                hull() {
                    circle(d = d);

@@ -81,7 +81,7 @@ module microswitch(type) { //! Draw specified microswitch
                        circle(d = d);
                }

-    color(microswitch_contact_color)                            // yellow contacts
+    color(microswitch_contact_colour)                            // yellow contacts
        for(pos = microswitch_legs(type))
            translate(pos) {
                leg = microswitch_leg(type);
@@ -89,7 +89,7 @@ module microswitch(type) { //! Draw specified microswitch

                if(vertical)
                    rotate([0, 90, 0])
-                        linear_extrude(height = leg.x, center = true)
+                        linear_extrude(leg.x, center = true)
                            difference() {
                                square([leg.z, leg.y], center = true);

@@ -99,7 +99,7 @@ module microswitch(type) { //! Draw specified microswitch
                            }
                else
                    rotate([90, 0, 0])
-                        linear_extrude(height = leg.y, center = true)
+                        linear_extrude(leg.y, center = true)
                            difference() {
                                square([leg.x, leg.z], center = true);

--- a/vitamins/microview.scad
+++ b/vitamins/microview.scad
@@ -32,7 +32,7 @@ panel_clearance = 0.2;
 module microview(cutout = false) {  //! Draw microview or generate a panel cutout for it
    rotate([0, 0, -90])
        if(cutout)
-            linear_extrude(height = 100)
+            linear_extrude(100)
                offset(panel_clearance)
                    projection()
                         hull()
--- a/vitamins/module.scad
+++ b/vitamins/module.scad
@@ -84,7 +84,7 @@ module mod(type) {  //! Draw specified module

        color("silver")
            rotate([90, 0, 90])
-                linear_extrude(height = body_l, center = true)
+                linear_extrude(body_l, center = true)
                    profile();

        color(grey20)
@@ -92,18 +92,18 @@ module mod(type) {  //! Draw specified module
                translate([end * body_l / 2, 0, 0])
                    rotate([90, 0, end * 90])
                        union() {
-                            linear_extrude(height = end_t)              // endcap
+                            linear_extrude(end_t)              // endcap
                                profile();

                            translate_z(end_t)
                                rotate([90, 0, 180])
-                                    linear_extrude(height = lug_t)      // lug
+                                    linear_extrude(lug_t)      // lug
                                        lug();

                            for(side = [-1, 1]) {
                                translate([side * vane_p / 2, lug_t, end_t]) // buttress vanes
                                    rotate([0, -90, 0])
-                                        linear_extrude(height = vane_t, center = true)
+                                        linear_extrude(vane_t, center = true)
                                            polygon([[0, 0], [0, vane_h - lug_t], [vane_l, 0]]);

                                translate([side * vane_p / 2, h / 2, end_t]) // bosses
--- a/vitamins/nut.scad
+++ b/vitamins/nut.scad
@@ -58,7 +58,7 @@ module nut(type, nyloc = false, brass = false, nylon = false) { //! Draw specifi
    colour = brass ? brass_colour : nylon ? grey30: grey70;
    explode(nyloc ? 10 : 0) {
        color(colour) {
-            linear_extrude(height = thickness)
+            linear_extrude(thickness)
                difference() {
                    circle(outer_rad, $fn = 6);

@@ -120,7 +120,7 @@ module wingnut(type) { //! Draw a wingnut
                    [hole_rad, thickness]
                ]);
            for(rot = [0, 180])
-                rotate([90, 0, rot]) linear_extrude(height = wing_thickness, center = true)
+                rotate([90, 0, rot]) linear_extrude(wing_thickness, center = true)
                    hull() {
                        translate([wing_span / 2  - wing_width / 2, wing_height - wing_width / 2])
                            circle(wing_width / 2);
@@ -207,7 +207,7 @@ module nut_square(type, brass = false, nylon = false) { //! Draw specified squar
    colour = brass ? brass_colour : nylon ? grey30 : grey70;
    color(colour)
        difference() {
-            linear_extrude(height = thickness) {
+            linear_extrude(thickness) {
                difference() {
                    square([width, width], center = true);

--- a/vitamins/opengrab.scad
+++ b/vitamins/opengrab.scad
@@ -69,7 +69,7 @@ module opengrab() { //! Draw OpenGrab module
    translate_z(1)
        opengrab_hole_positions() {
            color(brass)
-                linear_extrude(height = depth - 1)
+                linear_extrude(depth - 1)
                    difference() {
                            circle(d = 4.7 / cos(30), $fn = 6);

@@ -85,7 +85,7 @@ module opengrab_target() { //! Draw OpenGrab target
    vitamin("opengrab_target(): OpenGrab  silicon steel target plate");

     color(grey80)
-        linear_extrude(height = target)
+        linear_extrude(target)
            difference() {
                square([width, width], center = true);

--- a/vitamins/pcb.scad
+++ b/vitamins/pcb.scad
@@ -106,7 +106,7 @@ module usb_A(h, v_flange_l, bar, cutout) {
                                   h + 2 * h_flange_h + 2 * panel_clearance, 100], r = cnc_bit_r, center = false);
        else
            color("silver") rotate([0, 90, 0]) {
-                linear_extrude(height = l, center = true)
+                linear_extrude(l, center = true)
                    difference() {
                        square([h, w], center = true);

@@ -119,7 +119,7 @@ module usb_A(h, v_flange_l, bar, cutout) {
                    cube([h, w, 1], center = true);

                translate_z(l / 2 - flange_t)
-                    linear_extrude(height = flange_t) difference() {
+                    linear_extrude(flange_t) difference() {
                        union() {
                            square([h + 2 * h_flange_h, h_flange_l], center = true);

@@ -150,7 +150,7 @@ module rj45(cutout = false) { //! Draw RJ45 Ethernet connector
            rotate([0, 90, 0]) {
                mouth = plug_z + plug_h - tab_z;
                color("silver") {
-                    linear_extrude(height = l, center = true)
+                    linear_extrude(l, center = true)
                        difference() {
                            square([h, w], center = true);

@@ -163,7 +163,7 @@ module rj45(cutout = false) { //! Draw RJ45 Ethernet connector
                }

                color(grey30) {
-                    linear_extrude(height = l - 0.2, center = true)
+                    linear_extrude(l - 0.2, center = true)
                        difference() {
                            square([h - 0.1, w - 0.1], center = true);

