Trimmed the ribbon clamp tape.

Added check for radius too big for corner in rounded_path().
Spiral paths can now have 0 twists.

CHANGELOG.md

@@ -3,6 +3,24 @@
 This changelog is generated by `changelog.py` using manually added semantic version tags to classify commits as breaking changes, additions or fixes.
 
 
+### [v19.9.0](https://github.com/nophead/NopSCADlib/releases/tag/v19.9.0 "show release") Additions [...](https://github.com/nophead/NopSCADlib/compare/v19.8.1...v19.9.0 "diff with v19.8.1")
+*   2022-02-11 [`95b6771`](https://github.com/nophead/NopSCADlib/commit/95b6771811fd48af46b5c2d426c42c04cd8e5af3 "show commit") [C.P.](# "Chris Palmer") Added printed cable clips.
+
+*   2022-02-11 [`ed46cbb`](https://github.com/nophead/NopSCADlib/commit/ed46cbb1470587d4fa3ee4e0e8e0513c82693b1b "show commit") [C.P.](# "Chris Palmer") Fixed `cable_bundle()` bugs and added test.
+Added `cable_bundle_positions()`.
+Can now mark cables as ribbon to force a flat layout.
+
+#### [v19.8.1](https://github.com/nophead/NopSCADlib/releases/tag/v19.8.1 "show release") Fixes [...](https://github.com/nophead/NopSCADlib/compare/v19.8.0...v19.8.1 "diff with v19.8.0")
+*   2022-02-09 [`2a2b7d8`](https://github.com/nophead/NopSCADlib/commit/2a2b7d8bd60f0ea8ad2c428593e7aea1dfa06e9c "show commit") [C.P.](# "Chris Palmer") Added a second example project.
+
+### [v19.8.0](https://github.com/nophead/NopSCADlib/releases/tag/v19.8.0 "show release") Additions [...](https://github.com/nophead/NopSCADlib/compare/v19.7.0...v19.8.0 "diff with v19.7.0")
+*   2022-02-09 [`055b4e7`](https://github.com/nophead/NopSCADlib/commit/055b4e7102ffcc39dc376330636efa79739a6555 "show commit") [C.P.](# "Chris Palmer") Added SOT23 and SOT223 SMD packages.
+`smd_capacitors` can now have a value.
+Wire links can now have zero length to create a vertical wire.
+
+*   2022-02-09 [`00d6efc`](https://github.com/nophead/NopSCADlib/commit/00d6efc3154bbd5597a3336bc8bdaf550e42f56a "show commit") [C.P.](# "Chris Palmer") Added veroboard constructor.
+Documented `solder_meniscus` and made it parametric.
+
 ### [v19.7.0](https://github.com/nophead/NopSCADlib/releases/tag/v19.7.0 "show release") Additions [...](https://github.com/nophead/NopSCADlib/compare/v19.6.0...v19.7.0 "diff with v19.6.0")
 *   2022-02-08 [`1f55097`](https://github.com/nophead/NopSCADlib/commit/1f55097bdd3e4d0164a48dd7ebb3fc5370250ac4 "show commit") [C.P.](# "Chris Palmer") Support for twisted cables.
 Sweep now distbutes twists in proportion to segments lengths.

libtest.scad

@@ -51,6 +51,7 @@ use <tests/blowers.scad>
 use <tests/box_sections.scad>
 use <tests/bulldogs.scad>
 use <tests/buttons.scad>
+use <tests/cable_clip.scad>
 use <tests/cable_strips.scad>
 use <tests/cameras.scad>
 use <tests/camera_housing.scad>
@@ -154,19 +155,46 @@ translate([x5 + 50, cable_grommets_y])
 translate([x5 + 95, cable_grommets_y])
     press_fits();
 
-translate([x5, cable_grommets_y + 60])
+fixing_blocks_y = cable_grommets_y + 60;
+translate([x5, fixing_blocks_y])
     fixing_blocks();
 
-translate([x5, cable_grommets_y + 90])
+corner_blocks_y = fixing_blocks_y + 30;
+translate([x5, corner_blocks_y])
     corner_blocks();
 
-translate([x5, cable_grommets_y + 160])
+feet_y = corner_blocks_y + 70;
+translate([x5, feet_y])
     feet();
 
-translate([x5 + 70, cable_grommets_y + 160])
+translate([x5 + 70, feet_y])
     screw_knobs();
 
-translate([x5, cable_grommets_y + 470]) {
+knobs_y = feet_y + 40;
+translate([640, knobs_y])
+    printed_pulley_test();
+
+translate([x5, knobs_y])
+    knobs();
+
+clips_y = knobs_y + 50;
+translate([x5, clips_y])
+    cable_clips();
+
+strap_y = clips_y + 50;
+translate([x5 + 60, strap_y])
+    strap_handles();
+
+handle_y = strap_y + 50;
+translate([x5, handle_y])
+    handle();
+
+pocket_y = handle_y + 70;
+translate([x5 + 65, pocket_y])
+    pocket_handles();
+
+hinge_y = pocket_y + 100;
+translate([x5, hinge_y]) {
     door_hinges()
         door_latches();
 
@@ -174,29 +202,14 @@ translate([x5, cable_grommets_y + 470]) {
         flat_hinges();
 }
 
