Merge branch 'martinbudden-teardrop_chamfer'

made with asterisks.
If an image is include in the first section the default image is supressed.

docs/usage.md

@@ -119,6 +119,16 @@ A more optimised approach for large projects is to include [NopSCADlib/core.scad
 That only has the a small set of utilities and the global settings in [global_defs.scad](../global_defs.scad) plus screws, nuts and washers that are required by a lot of other vitamins.
 Any other vitamins used need to be included explicitly. One can copy the includes or use a line from [NopSCADlib/lib.scad](../lib.scad).
 
+### Project Description
+
+A description of the project can be placed in comments in Markdown format before the first include file.
+By default this is followed by a picture of the main assembly unless the description contains any pictures.
+
+The description can be divided into two or three sections using //! ***, which is a Markdown horizontal rule in a comment.
+If there is a second section it is placed after the table of contents and a third section will be placed after the parts list.
+
+If an actual horizontal rule is desired the alternative Markdown markup //! --- can be used.
+
 ### Parametric parts.
 
 Modules that generate parts and assemblies need to take no parameters so that they can be called from the framework to make the STL files and assembly views, etc.

gallery/readme.md

@@ -43,11 +43,11 @@ Bench power supply built around an ATX PSU.
 * The green LED shows the power good signal.
 * Dummy loads keep the outputs in range.
 
-
-
 ![](Lab_ATX_PSU.png)
 
 
+
+
 <a name="TOP"></a>
 ## Laser Load
 15kV dummy load for testing CO2 laser PSUs
@@ -77,11 +77,11 @@ Earth leakage can be measured Canadian CSA style by disconnected the neutral lin
 ## Mains Box
 Mains isolated and variable supply with metering.
 
-
-
 ![](Mains_Box.png)
 
 
+
+
 <a name="TOP"></a>
 ## SunBot
 A solar tracker to keep a solar panel pointing at the sun.
@@ -95,13 +95,15 @@ WiFi enabled remote control turntable for photography
 
 ![](Turntable.png)
 
+Was actually made from DiBond but shown made with carbon fibre here.
+
 
 <a name="TOP"></a>
 ## Variac
 Motorised variac with WiFi control, see [hydraraptor.blogspot.com/2018/04/esp8266-spi-spy](https://hydraraptor.blogspot.com/2018/04/esp8266-spi-spy.html)
 
-
-
 ![](Variac.png)
 
 
+
+

global_defs.scad

@@ -26,7 +26,7 @@
 //  Setting $bom after including lib overrides bom in the libs but not in the local file.
 //  Setting $_bom in the local file overrides it in the local file but not in the libs.
 //
-//function is_undef(x) = x == undef;
+rr_green = [0, 146/255, 0];                                               // RepRap logo colour
 
 $_bom           = is_undef($bom)             ? 0      : $bom;             // 0 no bom, 1 assemblies and stls, 2 vitamins as well
 $exploded       = is_undef($explode)         ? 0      : $explode;         // 1 for exploded view
@@ -34,7 +34,7 @@ layer_height    = is_undef($layer_height)    ? 0.25   : $layer_height;    // lay
 extrusion_width = is_undef($extrusion_width) ? 0.5    : $extrusion_width; // filament width when printing
 nozzle          = is_undef($nozzle)          ? 0.45   : $nozzle;          // 3D printer nozzle
 cnc_bit_r       = is_undef($cnc_bit_r)       ? 1.2    : $cnc_bit_r;       // minimum tool radius when milling 2D objects
-pp1_colour      = is_undef($pp1_colour)      ? [0, 146/255, 0] : $pp1_colour; // printed part colour 1, RepRap logo colour
+pp1_colour      = is_undef($pp1_colour)      ? rr_green : $pp1_colour;    // printed part colour 1, RepRap logo colour
 pp2_colour      = is_undef($pp2_colour)      ? "Crimson"  : $pp2_colour;  // printed part colour 2
 pp3_colour      = is_undef($pp3_colour)      ? "SteelBlue" : $pp3_colour; // printed part colour 3
 pp4_colour      = is_undef($pp4_colour)      ? "darkorange" : $pp4_colour;// printed part colour 4

libtest.scad

@@ -351,7 +351,7 @@ modules_y = iecs_y + 60;
 ssrs_y = modules_y + 80;
 blowers_y = ssrs_y + 60;
 batteries_y = blowers_y + 100;
-steppers_y = batteries_y + 70;
+steppers_y = batteries_y + 55;
 panel_meters_y = steppers_y + 70;
 extrusions_y = panel_meters_y + 80;
 

printed/drag_chain.scad

@@ -251,7 +251,7 @@ module drag_chain_link(type, start = false, end = false, check_kids = true) { //
 }
 
 // Need to use a wrapper because can't define nested modules in an assembly
-module _drag_chain_assembly(type, pos = 0) {
+module _drag_chain_assembly(type, pos = 0, render = false) {
     s = drag_chain_size(type);
     x = (1 + exploded()) * s.x;
     r = drag_chain_radius(type) * x / s.x;
@@ -278,8 +278,11 @@ module _drag_chain_assembly(type, pos = 0) {
     module link(n)                                  // Position and colour link with origin at the hinge hole
         translate([-z / 2, 0, -z / 2]) {
             stl_colour(n < 0 || n == npoints - 1 ? pp3_colour : n % 2 ? pp1_colour : pp2_colour)
-                drag_chain_link(type, start = n == -1, end = n == npoints - 1, check_kids = false)
-                    let($fasteners = 0) children();
+                render_if(render)
+                    drag_chain_link(type, start = n == -1, end = n == npoints - 1, check_kids = false)
+                        let($fasteners = 0)
+                            children();
+
             let($fasteners = 1) children();
         }
 