@@ -195,7 +195,7 @@ module jack(cutout = false) { //! Draw 3.5mm jack
        else
            color(grey20)
                rotate([0, 90, 0]) {
-                    linear_extrude(height = l / 2)
+                    linear_extrude(l / 2)
                        difference() {
                            square([h, w], center = true);

@@ -209,7 +209,7 @@ module jack(cutout = false) { //! Draw 3.5mm jack
                }
 }

-module buzzer(height, diameter, colour) { //! Draw PCB buzzer with specified height, diameter and color
+module buzzer(height, diameter, colour) { //! Draw PCB buzzer with specified height, diameter and colour
    color (colour)
        tube(or = diameter / 2, ir = height > 5 ? 1 : 0.75, h = height, center = false);
    color("white")
@@ -271,13 +271,13 @@ module hdmi(type, cutout = false) { //! Draw HDMI socket

    if(cutout)
        rotate([90, 0, 90])
-            linear_extrude(height = 100)
+            linear_extrude(100)
                offset(t + panel_clearance)
                    D();
    else
        color("silver")
            rotate([90, 0, 90]) {
-                linear_extrude(height = l, center = true)
+                linear_extrude(l, center = true)
                    difference() {
                        offset(t)
                            D();
@@ -285,7 +285,7 @@ module hdmi(type, cutout = false) { //! Draw HDMI socket
                    }

                translate_z(-l / 2)
-                    linear_extrude(height = 1)
+                    linear_extrude(1)
                        offset(t)
                            D();
            }
@@ -314,12 +314,12 @@ module usb_uA(cutout = false) { //! Draw USB micro A connector

    if(cutout)
        rotate([90, 0, 90])
-            linear_extrude(height = 100)
+            linear_extrude(100)
                offset((flange_h - ih2) / 2 + 2 * panel_clearance)
                    D();
    else
        color("silver") rotate([90, 0, 90]) {
-            linear_extrude(height = l, center = true)
+            linear_extrude(l, center = true)
                difference() {
                    offset(t)
                        D();
@@ -328,12 +328,12 @@ module usb_uA(cutout = false) { //! Draw USB micro A connector
                }

            translate_z(-l / 2)
-                linear_extrude(height = 1)
+                linear_extrude(1)
                    offset(t)
                        D();

            translate_z(l / 2 - t)
-                linear_extrude(height = t) difference() {
+                linear_extrude(t) difference() {
                    union() {
                        translate([0, h - t - ih1 / 2])
                            square([flange_w, ih1], center = true);
@@ -375,7 +375,7 @@ module usb_B(cutout = false) {  //! Draw USB B connector
    else
        translate_z(h / 2) rotate([90, 0, 90]) {
            color("silver")  {
-                linear_extrude(height = l, center = true)
+                linear_extrude(l, center = true)
                    difference() {
                        square([w, h], center = true);

@@ -388,7 +388,7 @@ module usb_B(cutout = false) {  //! Draw USB B connector
            }

            color("white") {
-                linear_extrude(height = l - 0.4, center = true)
+                linear_extrude(l - 0.4, center = true)
                    difference() {
                        square([w - 0.2, h - 0.2], center = true);

@@ -423,7 +423,7 @@ module barrel_jack(cutout = false) { //! Draw barrel power jack
        ;
    else {
        color(grey20) rotate([0, 90, 0]) {
-            linear_extrude(height = l, center = true) {
+            linear_extrude(l, center = true) {
                difference() {
                    translate([-h / 2, 0])
                        rounded_square([h, w], r);
@@ -437,7 +437,7 @@ module barrel_jack(cutout = false) { //! Draw barrel power jack
                }
            }
            translate_z(l / 2 - front)
-                linear_extrude(height = front) {
+                linear_extrude(front) {
                    difference() {
                        translate([-h / 2, 0])
                            rounded_square([h, w], r);
@@ -484,7 +484,7 @@ module uSD(size, cutout = false) { //! Draw uSD socket
        translate_z(size.z / 2) {
            color("silver")
                rotate([90, 0, 90]) {
-                    linear_extrude(height = size.y, center = true)
+                    linear_extrude(size.y, center = true)
                        difference() {
                            square([size.x, size.z], center = true);
                            square([size.x - 2 * t, size.z - 2 * t], center = true);
@@ -497,7 +497,7 @@ module uSD(size, cutout = false) { //! Draw uSD socket
                color(grey20)
                    rotate([90, 0, 90])
                        translate_z(t)
-                            linear_extrude(height = size.y - t, center = true)
+                            linear_extrude(size.y - t, center = true)
                                difference() {
                                    square([size.x - 2 * t, size.z - 2 * t], center = true);

@@ -526,7 +526,7 @@ module flex(cutout = false) { //! Draw flexistrip connector
            translate_z(0.5)
                cube([l, w, 1], center = true);

-            linear_extrude(height = h)
+            linear_extrude(h)
                difference() {
                    square([l, w], center = true);

@@ -535,7 +535,7 @@ module flex(cutout = false) { //! Draw flexistrip connector
                }

            translate_z(h - top_t)
-                linear_extrude(height = top_t)
+                linear_extrude(top_t)
                    difference() {
                        union() {
                            square([top_l, w], center = true);
@@ -581,7 +581,7 @@ module flat_flex(cutout = false) { //! Draw flat flexistrip connector as used on
        color(grey30) {
            translate([w / 2 - w1, 0, h1 / 2])
                rotate([90, 0, 90])
-                    linear_extrude(height = w1)
+                    linear_extrude(w1)
                        difference() {
                            square([l1, h1], center = true);

@@ -623,7 +623,7 @@ module terminal_35(ways, colour = "blue") { //! Draw 3.5mm terminal block
        screw_r = 1;
        color(colour) {
            rotate([90, 0, 0])
-                linear_extrude(height = pitch, center = true)
+                linear_extrude(pitch, center = true)
                    polygon(points = [
                        [ depth / 2,               0],
                        [ depth / 2,               box_z],
@@ -640,7 +640,7 @@ module terminal_35(ways, colour = "blue") { //! Draw 3.5mm terminal block
                        [-depth / 2,               0],
                    ]);

-            linear_extrude(height = box_z + box_h)
+            linear_extrude(box_z + box_h)
                difference() {
                    square([depth, pitch], center = true);

@@ -651,7 +651,7 @@ module terminal_35(ways, colour = "blue") { //! Draw 3.5mm terminal block
                }

            translate_z(box_z + box_h)
-                linear_extrude(height = height - box_z - box_h)
+                linear_extrude(height - box_z - box_h)
                    difference() {
                        square([2 * screw_r + 0.1, pitch], center = true);