-translate([x5, cable_grommets_y + 380])
-    no_explode() socket_boxes();
+pbox_y = hinge_y + 70;
+translate([900, pbox_y])
+    printed_boxes();
 
-translate([640, cable_grommets_y + 200])
-    printed_pulley_test();
-
-translate([x5, cable_grommets_y + 200])
-    knobs();
-
-translate([x5 + 60, cable_grommets_y + 250])
-    strap_handles();
-
-translate([x5, cable_grommets_y + 300])
-    handle();
-
-translate([950, 600])
+box_y = pbox_y + 150;
+translate([950, box_y])
     box_test();
 
-translate([900, 750])
-    pocket_handles();
-
-translate([900, 850])
-    printed_boxes();
 
 translate([950, 1400])
     rotate(-90)
@@ -427,6 +440,9 @@ translate([x2, extrusions_y])
 translate([400, transformers_y])
     transformers();
 
+translate([x4 + 50, transformers_y])
+    no_explode() socket_boxes();
+
 
 belts_y = 0;
 rails_y = belts_y + 200;

printed/cable_clip.scad

@@ -0,0 +1,117 @@
+//
+// NopSCADlib Copyright Chris Palmer 2022
+// nop.head@gmail.com
+// hydraraptor.blogspot.com
+//
+// This file is part of NopSCADlib.
+//
+// NopSCADlib is free software: you can redistribute it and/or modify it under the terms of the
+// GNU General Public License as published by the Free Software Foundation, either version 3 of
+// the License, or (at your option) any later version.
+//
+// NopSCADlib is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+// without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+// See the GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along with NopSCADlib.
+// If not, see <https://www.gnu.org/licenses/>.
+//
+
+//
+//! Cable clips to order. Can be for one or two cables of different sizes.
+//
+include <../core.scad>
+use <../vitamins/wire.scad>
+use <../utils/fillet.scad>
+
+wall = 2;
+
+function cable_clip_width(screw) = max(wall + 2 * screw_clearance_radius(screw) + wall, washer_diameter(screw_washer(screw))); //! Width given the `screw`.
+function cable_clip_height(cable) = cable_height(cable) + wall; //! Height given the `cable`.
+function cable_clip_extent(screw, cable) = screw_clearance_radius(screw) + wall + cable_width(cable) + wall; //! How far it extends from the screw.
+function cable_clip_offset(screw, cable) = screw_clearance_radius(screw) + wall + cable_width(cable) / 2; //! The offset of the cable from the screw
+
+module single_cable_clip(screw, cable, h = 0) {
+    screw_dia = 2 * screw_clearance_radius(screw);
+    height = cable_clip_width(screw);
+    depth = h ? h : cable_height(cable) + wall;
+    w = cable_width(cable);
+    width = wall + w + wall + screw_dia + wall;
+    hole_x = wall + w + wall + screw_dia / 2;
+    rad = min(wall + cable_wire_size(cable) / 2, depth / 2);
+    r = extrusion_width - eps;
+    translate([-hole_x, 0]) difference() {
+        linear_extrude(height)
+            difference() {
+                hull() {
+                    rounded_square([width, 1], r, center = false);
+
+                    translate([width - 1, 0])
+                        rounded_square([1, depth], r, center = false);
+
+                    translate([rad, depth - rad])
+                        circle(r = rad);
+                }
+
+                translate([wall + cable_width(cable) / 2, 0]) {
+                    hull() {
+                        for(p = cable_bundle_positions(cable))
+                            translate(p)
+                                circle(d = cable_wire_size(cable));
+
+                        square([w, eps], center = true);
+                    }
+                    for(side = [-1, 1])
+                        translate([side * w / 2, 0])
+                            hflip(side < 0)
+                                fillet(r = r, h = 0);
+                }
+            }
+
+        translate([hole_x, depth / 2, height / 2])
+            rotate([90,0,0])
+                teardrop_plus(h = depth + 1, r = screw_dia / 2, center = true);
+    }
+}
+
+
+module double_cable_clip(screw, cable1, cable2) {
+    h = max(cable_clip_height(cable1), cable_clip_height(cable2));
+    union() {
+        single_cable_clip(screw, cable1, h);
+
+        mirror([1,0,0]) single_cable_clip(screw, cable2, h);
+    }
+}
+
+module cable_clip(screw, cable1, cable2 = 0) { //! Create the STL for a single cable or two cable clip
+    function clip_str(screw) = str("cable_clip_", screw_radius(screw) * 20);
+    function cable_str(cable) = str("_", cable_wires(cable), "_", round(cable_wire_size(cable) * 10));
+
+    if(cable2) {
+        stl(str(clip_str(screw), cable_str(cable1), cable_str(cable2)));
+
+        double_cable_clip(screw, cable1, cable2);
+    }
+    else {
+        stl(str(clip_str(screw), cable_str(cable1)));
+
+        single_cable_clip(screw, cable1);
+    }
+}
+
+
+module cable_clip_assembly(screw, thickness, cable1, cable2 = 0) { //! Cable clip with the fasteners
+    height = max(cable_clip_height(cable1), cable2 ? cable_clip_height(cable2) : 0);
+
+    stl_colour(pp1_colour) render()
+        translate([0, cable_clip_width(screw) / 2]) rotate([90, 0, 0])
+            cable_clip(screw, cable1, cable2);
+
+    translate_z(height)
+        screw_and_washer(screw, screw_length(screw, height + thickness, 2, nyloc = true));
+
+    translate_z(-thickness)
+        vflip()
+            nut_and_washer(screw_nut(screw), true);
+}

