Replaced grey constants with a function grey().

Done to reduced the number of global constants.

global_defs.scad

@@ -52,14 +52,7 @@ $fs = extrusion_width / 2;
 
 function round_to_layer(z) = ceil(z / layer_height) * layer_height;
 // Some additional named colours
-grey20                          = [0.2, 0.2, 0.2];
+function grey(n) = [0.01, 0.01, 0.01] * n;                                          //! Generate a shade of grey to pass to color().
-grey30                          = [0.3, 0.3, 0.3];
-grey40                          = [0.4, 0.4, 0.4];
-grey50                          = [0.5, 0.5, 0.5];
-grey60                          = [0.6, 0.6, 0.6];
-grey70                          = [0.7, 0.7, 0.7];
-grey80                          = [0.8, 0.8, 0.8];
-grey90                          = [0.9, 0.9, 0.9];
 gold                            = [255/255, 215/255, 0/255];
 brass                           = [255/255, 220/255, 100/255];
 silver                          = [0.75, 0.75, 0.75];

printed/ssr_shroud.scad

@@ -135,7 +135,7 @@ module ssr_shroud_fastened_assembly(type, cable_d, thickness, name) //! Assembly
 
             *translate_z(cable_d / 2)
                 rotate([90, 0, 0])
-                    stl_colour(grey20)
+                    stl_colour(grey(20))
                         cylinder(d = cable_d, h = 20, center = true);
         }
 }

tests/PCB.scad

@@ -34,7 +34,7 @@ TMC2130 = ["TMC2130", "TMC2130",
     [
         [  10,  1,  0, "-2p54header", 8, 1 ,undef, "blue" ],
         [  10, 13,  0, "-2p54header", 8, 1],
-        [  12,  7,  0, "-chip", 6, 4, 1, grey20 ],
+        [  12,  7,  0, "-chip", 6, 4, 1, grey(20) ],
         // mock up a heat sink
         [  10,  7,  0, "block", 9, 9,  2, TMC2130HeatSinkColor ],
         [  10, 11,  0, "block", 9, 1, 11, TMC2130HeatSinkColor ],
@@ -65,7 +65,7 @@ test_pcb = ["TestPCB", "Test PCB",
         [ 10,  20,   0, "2p54boxhdr", 4, 2],
         [ 10,  30,   0, "2p54socket", 6, 1],
         [ 25,  30,   0, "2p54socket", 4, 1, false, 0, false, "red" ],
-        [ 10,  40,   0, "chip", 10, 5, 1, grey20],
+        [ 10,  40,   0, "chip", 10, 5, 1, grey(20)],
         [  5,  50,   0, "led", LED3mm, "red"],
         [ 12,  50,   0, "led", LED5mm, "orange"],
         [ 25,  50,   0, "led", LED10mm, "yellow"],
@@ -97,7 +97,7 @@ test_pcb = ["TestPCB", "Test PCB",
         [ 50,  50,   0, "molex_hdr", 2],
         [ 50,  60,   0, "jst_xh", 2],
         [ 50,  70, 180, "term254", 3],
-        [ 63,  70, 180, "term254", 3, undef, grey20],
+        [ 63,  70, 180, "term254", 3, undef, grey(20)],
         [ 75,  70, 180, "gterm508",2, undef, "blue"],
 
         [ 50,  90, 180, "gterm35", 4, [1,2]],
@@ -107,7 +107,7 @@ test_pcb = ["TestPCB", "Test PCB",
 
         [ 55, 110, 180, "gterm635", 2],
         [ 75, 110, 180, "gterm635", 2, undef, "blue"],
-        [ 90, 110, 180, "gterm", gt_5x17, 2, undef, grey20],
+        [ 90, 110, 180, "gterm", gt_5x17, 2, undef, grey(20)],
 