@@ -307,15 +310,15 @@ module _drag_chain_assembly(type, pos = 0) {
 
 //! 1. Remove the support material from the links with side cutters.
 //! 1. Clip the links together with the special ones at the ends.
-module drag_chain_assembly(type, pos = 0)  //! Drag chain assembly
+module drag_chain_assembly(type, pos = 0, render = false)  //! Drag chain assembly
     assembly(str(drag_chain_name(type), "_drag_chain"), big = true)
         if($children == 2)
-            _drag_chain_assembly(type, pos) {
+            _drag_chain_assembly(type, pos, render) {
                 children(0);
                 children(1);
             }
         else if($children == 1)
-            _drag_chain_assembly(type, pos)
+            _drag_chain_assembly(type, pos, render)
                 children(0);
         else
-            _drag_chain_assembly(type, pos);
+            _drag_chain_assembly(type, pos, render);

scripts/blurb.py

@@ -39,8 +39,6 @@ def _scrape_blurb(lines):
         if b:
             break
         text += t
-    if len(text):
-        text += '\n'
     return text
 
 def scrape_blurb(scad_file):
@@ -49,6 +47,16 @@ def scrape_blurb(scad_file):
         lines = file.readlines()
     return _scrape_blurb(lines)
 
+def split_blurb(lines):
+    """ Split blurb on horizontal rules."""
+    blurbs = [""]
+    for line in lines.split('\n')[:-1]:
+        if re.match(r'\*{3,}',line):
+            blurbs.append("")
+        else:
+            blurbs[-1] += line + '\n'
+    return blurbs
+
 def scrape_module_blurb(lines):
     """ Find the Markup lines before the last function or module. """
     text = ""

scripts/doc_scripts.py

@@ -60,7 +60,8 @@ They should work with both Python 2 and Python 3.
                         break
                 if not blurb:
                     print("Missing description for", file)
-                print("| `%s` | %s |" % (file, blurb), file = doc_file)
+                else:
+                    print("| `%s` | %s |" % (file, blurb), file = doc_file)
 
     with open(dir + "/readme.html", "wt") as html_file:
         do_cmd(("python -m markdown -x tables " + doc_name).split(), html_file)

scripts/gallery.py

@@ -52,7 +52,7 @@ def gallery(force):
             if os.path.isfile(document):
                 with open(document, 'rt') as readme:
                     for line in readme.readlines():
-                        match = re.match(r"^.*!(\[.*\]\(.*\)).*$", line)
+                        match = re.search(r"!(\[.*\]\(.*\))", line)
                         if match:
                             image = match.group(0)
                             if image.startswith('![Main Assembly](assemblies/'):

scripts/openscad.py

@@ -18,14 +18,14 @@
 #
 
 #
-# Run openscad
+#! Run `openscad.exe` and capture `stdout` and `stderr` in `openscad.log` as well as printing to the console.
 #
 from __future__ import print_function
 
 import subprocess, sys
 
 def run_list(args, silent = False, verbose = False):
-    cmd = ["openscad.exe"] + args
+    cmd = ["openscad"] + args
     if not silent:
         for arg in cmd:
             print(arg, end=" ")

scripts/readme.md

@@ -9,11 +9,10 @@ They should work with both Python 2 and Python 3.
 | `bom.py` | Generates BOM files for the project. |
 | `c14n_stl.py` | OpenSCAD produces randomly ordered STL files. This script re-orders them consistently so that GIT can tell if they have changed or not. |
 | `doc_scripts.py` | Makes this document and doc/usage.md. |
-| `dxf.py` |  |
-| `dxf2pdf.py` |  |
 | `dxfs.py` | Generates DXF files for all the routed parts listed on the BOM or a specified list. |
 | `gallery.py` | Finds projects and adds them to the gallery. |
 | `make_all.py` | Generates all the files for a project by running `bom.py`, `stls.py`, `dxfs.py`, `render.py` and `views.py`. |
+| `openscad.py` | Run `openscad.exe` and capture `stdout` and `stderr` in `openscad.log` as well as printing to the console. |
 | `panels.py` | Panelises DXF files so they can be routed together by running scad files found in the `panels` directory. |
 | `platters.py` | Generates build plates of STL files for efficient printing by running scad files found in the `platters` directory. |
 | `render.py` | Renders STL and DXF files to PNG for inclusion in the build instructions. |

scripts/views.py

@@ -35,6 +35,7 @@ import json
 import blurb
 import bom
 import shutil
+import re
 from colorama import Fore
 