printed/ribbon_clamp.scad

@@ -105,7 +105,7 @@ assembly(let(screw_d = screw_radius(screw) * 2)str("ribbon_clamp_", str_ways(way
 
 module ribbon_clamp_fastened_assembly(ways, thickness, screw = screw) { //! Clamp with fasteners in place
     tape_l = floor(ribbon_clamp_slot(ways));
-    tape_width = 25;
+    tape_width = ribbon_clamp_width(screw) + 2;
     tape_thickness = 0.5;
 
     vitamin(str(": Tape self amalgamating silicone ",tape_l," x 25mm"));

readme.md

@@ -23,30 +23,31 @@ A list of changes classified as breaking, additions or fixes is maintained in [C
 <th align="left"> Vitamins A-H </th><th align="left"> Vitamins I-Q </th><th align="left"> Vitamins R-Z </th><th align="left"> Printed </th><th align="left"> Utilities </th><th align="left"> Core Utilities </th></tr>
 <tr><td> <a href = "#7_segments">7_segments</a> </td><td> <a href = "#IECs">IECs</a> </td><td> <a href = "#Rails">Rails</a> </td><td> <a href = "#Box">Box</a> </td><td> <a href = "#Annotation">Annotation</a> </td><td> <a href = "#BOM">BOM</a> </td></tr>
 <tr><td> <a href = "#Axials">Axials</a> </td><td> <a href = "#Inserts">Inserts</a> </td><td> <a href = "#Ring_terminals">Ring_terminals</a> </td><td> <a href = "#Butt_box">Butt_box</a> </td><td> <a href = "#Bezier">Bezier</a> </td><td> <a href = "#Clip">Clip</a> </td></tr>
-<tr><td> <a href = "#BLDC_motors">BLDC_motors</a> </td><td> <a href = "#Jack">Jack</a> </td><td> <a href = "#Rockers">Rockers</a> </td><td> <a href = "#Cable_grommets">Cable_grommets</a> </td><td> <a href = "#Catenary">Catenary</a> </td><td> <a href = "#Global">Global</a> </td></tr>
-<tr><td> <a href = "#Ball_bearings">Ball_bearings</a> </td><td> <a href = "#LDRs">LDRs</a> </td><td> <a href = "#Rod">Rod</a> </td><td> <a href = "#Camera_housing">Camera_housing</a> </td><td> <a href = "#Core_xy">Core_xy</a> </td><td> <a href = "#Polyholes">Polyholes</a> </td></tr>
-<tr><td> <a href = "#Batteries">Batteries</a> </td><td> <a href = "#LED_meters">LED_meters</a> </td><td> <a href = "#SK_brackets">SK_brackets</a> </td><td> <a href = "#Carriers">Carriers</a> </td><td> <a href = "#Dogbones">Dogbones</a> </td><td> <a href = "#Rounded_rectangle">Rounded_rectangle</a> </td></tr>
-<tr><td> <a href = "#Bearing_blocks">Bearing_blocks</a> </td><td> <a href = "#LEDs">LEDs</a> </td><td> <a href = "#SMDs">SMDs</a> </td><td> <a href = "#Corner_block">Corner_block</a> </td><td> <a href = "#Fillet">Fillet</a> </td><td> <a href = "#Sphere">Sphere</a> </td></tr>
-<tr><td> <a href = "#Belts">Belts</a> </td><td> <a href = "#Leadnuts">Leadnuts</a> </td><td> <a href = "#SSRs">SSRs</a> </td><td> <a href = "#Door_hinge">Door_hinge</a> </td><td> <a href = "#Gears">Gears</a> </td><td> <a href = "#Teardrops">Teardrops</a> </td></tr>
-<tr><td> <a href = "#Blowers">Blowers</a> </td><td> <a href = "#Light_strips">Light_strips</a> </td><td> <a href = "#Screws">Screws</a> </td><td> <a href = "#Door_latch">Door_latch</a> </td><td> <a href = "#Hanging_hole">Hanging_hole</a> </td><td></td></tr>
-<tr><td> <a href = "#Box_sections">Box_sections</a> </td><td> <a href = "#Linear_bearings">Linear_bearings</a> </td><td> <a href = "#Sealing_strip">Sealing_strip</a> </td><td> <a href = "#Drag_chain">Drag_chain</a> </td><td> <a href = "#Horiholes">Horiholes</a> </td><td></td></tr>
-<tr><td> <a href = "#Bulldogs">Bulldogs</a> </td><td> <a href = "#Magnets">Magnets</a> </td><td> <a href = "#Servo_motors">Servo_motors</a> </td><td> <a href = "#Fan_guard">Fan_guard</a> </td><td> <a href = "#Layout">Layout</a> </td><td></td></tr>
-<tr><td> <a href = "#Buttons">Buttons</a> </td><td> <a href = "#Mains_sockets">Mains_sockets</a> </td><td> <a href = "#Shaft_couplings">Shaft_couplings</a> </td><td> <a href = "#Fixing_block">Fixing_block</a> </td><td> <a href = "#Maths">Maths</a> </td><td></td></tr>
-<tr><td> <a href = "#Cable_strips">Cable_strips</a> </td><td> <a href = "#Microswitches">Microswitches</a> </td><td> <a href = "#Sheets">Sheets</a> </td><td> <a href = "#Flat_hinge">Flat_hinge</a> </td><td> <a href = "#Offset">Offset</a> </td><td></td></tr>
-<tr><td> <a href = "#Cameras">Cameras</a> </td><td> <a href = "#Microview">Microview</a> </td><td> <a href = "#Spades">Spades</a> </td><td> <a href = "#Foot">Foot</a> </td><td> <a href = "#Quadrant">Quadrant</a> </td><td></td></tr>
-<tr><td> <a href = "#Circlips">Circlips</a> </td><td> <a href = "#Modules">Modules</a> </td><td> <a href = "#Spools">Spools</a> </td><td> <a href = "#Handle">Handle</a> </td><td> <a href = "#Round">Round</a> </td><td></td></tr>