         [ 50, 130, 180, "term35", 4],
         [ 70, 130, 180, "term35", 3, "lime"],

tests/belts.scad

@@ -65,7 +65,7 @@ module belt_test() {
     translate([-25, 0])
         layout([for(b = belts) belt_width(b)], 10)
             rotate([0, 90, 0])
-                belt(belts[$i], [[0, 0, 20], [0, 1, 20]], belt_colour = $i%2==0 ? grey90 : grey20, tooth_colour = $i%2==0 ? grey70 : grey50);
+                belt(belts[$i], [[0, 0, 20], [0, 1, 20]], belt_colour = $i%2==0 ? grey(90) : grey(20), tooth_colour = $i%2==0 ? grey(70) : grey(50));
 }
 
 if($preview)

tests/rails.scad

@@ -33,7 +33,7 @@ module rails()
             nut = screw_nut(screw);
             washer = screw_washer(screw);
 
-            rail_assembly(rail, length, rail_travel(rail, length) / 2, $i<2 ? grey20 : "green", $i<2 ? grey20 : "red");
+            rail_assembly(rail, length, rail_travel(rail, length) / 2, $i<2 ? grey(20) : "green", $i<2 ? grey(20) : "red");
 
             rail_screws(rail, length, sheet + nut_thickness(nut, true) + washer_thickness(washer));
 

vitamins/belt.scad

@@ -41,7 +41,7 @@ function no_point(str) = chr([for(c = str) if(c == ".") ord("p") else ord(c)]);
 // We model the belt path at the pitch radius of the pulleys and the pitch line of the belt to get an accurate length.
 // The belt is then drawn by offseting each side from the pitch line.
 //
-module belt(type, points, gap = 0, gap_pt = undef, belt_colour = grey20, tooth_colour = grey50) { //! Draw a belt path given a set of points and pitch radii where the pulleys are. Closed loop unless a gap is specified
+module belt(type, points, gap = 0, gap_pt = undef, belt_colour = grey(20), tooth_colour = grey(50)) { //! Draw a belt path given a set of points and pitch radii where the pulleys are. Closed loop unless a gap is specified
     width = belt_width(type);
     pitch = belt_pitch(type);
     thickness = belt_thickness(type);

vitamins/blower.scad

@@ -39,7 +39,7 @@ function blower_top(type)         = type[14]; //! Thickness of the top
 function blower_wall(type)        = type[15]; //! Side wall thickness
 function blower_lug(type)         = type[16]; //! Height of the lugs
 
-fan_colour = grey20;
+fan_colour = grey(20);
 
 module blower(type) { //! Draw specified blower
     length = blower_length(type);

vitamins/button.scad

@@ -46,7 +46,7 @@ module square_button(type, colour = "yellow") { //! Draw square button with spec
     pitch = (w/ 2 - wall - rivit * 0.75);
     stem = square_button_cap_stem(type);
 
-    color(grey20) {
+    color(grey(20)) {
         rounded_rectangle([w, w, h - 0.5], r = wall, center = false);
 
         for(x = [-1, 1], y = [-1, 1])

vitamins/circlip.scad

@@ -33,7 +33,7 @@ function circlip_a(type)         = type[5];     //! Size of the lugs
 function circlip_b(type)         = type[6];     //! Widest part of the taper
 function circlip_d5(type)        = type[7];     //! Plier hole diameter
 
-circlip_colour = grey20;
+circlip_colour = grey(20);
 closed_angle = 25;
 
 module internal_circlip(type, open = 0) { //! Draw specified internal circlip, open = 0, for nominal size installed, 1 for relaxed uninstalled, -1 for squeezed to install

vitamins/d_connector.scad

@@ -23,9 +23,9 @@
 include <../utils/core/core.scad>
 use <../utils/thread.scad>
 
-d_pillar_colour                   = grey90;
+d_pillar_colour                   = grey(90);
-d_plug_shell_colour               = grey80;
+d_plug_shell_colour               = grey(80);
-d_plug_insulator_colour           = grey20;
+d_plug_insulator_colour           = grey(20);
 
 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

vitamins/dip.scad

@@ -91,7 +91,7 @@ module dil_socket(rows, w, pitch = inch(0.1)) {
     hole = [0.8, 0.5];
     pin_l = 3;
 
