Merge branch 'martinbudden-screw_socket_visibility'

Changed the order of knob_for_pot() parameters.

CHANGELOG.md

@@ -3,6 +3,73 @@
 This changelog is generated by `changelog.py` using manually added semantic version tags to classify commits as breaking changes, additions or fixes.
 
 
+#### [v17.7.1](https://github.com/nophead/NopSCADlib/releases/tag/v17.7.1 "show release") Fixes [...](https://github.com/nophead/NopSCADlib/compare/v17.7.0...v17.7.1 "diff with v17.7.0")
+*   2021-10-29 [`9464ad5`](https://github.com/nophead/NopSCADlib/commit/9464ad5dbf1c6befaa0059e7cc3f0988d5639173 "show commit") [C.P.](# "Chris Palmer") Fixed knob for pots with split shaft.
+Changed the order of `knob_for_pot()` parameters.
+
+### [v17.7.0](https://github.com/nophead/NopSCADlib/releases/tag/v17.7.0 "show release") Additions [...](https://github.com/nophead/NopSCADlib/compare/v17.6.0...v17.7.0 "diff with v17.6.0")
+*   2021-10-28 [`b424bea`](https://github.com/nophead/NopSCADlib/commit/b424bea622d5247fd1e2f1ddd51782aba55277e1 "show commit") [C.P.](# "Chris Palmer") Added printed knobs for pots.
+
+*   2021-10-28 [`c8d9bb7`](https://github.com/nophead/NopSCADlib/commit/c8d9bb7d094408f70cb91354895856cb915cfe00 "show commit") [C.P.](# "Chris Palmer") Potentiometers now create a BOM entry and have a value specified.
+
+### [v17.6.0](https://github.com/nophead/NopSCADlib/releases/tag/v17.6.0 "show release") Additions [...](https://github.com/nophead/NopSCADlib/compare/v17.5.0...v17.6.0 "diff with v17.5.0")
+*   2021-10-26 [`f5528c5`](https://github.com/nophead/NopSCADlib/commit/f5528c5a9a51abdd12443a677236ac8610206c20 "show commit") [C.P.](# "Chris Palmer") Single `7_segment` objects can now have multiple digits.
+This is deduced from the digit size compared to the overall size.
+The decimal point is now suppressed if there are not enough pins.
+Added 02531A and 02352A 3 digit displays.
+
+*   2021-10-26 [`09bce09`](https://github.com/nophead/NopSCADlib/commit/09bce09a85fee3f3ac684743467329c18f4ebb73 "show commit") [C.P.](# "Chris Palmer") Typo
+
+### [v17.5.0](https://github.com/nophead/NopSCADlib/releases/tag/v17.5.0 "show release") Additions [...](https://github.com/nophead/NopSCADlib/compare/v17.4.0...v17.5.0 "diff with v17.4.0")
+*   2021-10-24 [`bad33da`](https://github.com/nophead/NopSCADlib/commit/bad33da95eb3b20ccbb6e4906dccfe51e8f4372c "show commit") [C.P.](# "Chris Palmer") Updated images and readme.
+
+*   2021-10-21 [`427ef61`](https://github.com/nophead/NopSCADlib/commit/427ef610def6ef2744d565329069719e485a500e "show commit") [M.B.](# "Martin Budden") Allowed naming of magnets. Added radial encoder magnet.
+
+### [v17.4.0](https://github.com/nophead/NopSCADlib/releases/tag/v17.4.0 "show release") Additions [...](https://github.com/nophead/NopSCADlib/compare/v17.3.0...v17.4.0 "diff with v17.3.0")
+*   2021-10-24 [`f5d0bfb`](https://github.com/nophead/NopSCADlib/commit/f5d0bfb6c80111399f5fa2aeb8bab5bab9101285 "show commit") [C.P.](# "Chris Palmer") Fixed drill `center` parameter in `poly_drill()`.
+
+*   2021-10-24 [`b2117fa`](https://github.com/nophead/NopSCADlib/commit/b2117fa99a57341f9c93eed97c392c18173aa73c "show commit") [C.P.](# "Chris Palmer") `atx_psu_cutout(type)` now parametric and can be shown in the test.
+ATX300 PSU now has a correct cutout and more accurate grill holes.
+The four margins around grill holes can now be specified.
+
+*   2021-10-24 [`6687a4a`](https://github.com/nophead/NopSCADlib/commit/6687a4a7c62d526a5f376db903dcd74c4fb8a25c "show commit") [C.P.](# "Chris Palmer") Added `jack_4mm_flange_radius()`.
+
+*   2021-10-24 [`8524ddd`](https://github.com/nophead/NopSCADlib/commit/8524ddd34dd93d0bf5ddf538984809b8f0f8c986 "show commit") [C.P.](# "Chris Palmer") Foot now lowered by squeeze distance so the washer is visible.
+
+### [v17.3.0](https://github.com/nophead/NopSCADlib/releases/tag/v17.3.0 "show release") Additions [...](https://github.com/nophead/NopSCADlib/compare/v17.2.2...v17.3.0 "diff with v17.2.2")
+*   2021-10-20 [`21c0666`](https://github.com/nophead/NopSCADlib/commit/21c06667a3c5a0bc65440b990e28b8a2f93c7c32 "show commit") [C.P.](# "Chris Palmer") Added ATX300 PSU model.