@@ -663,7 +663,7 @@ module terminal_35(ways, colour = "blue") { //! Draw 3.5mm terminal block
            translate_z(screw_z) {
                cylinder(r = screw_r, h = height - screw_z - 1);      // screw

-                linear_extrude(height = height - screw_z - 0.5)
+                linear_extrude(height - screw_z - 0.5)
                    difference() {
                        circle(1);

@@ -678,7 +678,7 @@ module terminal_35(ways, colour = "blue") { //! Draw 3.5mm terminal block

            translate_z(box_z + box_h / 2)                      // terminal
                rotate([0, -90, 0]) {
-                    linear_extrude(height = depth - 2, center = true)
+                    linear_extrude(depth - 2, center = true)
                        difference() {
                            square([box_h, box_w], center = true);

@@ -735,7 +735,7 @@ module standoff(h, d, h2, d2) { //! Draw a standoff
    }
 }

-module trimpot10(vertical, coutout = false) { //! Draw a ten turn trimpot
+module trimpot10(vertical, cutout = false) { //! Draw a ten turn trimpot
    l = 10;
    w = 9.5;
    h = 4.8;
@@ -746,31 +746,39 @@ module trimpot10(vertical, coutout = false) { //! Draw a ten turn trimpot
    slot_w =  0.6;
    slot_h = 0.8;

+    module screw_pos()
+        translate([-w / 2 + screw_d / 2, -l / 2, h - screw_d / 2])
+            rotate([90, 0, 0])
+                children();
+
    translate(vertical ? [0, -h / 2, l / 2] : [0, 0])
        rotate([vertical ? -90 : 0, 0, 0]) {
-            color("#2CA1FD") {
-                translate([0, -foot_h / 2, foot_h / 2 + h / 2])
-                    cube([w, l - foot_h, h - foot_h], center = true);
+            if(cutout)
+                screw_pos()
+                    cylinder(d = screw_d + 1, h = 100);
+            else
+                color("#2CA1FD") {
+                    translate([0, -foot_h / 2, foot_h / 2 + h / 2])
+                        cube([w, l - foot_h, h - foot_h], center = true);

-                for(x = [-1, 1], y = [-1, 1])
-                    translate([x * (w - foot_w) / 2, y * (l - foot_w) / 2, h / 2])
-                        cube([foot_w, foot_w, h], center = true);
+                    for(x = [-1, 1], y = [-1, 1])
+                        translate([x * (w - foot_w) / 2, y * (l - foot_w) / 2, h / 2])
+                            cube([foot_w, foot_w, h], center = true);

-            }
+                }

-            color(brass)
-                translate([-w / 2 + screw_d / 2, -l / 2, h - screw_d / 2])
-                    rotate([90, 0, 0]) {
+                color(brass)
+                    screw_pos() {
                        cylinder(d = screw_d, h = screw_h - slot_h);

-                        linear_extrude(height = screw_h)
+                        linear_extrude(screw_h)
                            difference() {
                                circle(d = screw_d);

                                square([slot_w, screw_d + 1], center = true);
                            }
                    }
-         }
+             }
 }

 module pcb_component(comp, cutouts = false, angle = undef) { //! Draw pcb component from description
@@ -873,7 +881,7 @@ module pcb(type) { //! Draw specified PCB

    pcb_components(type);

-    color(pcb_colour(type)) linear_extrude(height = t) difference() {
+    color(pcb_colour(type)) linear_extrude(t) difference() {
        if(Len(pcb_polygon(type)))
            polygon(pcb_polygon(type));
        else
@@ -893,7 +901,7 @@ module pcb(type) { //! Draw specified PCB
        translate_z(t / 2)
            pcb_hole_positions(type)
                if(is_list(land))
-                    linear_extrude(height = t + 2 * eps, center = true)
+                    linear_extrude(t + 2 * eps, center = true)
                        difference() {
                            square(land, center = true);

@@ -906,7 +914,7 @@ module pcb(type) { //! Draw specified PCB
    plating = 0.15;
    color(pcb_colour(type) == "green" ? "silver" : "gold")
        translate_z(-plating)
-            linear_extrude(height = fr4 ? t + 2 * plating : plating)
+            linear_extrude(fr4 ? t + 2 * plating : plating)
                if(Len(grid)) {
                    pcb_grid_positions(type)
                        difference() {
@@ -935,11 +943,11 @@ module pcb_spacer(screw, height, wall = 1.8, taper = 0) { //! Generate STL for P
    or = corrected_radius(ir) + wall;

    if(height > taper)
-        linear_extrude(height = height - taper)
+        linear_extrude(height - taper)
            poly_ring(or, ir);

    if(taper)
-        linear_extrude(height = height)
+        linear_extrude(height)
            poly_ring(ir + 2 * extrusion_width, ir);
 }

@@ -949,7 +957,7 @@ module pcb_base(type, height, thickness, wall = 2) { //! Generate STL for a base
    or = corrected_radius(ir) + wall;

    union() {
-        linear_extrude(height = thickness)
+        linear_extrude(thickness)
            difference() {
                hull()
                    pcb_screw_positions(type)
@@ -959,7 +967,7 @@ module pcb_base(type, height, thickness, wall = 2) { //! Generate STL for a base
                    poly_circle(ir);
            }

-        linear_extrude(height = height)
+        linear_extrude(height)
            pcb_screw_positions(type)
                poly_ring(or, ir);
    }
--- a/vitamins/pcbs.scad
+++ b/vitamins/pcbs.scad
@@ -327,6 +327,16 @@ ZC_A0591 = ["ZC_A0591", "ZC-A0591 ULN2003 driver PCB", 35, 32, 1.6, 0, 2.5, 0, "
    [], [], [], [], M2p5_pan_screw];


+MT3608 = ["MT3608", "MT3608 boost converter module",        37, 17, 1.2, 2, 1.5, [5, 3], "#2140BE", false, [[3.0725, 5.095], [3.0725, -5.095], [-3.0725, 5.095], [-3.0725, -5.095]],
+    [ [-12.05 , -6.8, 180, "trimpot10"]
+    ]];
+
+TP4056 = ["TP4056", "TP4056 Li-lon Battery charger module", 26.2, 17.5, 1.0, 0, 1.0, [2.4, 2.4], "#2140BE", false,
+    [[1.67, 1.8], [1.67, -1.8], [-1.67, 1.8], [-1.67, -1.8], [-1.67, -4.98], [-1.67, 4.98]],
+    [ [  2, 17.5 / 2, 180, "usb_uA"],
+
+    ]];
+
 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]];
@@ -352,6 +362,8 @@ RAMPSEndstop = ["RAMPSEndstop", "RAMPS Endstop Switch",
    []];