-    color(grey20) {
+    color(grey(20)) {
         linear_extrude(h)
             difference() {
                 square([width, length], center = true);
@@ -129,7 +129,7 @@ module dip(n, part, size, w, pitch, pin) { //! Draw DIP package
     D = [3, 0.6];
 
     translate_z(pdip_pin_s(pin)) {
-        color(grey20) {
+        color(grey(20)) {
             rotate([90, 0, 0])
                 linear_extrude(size.x, center = true)
                     difference() {

vitamins/extrusion.scad

@@ -122,7 +122,7 @@ module extrusion(type, length, center = true, cornerHole = false) { //! Draw the
 
     vitamin(str("extrusion(", type[0], ", ", length, arg(cornerHole, false, "cornerHole"), "): Extrusion ", type[0], " x ", length, "mm"));
 
-    color(grey90)
+    color(grey(90))
         linear_extrude(length, center = center)
             extrusion_cross_section(type, cornerHole);
 }

vitamins/fan.scad

@@ -28,7 +28,7 @@ use <nut.scad>
 use <washer.scad>
 use <../utils/tube.scad>
 
-fan_colour = grey20;
+fan_colour = grey(20);
 
 function fan_width(type)          = type[0];    //! Width of square
 function fan_depth(type)          = type[1];    //! Depth of fan

vitamins/fuseholder.scad

@@ -61,7 +61,7 @@ module fuseholder(thickness) { //! Fuseholder with nut in place for specified pa
     //
     // Nut
     //
-    colour = grey40;
+    colour = grey(40);
     vflip()
         translate_z(thickness)
             explode(height) {

vitamins/hot_ends.scad

@@ -33,8 +33,8 @@
 //                                                                                       h      t     s   t              t     t
 //                                                                                              h
 //
-JHeadMk4  = ["JHeadMk4",  jhead, "JHead MK4",           64,  5.1, 16,    50, grey20,     12,    4.64, 14, [0, 2.94, -5], 20,   20];
+JHeadMk4  = ["JHeadMk4",  jhead, "JHead MK4",           64,  5.1, 16,    50, grey(20),     12,    4.64, 14, [0, 2.94, -5], 20,   20];
-JHeadMk5  = ["JHeadMk5",  jhead, "JHead MK5",         51.2,  5.1, 16,    40, grey20,     12,    4.64, 13, [0, 2.38, -5], 20,   20];
+JHeadMk5  = ["JHeadMk5",  jhead, "JHead MK5",         51.2,  5.1, 16,    40, grey(20),     12,    4.64, 13, [0, 2.38, -5], 20,   20];
 E3Dv5     = ["E3Dv5",     e3d,   "E3D V5 direct",       70,  3.7, 16,  50.1, "silver",   12,    6,    15, [1, 5,  -4.5], 14.5, 28];
 E3Dv6     = ["E3Dv6",     e3d,   "E3D V6 direct",       62,  3.7, 16,  42.7, "silver",   12,    6,    15, [1, 5,  -4.5], 14,   21];
 E3D_clone = ["E3D_clone", e3d,   "E3D clone aliexpress",66,  6.8, 16,    46, "silver",   12,    5.6,  15, [1, 5,  -4.5], 14.5, 21];

vitamins/hygrometer.scad

@@ -51,7 +51,7 @@ module hygrometer() { //! Draw a hygrometer
     vitamin("hygrometer(): Mini LCD Digital Thermometer / Hygrometer");
 
     explode(40) {
-        color(grey30)
+        color(grey(30))
             rotate_extrude()
                 polygon([
                     [0, 0],

vitamins/iec.scad

@@ -134,7 +134,7 @@ module iec(type) { //! Draw specified IEC connector
         }
     }
 
-    color(grey20) {
+    color(grey(20)) {
         // Flange
         flange_t = iec_flange_t(type);
         linear_extrude(flange_t)

vitamins/kp_pillow_block.scad

@@ -25,7 +25,7 @@ use <../utils/tube.scad>
 use <washer.scad>
 use <ball_bearing.scad>
 