+
+*   2021-10-20 [`d19fad3`](https://github.com/nophead/NopSCADlib/commit/d19fad3f9f7e6eba94b2005b4798b5914fff4b69 "show commit") [C.P.](# "Chris Palmer") PSU grills can now have different holes sizes, spacing, round or heaxagonal and avoid a list of rectangular regions.
+
+*   2021-10-20 [`172bfb1`](https://github.com/nophead/NopSCADlib/commit/172bfb16d8ec8ffee8b5185ef42867b37ab6bce1 "show commit") [C.P.](# "Chris Palmer") Added lugless pressfit IEC inlet.
+
+*   2021-10-09 [`491dbae`](https://github.com/nophead/NopSCADlib/commit/491dbae13b9ff2736324ff084c6a6f313b4a09fc "show commit") [C.P.](# "Chris Palmer") `screw_shorter_than()` will return 4 or 3 for short grub screws.
+
+#### [v17.2.2](https://github.com/nophead/NopSCADlib/releases/tag/v17.2.2 "show release") Fixes [...](https://github.com/nophead/NopSCADlib/compare/v17.2.1...v17.2.2 "diff with v17.2.1")
+*   2021-10-02 [`046c475`](https://github.com/nophead/NopSCADlib/commit/046c475e1833c09a925a5310d1ccc6e4b07e7f89 "show commit") [M.B.](# "Martin Budden") Set convexity to 8 for `linear_extrude` of extrusion.
+
+#### [v17.2.1](https://github.com/nophead/NopSCADlib/releases/tag/v17.2.1 "show release") Fixes [...](https://github.com/nophead/NopSCADlib/compare/v17.2.0...v17.2.1 "diff with v17.2.0")
+*   2021-10-06 [`5f72a12`](https://github.com/nophead/NopSCADlib/commit/5f72a1212514ee7f8a795b53b1d1d180329660df "show commit") [C.P.](# "Chris Palmer") Nuts shown on jacks and fuseholders only shown threaded when exploded.
+
+### [v17.2.0](https://github.com/nophead/NopSCADlib/releases/tag/v17.2.0 "show release") Additions [...](https://github.com/nophead/NopSCADlib/compare/v17.1.0...v17.2.0 "diff with v17.1.0")
+*   2021-10-06 [`82502eb`](https://github.com/nophead/NopSCADlib/commit/82502eb470127b28e4036821077cbdbd06c17e9e "show commit") [C.P.](# "Chris Palmer") Added `pot_nut()` module to draw potentiometer nuts and washers.
+
+### [v17.1.0](https://github.com/nophead/NopSCADlib/releases/tag/v17.1.0 "show release") Additions [...](https://github.com/nophead/NopSCADlib/compare/v17.0.1...v17.1.0 "diff with v17.0.1")
+*   2021-10-05 [`b541298`](https://github.com/nophead/NopSCADlib/commit/b541298eae361b80df3c6c5797f3940a37fc2a38 "show commit") [C.P.](# "Chris Palmer") Printed foot assembly can now omit the top washer when space is at a premium.
+Now correctly shows the screw in the squeezed position.
+
+*   2021-10-02 [`9884160`](https://github.com/nophead/NopSCADlib/commit/9884160ed5e8cd7d1f44c6fee950e3682714da9c "show commit") [C.P.](# "Chris Palmer") Updated the gallery
+
+#### [v17.0.1](https://github.com/nophead/NopSCADlib/releases/tag/v17.0.1 "show release") Fixes [...](https://github.com/nophead/NopSCADlib/compare/v17.0.0...v17.0.1 "diff with v17.0.0")
+*   2021-10-01 [`38c973b`](https://github.com/nophead/NopSCADlib/commit/38c973b316a853fcbef3ccb857d99404a772d9dd "show commit") [C.P.](# "Chris Palmer") FR4 veroboard made the correct colour.
+veroboard track cuts made slightly bigger.
+
+*   2021-10-01 [`042d809`](https://github.com/nophead/NopSCADlib/commit/042d809ed056ba55c32f1d850b81dcf559fe9134 "show commit") [C.P.](# "Chris Palmer") Resistor and thermistor wires made more round.
+
+*   2021-10-01 [`3864839`](https://github.com/nophead/NopSCADlib/commit/3864839e521eb64189cba8453ea8835d6ffadd75 "show commit") [C.P.](# "Chris Palmer") Fixed encoder breakout descripion typo.
+
+*   2021-10-01 [`2ba2c2c`](https://github.com/nophead/NopSCADlib/commit/2ba2c2c115d4ab6c2371c662a3e54d7c77aa7785 "show commit") [C.P.](# "Chris Palmer") Removed some unused dependencies.
+
 ## [v17.0.0](https://github.com/nophead/NopSCADlib/releases/tag/v17.0.0 "show release") Breaking Changes [...](https://github.com/nophead/NopSCADlib/compare/v16.2.0...v17.0.0 "diff with v16.2.0")
 *   2021-09-28 [`a5c4bf0`](https://github.com/nophead/NopSCADlib/commit/a5c4bf05adbf53cb7eb113db1139b65eb616a2e0 "show commit") [M.B.](# "Martin Budden") Added hot end style string literals following discussion.
 