-pcbs = [RAMPSEndstop, ExtruderPCB, PI_IO, RPI0, EnviroPlus, RPI3, ArduinoUno3, ArduinoLeonardo, Keyes5p1, PERF80x20, PERF70x50, PERF70x30, PERF60x40, PERF74x51, PSU12V1A, DuetE, Duex2, Duex5, Melzi, ZC_A0591];
+pcbs = [TP4056, MT3608, RAMPSEndstop, ExtruderPCB, PI_IO, ZC_A0591, RPI0, EnviroPlus, ArduinoUno3, ArduinoLeonardo, Keyes5p1, PSU12V1A, RPI3, DuetE, Duex2, Duex5, Melzi];
+
+perfboards = [PERF74x51, PERF70x50, PERF60x40, PERF70x30, PERF80x20];

 use <pcb.scad>
--- a/vitamins/pillar.scad
+++ b/vitamins/pillar.scad
@@ -66,7 +66,7 @@ module pillar(type) { //! Draw specified pillar
                    cylinder(h = top_thread_l, d = thread_d);

    color(pillar_i_colour(type))  {
-        linear_extrude(height = height)
+        linear_extrude(height)
            difference() {
                circle(d = pillar_id(type), $fn = fn(pillar_ifn(type)));
                circle(d = thread_d);
@@ -90,7 +90,7 @@ module pillar(type) { //! Draw specified pillar
    }

    if(pillar_od(type) > pillar_id(type))
-        color(pillar_o_colour(type)) linear_extrude(height = height)
+        color(pillar_o_colour(type)) linear_extrude(height)
            difference() {
                circle(d = pillar_od(type), $fn = fn(pillar_ofn(type)));

--- a/vitamins/pin_header.scad
+++ b/vitamins/pin_header.scad
@@ -81,7 +81,7 @@ module pin_header(type, cols = 1, rows = 1, smt = false, right_angle = false, cu
            translate([0, right_angle ? -ra_offset - pitch / 2 : 0, right_angle ? width / 2 : 0])
                rotate([right_angle ? 90 : 0, 0, 0])
                    color(base_colour)
-                        linear_extrude(height = h)
+                        linear_extrude(h)
                            for(x = [0 : cols - 1], y = [0 : rows - 1])
                                translate([pitch * (x - (cols - 1) / 2), pitch * (y - (rows - 1) / 2), pitch / 2])
                                    hull() {
@@ -111,10 +111,10 @@ module box_header(type, cols = 1, rows = 1, smt = false, cutout = false) { //! D
                    pin(type, hdr_pin_length(type) - pitch + base);

            color(hdr_base_colour(type)) {
-                linear_extrude(height = base)
+                linear_extrude(base)
                    square([w, l], center = true);

-                linear_extrude(height = h)
+                linear_extrude(h)
                    difference() {
                        square([w, l], center = true);

@@ -140,7 +140,7 @@ module idc_transition(type, cols = 5, skip = [], cutout = false) { //! Draw IDC

        color(hdr_base_colour(type))
            rotate([90, 0, 0])
-                linear_extrude(height = width, center = true, convexity = cols * rows)
+                linear_extrude(width, center = true, convexity = cols * rows)
                    difference() {
                        translate([0, height / 2])
                            square([length, height], center = true);
@@ -177,7 +177,7 @@ module pin_socket(type, cols = 1, rows = 1, right_angle = false, height = 0, smt
            translate([0, right_angle ? -ra_offset - pitch / 2 : 0, right_angle ? width / 2 : 0])
                rotate([right_angle ? 90 : 0, 0, 0])
                    translate_z(depth / 2)
-                        linear_extrude(height = depth, center = true)
+                        linear_extrude(depth, center = true)
                            difference() {
                                square([length, width], center = true);

--- a/vitamins/psu.scad
+++ b/vitamins/psu.scad
@@ -85,7 +85,7 @@ module terminal_block(type, ways) { //! Draw a power supply terminal block
            for(i = [0 : ways])
                translate([0, i * pitch + div])
                    rotate([90, 0, 0])
-                        linear_extrude(height = div)
+                        linear_extrude(div)
                            hull() {
                                r = 2;
                                square([depth, eps]);
@@ -170,7 +170,7 @@ module psu(type) { //! Draw a power supply

            multmatrix(psu_face_transform(type, i))
                translate([xo, 0, -t]) {
-                    color("silver") linear_extrude(height = t)
+                    color("silver") linear_extrude(t)
                        union() {
                            difference() {
                                square([xw, yw], center = true);
@@ -260,7 +260,7 @@ module psu(type) { //! Draw a power supply
        heatsink_offset = 13.5;
        color("#FCD67E")
            translate([(-right - rt) / 2, (ft - bt) / 2, z - pcb_thickness])
-                linear_extrude(height = pcb_thickness)
+                linear_extrude(pcb_thickness)
                    difference() {
                        square([pl, pw], center = true);

@@ -306,7 +306,7 @@ module psu(type) { //! Draw a power supply
            color("silver")
                translate([l / 2, -w / 2])
                    rotate([90, 0, 180])
-                        linear_extrude(height = length) {
+                        linear_extrude(length) {
                            translate([right + rt, z_top])
                                rotate(135)
                                    square([rt, right * sqrt(2)]);
@@ -336,7 +336,7 @@ module atx_psu_cutout(type) { //! Cut out for the rear of an ATX
    holes = psu_face_holes(psu_faces(type)[f_front]);
    translate([holes[0].x, -psu_width(type) / 2, psu_height(type) / 2 + holes[0].y])
        rotate([90, 0, 0])
-            linear_extrude(height = 100, center = true)
+            linear_extrude(100, center = true)
                round(5)
                polygon([ // https://www.techpowerup.com/forums/threads/pc-component-dimensions.157239, tweaked
                    [18.7, -13],
--- a/vitamins/pulley.scad
+++ b/vitamins/pulley.scad
@@ -69,7 +69,7 @@ module pulley(type) { //! Draw a pulley
    ir =  pulley_ir(type);
    module core() {
        translate_z(pulley_hub_length(type) + ft)
-            linear_extrude(height = w) let($fa  = 1, $fs = 0.1)
+            linear_extrude(w) let($fa  = 1, $fs = 0.1)
                 difference() {
                    circle(or);