-kp_pillow_block_colour = grey70;
+kp_pillow_block_colour = grey(70);
 
 function kp_diameter(type)        = type[1]; //! Rod hole diameter
 function kp_hole_offset(type)     = type[2]; //! Rod hole offset

vitamins/linear_bearing.scad

@@ -24,9 +24,9 @@ include <../utils/core/core.scad>
 
 use <../utils/tube.scad>
 
-bearing_colour = grey70;
+bearing_colour = grey(70);
-groove_colour = grey60;
+groove_colour = grey(60);
-seal_colour = grey30;
+seal_colour = grey(30);
 
 
 function bearing_length(type)           = type[1];   //! Total length

vitamins/microswitches.scad

@@ -24,8 +24,8 @@ small_leg  = [0.9,  3.3, 0.4, 0];
 medium_leg = [0.5,  3.9, 3.2, 1.6, [0, -0.5]];
 large_leg  = [11.4, 0.8, 6.3, 1.8, [1.7, 0]];
 
-small_microswitch  = ["small_microswitch", "DM1-00P-110-3",      5.8, 6.5,  12.8, 0, 2,    [[-3.25, -1.65], [3.25, -1.65]], 2.9, 1.2, [-1.95, 3.75], [[-5.08, -4.95], [0,    -4.9],  [5.08, -4.9]  ], small_leg,  grey20, "white"  ];
+small_microswitch  = ["small_microswitch", "DM1-00P-110-3",      5.8, 6.5,  12.8, 0, 2,    [[-3.25, -1.65], [3.25, -1.65]], 2.9, 1.2, [-1.95, 3.75], [[-5.08, -4.95], [0,    -4.9],  [5.08, -4.9]  ], small_leg,  grey(20), "white"  ];
-medium_microswitch = ["medium_microswitch","SS-01 or SS-5GL",    6.4, 10.2, 19.8, 1, 2.35, [[-4.8,  -2.6 ], [4.7,  -2.6 ]], 3.2, 2,   [-2.8,  5.8 ], [[-8.05, -7.05], [0.75, -7.05], [8.05, -7.05] ], medium_leg, grey20, "burlywood" ];
+medium_microswitch = ["medium_microswitch","SS-01 or SS-5GL",    6.4, 10.2, 19.8, 1, 2.35, [[-4.8,  -2.6 ], [4.7,  -2.6 ]], 3.2, 2,   [-2.8,  5.8 ], [[-8.05, -7.05], [0.75, -7.05], [8.05, -7.05] ], medium_leg, grey(20), "burlywood" ];
 large_microswitch  = ["large_microswitch", "Saia G3 low force", 10.4, 15.9, 28.0, 2, 3.1,  [[-11.1, -5.15], [11.2,  5.15]], 4,   2.75,[-9.1,  9.55], [[19.7,   2.19], [19.7, -3.45],  [8.3, -10.45] ], large_leg,  "ivory", "white" ];
 
 microswitches = [small_microswitch, medium_microswitch, large_microswitch];

vitamins/module.scad

@@ -87,7 +87,7 @@ module mod(type) {  //! Draw specified module
                 linear_extrude(body_l, center = true)
                     profile();
 
-        color(grey20)
+        color(grey(20))
             for(end = [-1, 1])
                 translate([end * body_l / 2, 0, 0])
                     rotate([90, 0, end * 90])

vitamins/nut.scad

@@ -55,7 +55,7 @@ module nut(type, nyloc = false, brass = false, nylon = false) { //! Draw specifi
     vitamin(str("nut(", type[0], arg(nyloc, false, "nyloc"), arg(brass, false, "brass"), arg(nylon, false, "nylon"),
                    "): Nut M", nut_size(type), " x ", thickness, "mm ", desc));
 
-    colour = brass ? brass_colour : nylon ? grey30: grey70;
+    colour = brass ? brass_colour : nylon ? grey(30): grey(70);
     explode(nyloc ? 10 : 0) {
         color(colour) {
             linear_extrude(thickness)
@@ -147,7 +147,7 @@ module sliding_t_nut(type) {
     tabSizeZ = nut_thickness(type);
     holeRadius  = nut_size(type) / 2;
 
-    color(grey80)
+    color(grey(80))
         extrusionSlidingNut(size, tabSizeY1, tabSizeY2, tabSizeZ, holeRadius, 0, hammerNut);
 }
 