-<tr><td> <a href = "#Components">Components</a> </td><td> <a href = "#Nuts">Nuts</a> </td><td> <a href = "#Springs">Springs</a> </td><td> <a href = "#Knob">Knob</a> </td><td> <a href = "#Rounded_cylinder">Rounded_cylinder</a> </td><td></td></tr>
-<tr><td> <a href = "#DIP">DIP</a> </td><td> <a href = "#O_ring">O_ring</a> </td><td> <a href = "#Stepper_motors">Stepper_motors</a> </td><td> <a href = "#PCB_mount">PCB_mount</a> </td><td> <a href = "#Rounded_polygon">Rounded_polygon</a> </td><td></td></tr>
-<tr><td> <a href = "#D_connectors">D_connectors</a> </td><td> <a href = "#Opengrab">Opengrab</a> </td><td> <a href = "#Swiss_clips">Swiss_clips</a> </td><td> <a href = "#PSU_shroud">PSU_shroud</a> </td><td> <a href = "#Rounded_triangle">Rounded_triangle</a> </td><td></td></tr>
-<tr><td> <a href = "#Displays">Displays</a> </td><td> <a href = "#PCB">PCB</a> </td><td> <a href = "#Terminals">Terminals</a> </td><td> <a href = "#Pocket_handle">Pocket_handle</a> </td><td> <a href = "#Sector">Sector</a> </td><td></td></tr>
-<tr><td> <a href = "#Extrusion_brackets">Extrusion_brackets</a> </td><td> <a href = "#PCBs">PCBs</a> </td><td> <a href = "#Toggles">Toggles</a> </td><td> <a href = "#Press_fit">Press_fit</a> </td><td> <a href = "#Sweep">Sweep</a> </td><td></td></tr>
-<tr><td> <a href = "#Extrusions">Extrusions</a> </td><td> <a href = "#PSUs">PSUs</a> </td><td> <a href = "#Transformers">Transformers</a> </td><td> <a href = "#Printed_box">Printed_box</a> </td><td> <a href = "#Thread">Thread</a> </td><td></td></tr>
-<tr><td> <a href = "#Fans">Fans</a> </td><td> <a href = "#Panel_meters">Panel_meters</a> </td><td> <a href = "#Tubings">Tubings</a> </td><td> <a href = "#Printed_pulleys">Printed_pulleys</a> </td><td> <a href = "#Tube">Tube</a> </td><td></td></tr>
-<tr><td> <a href = "#Fuseholder">Fuseholder</a> </td><td> <a href = "#Pillars">Pillars</a> </td><td> <a href = "#Variacs">Variacs</a> </td><td> <a href = "#Ribbon_clamp">Ribbon_clamp</a> </td><td></td><td></td></tr>
-<tr><td> <a href = "#Geared_steppers">Geared_steppers</a> </td><td> <a href = "#Pillow_blocks">Pillow_blocks</a> </td><td> <a href = "#Veroboard">Veroboard</a> </td><td> <a href = "#SSR_shroud">SSR_shroud</a> </td><td></td><td></td></tr>
-<tr><td> <a href = "#Green_terminals">Green_terminals</a> </td><td> <a href = "#Pin_headers">Pin_headers</a> </td><td> <a href = "#Washers">Washers</a> </td><td> <a href = "#Screw_knob">Screw_knob</a> </td><td></td><td></td></tr>
-<tr><td> <a href = "#Hot_ends">Hot_ends</a> </td><td> <a href = "#Potentiometers">Potentiometers</a> </td><td> <a href = "#Wire">Wire</a> </td><td> <a href = "#Socket_box">Socket_box</a> </td><td></td><td></td></tr>
-<tr><td> <a href = "#Hygrometer">Hygrometer</a> </td><td> <a href = "#Pulleys">Pulleys</a> </td><td> <a href = "#Zipties">Zipties</a> </td><td> <a href = "#Strap_handle">Strap_handle</a> </td><td></td><td></td></tr>
+<tr><td> <a href = "#BLDC_motors">BLDC_motors</a> </td><td> <a href = "#Jack">Jack</a> </td><td> <a href = "#Rockers">Rockers</a> </td><td> <a href = "#Cable_clip">Cable_clip</a> </td><td> <a href = "#Catenary">Catenary</a> </td><td> <a href = "#Global">Global</a> </td></tr>
+<tr><td> <a href = "#Ball_bearings">Ball_bearings</a> </td><td> <a href = "#LDRs">LDRs</a> </td><td> <a href = "#Rod">Rod</a> </td><td> <a href = "#Cable_grommets">Cable_grommets</a> </td><td> <a href = "#Core_xy">Core_xy</a> </td><td> <a href = "#Polyholes">Polyholes</a> </td></tr>
+<tr><td> <a href = "#Batteries">Batteries</a> </td><td> <a href = "#LED_meters">LED_meters</a> </td><td> <a href = "#SK_brackets">SK_brackets</a> </td><td> <a href = "#Camera_housing">Camera_housing</a> </td><td> <a href = "#Dogbones">Dogbones</a> </td><td> <a href = "#Rounded_rectangle">Rounded_rectangle</a> </td></tr>
+<tr><td> <a href = "#Bearing_blocks">Bearing_blocks</a> </td><td> <a href = "#LEDs">LEDs</a> </td><td> <a href = "#SMDs">SMDs</a> </td><td> <a href = "#Carriers">Carriers</a> </td><td> <a href = "#Fillet">Fillet</a> </td><td> <a href = "#Sphere">Sphere</a> </td></tr>
+<tr><td> <a href = "#Belts">Belts</a> </td><td> <a href = "#Leadnuts">Leadnuts</a> </td><td> <a href = "#SSRs">SSRs</a> </td><td> <a href = "#Corner_block">Corner_block</a> </td><td> <a href = "#Gears">Gears</a> </td><td> <a href = "#Teardrops">Teardrops</a> </td></tr>
+<tr><td> <a href = "#Blowers">Blowers</a> </td><td> <a href = "#Light_strips">Light_strips</a> </td><td> <a href = "#Screws">Screws</a> </td><td> <a href = "#Door_hinge">Door_hinge</a> </td><td> <a href = "#Hanging_hole">Hanging_hole</a> </td><td></td></tr>