--- a/vitamins/rail.scad
+++ b/vitamins/rail.scad
@@ -65,7 +65,7 @@ module carriage_hole_positions(type) { //! Position children over screw holes
                children();
 }

-module carriage(type, rail, end_color = grey20, wiper_color = grey20) { //! Draw the specified carriage
+module carriage(type, rail, end_colour = grey20, wiper_colour = grey20) { //! Draw the specified carriage
    total_l = carriage_length(type);
    block_l = carriage_block_length(type);
    block_w = carriage_width(type);
@@ -84,7 +84,7 @@ module carriage(type, rail, end_color = grey20, wiper_color = grey20) { //! Draw

    color(grey90) {
        rotate([90, 0, 90])
-            linear_extrude(height = block_l, center = true)
+            linear_extrude(block_l, center = true)
                 difference() {
                    translate([-block_w / 2, carriage_clearance(type)])
                        square([block_w, block_h - screw_depth]);
@@ -93,7 +93,7 @@ module carriage(type, rail, end_color = grey20, wiper_color = grey20) { //! Draw
                }

        translate_z(carriage_height(type) - screw_depth)
-            linear_extrude(height = screw_depth)
+            linear_extrude(screw_depth)
                difference() {
                    square([block_l, block_w], center = true);

@@ -104,13 +104,13 @@ module carriage(type, rail, end_color = grey20, wiper_color = grey20) { //! Draw

    module carriage_end(type, end_w, end_h, end_l) {
        wiper_length = 0.5;
-        color(wiper_color) translate_z(-end_l/2) linear_extrude(wiper_length)
+        color(wiper_colour) translate_z(-end_l/2) linear_extrude(wiper_length)
            difference() {
                translate([-end_w/2, carriage_clearance(type)])
                    square([end_w, end_h]);
                cutout();
            }
-        color(end_color) translate_z(wiper_length-end_l/2) linear_extrude(end_l-wiper_length)
+        color(end_colour) translate_z(wiper_length-end_l/2) linear_extrude(end_l-wiper_length)
            difference() {
                translate([-end_w/2, carriage_clearance(type)])
                    square([end_w, end_h]);
@@ -166,11 +166,11 @@ module rail(type, length) { //! Draw the specified rail
    }
 }

-module rail_assembly(type, length, pos, carriage_end_color = grey20, carriage_wiper_color = grey20) { //! Rail and carriage assembly
+module rail_assembly(type, length, pos, carriage_end_colour = grey20, carriage_wiper_colour = grey20) { //! Rail and carriage assembly
    rail(type, length);

    translate([pos, 0])
-        carriage(rail_carriage(type), type,  carriage_end_color, carriage_wiper_color);
+        carriage(rail_carriage(type), type,  carriage_end_colour, carriage_wiper_colour);

 }

--- a/vitamins/ring_terminal.scad
+++ b/vitamins/ring_terminal.scad
@@ -60,7 +60,7 @@ module ring_terminal(type) { //! Draw specifeid ring terminal
            children();

    color("silver") union() {
-        linear_extrude(height = t)
+        linear_extrude(t)
            difference() {
                hull_if_crimp() {
                    circle(d = od);
@@ -102,7 +102,7 @@ module ring_terminal(type) { //! Draw specifeid ring terminal
        else
            translate([0, -bend])
                rotate([-angle, 0, 0])
-                    linear_extrude(height = t)
+                    linear_extrude(t)
                        difference() {
                            length = l - od / 2 - bend;
                            hull() {
--- a/vitamins/rocker.scad
+++ b/vitamins/rocker.scad
@@ -54,7 +54,7 @@ module rocker(type, colour) { //! Draw the specified rocker switch

    explode(30) {
        color(grey20) {
-            linear_extrude(height = rocker_flange_t(type))
+            linear_extrude(rocker_flange_t(type))
                difference() {
                    rounded_square([rocker_flange_w(type), rocker_flange_h(type)], 0.5);

@@ -68,7 +68,7 @@ module rocker(type, colour) { //! Draw the specified rocker switch
            color(colour ? colour : grey30)
                translate_z(rocker_pivot(type))
                    rotate([90, 0, 90])
-                        linear_extrude(height = rocker_w, center = true)
+                        linear_extrude(rocker_w, center = true)
                            difference() {
                                circle(rocker_r, $fa = 1);

--- a/vitamins/screw.scad
+++ b/vitamins/screw.scad
@@ -114,7 +114,7 @@ module screw(type, length, hob_point = 0, nylon = false) { //! Draw specified sc
                cylinder(r = head_rad, h = head_height - socket_depth);

                translate_z(head_height - socket_depth)
-                    linear_extrude(height = socket_depth)
+                    linear_extrude(socket_depth)
                        difference() {
                            circle(head_rad);

@@ -128,7 +128,7 @@ module screw(type, length, hob_point = 0, nylon = false) { //! Draw specified sc
            color(colour) {
                r = show_threads ? rad - pitch / 2 : rad;
                translate_z(-socket_depth)
-                    linear_extrude(height = socket_depth)
+                    linear_extrude(socket_depth)
                        difference() {
                            circle(r);

@@ -161,7 +161,7 @@ module screw(type, length, hob_point = 0, nylon = false) { //! Draw specified sc
                            square([socket_rad, 10]);
                    }

-                linear_extrude(height = head_height)
+                linear_extrude(head_height)
                    difference() {
                        circle(socket_rad + eps);

@@ -187,7 +187,7 @@ module screw(type, length, hob_point = 0, nylon = false) { //! Draw specified sc
                            square([socket_rad, 10]);
                    }
                }
-                linear_extrude(height = head_height)
+                linear_extrude(head_height)
                    difference() {
                        circle(socket_rad + eps);
                        circle(socket_rad, $fn = 6);
@@ -211,7 +211,7 @@ module screw(type, length, hob_point = 0, nylon = false) { //! Draw specified sc
                    }

                translate_z(-socket_depth)
-                    linear_extrude(height = socket_depth)
+                    linear_extrude(socket_depth)
                        difference() {
                            circle(socket_rad + 0.1);