@@ -204,7 +204,7 @@ module nut_square(type, brass = false, nylon = false) { //! Draw specified squar
     vitamin(str("nut(", type[0], arg(brass, false, "brass"), arg(nylon, false, "nylon"),
                    "): Nut M", nut_size(type), "nS ", width, " x ", thickness, "mm ", desc));
 
-    colour = brass ? brass_colour : nylon ? grey30 : grey70;
+    colour = brass ? brass_colour : nylon ? grey(30) : grey(70);
     color(colour)
         difference() {
             linear_extrude(thickness) {

vitamins/opengrab.scad

@@ -53,7 +53,7 @@ module opengrab() { //! Draw OpenGrab module
         translate_z(magnet / 2 + eps)
             cube([width, width, magnet - eps], center = true);
 
-    color(grey80) {
+    color(grey(80)) {
         gap = (width - poles * pole_w + 3 * eps) / (poles - 1);
         pitch = pole_w + gap;
         for(i = [0 : poles - 1])
@@ -84,7 +84,7 @@ module opengrab() { //! Draw OpenGrab module
 module opengrab_target() { //! Draw OpenGrab target
     vitamin("opengrab_target(): OpenGrab  silicon steel target plate");
 
-     color(grey80)
+     color(grey(80))
         linear_extrude(target)
             difference() {
                 square([width, width], center = true);

vitamins/panel_meter.scad

@@ -87,7 +87,7 @@ module panel_meter(type) { //! Draw panel mounted LCD meter module
         translate([x * (bezel.x / 2 - bevel), y * (bezel.y / 2 - bevel)])
             rounded_cylinder(r = r, r2 = bevel, h = bezel.z);
 
-    color(grey30) union() {
+    color(grey(30)) union() {
         //
         // Bezel and aperture
         //

vitamins/panel_meters.scad

@@ -25,8 +25,8 @@
 PZEM021   = ["PZEM021", "Peacefair PZEM-021 AC digital multi-function meter", [84.6, 44.7, 24.4], [89.6, 49.6, 2.3], 1.5, [1, 1], [51, 30, 5], [1.3, 10, 6], 15.5, 0];
 PZEM001   = ["PZEM001", "Peacefair PZEM-001 AC digital multi-function meter", [62  , 52.5, 24.4], [67,   57.5, 2.0], 2.0, [1, 1], [61, 46,-3], [1.2, 10, 6], 15.5, 0,
              [36, 36, 1.9], [0, 0], false, 0, 0, [
-                [[25,  8, 0], [0, 0, 2], 4, grey90],
+                [[25,  8, 0], [0, 0, 2], 4, grey(90)],
-                [[25, -8, 0], [0, 0, 2], 4, grey90],
+                [[25, -8, 0], [0, 0, 2], 4, grey(90)],
 
             ]];
 

vitamins/pcb.scad

@@ -248,7 +248,7 @@ module rj45(cutout = false) { //! Draw RJ45 Ethernet connector
                         cube([h, w, eps], center = true);
                 }
 
-                color(grey30) {
+                color(grey(30)) {
                     linear_extrude(l - 0.2, center = true)
                         difference() {
                             square([h - 0.1, w - 0.1], center = true);
@@ -279,7 +279,7 @@ module jack(cutout = false) { //! Draw 3.5mm jack
             rotate([0, 90, 0])
                 cylinder(d = d + 2 * panel_clearance, h = 100);
         else
-            color(grey20)
+            color(grey(20))
                 rotate([0, 90, 0]) {
                     linear_extrude(l / 2)
                         difference() {
@@ -508,7 +508,7 @@ module barrel_jack(cutout = false) { //! Draw barrel power jack
     if(cutout)
         ;
     else {
-        color(grey20) rotate([0, 90, 0]) {
+        color(grey(20)) rotate([0, 90, 0]) {
             linear_extrude(l, center = true) {
                 difference() {
                     translate([-h / 2, 0])
@@ -580,7 +580,7 @@ module uSD(size, cutout = false) { //! Draw uSD socket
                         cube([size.x, size.z, t], center = true);
                 }
             if(w > 0)
-                color(grey20)
+                color(grey(20))
                     rotate([90, 0, 90])
                         translate_z(t)
                             linear_extrude(size.y - t, center = true)
@@ -608,7 +608,7 @@ module flex(cutout = false) { //! Draw flexistrip connector
     if(cutout)
         ;
     else {
-        color(grey30) {
+        color(grey(30)) {
             translate_z(0.5)
                 cube([l, w, 1], center = true);
 