gallery/readme.md

@@ -25,6 +25,11 @@ WiFi controllable PSU
 
 ![](IOT_50V_PSU.png)
 
+## IOT LOAD
+WiFi controllable programmable load
+
+![](IOT_LOAD.png)
+
 ## Lab ATX PSU
 Bench power supply built around an ATX PSU.
 
@@ -65,6 +70,16 @@ Mains isolated and variable supply with metering.
 
 
 
+## PSU Cover
+A base and shroud to make PSU safe to sit on a desk
+
+![](PSU_cover.png)
+
+## PotBox
+Potentiometer box with course and fine controls and three 4mm binding posts
+
+![](PotBox.png)
+
 ## SunBot
 A solar tracker to keep a solar panel pointing at the sun.
 

libtest.scad

@@ -123,6 +123,7 @@ use <tests/fixing_block.scad>
 use <tests/flat_hinge.scad>
 use <tests/foot.scad>
 use <tests/handle.scad>
+use <tests/knob.scad>
 use <tests/PCB_mount.scad>
 use <tests/pocket_handle.scad>
 use <tests/printed_box.scad>
@@ -173,16 +174,19 @@ translate([x5, cable_grommets_y + 470]) {
         flat_hinges();
 }
 
-translate([x5, cable_grommets_y + 370])
+translate([x5, cable_grommets_y + 380])
     no_explode() socket_boxes();
 
-translate([x5 + 60, cable_grommets_y + 200])
-    strap_handles();
-
 translate([640, cable_grommets_y + 200])
     printed_pulley_test();
 
-translate([x5, cable_grommets_y + 250])
+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])

printed/foot.scad

@@ -67,18 +67,19 @@ module foot(type = foot) { //! Generate STL
         }
 }
 
-module foot_assembly(t = 0, type = foot, flip = false) { //! Assembly with fasteners in place for specified sheet thickness
+module foot_assembly(t = 0, type = foot, flip = false, no_washer = false) { //! Assembly with fasteners in place for specified sheet thickness
     screw = foot_screw(type);
     nut = screw_nut(screw);
     squeeze = 0.5;
-    screw_length = screw_length(screw, foot_thickness(type) + t - squeeze, 2, nyloc = true);
+    screw_length = screw_length(screw, foot_thickness(type) + t - squeeze, no_washer ? 1 : 2, nyloc = true);
 
     vflip() explode(15, true) {
-        stl_colour(pp4_colour) foot(type);
+        translate_z(-squeeze)
+            stl_colour(pp4_colour) foot(type);
 
         if(t)
             explode(15, true)
-                translate_z(foot_thickness(type))
+                translate_z(foot_thickness(type) - squeeze)
                     if(flip)
                         nut_and_washer(nut, true);
                     else
@@ -87,9 +88,15 @@ module foot_assembly(t = 0, type = foot, flip = false) { //! Assembly with faste
     if(t)
         translate_z(t)
             if(flip)
-                screw_and_washer(screw, screw_length);
+                if(no_washer)
+                    screw(screw, screw_length);
+                else
+                    screw_and_washer(screw, screw_length);
             else
-                nut_and_washer(nut, true);
+                if(no_washer)
+                    nut(nut, true);
+                else
+                    nut_and_washer(nut, true);
 }
 