@@ -234,7 +234,7 @@ module screw(type, length, hob_point = 0, nylon = false) { //! Draw specified sc
                    }

                translate_z(-socket_depth)
-                    linear_extrude(height = socket_depth)
+                    linear_extrude(socket_depth)
                        difference() {
                            circle(socket_rad + 0.1);

--- a/vitamins/scs_bearing_block.scad
+++ b/vitamins/scs_bearing_block.scad
@@ -41,7 +41,7 @@ function scs_circlip(type)              = type[15]; //! Circlip used
 function scs_spacer(type)               = type[16]; //! Spacer used in long bearings


-sks_bearing_block_color = grey90;
+sks_bearing_block_colour = grey90;

 module scs_bearing_block(type) { //! Draw the specified SCS bearing block
    vitamin(str("scs_bearing_block(", type[0], "): ", type[0], " bearing block"));
@@ -71,7 +71,7 @@ module scs_bearing_block(type) { //! Draw the specified SCS bearing block
    boltHoleRadius = screw_clearance_radius(S1);
    footHeight = min(0.75, (G - bearing_dia(bearing) - 1.5) / 2); // estimate, not specified on drawings

-    color(sks_bearing_block_color) {
+    color(sks_bearing_block_colour) {
        linear_extrude(L, center = true) {
            bearingRadius = bearing_dia(bearing) / 2;
            // center section with bearing hole
--- a/vitamins/sealing_strip.scad
+++ b/vitamins/sealing_strip.scad
@@ -48,6 +48,6 @@ module sealing_strip(length) { //! Draw specified length of sealing strip
    vitamin(str("sealing_strip(", length, "): Sealing strip 10mm x 4mm x ", length, "mm"));
    rotate([90, 0, 90])
        color("Sienna")
-            linear_extrude(height = length, center = true)
+            linear_extrude(length, center = true)
                rounded_polygon(profile);
 }
--- a/vitamins/sheet.scad
+++ b/vitamins/sheet.scad
@@ -25,7 +25,7 @@
 //! * If soft, wood screws will be used, with a pilot hole.
 //! * If not soft, either tapped holes or a clearance hole and nuts will be used to retain screws.
 //!
-//! The "Color" parameter is a quad-array: [R, G, B, Alpha], or can be a named color, see [OpenSCAD_User_Manual](https://en.wikibooks.org/wiki/OpenSCAD_User_Manual/The_OpenSCAD_Language#color).
+//! The "Colour" parameter is a quad-array: [R, G, B, Alpha], or can be a named colour, see [OpenSCAD_User_Manual](https://en.wikibooks.org/wiki/OpenSCAD_User_Manual/The_OpenSCAD_Language#color).
 //!
 //! For speed sheets should be modelled in 2D by subtracting holes from 2D templates made by ```sheet_2D()``` and then extruded to 3D with ```render_2D_sheet()```.
 //! Note that modules that drill holes will return a 2D object if ```h``` is set to 0 to facilitate this.
@@ -75,14 +75,14 @@ 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 specified sheet
-    linear_extrude(height = sheet_thickness(type), center = true)
+    linear_extrude(sheet_thickness(type), center = true)
        sheet_2D(type, w, d, corners);

-module render_sheet(type, color = false) //! Render a sheet in the correct colour after holes have been subtracted
-    color(color ? color : sheet_colour(type))
+module render_sheet(type, colour = false) //! Render a sheet in the correct colour after holes have been subtracted
+    color(colour ? colour : sheet_colour(type))
        render() children();

-module render_2D_sheet(type, color = false) //! Extrude a 2D sheet template and give it the correct colour
-    color(color ? color : sheet_colour(type))
-        linear_extrude(height = sheet_thickness(type), center = true)
+module render_2D_sheet(type, colour = false) //! Extrude a 2D sheet template and give it the correct colour
+    color(colour ? colour : sheet_colour(type))
+        linear_extrude(sheet_thickness(type), center = true)
            children();
--- a/vitamins/sk_bracket.scad
+++ b/vitamins/sk_bracket.scad
@@ -24,7 +24,7 @@ include <../utils/fillet.scad>

 use <washer.scad>

-sk_bracket_color = grey70;
+sk_bracket_colour = grey70;

 function sk_diameter(type)        = type[1]; //! Rod hole diameter
 function sk_hole_offset(type)     = type[2]; //! Rod hole offset
@@ -47,7 +47,7 @@ module sk_bracket(type) { //! SK shaft support bracket
    S = type[10];
    bolthole_radius = type[11];

-    color(sk_bracket_color) {
+    color(sk_bracket_colour) {
        translate([0 , -h, 0]) {
            fillet = 0.5;
            rotate([-90, 0, 0])
--- a/vitamins/spade.scad
+++ b/vitamins/spade.scad
@@ -37,7 +37,7 @@ module spade(type, height = 14) { //! Draw a spade of the specified type and tot

    color("silver")
    rotate([90, 0, 0])
-        linear_extrude(height = spade_t(type), center = true)
+        linear_extrude(spade_t(type), center = true)
            difference() {
                union() {
                    if(shank_l > 0)
--- a/vitamins/ssr.scad
+++ b/vitamins/ssr.scad
@@ -44,7 +44,7 @@ module ssr(type) { //! Draw specified SSR
    t = ssr_base_t(type);
    h = ssr_height(type);

-    color("silver") linear_extrude(height = t) difference() {
+    color("silver") linear_extrude(t) difference() {
        square([l, w], center = true);

        ssr_hole_positions(type)
@@ -52,7 +52,7 @@ module ssr(type) { //! Draw specified SSR
    }
    color([242/255, 236/255, 220/255])
        translate_z(t)
-            linear_extrude(height = h - t) difference() {
+            linear_extrude(h - t) difference() {
                square([l, w], center = true);

                for(end = [-1, 1])
--- a/vitamins/stepper_motor.scad
+++ b/vitamins/stepper_motor.scad
@@ -42,6 +42,7 @@ function NEMA_big_hole(type)    = NEMA_boss_radius(type) + 0.2; //! Clearance ho

 stepper_body_colour = "black";
 stepper_cap_colour  = grey50;
+stepper_machined_colour = grey90;

 module NEMA_outline(type) //! 2D outline
    intersection() {
@@ -62,57 +63,63 @@ module NEMA(type, shaft_angle = 0) { //! Draw specified NEMA stepper motor
    vitamin(str("NEMA(", type[0], "): Stepper motor NEMA", round(NEMA_width(type) / 2.54), " x ", length, "mm"));
    thread_d = 3;                                                           // Is this always the case?