@@ -664,7 +664,7 @@ module flat_flex(cutout = false) { //! Draw flat flexistrip connector as used on
     if(cutout)
         ;
     else {
-        color(grey30) {
+        color(grey(30)) {
             translate([w / 2 - w1, 0, h1 / 2])
                 rotate([90, 0, 90])
                     linear_extrude(w1)
@@ -676,7 +676,7 @@ module flat_flex(cutout = false) { //! Draw flat flexistrip connector as used on
                         }
 
         }
-        color(grey90) {
+        color(grey(90)) {
             translate([-w / 2 + w3 / 2, 0, h3 / 2])
                 cube([w3, l3, h3], center = true);
 
@@ -886,7 +886,7 @@ module pcb_component(comp, cutouts = false, angle = undef) { //! Draw pcb compon
         if(show(comp, "2p54header"))    pin_header(2p54header, comp[4], comp[5], param(6, false), false, cutouts, colour = param(7, undef));
         if(show(comp, "2p54boxhdr"))    box_header(2p54header, comp[4], comp[5], param(6, false), cutouts);
         if(show(comp, "2p54socket"))    pin_socket(2p54header, comp[4], comp[5], param(6, false), param(7, 0), param(8, false), cutouts, param(9, undef));
-        if(show(comp, "chip"))          chip(comp[4], comp[5], comp[6], param(7, grey30), cutouts);
+        if(show(comp, "chip"))          chip(comp[4], comp[5], comp[6], param(7, grey(30)), cutouts);
         if(show(comp, "rj45"))          rj45(cutouts);
         if(show(comp, "usb_A"))         usb_Ax1(cutouts);
         if(show(comp, "usb_Ax2"))       usb_Ax2(cutouts);
@@ -923,7 +923,7 @@ module pcb_component(comp, cutouts = false, angle = undef) { //! Draw pcb compon
             if(show(comp, "molex_hdr"))     molex_254(comp[4]);
             if(show(comp, "jst_xh"))        jst_xh_header(jst_xh_header, comp[4], param(5, false), param(6, "white"), param(7, undef));
             if(show(comp, "potentiometer")) potentiometer(param(4, 5), param(5, 9));
-            if(show(comp, "buzzer"))        buzzer(param(4, 9), param(5, 12), param(6, grey20));
+            if(show(comp, "buzzer"))        buzzer(param(4, 9), param(5, 12), param(6, grey(20)));
         }
     }
 }

vitamins/pcbs.scad

@@ -112,7 +112,7 @@ DuetE = ["DuetE", "Duet 2 Ethernet electronics",
                                                                      [109.8, -58.8,   0, "chip", inch(0.03), inch(0.06), 1, "red"],             // Bed heater
 
                                                                      [ 2.3,  -37.2,   0, "chip", 3.6, 4.8, 2.0, "silver"],  // Reset switch
-                                                                     [ 0.0,  -37.2,   0, "chip", 2.0, 2.6, 1.4, grey20],    // Reset button
+                                                                     [ 0.0,  -37.2,   0, "chip", 2.0, 2.6, 1.4, grey(20)],    // Reset button
                                                                     ],
                                                                     [": Micro SD card", ": Cat 5 patch cable 300mm"]];
 