+<tr><td> <a href = "#Box_sections">Box_sections</a> </td><td> <a href = "#Linear_bearings">Linear_bearings</a> </td><td> <a href = "#Sealing_strip">Sealing_strip</a> </td><td> <a href = "#Door_latch">Door_latch</a> </td><td> <a href = "#Horiholes">Horiholes</a> </td><td></td></tr>
+<tr><td> <a href = "#Bulldogs">Bulldogs</a> </td><td> <a href = "#Magnets">Magnets</a> </td><td> <a href = "#Servo_motors">Servo_motors</a> </td><td> <a href = "#Drag_chain">Drag_chain</a> </td><td> <a href = "#Layout">Layout</a> </td><td></td></tr>
+<tr><td> <a href = "#Buttons">Buttons</a> </td><td> <a href = "#Mains_sockets">Mains_sockets</a> </td><td> <a href = "#Shaft_couplings">Shaft_couplings</a> </td><td> <a href = "#Fan_guard">Fan_guard</a> </td><td> <a href = "#Maths">Maths</a> </td><td></td></tr>
+<tr><td> <a href = "#Cable_strips">Cable_strips</a> </td><td> <a href = "#Microswitches">Microswitches</a> </td><td> <a href = "#Sheets">Sheets</a> </td><td> <a href = "#Fixing_block">Fixing_block</a> </td><td> <a href = "#Offset">Offset</a> </td><td></td></tr>
+<tr><td> <a href = "#Cameras">Cameras</a> </td><td> <a href = "#Microview">Microview</a> </td><td> <a href = "#Spades">Spades</a> </td><td> <a href = "#Flat_hinge">Flat_hinge</a> </td><td> <a href = "#Quadrant">Quadrant</a> </td><td></td></tr>
+<tr><td> <a href = "#Circlips">Circlips</a> </td><td> <a href = "#Modules">Modules</a> </td><td> <a href = "#Spools">Spools</a> </td><td> <a href = "#Foot">Foot</a> </td><td> <a href = "#Round">Round</a> </td><td></td></tr>
+<tr><td> <a href = "#Components">Components</a> </td><td> <a href = "#Nuts">Nuts</a> </td><td> <a href = "#Springs">Springs</a> </td><td> <a href = "#Handle">Handle</a> </td><td> <a href = "#Rounded_cylinder">Rounded_cylinder</a> </td><td></td></tr>
+<tr><td> <a href = "#DIP">DIP</a> </td><td> <a href = "#O_ring">O_ring</a> </td><td> <a href = "#Stepper_motors">Stepper_motors</a> </td><td> <a href = "#Knob">Knob</a> </td><td> <a href = "#Rounded_polygon">Rounded_polygon</a> </td><td></td></tr>
+<tr><td> <a href = "#D_connectors">D_connectors</a> </td><td> <a href = "#Opengrab">Opengrab</a> </td><td> <a href = "#Swiss_clips">Swiss_clips</a> </td><td> <a href = "#PCB_mount">PCB_mount</a> </td><td> <a href = "#Rounded_triangle">Rounded_triangle</a> </td><td></td></tr>
+<tr><td> <a href = "#Displays">Displays</a> </td><td> <a href = "#PCB">PCB</a> </td><td> <a href = "#Terminals">Terminals</a> </td><td> <a href = "#PSU_shroud">PSU_shroud</a> </td><td> <a href = "#Sector">Sector</a> </td><td></td></tr>
+<tr><td> <a href = "#Extrusion_brackets">Extrusion_brackets</a> </td><td> <a href = "#PCBs">PCBs</a> </td><td> <a href = "#Toggles">Toggles</a> </td><td> <a href = "#Pocket_handle">Pocket_handle</a> </td><td> <a href = "#Sweep">Sweep</a> </td><td></td></tr>
+<tr><td> <a href = "#Extrusions">Extrusions</a> </td><td> <a href = "#PSUs">PSUs</a> </td><td> <a href = "#Transformers">Transformers</a> </td><td> <a href = "#Press_fit">Press_fit</a> </td><td> <a href = "#Thread">Thread</a> </td><td></td></tr>
+<tr><td> <a href = "#Fans">Fans</a> </td><td> <a href = "#Panel_meters">Panel_meters</a> </td><td> <a href = "#Tubings">Tubings</a> </td><td> <a href = "#Printed_box">Printed_box</a> </td><td> <a href = "#Tube">Tube</a> </td><td></td></tr>
+<tr><td> <a href = "#Fuseholder">Fuseholder</a> </td><td> <a href = "#Pillars">Pillars</a> </td><td> <a href = "#Variacs">Variacs</a> </td><td> <a href = "#Printed_pulleys">Printed_pulleys</a> </td><td></td><td></td></tr>
+<tr><td> <a href = "#Geared_steppers">Geared_steppers</a> </td><td> <a href = "#Pillow_blocks">Pillow_blocks</a> </td><td> <a href = "#Veroboard">Veroboard</a> </td><td> <a href = "#Ribbon_clamp">Ribbon_clamp</a> </td><td></td><td></td></tr>
+<tr><td> <a href = "#Green_terminals">Green_terminals</a> </td><td> <a href = "#Pin_headers">Pin_headers</a> </td><td> <a href = "#Washers">Washers</a> </td><td> <a href = "#SSR_shroud">SSR_shroud</a> </td><td></td><td></td></tr>
+<tr><td> <a href = "#Hot_ends">Hot_ends</a> </td><td> <a href = "#Potentiometers">Potentiometers</a> </td><td> <a href = "#Wire">Wire</a> </td><td> <a href = "#Screw_knob">Screw_knob</a> </td><td></td><td></td></tr>
+<tr><td> <a href = "#Hygrometer">Hygrometer</a> </td><td> <a href = "#Pulleys">Pulleys</a> </td><td> <a href = "#Zipties">Zipties</a> </td><td> <a href = "#Socket_box">Socket_box</a> </td><td></td><td></td></tr>
+<tr><td></td><td></td><td></td><td> <a href = "#Strap_handle">Strap_handle</a> </td><td></td><td></td></tr>
 </table>
 