 module insert_foot(type = insert_foot) { //! Generate STL for foot with insert

printed/knob.scad

@@ -0,0 +1,171 @@
+//
+// NopSCADlib Copyright Chris Palmer 221
+// 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/>.
+//
+
+//
+//! Parametric knobs for potentiometers and encoders.
+//!
+//! A knob can be constructed by specififying all the parameters or the potentiometer can be specified to customise it for its shaft with a recess to clear the nut, washer and thread.
+//! An optional skirt and / or a pointer can be specified.
+//!
+//! The STL includes a support membrane that needs to be cut out and a thread needs to be tapped for the grub screw.
+//
+
+include <../core.scad>
+use <../utils/hanging_hole.scad>
+use <../utils/rounded_polygon.scad>
+use <../vitamins/potentiometer.scad>
+
+clearance = 0.2;
+
+function knob_name(type)     = type[0]; //! Name for the stl maker
+function knob_top_d(type)    = type[1]; //! Diameter at the top
+function knob_bot_d(type)    = type[2]; //! Diameter at the bottom
+function knob_height(type)   = type[3]; //! Height
+function knob_corner_r(type) = type[4]; //! Rounded top corner
+function knob_shaft_d(type)  = type[5]; //! Shaft diameter
+function knob_shaft_len(type)= type[6]; //! Shaft length
+function knob_flat_d(type)   = type[7]; //! The shaft diameter at the flat
+function knob_flat_h(type)   = type[8]; //! The length of the flat
+function knob_screw(type)    = type[9]; //! The grub screw type
+function knob_skirt(type)    = type[10]; //! Skirt diameter and thickness
+function knob_recess(type)   = type[11]; //! Recess diameter and thickness to clear nut and thread, diameter, nut height, thread height
+function knob_pointer(type)  = type[12]; //! Pointer outside radius, [point width, back width] and height height
+
+function knob(name = "knob", top_d = 12, bot_d = 15, height = 18, shaft_length, skirt = [20, 2], pointer = false, corner_r = 2, screw = M3_grub_screw, shaft_d, flat_d, flat_h, recess) = //! Constructor
+[
+    name, top_d, bot_d, height, corner_r, shaft_d, shaft_length, flat_d, flat_h, screw, skirt, recess, pointer
+];
+
+function knob_for_pot(pot, thickness, z = 1, washer = true, top_d = 12, bot_d = 15, height = 0, shaft_length = undef, skirt = [20, 2], pointer = false, corner_r = 2, screw = M3_grub_screw) =  //! Construct a knob to fit specified pot
+    let(s = pot_shaft(pot),
+        washer = washer && pot_washer(pot) ? pot_washer(pot) : [0, 0],
+        nut = pot_nut(pot) ? pot_nut(pot) : [pot_thread_d(pot) * cos(30), pot_thread_h(pot) - thickness],
+        shaft_length = is_undef(shaft_length) ? s.z : min(shaft_length, s.z),
+        h = round_to_layer(shaft_length + pot_thread_h(pot) - thickness - z),
+        height = max(height, h + 1),
+        recess = [(z > washer.y ? nut.x / cos(30) : washer.x) + 0.4, round_to_layer(nut.y + washer.y - z + layer_height), round_to_layer(pot_thread_h(pot) - z - thickness + 2 * layer_height)],
+        flat_d = s.y + 0.06,
+        flat_h = min(s[3], shaft_length)
+    )
+    knob(name = str(pot[0], "_knob"),
+         top_d = top_d,
+         bot_d = bot_d,
+         height = height,
+         corner_r = corner_r,
+         screw = screw,
+         skirt = skirt,
+         pointer = pointer,
+         shaft_d = s.x,
+         shaft_length = h,
+         flat_d = flat_d,
+         flat_h = flat_h,
+         recess = recess);
+
+function knob_screw_z(type) = knob_shaft_len(type) - knob_flat_h(type) / 2;
+
+module knob(type, supports = true) { //! Generate the STL for a knob
+    r_top = knob_top_d(type) / 2;
+    r_bot = knob_bot_d(type) / 2;
+    h = knob_height(type);
+    r = knob_corner_r(type);
+    screw = knob_screw(type);
+    sr = knob_shaft_d(type) / 2 + (screw ? clearance : 0);
+    top_wall = h - knob_shaft_len(type);
+    fr = knob_flat_d(type) - sr + 2 * clearance;
+    fh = knob_flat_h(type);
+    skirt = knob_skirt(type);
+    recess = knob_recess(type);
+    pointer = knob_pointer(type);
+
+    stl(knob_name(type))
+    {
+        difference() {
+            union() {
+                rotate_extrude() {
+                    rounded_polygon([
+                        [0, h, 0],
+                        [r_top - r, h - r, r],
+                        [r_bot, 0, 0],
+                        [0, 0, 0],
+                    ]);
+
+                    if(skirt)
+                        square([skirt.x / 2, skirt.y]);
+                }
+                if(pointer)
+                    linear_extrude(pointer.z)
+                        rotate(-90)
+                            hull() {
+                                translate([pointer.x, 0])
+                                    square([eps, pointer.y[0]], center = true);
+
+                                translate([r_bot, 0])
+                                    square([eps, pointer.y[1]], center = true);
+                            }
+            }
+            shaft_z = recess ? recess.z + (supports ? layer_height : -eps) : -eps;
+            translate_z(shaft_z) {
+                h = h - top_wall - shaft_z;
+                linear_extrude(h)
+                    difference() {
+                        poly_circle(sr);
+
+                        if(fr > 0)
+                            translate([-sr, fr])
+                                square([2 * sr, sr]);
+                    }
+
+                if(h > fh)
+                    poly_cylinder(sr, round_to_layer(h - fh), center = false);
+            }
+
+            if(recess)
+                translate_z(-eps)
+                    hull() {
+                        poly_cylinder(r = recess.x / 2, h = recess.y + eps, center = false);
+
+                        linear_extrude(recess.z + eps)
+                            offset(min(-(recess.z - recess.y), 0))
+                                poly_circle(recess.x / 2);
+                    }
+
+            if(screw)
+                translate_z(knob_screw_z(type))
+                    rotate([90, 0, 180])
+                        teardrop_plus(r = screw_pilot_hole(screw), h = max(r_top, r_bot) + eps, center = false);
+        }
+    }
+}
+
+//! Knob with grub screw in place
+module knob_assembly(type) explode(40, explode_children = true) { //! Assembly with the grub screw in place
+    sr = knob_shaft_d(type) / 2;
+    fr = knob_flat_d(type) < sr ? knob_flat_d(type) - sr : sr;
+    r_top = knob_top_d(type) / 2;
+    r_bot = knob_bot_d(type) / 2;
+    screw_length = screw_shorter_than(min(r_top, r_bot) - fr);
+    screw = knob_screw(type);
+
+    stl_colour(pp1_colour) render() knob(type, supports = false);
+
+    if(screw)
+        translate([0, (fr + screw_length), knob_screw_z(type)])
+            rotate([90, 0, 180])
+                screw(screw, screw_length);
+}