vitamins/pillars.scad

@@ -34,8 +34,8 @@ M3x13_hex_pillar       = ["M3x13_hex_pillar",       "hex",       3, 13, 5/cos(30
 M3x20_hex_pillar       = ["M3x20_hex_pillar",       "hex",       3, 20, 5/cos(30), 5/cos(30),  6, 6, "silver",  silver,  -8, 8];
 M3x20_nylon_pillar     = ["M3x20_nylon_pillar",     "nylon",     3, 20, 8,         5/cos(30),  0, 6, "white",   brass,   -6, 6];
 M4x17_nylon_pillar     = ["M4x17_nylon_pillar",     "nylon",     4, 20, 8,         5/cos(30),  0, 6, "white",   brass,   -6, 6];
-M3x20_nylon_hex_pillar = ["M3x20_nylon_hex_pillar", "hex nylon", 3, 20, 8/cos(30), 8/cos(30),  6, 6,  grey20,   grey20,  -6, 6];
+M3x20_nylon_hex_pillar = ["M3x20_nylon_hex_pillar", "hex nylon", 3, 20, 8/cos(30), 8/cos(30),  6, 6,  grey(20),   grey(20),  -6, 6];
-M3x10_nylon_hex_pillar = ["M3x10_nylon_hex_pillar", "hex nylon", 3, 10,5.5/cos(30),5.5/cos(30),6, 6,  grey20,   grey20,  -6, 6];
+M3x10_nylon_hex_pillar = ["M3x10_nylon_hex_pillar", "hex nylon", 3, 10,5.5/cos(30),5.5/cos(30),6, 6,  grey(20),   grey(20),  -6, 6];
 
 
 pillars = [M2x16_brass_pillar, M3x13_hex_pillar, M3x20_hex_pillar, M3x20_nylon_pillar, M4x17_nylon_pillar, M3x10_nylon_hex_pillar, M3x20_nylon_hex_pillar];

vitamins/pin_headers.scad

@@ -24,8 +24,8 @@
 //                          h     l     w    w     c
 //                                                         c
 //
-2p54header = ["2p54header", 2.54, 11.6, 3.2, 0.66, "gold", grey20, 8.5];
+2p54header = ["2p54header", 2.54, 11.6, 3.2, 0.66, "gold", grey(20), 8.5];
-jst_xh_header = ["JST XH header",2.5,10,3.4, 0.64, "gold", grey90, 7];
+jst_xh_header = ["JST XH header",2.5,10,3.4, 0.64, "gold", grey(90), 7];
 
 pin_headers = [ 2p54header ];
 

vitamins/psu.scad

@@ -76,7 +76,7 @@ module terminal_block(type, ways) { //! Draw a power supply terminal block
     contact_h = 0.4;
     washer_t = 1.2;
     translate([0, -tl]) {
-        color(grey20) {
+        color(grey(20)) {
             cube([depth, tl, h2]);
 
             translate([depth2, 0])

vitamins/rail.scad

@@ -65,7 +65,7 @@ module carriage_hole_positions(type) { //! Position children over screw holes
                 children();
 }
 
-module carriage(type, rail, end_colour = grey20, wiper_colour = grey20) { //! Draw the specified carriage
+module carriage(type, rail, end_colour = grey(20), wiper_colour = grey(20)) { //! Draw the specified carriage
     total_l = carriage_length(type);
     block_l = carriage_block_length(type);
     block_w = carriage_width(type);
@@ -82,7 +82,7 @@ module carriage(type, rail, end_colour = grey20, wiper_colour = grey20) { //! Dr
             square([w , rail_height(rail) + 0.2]);
     }
 
-    color(grey90) {
+    color(grey(90)) {
         rotate([90, 0, 90])
             linear_extrude(block_l, center = true)
                  difference() {
@@ -132,7 +132,7 @@ module rail(type, length) { //! Draw the specified rail
 
     vitamin(str("rail(", type[0], ", ", length, "): Linear rail ", type[0], " x ", length, "mm"));
 
-    color(grey90) {
+    color(grey(90)) {
         linear_extrude(height - rail_bore_depth(type)) difference() {
             square([length, width], center = true);
             rail_hole_positions(type, length)
@@ -166,7 +166,7 @@ module rail(type, length) { //! Draw the specified rail
     }
 }
 