-    union() {
-        color(stepper_body_colour)                                          // black laminations
-            translate_z(-length / 2)
-                linear_extrude(height = length - cap * 2, center = true)
-                    intersection() {
-                        square([side, side], center = true);
+    module cap_shape(end)
+        difference() {
+            intersection() {
+                square([side, side], center = true);

-                        circle(body_rad);
-                    }
-
-        color(stepper_cap_colour) {                                     // aluminium end caps
-            tube(or = boss_rad, ir =  shaft_rad + 2, h = boss_height * 2); // raised boss
-
-            for(end = [-1, 1])
-                translate_z(-length / 2 + end * (length - cap) / 2) {
-                    linear_extrude(height = cap, center = true)
-                        difference() {
-                            intersection() {
-                                square([side, side], center = true);
-                                circle(NEMA_radius(type));
-                            }
-                            if(end > 0)
-                                for(x = NEMA_holes(type), y = NEMA_holes(type))
-                                    translate([x, y])
-                                        circle(d = thread_d);
-                        }
-                }
+                circle(NEMA_radius(type), $fn = 360);
+            }
+            if(end > 0)
+                for(x = NEMA_holes(type), y = NEMA_holes(type))
+                    translate([x, y])
+                        circle(d = thread_d);
        }
-        if(show_threads)
-            for(x = NEMA_holes(type), y = NEMA_holes(type))
-                translate([x, y, -cap / 2])
-                    female_metric_thread(thread_d, metric_coarse_pitch(thread_d), cap, colour = stepper_cap_colour);

-        shaft =  NEMA_shaft_length(type);
-        translate_z(-5)
-            rotate(shaft_angle)
-                if(!is_list(shaft))
-                    color(stepper_cap_colour)
-                        cylinder(r = shaft_rad, h = shaft + 5);  // shaft
-                else
-                    not_on_bom()
-                        leadscrew(shaft_rad * 2, shaft.x + 5, shaft.y, shaft.z, center = false)
+    color(stepper_body_colour)                                          // black laminations
+        translate_z(-length / 2)
+            linear_extrude(length - cap * 2, center = true)
+                intersection() {
+                    square([side, side], center = true);

-        translate([0, side / 2, -length + cap / 2])
-            rotate([90, 0, 0])
-                for(i = [0 : 3])
-                    rotate(225 + i * 90)
-                        color(["red", "blue","green","black"][i])
-                            translate([1, 0, 0])
-                                cylinder(r = 1.5 / 2, h = 12, center = true);
+                    circle(body_rad);
+                }
+
+    color(stepper_machined_colour) {
+        tube(or = boss_rad, ir =  shaft_rad + 2, h = boss_height * 2); // raised boss
+
+        linear_extrude(eps)
+            cap_shape(true);
    }
+
+    color(stepper_cap_colour)                                       // aluminium end caps
+        for(end = [-1, 1])
+            translate_z(-length / 2 + end * (length - cap) / 2)
+                linear_extrude(cap, center = true)
+                    cap_shape(end);
+
+    if(show_threads)
+        for(x = NEMA_holes(type), y = NEMA_holes(type))
+            translate([x, y, -cap / 2])
+                female_metric_thread(thread_d, metric_coarse_pitch(thread_d), cap, colour = stepper_cap_colour);
+
+    shaft =  NEMA_shaft_length(type);
+    translate_z(-5)
+        rotate(shaft_angle)
+            if(!is_list(shaft))
+                color(stepper_machined_colour)
+                    cylinder(r = shaft_rad, h = shaft + 5);  // shaft
+            else
+                not_on_bom()
+                    leadscrew(shaft_rad * 2, shaft.x + 5, shaft.y, shaft.z, center = false)
+
+    translate([0, side / 2, -length + cap / 2])
+        rotate([90, 0, 0])
+            for(i = [0 : 3])
+                rotate(225 + i * 90)
+                    color(["red", "blue","green","black"][i])
+                        translate([1, 0, 0])
+                            cylinder(r = 1.5 / 2, h = 12, center = true);
 }

 module NEMA_screw_positions(type, n = 4) { //! Positions children at the screw holes
--- a/vitamins/toggle.scad
+++ b/vitamins/toggle.scad
@@ -130,7 +130,7 @@ module toggle(type, thickness) { //! Draw specified toggle switch with the nuts
                    rotate([max(angle, 0), 0, 0])
                        if(toggle_paddle_w(type))
                            translate_z(l)
-                                linear_extrude(height = eps, center = true)
+                                linear_extrude(eps, center = true)
                                    intersection() {
                                        circle(d = d1);

@@ -151,7 +151,7 @@ module toggle(type, thickness) { //! Draw specified toggle switch with the nuts
        rows = pins > 3 ? 2 : 1;
        color("gold")
            translate_z(-toggle_depth(type) - toggle_pin_l(type) / 2)
-                linear_extrude(height = toggle_pin_l(type), center = true)
+                linear_extrude(toggle_pin_l(type), center = true)
                    for(i = [0 : pins - 1]) {
                        x = rows < 2 ? 0 : (i % 2) - 0.5;
                        y = rows < 2 ? i - 1 : floor(i / 2) - 1;
--- a/vitamins/transformer.scad
+++ b/vitamins/transformer.scad
@@ -44,7 +44,7 @@ module transformer(type) { //! Draw specified transformer
    vitamin(str("transformer(", type[0], "): Transformer ", tx_part(type)));

    color("silver") {
-        linear_extrude(height = tx_foot_thickness(type))
+        linear_extrude(tx_foot_thickness(type))
            difference() {
                rounded_square([tx_foot_width(type), tx_foot_depth(type)], r = 2);

--- a/vitamins/tubing.scad
+++ b/vitamins/tubing.scad
@@ -37,7 +37,7 @@ module tubing(type, length = 15, forced_id = 0) { //! Draw specified tubing with
    else
        vitamin(str("tubing(", type[0], arg(length, 15), "): ", tubing_material(type), " OD ", original_od, "mm ID ", original_id,"mm x ",length, "mm"));
    color(tubing_colour(type))
-        linear_extrude(height = length, center = true, convexity = 4)
+        linear_extrude(length, center = true, convexity = 4)
            difference() {
                circle(d = od);
                circle(d = id);
--- a/vitamins/variac.scad
+++ b/vitamins/variac.scad
@@ -54,7 +54,7 @@ module variac_holes(type, h = 100) {    //! Drill panel holes for specified vari
 }

 module variac_dial(type)            //! Draw the dial for the specified variac
-    color("silver") linear_extrude(height = variac_dial_thickness(type))
+    color("silver") linear_extrude(variac_dial_thickness(type))
        difference() {
            circle(d = variac_dial_dia(type));