readme.md

@@ -35,24 +35,27 @@ A list of changes classified as breaking, additions or fixes is maintained in [C
 <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 = "#PCB_mount">PCB_mount</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 = "#PSU_shroud">PSU_shroud</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 = "#Pocket_handle">Pocket_handle</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 = "#Toggles">Toggles</a> </td><td> <a href = "#Press_fit">Press_fit</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 = "#Transformers">Transformers</a> </td><td> <a href = "#Printed_box">Printed_box</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 = "#Tubings">Tubings</a> </td><td> <a href = "#Printed_pulleys">Printed_pulleys</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 = "#Variacs">Variacs</a> </td><td> <a href = "#Ribbon_clamp">Ribbon_clamp</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 = "#Veroboard">Veroboard</a> </td><td> <a href = "#SSR_shroud">SSR_shroud</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 = "#Washers">Washers</a> </td><td> <a href = "#Screw_knob">Screw_knob</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 = "#Wire">Wire</a> </td><td> <a href = "#Socket_box">Socket_box</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 = "#Zipties">Zipties</a> </td><td> <a href = "#Strap_handle">Strap_handle</a> </td><td></td><td></td></tr>
-<tr><td> <a href = "#Hygrometer">Hygrometer</a> </td><td> <a href = "#Pulleys">Pulleys</a> </td><td></td><td></td><td></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 = "#Toggles">Toggles</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 = "#Transformers">Transformers</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 = "#Tubings">Tubings</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 = "#Variacs">Variacs</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 = "#Veroboard">Veroboard</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 = "#Washers">Washers</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 = "#Wire">Wire</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 = "#Zipties">Zipties</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></td><td> <a href = "#Strap_handle">Strap_handle</a> </td><td></td><td></td></tr>
 </table>
 
 ---
 <a name="7_segments"></a>
 ## 7_segments
-7 Segment displays
+7 Segment displays.
+
+Can be single digits stacked side by side or can be multiple digits in one unit. This is determined by the overall width compared to the width of a digit.
+Presence of a decimal point is determined by the number of pins. Its position is determined by a heuristic.
 