-module rail_assembly(type, length, pos, carriage_end_colour = grey20, carriage_wiper_colour = grey20) { //! Rail and carriage assembly
+module rail_assembly(type, length, pos, carriage_end_colour = grey(20), carriage_wiper_colour = grey(20)) { //! Rail and carriage assembly
     rail(type, length);
 
     translate([pos, 0])

vitamins/rocker.scad

@@ -53,7 +53,7 @@ module rocker(type, colour) { //! Draw the specified rocker switch
     rocker_r2 = (sqr(x2) + sqr(y2)) / (2 * y2);
 
     explode(30) {
-        color(grey20) {
+        color(grey(20)) {
             linear_extrude(rocker_flange_t(type))
                 difference() {
                     rounded_square([rocker_flange_w(type), rocker_flange_h(type)], 0.5);
@@ -65,7 +65,7 @@ module rocker(type, colour) { //! Draw the specified rocker switch
                 rounded_rectangle([rocker_width(type), rocker_height(type), rocker_depth(type) + eps], 0.5, center = false);
         }
         if(rocker_pivot(type))
-            color(colour ? colour : grey30)
+            color(colour ? colour : grey(30))
                 translate_z(rocker_pivot(type))
                     rotate([90, 0, 90])
                         linear_extrude(rocker_w, center = true)

vitamins/rod.scad

@@ -25,9 +25,9 @@
 include <../utils/core/core.scad>
 use <../utils/thread.scad>
 
-rod_colour = grey80;
+rod_colour = grey(80);
-studding_colour = grey70;
+studding_colour = grey(70);
-leadscrew_colour = grey70;
+leadscrew_colour = grey(70);
 
 module rod(d , l, center = true) { //! Draw a smooth rod with specified diameter and length
     vitamin(str("rod(", d, ", ", l, "): Smooth rod ", d, "mm x ", l, "mm"));

vitamins/screw.scad

@@ -82,7 +82,7 @@ module screw(type, length, hob_point = 0, nylon = false) { //! Draw specified sc
                         : length;
     d = 2 * screw_radius(type);
     pitch = metric_coarse_pitch(d);
-    colour = nylon || head_type == hs_grub ? grey40 : grey80;
+    colour = nylon || head_type == hs_grub ? grey(40) : grey(80);
 
     module shaft(socket = 0, headless = false) {
         point = screw_nut(type) ? 0 : 3 * rad;

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_colour = grey90;
+sks_bearing_block_colour = grey(90);
 
 module scs_bearing_block(type) { //! Draw the specified SCS bearing block
     vitamin(str("scs_bearing_block(", type[0], "): ", type[0], " bearing block"));

vitamins/sk_bracket.scad

@@ -24,7 +24,7 @@ include <../utils/fillet.scad>
 
 use <washer.scad>
 
-sk_bracket_colour = grey70;
+sk_bracket_colour = grey(70);
 
 function sk_diameter(type)        = type[1]; //! Rod hole diameter
 function sk_hole_offset(type)     = type[2]; //! Rod hole offset
@@ -85,7 +85,7 @@ module sk_bracket(type) { //! SK shaft support bracket
             }
     }
     // Add the retaining bolt. No hole was cut, since it is only for display.
-    color(grey20)
+    color(grey(20))
         translate([P / 2 - screw_head_height(M3_cap_screw) / 2, (F - h + d / 2) / 2, 0])
             rotate([0,90,0])
                 not_on_bom() no_explode()

vitamins/stepper_motor.scad

@@ -41,8 +41,8 @@ function NEMA_holes(type)       = [-NEMA_hole_pitch(type) / 2, NEMA_hole_pitch(t
 function NEMA_big_hole(type)    = NEMA_boss_radius(type) + 0.2; //! Clearance hole for the big boss
 
 stepper_body_colour = "black";
-stepper_cap_colour  = grey50;
+stepper_cap_colour  = grey(50);
-stepper_machined_colour = grey90;
+stepper_machined_colour = grey(90);
 
 module NEMA_outline(type) //! 2D outline
     intersection() {

vitamins/washer.scad

@@ -25,8 +25,8 @@
 include <../utils/core/core.scad>
 include <../utils/sweep.scad>
 
-soft_washer_colour = grey20;
+soft_washer_colour = grey(20);
-hard_washer_colour = grey80;
+hard_washer_colour = grey(80);
 star_washer_colour = brass;
 
 function washer_size(type)            = type[1]; //! Noiminal size