 ---
@@ -4391,7 +4392,9 @@ Just a BOM entry at the moment and cable bundle size functions for holes, plus c
 | Function | Description |
 |:--- |:--- |
 | `cable_bundle(cable)` | Arrangement of a bundle in a flat cable clip |
+| `cable_bundle_positions(cable)` | Positions of wires in a bundle to go through a cable strip |
 | `cable_height(cable)` | Height in flat clip |
+| `cable_is_ribbon(cable)` | Is a ribbon cable? |
 | `cable_radius(cable)` | Radius of a bundle of wires, see <http://mathworld.wolfram.com/CirclePacking.html>. |
 | `cable_width(cable)` | Width in flat clip |
 | `cable_wire_size(cable)` | Size of each wire in a bundle |
@@ -4684,6 +4687,51 @@ fixing_blocks along the sides.
 |  12 | fixing_block_M30_assembly |
 
 
+<a href="#top">Top</a>
+
+---
+<a name="Cable_clip"></a>
+## Cable_clip
+Cable clips to order. Can be for one or two cables of different sizes.
+
+[printed/cable_clip.scad](printed/cable_clip.scad) Implementation.
+
+[tests/cable_clip.scad](tests/cable_clip.scad) Code for this example.
+
+### Functions
+| Function | Description |
+|:--- |:--- |
+| `cable_clip_extent(screw, cable)` | How far it extends from the screw. |
+| `cable_clip_height(cable)` | Height given the `cable`. |
+| `cable_clip_offset(screw, cable)` | The offset of the cable from the screw |
+| `cable_clip_width(screw)` | Width given the `screw`. |
+
+### Modules
+| Module | Description |
+|:--- |:--- |
+| `cable_clip(screw, cable1, cable2 = 0)` | Create the STL for a single cable or two cable clip |
+| `cable_clip_assembly(screw, thickness, cable1, cable2 = 0)` | Cable clip with the fasteners |
+
+![cable_clip](tests/png/cable_clip.png)
+
+### Vitamins
+| Qty | Module call | BOM entry |
+| ---:|:--- |:---|
+|   5 | `nut(M3_nut, nyloc = true)` |  Nut M3 x 2.4mm nyloc |
+|   2 | `screw(M3_dome_screw, 12)` |  Screw M3 dome x 12mm |
+|   3 | `screw(M3_dome_screw, 16)` |  Screw M3 dome x 16mm |
+|  10 | `washer(M3_washer)` |  Washer  M3 x 7mm x 0.5mm |
+
+### Printed
+| Qty | Filename |
+| ---:|:--- |
+|   1 | cable_clip_30_10_13.stl |
+|   1 | cable_clip_30_1_14_2_14.stl |
+|   1 | cable_clip_30_1_60.stl |
+|   1 | cable_clip_30_3_14_4_14.stl |
+|   1 | cable_clip_30_5_14_6_14.stl |
+
+
 <a href="#top">Top</a>
 