 [vitamins/7_segments.scad](vitamins/7_segments.scad) Object definitions.
 
@@ -63,7 +66,7 @@ A list of changes classified as breaking, additions or fixes is maintained in [C
 ### Properties
 | Function | Description |
 |:--- |:--- |
-| `7_segment_digit_size(type)` | Size of the actual digit and segemnt width and angle |
+| `7_segment_digit_size(type)` | Size of the actual digit and segment width and angle |
 | `7_segment_pin_pitch(type)` | x and y pin pitches and pin diameter |
 | `7_segment_pins(type)` | None |
 | `7_segment_size(type)` | Size of the body |
@@ -1454,6 +1457,7 @@ IEC mains inlets and outlet.
 |   1 | `iec(IEC_inlet)` |  IEC inlet |
 |   1 | `iec(IEC_inlet_atx)` |  IEC inlet for ATX |
 |   1 | `iec(IEC_outlet)` |  IEC outlet RS 811-7193 |
+|   1 | `iec(IEC_inlet_atx2)` |  IEC pressfit inlet for ATX |
 |   1 | `iec(IEC_320_C14_switched_fused_inlet)` |  IEC320 C14 switched fused inlet module |
 |  12 | `nut(M3_nut, nyloc = true)` |  Nut M3 x 2.4mm nyloc |
 |   4 | `screw(M3_cs_cap_screw, 10)` |  Screw M3 cs cap x 10mm |
@@ -1526,6 +1530,7 @@ E.g. a "brown" socket for mains live needs to be displayed as "sienna" to look r
 ### Functions
 | Function | Description |
 |:--- |:--- |
+| `jack_4mm_flange_radius()` | 4mm jack socket flange radius |
 | `jack_4mm_hole_radius()` | Panel hole radius for 4mm jack |
 | `jack_4mm_plastic_flange_radius()` | 4mm plastic jack socket flange radius |
 | `jack_4mm_shielded_hole_radius()` | Panel hole radius for 4mm shielded jack |
@@ -1879,6 +1884,7 @@ Cylindrical and ring magnets.
 |:--- |:--- |
 | `magnet_h(type)` | Height |
 | `magnet_id(type)` | Inside diameter if a ring |
+| `magnet_name(type)` | Name |
 | `magnet_od(type)` | Outer diameter |
 | `magnet_r(type)` | Corner radius |
 
@@ -1892,9 +1898,10 @@ Cylindrical and ring magnets.
 ### Vitamins
 | Qty | Module call | BOM entry |
 | ---:|:--- |:---|
-|   1 | `magnet(MAG484)` |  Magnet 6.35mm diameter, 6.35mm high, 3.175mm bore |
-|   1 | `magnet(MAG8x4x4p2)` |  Magnet 8mm diameter, 4mm high, 4.2mm bore |
-|   1 | `magnet(MAG5x8)` |  Magnet 8mm diameter, 5mm high |
+|   1 | `magnet(MAG484)` |  Magnet, 6.35mm diameter, 6.35mm high, 3.175mm bore |
+|   1 | `magnet(MAG8x4x4p2)` |  Magnet, 8mm diameter, 4mm high, 4.2mm bore |
+|   1 | `magnet(MAG5x8)` |  Magnet, 8mm diameter, 5mm high |
+|   1 | `magnet(MAGRE6x2p5)` |  Radial encoder magnet, 6mm diameter, 2.5mm high |
 