 def is_assembly(s):
@@ -217,12 +218,17 @@ def views(target, do_assemblies = None):
             if not main_file:
                 raise Exception("can't find source for main_assembly")
             text = blurb.scrape_blurb(source_dir + '/' + main_file)
+            blurbs = blurb.split_blurb(text)
             if len(text):
-                print(text, file = doc_file, end = '')
+                print(blurbs[0], file = doc_file)
             else:
                 if print_mode:
                     print(Fore.MAGENTA + "Missing project description" + Fore.WHITE)
-            print('![Main Assembly](assemblies/%s.png)\n' % flat_bom[-1]["name"].replace('_assembly', '_assembled'), file = doc_file)
+            #
+            # Only add the image if the first blurb section doesn't contain one.
+            #
+            if not re.search(r'\!\[.*\]\(.*\)', blurbs[0], re.MULTILINE):
+                print('![Main Assembly](assemblies/%s.png)\n' % flat_bom[-1]["name"].replace('_assembly', '_assembled'), file = doc_file)
             eop(print_mode, doc_file, first = True)
             #
             # Build TOC
@@ -234,6 +240,8 @@ def views(target, do_assemblies = None):
                 cap_name = titalise(name)
                 print('1. [%s](#%s)' % (cap_name, name), file = doc_file)
             print(file = doc_file)
+            if len(blurbs) > 1:
+                print(blurbs[1], file = doc_file)
             eop(print_mode, doc_file)
             #
             # Global BOM
@@ -283,6 +291,8 @@ def views(target, do_assemblies = None):
                     print("| %s | %s |" % (pad(grand_total, 2, 1), pad('Total %s count' % headings[t], 2)), file = doc_file)
 
             print(file = doc_file)
+            if len(blurbs) > 2:
+                print(blurbs[2], file = doc_file)
             eop(print_mode, doc_file)
             #
             # Assembly instructions

tests/printed_box.scad

@@ -107,7 +107,7 @@ assembly("box1") {
                 screw_and_washer(foot_screw(foot), 6);
     }
 
-    translate_z(height + top_thickness + base_thickness + eps) vflip()
+    translate_z(height + top_thickness + base_thickness + 2 * eps) vflip()
          %render() box1_base_stl();
 }
 

tests/screws.scad

@@ -52,7 +52,7 @@ module screws() {
                     screw(screw, length);
             }
         }
-        translate([80, 20])
+        translate([20, 40, -15])
             polysink_stl();
 }
 

tests/stepper_motors.scad

@@ -22,9 +22,9 @@ include <../vitamins/stepper_motors.scad>
 use <../utils/layout.scad>
 
 module stepper_motors()
-    layout([for(s = stepper_motors) NEMA_width(s)], 5) let(m = stepper_motors[$i]) {
+    layout([for(s = stepper_motors) NEMA_width(s)], 5, no_offset = true) let(m = stepper_motors[$i]) {
         rotate(180)
-            NEMA(m, 0, m == NEMA17M || m == NEMA17M8);
+            NEMA(m, 0, m == NEMA17P || m == NEMA17M || m == NEMA17M8);
 
         translate_z(4)
             NEMA_screws(m, M3_pan_screw, n = $i, earth = $i > 4 ? undef : $i - 1);

utils/core/teardrops.scad

@@ -24,7 +24,7 @@
 //! Using teardrop_plus() or setting the plus option on other modules will elongate the teardrop vertically by the layer height, so when sliced the staircase tips
 //! do not intrude into the circle. See <https://hydraraptor.blogspot.com/2020/07/horiholes-2.html>
 //
-module teardrop(h, r, center = true, truncate = true, chamfer = 0, plus = false) { //! For making horizontal holes that don't need support material, set `truncate = false` to make traditional RepRap teardrops that don't even need bridging
+module teardrop(h, r, center = true, truncate = true, chamfer = 0, chamfer_both_ends = true, plus = false) { //! For making horizontal holes that don't need support material, set `truncate = false` to make traditional RepRap teardrops that don't even need bridging
     module teardrop_2d(r, truncate) {
         er = layer_height / 2 - eps;    // Extrustion edge radius
         R = plus ? r + er : r;          // Corrected radius
@@ -52,7 +52,7 @@ module teardrop(h, r, center = true, truncate = true, chamfer = 0, plus = false)
         extrude_if(h, center)
             teardrop_2d(r, truncate);
 
-    teardrop_chamfer(h, center, chamfer) {
+    teardrop_chamfer(h, center, chamfer, chamfer_both_ends) {
         linear_extrude(eps, center = true)
             teardrop_2d(r + chamfer / 2, truncate);
 
@@ -62,7 +62,7 @@ module teardrop(h, r, center = true, truncate = true, chamfer = 0, plus = false)
     }
 }
 
-module semi_teardrop(h, r, d = undef, center = true, chamfer = 0, plus = false) { //! A semi teardrop in the positive Y domain
+module semi_teardrop(h, r, d = undef, center = true, chamfer = 0, chamfer_both_ends = true, plus = false) { //! A semi teardrop in the positive Y domain
     module semi_teardrop_2d(r, d)
         intersection() {
             R = is_undef(d) ? r : d / 2;
@@ -77,7 +77,7 @@ module semi_teardrop(h, r, d = undef, center = true, chamfer = 0, plus = false)
         extrude_if(h, center)
             semi_teardrop_2d(r, d);
 
-    teardrop_chamfer(h, center, chamfer) {
+    teardrop_chamfer(h, center, chamfer, chamfer_both_ends) {
         linear_extrude(eps, center = true)
             semi_teardrop_2d(r + chamfer / 2, d);
 