 ---

tests/cable_clip.scad

@@ -0,0 +1,59 @@
+//
+// NopSCADlib Copyright Chris Palmer 2022
+// nop.head@gmail.com
+// hydraraptor.blogspot.com
+//
+// This file is part of NopSCADlib.
+//
+// NopSCADlib is free software: you can redistribute it and/or modify it under the terms of the
+// GNU General Public License as published by the Free Software Foundation, either version 3 of
+// the License, or (at your option) any later version.
+//
+// NopSCADlib is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+// without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+// See the GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along with NopSCADlib.
+// If not, see <https://www.gnu.org/licenses/>.
+//
+
+include <../core.scad>
+use <../printed/cable_clip.scad>
+use <../vitamins/wire.scad>
+
+
+sheet_thickness = 3;
+
+cables = [
+    for(i = [1 : 6]) [i, 1.4], [1, 6], 0, [10, inch(0.05), true], 0
+];
+
+screw = M3_dome_screw;
+
+
+module cable_clips() {
+    for(i = [0 : ceil(len(cables) / 2) - 1])
+        translate([i * 25, 0]) {
+            cable1 = cables[2 * i];
+            cable2 = cables[2 * i + 1];
+
+            if($preview) {
+                cable_clip_assembly(screw, sheet_thickness, cable1, cable2);
+
+                for(j = [0 : 1])
+                    let(cable = cables[2 * i + j])
+                        if(cable)
+                            let(positions = cable_bundle_positions(cable))
+                                for(i = [0 : len(positions) - 1])
+                                    let(p = positions[i])
+                                        translate([p.x + [-1, 1][j] * cable_clip_offset(screw, cable), 0, p.y])
+                                            rotate([90, 0, 0])
+                                                color([grey(20), "blue", "red", "orange", "yellow", "green", "brown", "purple", "grey", "white"][i])
+                                                    cylinder(d = cable_wire_size(cable), h = 30, center = true);
+            }
+            else
+                cable_clip(screw, cable1, cable2);
+        }
+}
+
+cable_clips();

tests/wire.scad

@@ -25,13 +25,15 @@ bundle = [7, 1.4];
 bundle_r = cable_radius(bundle);
 
 thickness = 2;
-w = 50;
+w = 60;
 d = 20;
 h = 40;
 wire_l = 90;
+mouse_y = 10;
+cable_pitch = 7;
 
 module wires() {
-    translate_z(bundle_r)
+    translate([0, mouse_y, bundle_r])
         rotate([0, 90, 0]) {
             n = cable_wires(bundle);
             d = cable_wire_size(bundle);
@@ -58,24 +60,39 @@ module wires() {
         rotate([90, 0, 90])
             linear_extrude(thickness)
                 difference() {
-                    translate([-w / 2, 0])
                     square([w, h]);
 
+                    translate([mouse_y, 0])
                         mouse_hole(bundle, 0, true);
+
+                    for(i = [1 : 6])
+                        let(cable = [i, 1.4], bundle = cable_bundle(cable))
+                            translate([mouse_y + cable_pitch * i - bundle.x / 2, -eps])
+                                square([bundle.x, bundle.y]);
                 }
 
         translate_z(-thickness)
             linear_extrude(thickness)
                 difference() {
-                    translate([thickness -d, -w / 2])
+                    translate([thickness -d, 0])
                         square([d, w]);
 
-                    translate([-15, 0])
+                    translate([-15, mouse_y])
                         cable_tie_holes(bundle_r, 0);
                 }
     }
-    translate([-15, 0])
+    translate([-15, mouse_y])
         cable_tie(bundle_r, thickness);
+
+    for(i = [1 : 6]) let(cable = [i, 1.4])
+        translate([0, mouse_y + cable_pitch * i])
+            let(positions = cable_bundle_positions(cable))
+                for(i = [0 : len(positions) - 1])
+                    let(p = positions[i])
+                        translate([0, p.x, p.y])
+                            rotate([0, 90, 0])
+                                color([grey(10), "blue", "red", "orange", "yellow", "green"][i])
+                                    cylinder(d = cable_wire_size(cable), h = 60, center = true);
 }
 
 if($preview)