 
 <a href="#top">Top</a>
@@ -2383,6 +2390,7 @@ PCBs and perfboard with optional components. The shape can be a rectangle with o
 ### Vitamins
 | Qty | Module call | BOM entry |
 | ---:|:--- |:---|
+|   1 | `potentiometer(BTT_encoder)` |  BTT_encoder |
 |   1 | `box_header(2p54header, 4, 2)` |  Box header 4 x 2 |
 |   1 | `d_plug(DCONN9, pcb = true)` |  D-type 9 way PCB mount plug |
 |   1 | `dil_socket(12, 15.24)` |  DIL socket 24 x 0.6" |
@@ -2390,6 +2398,7 @@ PCBs and perfboard with optional components. The shape can be a rectangle with o
 |   1 | `pdip(24, 27C32, w = 15.24)` |  IC 27C32 PDIP24 |
 |   1 | `pdip(8, NE555)` |  IC NE555 PDIP8 |
 |   1 | `idc_transition(2p54header, 5)` |  IDC transition header 5 x 2 |
+|   1 | `potentiometer(KY_040_encoder)` |  KY_040_encoder |
 |   1 | `led(LED10mm, "yellow")` |  LED 10 mm yellow |
 |   1 | `led(LED3mm)` |  LED 3 mm red |
 |   1 | `led(LED5mm, "orange")` |  LED 5 mm orange |
@@ -2799,6 +2808,7 @@ Potentiometers and rotary encoders
 | `pot_face(type)` | Faceplate rib width, plate depth and plate height |
 | `pot_gangs(type)` | Number of gangs for mult-gang pot |
 | `pot_neck(type)` | Diameter and length of the shaft neck |
+| `pot_nut(type)` | Across flat diameter and thickness of the nut |
 | `pot_shaft(type)` | Diameter, flat diameter, length and flat/slot length and colour. If flat diameter is less than the radius then it is a slot width |
 | `pot_spigot(type)` | Spigot width, length and height above the boss |
 | `pot_spigot_x(type)` | Spigot offset from the shaft centre |
@@ -2806,20 +2816,31 @@ Potentiometers and rotary encoders
 | `pot_thread_h(type)` | Height of threaded part |
 | `pot_thread_p(type)` | Thread pritch |
 | `pot_wafer(type)` | Width, diameter and thickness of the track wafer plus true if curved |
+| `pot_washer(type)` | Outside diameter and thickness of the washer |
 
 ### Functions
 | Function | Description |
 |:--- |:--- |
 | `pot_size(type)` | Get pot body dimensions |
-| `pot_z(type)` | Ideal distance behind panel surface to get the nut on comfortably |
+| `pot_z(type, washer = true)` | Ideal distance behind panel surface to get the nut and washer on comfortably |
 
 ### Modules
 | Module | Description |
 |:--- |:--- |
-| `potentiometer(type, thickness = 3, shaft_length = undef)` | Draw a potentiometer with nut spaced by specified thickness |
+| `pot_nut(type, washer = true)` | Draw the nut for a potentiometer and possibly a washer |
+| `potentiometer(type, thickness = 3, shaft_length = undef, value = false)` | Draw a potentiometer with nut spaced by specified thickness |
 
 ![potentiometers](tests/png/potentiometers.png)
 
+### Vitamins
+| Qty | Module call | BOM entry |
+| ---:|:--- |:---|
+|   1 | `potentiometer(BTT_encoder)` |  BTT_encoder |
+|   1 | `potentiometer(KY_040_encoder)` |  KY_040_encoder |
+|   1 | `potentiometer(imperial_pot)` |  Potentiometer imperial_pot |
+|   1 | `potentiometer(imperial_pot_x2)` |  Potentiometer imperial_pot_x2 |
+|   1 | `potentiometer(metric_pot)` |  Potentiometer metric_pot |
+
 