@@ -87,10 +87,10 @@ module semi_teardrop(h, r, d = undef, center = true, chamfer = 0, plus = false)
     }
 }
 
-module teardrop_plus(h, r, center = true, truncate = true, chamfer = 0) //! Slightly elongated teardrop to allow for the 3D printing staircase effect
-    teardrop(h, r, center, truncate, chamfer, plus = true);
+module teardrop_plus(h, r, center = true, truncate = true, chamfer = 0, chamfer_both_ends = true) //! Slightly elongated teardrop to allow for the 3D printing staircase effect
+    teardrop(h, r, center, truncate, chamfer, chamfer_both_ends, plus = true);
 
-module tearslot(h, r, w, center = true, chamfer = 0, plus = false) { //! A horizontal slot that doesn't need support material
+module tearslot(h, r, w, center = true, chamfer = 0, chamfer_both_ends = true, plus = false) { //! A horizontal slot that doesn't need support material
     module tearslot_2d(r, w)
         hull()
             for(x = [-1, 1])
@@ -99,7 +99,7 @@ module tearslot(h, r, w, center = true, chamfer = 0, plus = false) { //! A horiz
     extrude_if(h, center)
         tearslot_2d(r, w);
 
-    teardrop_chamfer(h, center, chamfer) {
+    teardrop_chamfer(h, center, chamfer, chamfer_both_ends) {
         linear_extrude(eps, center = true)
             tearslot_2d(r + chamfer / 2, w);
 
@@ -109,7 +109,7 @@ module tearslot(h, r, w, center = true, chamfer = 0, plus = false) { //! A horiz
     }
 }
 
-module vertical_tearslot(h, r, l, center = true, chamfer = 0, plus = false) { //! A vertical slot that doesn't need support material
+module vertical_tearslot(h, r, l, center = true, chamfer = 0, chamfer_both_ends = true, plus = false) { //! A vertical slot that doesn't need support material
     module vertical_tearslot_2d(r, l)
         hull()
             for(y = [-1, 1])
@@ -119,7 +119,7 @@ module vertical_tearslot(h, r, l, center = true, chamfer = 0, plus = false) { //
     extrude_if(h, center)
         vertical_tearslot_2d(r, l);
 
-    teardrop_chamfer(h, center, chamfer) {
+    teardrop_chamfer(h, center, chamfer, chamfer_both_ends) {
         linear_extrude(eps, center = true)
             vertical_tearslot_2d(r + chamfer / 2, l);
 
@@ -129,10 +129,10 @@ module vertical_tearslot(h, r, l, center = true, chamfer = 0, plus = false) { //
     }
 }
 
-module teardrop_chamfer(h, center, chamfer) { //! Helper module for adding chamfer to a teardrop
+module teardrop_chamfer(h, center, chamfer, chamfer_both_ends) { //! Helper module for adding chamfer to a teardrop
     if(h && chamfer)
         translate_z(center ? 0 : h / 2)
-            for(m = [0, 1])
+            for(m = chamfer_both_ends ? [0, 1] : [1])
                 mirror([0, 0, m])
                     translate_z((h - eps ) / 2)
                         hull()

utils/rounded_polygon.scad

@@ -18,13 +18,14 @@
 //
 
 //
-//! Draw a polygon with rounded corners. Each element of the vector is the XY coordinate and a radius. Radius can be negative for a concave corner.
+//! Draw a polygon with rounded corners. Each element of the vector is the XY coordinate and a radius in clockwise order.
+//! Radius can be negative for a concave corner.
 //!
 //! Because the tangents need to be calculated to find the length these can be calculated separately and re-used when drawing to save calculating them twice.
 //
 include <../utils/core/core.scad>
 
-function circle_tangent(p1, p2) =
+function circle_tangent(p1, p2) = //! Compute the clockwise tangent between two circles represented as [x,y,r]
     let(
         r1 = p1[2],
         r2 = p2[2],
@@ -32,11 +33,8 @@ function circle_tangent(p1, p2) =
         dy = p2.y - p1.y,
         d = sqrt(dx * dx + dy * dy),
         theta = atan2(dy, dx) + acos((r1 - r2) / d),
-        xa = p1.x +(cos(theta) * r1),
-        ya = p1.y +(sin(theta) * r1),
-        xb = p2.x +(cos(theta) * r2),
-        yb = p2.y +(sin(theta) * r2)
-    )[ [xa, ya], [xb, yb] ];
+        v = [cos(theta), sin(theta)]
+    )[ p1 + r1 * v, p2 + r2 * v ];
 
 function rounded_polygon_tangents(points) = //! Compute the straight sections needed to draw and to compute the lengths
     let(len = len(points))