@@ -81,7 +81,7 @@ module variac(type, thickness = 3, dial = true) {   //! Draw the specified varia

    translate_z(-h) {
        color("#A66955") {
-            linear_extrude(height = h)
+            linear_extrude(h)
                difference() {
                    shape();

@@ -89,7 +89,7 @@ module variac(type, thickness = 3, dial = true) {   //! Draw the specified varia
                        circle(screw_radius(variac_screw(type)));
                }

-            linear_extrude(height = h - 10)
+            linear_extrude(h - 10)
                shape();
        }
        color("silver")
--- a/vitamins/veroboard.scad
+++ b/vitamins/veroboard.scad
@@ -86,7 +86,7 @@ module veroboard(type) { //! Draw specified veroboard with missing tracks and tr

    vitamin(str("veroboard(", type[0], "): Veroboard ", holes, " holes x ", strips, "strips"));

-    color(colour) linear_extrude(height = vero_thickness(type))
+    color(colour) linear_extrude(vero_thickness(type))
        difference() {
            rounded_square([length, width], r = 0.5, center = true);

@@ -98,7 +98,7 @@ module veroboard(type) { //! Draw specified veroboard with missing tracks and tr
                circle(r = screw_radius(vero_screw(type)));
        }

-    color(tc) vflip() linear_extrude(height = vero_track_thickness(type))
+    color(tc) vflip() linear_extrude(vero_track_thickness(type))
        difference() {
            vflip()
                for(y = [0 : strips -1])
--- a/vitamins/washer.scad
+++ b/vitamins/washer.scad
@@ -53,7 +53,7 @@ module washer(type) { //! Draw specified washer
    else
        vitamin(str("washer(", type[0], "_washer): Washer ", penny ? "penny " : "", " M", hole, " x ", diameter, "mm x ", thickness, "mm"));
    color(washer_colour(type))
-        linear_extrude(height =  thickness - 0.05)
+        linear_extrude( thickness - 0.05)
            difference() {
                circle(d = diameter);
                circle(d = washer_id(type));
@@ -80,7 +80,7 @@ module star_washer(type) { //! Draw star version of washer
    spoke  = rad - hole / 2;
    vitamin(str("star_washer(", type[0], "_washer): Washer star M", hole, " x ", thickness, "mm"));
    color(star_washer_colour)
-        linear_extrude(height = thickness)
+        linear_extrude(thickness)
            difference() {
                circle(rad);

@@ -123,7 +123,7 @@ module printed_washer(type, name = false) { //! Create printed washer
    or = washer_radius(type);
    ir = washer_id(type) / 2;
    color(pp1_colour)
-        linear_extrude(height = t, center = false, convexity = 2)
+        linear_extrude(t, center = false, convexity = 2)
            poly_ring(or, ir);

    if($children)
--- a/vitamins/wire.scad
+++ b/vitamins/wire.scad
@@ -23,8 +23,8 @@
 include <../utils/core/core.scad>
 include <zipties.scad>

-module wire(color, strands, length, strand = 0.2)   //! Add stranded wire to the BOM
-    vitamin(str(": Wire ", color, " ", strands, "/", strand, "mm strands, length ",length, "mm"));
+module wire(colour, strands, length, strand = 0.2)   //! Add stranded wire to the BOM
+    vitamin(str(": Wire ", colour, " ", strands, "/", strand, "mm strands, length ",length, "mm"));

 module ribbon_cable(ways, length)                   //! Add ribbon cable to the BOM
    vitamin(str(": Ribbon cable ", ways, " way ", length, "mm"));
--- a/vitamins/ziptie.scad
+++ b/vitamins/ziptie.scad
@@ -53,7 +53,7 @@ module ziptie(type, r, t = 0) //! Draw specified ziptie wrapped around radius ``
    vitamin(str("ziptie(", type[0], ", ", r, "): Ziptie ", width, "mm x ", len, "mm min length"));

    color(ziptie_colour(type)){
-        linear_extrude(height = width, center = true)
+        linear_extrude(width, center = true)
            difference() {
                rounded_polygon(outside_path, tangents);
                rounded_polygon(inside_path);
--- a/vitamins/zipties.scad
+++ b/vitamins/zipties.scad
@@ -17,7 +17,7 @@
 // If not, see <https://www.gnu.org/licenses/>.
 //

-// [width, thickness, [latch_x, latch_y, latch_z], color, tail]
+// [width, thickness, [latch_x, latch_y, latch_z], colour, tail]
 small_ziptie = ["small_ziptie", 2.5, 1.0, [4.7, 4.25, 3.0], "white", 25];
 ziptie_3mm   = ["ziptie_3mm",   3.0, 1.0, [5.4, 5.44, 4.5], "white", 25];
 ziptie_3p6mm = ["ziptie_3p6mm", 3.6, 1.2, [6.4, 6.62, 4.7], "white", 25];
Author	SHA1	Message	Date
Chris Palmer	bc4e18d788	The assembly module now has a big parameter to force large or small views.	2020-04-04 12:06:14 +01:00
Chris Palmer	f5980b4703	Made the ground surfaces of steppers lighter.	2020-04-02 19:54:30 +01:00
Chris Palmer	7b3d7fab55	Fixed some more colour spellings	2020-03-29 21:36:11 +01:00
Chris Palmer	654571a70e	Colour now always spelt colour except the call to color().	2020-03-29 20:39:17 +01:00
Chris Palmer	e8abcde52f	Removed the height parameter from linear_extrude	2020-03-29 20:18:57 +01:00
Chris Palmer	390957fdd0	Added MT3608 and TP4065 PCBs. Perfboards now have their own row in the test to shorten the picture.	2020-03-28 10:54:06 +00:00
Chris Palmer	bde8cbe7a6	Added cutout for trimpot10.	2020-03-28 10:51:43 +00:00
Chris Palmer	fbe8533a42	Added function to get the height of pcb carriers.	2020-03-27 17:30:35 +00:00