utils/sweep.scad

@@ -215,12 +215,16 @@ function rounded_path(path) = //! Convert a rounded_path, consisting of a start
             p0 - p1,                                    // Calculate vectors between vertices
             v2 = p2 - p1,
             a = angle_between(v1, -v2),                 // Angle turned through
-            arc_start = p1 + unit(v1) * r * tan(a / 2), // Calc the start position
+            d = r * tan(a / 2),                         // Distance from vertex to tangents
+            room = min(norm(v1), norm(v2)),             // Maximum distance
+            arc_start = assert(d <= room,
+                str("Can't fit radius ", r, " into corner at vertex path[", i, "] = ", p1, " only room for radius ", room / tan(a / 2)))
+                p1 + unit(v1) * d,                      // Calc the start position
             z_axis = unit(cross(v1, v2)),               // z_axis is perpendicular to both vectors
             centre = arc_start + unit(cross(z_axis, v1)) * r, // Arc center is a radius away, and perpendicular to v1 and the z_axis.
             x_axis = arc_start - centre,                // Make the x_axis along the radius to the start point, includes radius a scale factor
             y_axis = cross(x_axis, z_axis),             // y_axis perpendicular to the other two
-            sides = r2sides(ceil(r2sides(r) * a / 360)) // Sides needed to make the arc
+            sides = ceil(r2sides(r) * a / 360)          // Sides needed to make the arc
         )
         for(j = [0 : sides], t = a * j / sides)         // For each vertex in the arc
             cos(t) * x_axis + sin(t) * y_axis + centre, // Circular arc in the tiled xy plane.
@@ -240,7 +244,7 @@ function segmented_path(path, min_segment) = [  //! Add points to a path to enfo
 ];
 
 function spiral_paths(path, n, r, twists, start_angle) = let( //! Create a new paths which sprial around the given path. Use for making twisted cables
-        segment = path_length(path) / twists / r2sides(2 * r),
+        segment = twists ? path_length(path) / twists / r2sides(2 * r) : inf,
         transforms = sweep_transforms(segmented_path(path, segment), twist = 360 * twists),
         initial = [r, 0, 0, 1] * rotate(start_angle)
     ) [for(i = [0 : n - 1]) let(initial = [r, 0, 0, 1] * rotate(start_angle + i * 360 / n)) [for(t = transforms) initial * t]];

vitamins/smd.scad

@@ -153,7 +153,7 @@ module smd_sot(type, value) { //! Draw an SMD transistor
     ls = smd_sot_lead_size(type);
 
     r = ls.z;
-    gullwing = rounded_path([[0, 0, ls.z / 2], [0, ls.y - ls.z, ls.z / 2], r, [0, ls.y -ls.z + z1 - ls.z, z1 - ls.z / 2], r, [0, span / 2, z1 - ls.z / 2]]);
+    gullwing = rounded_path([[0, 0, ls.z / 2], [0, ls.y - ls.z, ls.z / 2], r, [0, ls.y -ls.z + z1 - ls.z, z1 - ls.z / 2], r, [0, span / 2, z1 - ls.z / 2]], $fn = 32);
 
     color(grey(20))
         hull()

vitamins/wire.scad

@@ -34,6 +34,7 @@ module ribbon_cable(ways, length)                   //! Add ribbon cable to the
 //
 function cable_wires(cable)     = cable[0]; //! Number of wires in a bundle
 function cable_wire_size(cable) = cable[1]; //! Size of each wire in a bundle
+function cable_is_ribbon(cable) = len(cable) > 2 && cable[2]; //! Is a ribbon cable?
 
 // numbers from http://mathworld.wolfram.com/CirclePacking.html
 function cable_radius(cable) = [0, 1, 2, 2.15, 2.41, 2.7, 3, 3, 3.3][cable_wires(cable)] * cable_wire_size(cable) / 2; //! Radius of a bundle of wires, see <http://mathworld.wolfram.com/CirclePacking.html>.
@@ -41,10 +42,20 @@ function cable_radius(cable) = [0, 1, 2, 2.15, 2.41, 2.7, 3, 3, 3.3][cable_wires
 function wire_hole_radius(cable) = ceil(4 * cable_radius(cable) + 1) / 4; //! Radius of a hole to accept a bundle of wires, rounded up to standard metric drill size
 
 function cable_bundle(cable) = //! Arrangement of a bundle in a flat cable clip
-    [[0,0], [1,1], [2,1], [2, 0.5 + sin(60)], [2,2], [3, 0.5 + sin(60)], [3,2]][cable_wires(cable)];
+    (cable_is_ribbon(cable) ? [cable_wires(cable), 1] :
+    [[0,0], [1,1], [2,1], [2, 1 + sin(60)], [2,2], [3, 1 + sin(60)], [3,2]][cable_wires(cable)]) * cable_wire_size(cable);
 
-function cable_width(cable)  = cable_bundle(cable)[0] * cable_wire_size(cable); //! Width in flat clip
-function cable_height(cable) = cable_bundle(cable)[1] * cable_wire_size(cable); //! Height in flat clip
+function cable_bundle_positions(cable) = let( //! Positions of wires in a bundle to go through a cable strip
+        wires = cable_wires(cable),
+        bottom = cable_is_ribbon(cable) ? wires : wires < 3 ? wires : ceil(wires / 2),
+        top = wires - bottom
+    )
+    [for(i = [0 : 1 : bottom - 1]) [i - (bottom - 1) / 2, 0.5],
+     for(i = [0 : 1 : top - 1])    [i - (top - 1) / 2, top == bottom ? 1.5 : 0.5 + sin(60)]
+    ] * cable_wire_size(cable);
+
+function cable_width(cable)  = cable_bundle(cable).x; //! Width in flat clip
+function cable_height(cable) = cable_bundle(cable).y; //! Height in flat clip
 
 module mouse_hole(cable, h = 100, teardrop = false) { //! A mouse hole to allow a panel to go over a wire bundle.
     r = wire_hole_radius(cable);