vitamins/blowers.scad

@@ -24,7 +24,7 @@
 //                                                   h                                                   h    s                                         t         t
 RB5015 = ["RB5015", "Blower Runda RB5015",           51.3, 51, 15, 31.5, M4_cap_screw, 26, [27.3, 25.4], 4.5, [[4.3, 45.4], [47.3,7.4]],     20,   14,  1.5, 1.3, 1.2, 15];
 PE4020 = ["PE4020", "Blower Pengda Technology 4020", 40,   40, 20, 27.5, M3_cap_screw, 22, [21.5, 20  ], 3.2, [[37,3],[3,37],[37,37]],       29.3, 17,  1.7, 1.2, 1.3, 13];
-BL40x10 =["BL40x10","Square radial 4010",            40,   40,9.5, 27,   M2_cap_screw, 16, [24,   20  ], 2.4, [[2,2],[38,2],[2,38],[38,38]], 30  , 9.5, 1.5, 1.5, 1.1, 1.5];
+BL40x10 =["BL40x10","Square radial fan 4010",        40,   40,9.5, 27,   M2_cap_screw, 16, [24,   20  ], 2.4, [[2,2],[38,2],[2,38],[38,38]], 30  , 9.5, 1.5, 1.5, 1.1, 1.5];
 
 blowers = [BL40x10, PE4020, RB5015];
 

vitamins/hygrometer.scad

@@ -34,15 +34,16 @@ hygrometer_hole_r = 21.3;
 slot_w = 5.5;
 
 module hygrometer_hole(h = 0) { //! Drill the hole for a hygrometer
-    round(cnc_bit_r) {
-        intersection() {
-            drill(hygrometer_hole_r, h);
+    extrude_if(h)
+        round(cnc_bit_r) {
+            intersection() {
+                drill(hygrometer_hole_r, 0);
 
-            rotate(30)
-                square([slot_w + 2 * cnc_bit_r, 100], center = true);
+                rotate(30)
+                    square([slot_w + 2 * cnc_bit_r, 100], center = true);
+            }
+            drill((od + 0.2) / 2, 0);
         }
-        drill((od + 0.2) / 2, h);
-    }
 }
 
 function hygrometer_or() = flange_d / 2; //! The outside radius of a hygrometer
@@ -54,13 +55,13 @@ module hygrometer() { //! Draw a hygrometer
         color(grey(30))
             rotate_extrude()
                 polygon([
-                    [0, 0],
-                    [aperture_d / 2, 0],
-                    [aperture_d / 2, flange_t],
-                    [flange_d2 / 2,   flange_t2],
-                    [flange_d / 2,    flange_t],
-                    [flange_d / 2,    0],
-                    [od / 2,          0],
+                    [0,                0],
+                    [aperture_d / 2,   0],
+                    [aperture_d / 2,   flange_t],
+                    [flange_d2 / 2,    flange_t2],
+                    [flange_d / 2,     flange_t],
+                    [flange_d / 2,     0],
+                    [od / 2,           0],
                     [od / 2,          -h],
                     [0,               -h]
                 ]);

vitamins/jhead.scad

@@ -194,12 +194,14 @@ module jhead_hot_end_assembly(type, filament, naked = false) { //! Assembly with
             if(exploded())
                 heater_components();
             else
-                intersection() {
-                    heater_components();
+                if(naked)                       // hide the wires when not exploded
+                    intersection() {
+                        heater_components();
 
-                    if(naked)
-                        color("grey") cylinder(r = 12, h = 100, center = true);
-                    else
-                        cube(1, true);             // hide the wires when not exploded
-                }
+                        color("grey")
+                            cylinder(r = 12, h = 100, center = true);
+                    }
+                else
+                    hidden()                    // hidden by the tape
+                        heater_components();
 }

vitamins/magnet.scad

@@ -33,7 +33,7 @@ module magnet(type) { //! Draw specified magnet
     h = magnet_h(type);
     r = magnet_r(type);
 
-    //vitamin(str("magnet(", type[0], "): Magnet ", od, "mm diameter, ", h, "mm high", id ? str(", ", id, "mm bore") : "" ));
+    vitamin(str("magnet(", type[0], "): Magnet ", od, "mm diameter, ", h, "mm high", id ? str(", ", id, "mm bore") : "" ));
 
     or = od / 2;
     ir = id / 2;

vitamins/magnets.scad

@@ -23,7 +23,7 @@
 //                          od,        id,        h,         r
 MAG8x4x4p2 = ["MAG8x4x4p2", 8,         4.2,       4,         0.5];
 MAG484     = ["MAG484",     inch(1/4), inch(1/8), inch(1/4), 0.5];
-MAG5x8     = ["MAG484",     8,         0,         5,         0.5];
+MAG5x8     = ["MAG5x8",     8,         0,         5,         0.5];
 
 magnets = [MAG8x4x4p2, MAG484, MAG5x8];
 

vitamins/microswitch.scad

@@ -41,6 +41,8 @@ function microswitch_button_clr(type)= type[14];    //! Button colour
 function microswitch_lower_extent(type) = let(leg = microswitch_leg(type)) min([for(pos = microswitch_legs(type)) pos.y - leg.y / 2]); //! How far legs extend downwards
 function microswitch_right_extent(type) = let(leg = microswitch_leg(type)) max([microswitch_length(type) / 2, for(pos = microswitch_legs(type)) pos.x + leg.x / 2]); //! How far legs extend right
 
+function microswitch_size(type) = [microswitch_length(type), microswitch_width(type), microswitch_thickness(type)]; //! Body size
+
 module microswitch_hole_positions(type) //! Place children at the hole positions
 {
     for(hole = microswitch_holes(type))

vitamins/pulley.scad

@@ -64,6 +64,7 @@ module pulley(type) { //! Draw a pulley
     hl = pulley_hub_length(type);
     w = pulley_width(type);
     r1 = pulley_bore(type) / 2;
+    screw_z = pulley_screw_z(type);
 
     or =  od / 2;
     ir =  pulley_ir(type);
@@ -100,33 +101,42 @@ module pulley(type) { //! Draw a pulley
                 }
     }
 
-    module screw_holes() {
-        if(pulley_screws(type))
-            translate_z(pulley_screw_z(type))
-                for(i = [0 : pulley_screws(type) - 1])
-                    rotate([-90, 0, i * -90])
-                        cylinder(r = screw_radius(pulley_screw(type)), h = 100);
-    }
+    module hub()
+        rotate_extrude() translate([r1, 0]) {
+            if(hl)
+                square([pulley_hub_dia(type) / 2 - r1,  hl]);
 
-    color("silver") {
-        render() difference() {
-            rotate_extrude() translate([r1, 0]) {
-                if(hl)
-                    square([pulley_hub_dia(type) / 2 - r1,  hl]);
-
-                for(z = [pulley_hub_length(type), hl + ft + w])
-                    translate([0, z])
-                        square([pulley_flange_dia(type) / 2 - r1, ft]);
-            }
-            if(pulley_screw_z(type) < hl)
-                screw_holes();
+            for(z = [pulley_hub_length(type), hl + ft + w])
+                translate([0, z])
+                    square([pulley_flange_dia(type) / 2 - r1, ft]);
         }
-        render() difference() { // T5 pulleys have screw through the teeth
+
+    module screw_holes()
+        translate_z(screw_z)
+            for(i = [0 : pulley_screws(type) - 1])
+                rotate([-90, 0, i * -90])
+                    cylinder(r = screw_radius(pulley_screw(type)), h = 100);
+
+    color(silver) {
+        if(screw_z && screw_z < hl)
+            render()
+                difference() {
+                    hub();
+
+                    screw_holes();
+                }
+        else
+            hub();
+
+        if(screw_z && screw_z > hl) // T5 pulleys have screw through the teeth
+            render()
+                difference() {
+                    core();
+
+                    screw_holes();
+                }
+        else
             core();
-
-            if(pulley_screw_z(type) > hl)
-                screw_holes();
-        }
     }
 }
 

vitamins/pulleys.scad

@@ -29,9 +29,10 @@ include <belts.scad>
 //
 T5x10_pulley         = ["T5x10_pulley",         "T5",    10, 15,    T5x6,  11.6, 7.9, 7,   5, 19.3, 1.7, 3, 10.7, M3_grub_screw, 1];
 T2p5x16_pulley       = ["T2p5x16_pulley",       "T2.5",  16, 12.16, T2p5x6,   8,  16, 5.7, 5, 16.0, 1.0, 6, 3.75, M4_grub_screw, 1];
-GT2x20um_pulley      = ["GT2x20um_pulley",      "GT2UM", 20, 12.22, GT2x6,  7.5,  18, 6.5, 5, 18.0, 1.0, 6, 3.75, M3_grub_screw, 2];
-GT2x20ob_pulley      = ["GT2x20ob_pulley",      "GT2OB", 20, 12.22, GT2x6,  7.5,  16, 5.5, 5, 16.0, 1.0, 6, 3.25, M3_grub_screw, 2];
-GT2x12_pulley        = ["GT2x12_pulley",        "GT2RD", 12,  7.15, GT2x6,  6.5,  12, 5.5, 4, 12.0, 1.0, 4, 3.0,  M3_grub_screw, 2];
+GT2x20um_pulley      = ["GT2x20um_pulley",      "GT2UM", 20, 12.22, GT2x6,  7.5,  18, 6.5, 5, 18.0, 1.0, 6, 3.75, M3_grub_screw, 2]; //Ultimaker
+GT2x20ob_pulley      = ["GT2x20ob_pulley",      "GT2OB", 20, 12.22, GT2x6,  7.5,  16, 5.5, 5, 16.0, 1.0, 6, 3.25, M3_grub_screw, 2]; //Openbuilds
+GT2x16_pulley        = ["GT2x16_pulley",        "GT2",   16,  9.75, GT2x6,  7.0,  13, 5,   5, 13.0, 1.0,4.5,3.0,  M3_grub_screw, 2];
+GT2x12_pulley        = ["GT2x12_pulley",        "GT2RD", 12,  7.15, GT2x6,  6.5,  12, 5.5, 4, 12.0, 1.0, 4, 3.0,  M3_grub_screw, 2]; //Robotdigg
 GT2x20_toothed_idler = ["GT2x20_toothed_idler", "GT2",   20, 12.22, GT2x6,  6.5,  18, 0,   4, 18.0, 1.0, 0, 0,    false,         0];
 GT2x20_plain_idler   = ["GT2x20_plain_idler",   "GT2",    0, 12.0,  GT2x6,  6.5,  18, 0,   4, 18.0, 1.0, 0, 0,    false,         0];
 GT2x16_toothed_idler = ["GT2x16_toothed_idler", "GT2",   16,  9.75, GT2x6,  6.5,  14, 0,   3, 14.0, 1.0, 0, 0,    false,         0];
@@ -42,6 +43,7 @@ pulleys = [T5x10_pulley,
            T2p5x16_pulley,
            GT2x20um_pulley,
            GT2x20ob_pulley,
+           GT2x16_pulley,
            GT2x12_pulley,
            GT2x20_toothed_idler,
            GT2x20_plain_idler,

vitamins/rail.scad

@@ -53,7 +53,7 @@ function rail_holes(type, length) = //! Number of holes in a rail given its `len
 module rail_hole_positions(type, length, first = 0, screws = 100, both_ends = true) { //! Position children over screw holes
     pitch = rail_pitch(type);
     holes = rail_holes(type, length);
-    last = first + screws;
+    last = first + min(screws, both_ends ? ceil(holes / 2) : holes);
     for(i = [first : holes - 1], j = holes - 1 - i)
         if(i < last || both_ends && (j >= first && j < last))
             translate([i * pitch - length / 2 + (length - (holes - 1) * pitch) / 2, 0])
@@ -181,19 +181,19 @@ module rail_assembly(type, length, pos, carriage_end_colour = grey(20), carriage
         carriage(rail_carriage(type), type,  carriage_end_colour, carriage_wiper_colour);
 }
 
-module rail_screws(type, length, thickness, screws = 100) { //! Place screws in the rail
+module rail_screws(type, length, thickness, screws = 100, index_screws = undef) { //! Place screws in the rail
     screw = rail_screw(type);
     end_screw = rail_end_screw(type);
     screw_len = screw_longer_than(rail_screw_height(type, screw) + thickness);
     end_screw_len = screw_longer_than(rail_screw_height(type, end_screw) + thickness);
 
-    index_screws = screws > 2 ? 1 : 2;
+    index_screws = is_undef(index_screws) ? screws > 2 ? 1 : 2 : index_screws;
 
     translate_z(rail_screw_height(type, end_screw))
         rail_hole_positions(type, length, 0, index_screws)
             screw(end_screw, end_screw_len);
 
     translate_z(rail_screw_height(type, screw))
-        rail_hole_positions(type, length, index_screws, min(screws, rail_holes(type, length)) - 2 * index_screws)
+        rail_hole_positions(type, length, index_screws, screws - index_screws)
             screw(screw, screw_len);
 }

vitamins/rocker.scad

@@ -36,6 +36,8 @@ function rocker_bezel(type)    = type[10];  //! Bezel width
 function rocker_pivot(type)    = type[11];  //! Pivot distance from the back of the flange
 function rocker_button(type)   = type[12];  //! How far the button extends from the bezel
 function rocker_spades(type)   = type[13];  //! Spade types and positions
+function rocker_size(type)     = [rocker_width(type), rocker_height(type), rocker_depth(type)]; //! Width, height, and depth in a vector
+function rocker_slot(type)     = [rocker_slot_w(type), rocker_slot_h(type)]; //! Rocker slot in a vector
 
 module rocker(type, colour) { //! Draw the specified rocker switch
     vitamin(str("rocker(", type[0], "): ", rocker_part(type)));
@@ -87,6 +89,6 @@ module rocker(type, colour) { //! Draw the specified rocker switch
     }
 }
 
-module rocker_hole(type, h = 0) //! Make a hole to accept a rocker switch, by default 2D, set h for 3D
+module rocker_hole(type, h = 0, rounded = true) //! Make a hole to accept a rocker switch, by default 2D, set h for 3D
     extrude_if(h)
-        rounded_square([rocker_slot_w(type), rocker_slot_h(type)], 1, center = true);
+        rounded_square([rocker_slot_w(type), rocker_slot_h(type)], rounded ? 1 : 0, center = true);

vitamins/screw.scad

@@ -262,7 +262,7 @@ module screw_countersink(type, drilled = true) { //! Countersink shape
             if(drilled)
                 cylinder(h = head_height + eps, r1 = 0, r2 = head_rad + head_t);
             else
-                intersection() {
+                render() intersection() {
                     cylinder(h = head_height + eps, r1 = 0, r2 = head_rad + head_t);
 
                     cylinder(h = head_height + eps, r = head_rad + eps);
@@ -295,8 +295,10 @@ module screw_polysink(type, h = 100, alt = false) { //! A countersink hole made
                         poly_cylinder(r = r, h = lh, center = false);
                 }
 
-            translate_z(layers * layer_height)
-                poly_cylinder(r = rmin, h = h / 2 - layers * layer_height, center = false);
+            remainder = h / 2 - layers * layer_height;
+            if(remainder > 0)
+                translate_z(layers * layer_height)
+                    poly_cylinder(r = rmin, h = remainder, center = false);
         }
 }
 

vitamins/screws.scad

@@ -78,6 +78,7 @@ M8_cap_screw     = ["M8_cap", "M8 cap",         hs_cap,   8, 13,  8,    4.3, 6.0
 M2_cs_cap_screw  = ["M2_cs_cap","M2 cs cap",    hs_cs_cap,2, 3.8, 0,    0.65,1.3, 16,  M2_washer, M2_nut,   M2_tap_radius,    M2_clearance_radius];
 M3_cs_cap_screw  = ["M3_cs_cap","M3 cs cap",    hs_cs_cap,3, 6.0, 0,    1.05,2.0, 18,  M3_washer, M3_nut,   M3_tap_radius,    M3_clearance_radius];
 M4_cs_cap_screw  = ["M4_cs_cap","M4 cs cap",    hs_cs_cap,4, 8.0, 0,    1.49,2.5, 20,  M4_washer, M4_nut,   M4_tap_radius,    M4_clearance_radius];
+M5_cs_cap_screw  = ["M5_cs_cap","M5 cs cap",    hs_cs_cap,5,10.0, 0,    3.00,3.0, 22,  M5_washer, M5_nut,   M5_tap_radius,    M5_clearance_radius];
 
 M2_dome_screw    = ["M2_dome", "M2 dome",       hs_dome,  2, 3.5, 1.3,  0.6, 1.3, 16,  M2_washer, M2_nut,   M2_tap_radius,    M2_clearance_radius];
 M3_dome_screw    = ["M3_dome", "M3 dome",       hs_dome,  3, 5.7, 1.65, 1.04,2.0, 18,  M3_washer, M3_nut,   M3_tap_radius,    M3_clearance_radius];
@@ -107,13 +108,13 @@ No6_screw        = ["No6", "No6 pan wood",      hs_pan, 3.5, 6.7, 2.2,    0,   0
 No6_cs_screw     = ["No6_cs", "No6 cs wood",    hs_cs,  3.5, 7.0, 0,      0,   0, 0,   M4_washer, false,    No6_pilot_radius, No6_clearance_radius];
 
 screw_lists = [
-[ M2_cap_screw,    M2p5_cap_screw, M3_cap_screw,    M4_cap_screw, M5_cap_screw, M6_cap_screw, M8_cap_screw],
+[ M2_cap_screw,    M2p5_cap_screw, M3_cap_screw,    M4_cap_screw,    M5_cap_screw, M6_cap_screw, M8_cap_screw],
 [ 0,               0,              M3_low_cap_screw],
-[ M2_cs_cap_screw, 0,              M3_cs_cap_screw, M4_cs_cap_screw],
+[ M2_cs_cap_screw, 0,              M3_cs_cap_screw, M4_cs_cap_screw, M5_cs_cap_screw],
 [ M2_dome_screw,   0,              M3_dome_screw,   M4_dome_screw],
-[ 0,               0,              M3_hex_screw,    M4_hex_screw, M5_hex_screw, M6_hex_screw, M8_hex_screw],
-[ 0,               M2p5_pan_screw, M3_pan_screw,    M4_pan_screw, M5_pan_screw, M6_pan_screw, No632_pan_screw],
-[ No2_screw,       0,              No4_screw,       No6_screw,    No6_cs_screw],
+[ 0,               0,              M3_hex_screw,    M4_hex_screw,    M5_hex_screw, M6_hex_screw, M8_hex_screw],
+[ 0,               M2p5_pan_screw, M3_pan_screw,    M4_pan_screw,    M5_pan_screw, M6_pan_screw, No632_pan_screw],
+[ No2_screw,       0,              No4_screw,       No6_screw,       No6_cs_screw],
 [ 0,               0,              M3_grub_screw,   M4_grub_screw]
 ];
 

vitamins/stepper_motors.scad

@@ -27,10 +27,11 @@ NEMA17  = ["NEMA17",   42.3, 47,     53.6/2, 25,     11,     2,     5,     24,
 NEMA17M = ["NEMA17M",  42.3, 40,     53.6/2, 25,     11,     2,     5,     20,          31,    [12.5, 11]];
 NEMA17M8= ["NEMA17M8", 42.3, 40,     53.6/2, 25,     11,     2,     8,     [280, 8, 4], 31,    [12.5, 11]];
 NEMA17S = ["NEMA17S",  42.3, 34,     53.6/2, 25,     11,     2,     5,     24,          31,    [8,     8]];
+NEMA17P = ["NEMA17P",  42.3, 26.5,   53.6/2, 25,     11,     2,     5,     26.5,        31,    [10,    8]];
 NEMA16  = ["NEMA16",   39.5, 19.2,   50.6/2, 50.6/2, 11,     2,     5,     12,          31,    [8,     8]];
 NEMA14  = ["NEMA14",   35.2, 36,     46.4/2, 21,     11,     2,     5,     21,          26,    [8,     8]];
 NEMA23  = ["NEMA23",   56.4, 51.2,   75.7/2, 35,   38.1/2, 1.6,   6.35,    24,        47.1,    [8,     8]];
 
-stepper_motors = [NEMA14, NEMA16, NEMA17S, NEMA17M, NEMA17, NEMA23];
+stepper_motors = [NEMA14, NEMA16, NEMA17P, NEMA17S, NEMA17M, NEMA17, NEMA23];
 
 use <stepper_motor.scad>

vitamins/veroboard.scad

@@ -41,6 +41,8 @@ function vero_track_width(type)    = vero_pitch(type) * 0.8; //! The width of th
 function vero_length(type) = vero_holes(type) * vero_pitch(type); //! Length of the board
 function vero_width(type) = vero_strips(type) * vero_pitch(type); //! Width of the board
 
+function vero_size(type) = [vero_length(type), vero_width(type), vero_thickness(type)]; //! Board size
+
 module solder_meniscus(type) {
     h = 1;
     r = vero_track_width(type) / 2;