 <a href="#top">Top</a>
 
@@ -2841,6 +2862,7 @@ Face order is bottom, top, left, right, front, back.
 |:--- |:--- |
 | `atx_psu(type)` | True if an ATX style PSU |
 | `psu_accessories(type)` | Accessories to add to BOM, e.g. mains lead |
+| `psu_face_cutout(type)` | Panel cutout to accommodate this face, e.g. for ATX |
 | `psu_face_cutouts(type)` | List of polygons to remove |
 | `psu_face_fan(type)` | Fan x,y position and type |
 | `psu_face_grill(type)` | Is this face a grill |
@@ -2876,7 +2898,7 @@ Face order is bottom, top, left, right, front, back.
 ### Modules
 | Module | Description |
 |:--- |:--- |
-| `atx_psu_cutout(type)` | Cut out for the rear of an ATX |
+| `atx_psu_cutout(type, face = f_front)` | Cut out for the rear of an ATX, which is actually f_front! |
 | `psu(type)` | Draw a power supply |
 | `psu_screw_positions(type, face = undef)` | Position children at the screw positions on the preferred mounting face, which can be overridden. |
 | `terminal_block(type, ways)` | Draw a power supply terminal block |
@@ -2886,18 +2908,18 @@ Face order is bottom, top, left, right, front, back.
 ### Vitamins
 | Qty | Module call | BOM entry |
 | ---:|:--- |:---|
-|   1 |  |  IEC mains lead |
+|   2 |  |  IEC mains lead |
 |   1 | `psu(ATX500)` |  PSU ATX500 |
-|   1 | `psu(KY240W)` |  PSU KY-240W-12-L |
+|   1 | `psu(ATX300)` |  PSU FSP300-60GHX |
+|   1 | `psu(KY240W)` |  PSU KY-240W-12-L - not shown |
 |   1 | `psu(PD_150_12)` |  PSU PD-150-12 |
 |   1 | `psu(S_250_48)` |  PSU S-250-48 |
 |   1 | `psu(S_300_12)` |  PSU S-300-12 |
-|   4 | `screw(No632_pan_screw, 8)` |  Screw 6-32 pan x  8mm |
-|   4 | `screw(M3_cap_screw, 8)` |  Screw M3 cap x  8mm |
+|   9 | `screw(No632_pan_screw, 8)` |  Screw 6-32 pan x  8mm |
 |   8 | `screw(M3_pan_screw, 8)` |  Screw M3 pan x  8mm |
 |   4 | `screw(M4_cap_screw, 8)` |  Screw M4 cap x  8mm |
-|  12 | `washer(M3_washer)` |  Washer  M3 x 7mm x 0.5mm |
-|   8 | `washer(M4_washer)` |  Washer  M4 x 9mm x 0.8mm |
+|   8 | `washer(M3_washer)` |  Washer  M3 x 7mm x 0.5mm |
+|  13 | `washer(M4_washer)` |  Washer  M4 x 9mm x 0.8mm |
 
 
 <a href="#top">Top</a>
@@ -5189,7 +5211,7 @@ inserts don't grip well in rubber.
 |:--- |:--- |
 | `fastened_insert_foot_assembly(t = 3, type = insert_foot)` | Assembly with fasteners in place for specified sheet thickness |
 | `foot(type = foot)` | Generate STL |
-| `foot_assembly(t = 0, type = foot, flip = false)` | Assembly with fasteners in place for specified sheet thickness |
+| `foot_assembly(t = 0, type = foot, flip = false, no_washer = false)` | Assembly with fasteners in place for specified sheet thickness |
 | `insert_foot(type = insert_foot)` | Generate STL for foot with insert |
 | `insert_foot_assembly(type = insert_foot)` | Printed part with insert in place |
 
@@ -5267,6 +5289,75 @@ Printed handle that can be printed without needing support material due to its t
 |   1 | handle_assembly |
 
 
+<a href="#top">Top</a>
+
+---
+<a name="Knob"></a>
+## Knob
+Parametric knobs for potentiometers and encoders.
+
+A knob can be constructed by specififying all the parameters or the potentiometer can be specified to customise it for its shaft with a recess to clear the nut, washer and thread.
+An optional skirt and / or a pointer can be specified.
+
+The STL includes a support membrane that needs to be cut out and a thread needs to be tapped for the grub screw.
+
+[printed/knob.scad](printed/knob.scad) Implementation.
+
+[tests/knob.scad](tests/knob.scad) Code for this example.
+
+### Properties
+| Function | Description |
+|:--- |:--- |
+| `knob_bot_d(type)` | Diameter at the bottom |
+| `knob_corner_r(type)` | Rounded top corner |
+| `knob_flat_d(type)` | The shaft diameter at the flat |
+| `knob_flat_h(type)` | The length of the flat |
+| `knob_height(type)` | Height |
+| `knob_name(type)` | Name for the stl maker |
+| `knob_pointer(type)` | None |
+| `knob_recess(type)` | Recess diameter and thickness to clear nut and thread, diameter, nut height, thread height |
+| `knob_screw(type)` | The grub screw type |
+| `knob_shaft_d(type)` | Shaft diameter |
+| `knob_shaft_len(type)` | Shaft length |
+| `knob_skirt(type)` | Skirt diameter and thickness |
+| `knob_top_d(type)` | Diameter at the top |
+
+### Functions
+| Function | Description |
+|:--- |:--- |
+| `knob(name = "knob", top_d = 12, bot_d = 15, height = 18, shaft_length, skirt = [20, 2], pointer = false, corner_r = 2, screw = M3_grub_screw, shaft_d, flat_d, flat_h, recess)` | Constructor |
+| `knob_for_pot(pot, thickness, z = 1, washer = true, top_d = 12, bot_d = 15, height = 0, shaft_length = undef, skirt = [20, 2], pointer = false, corner_r = 2, screw = M3_grub_screw)` | Construct a knob to fit specified pot |
+
+### Modules
+| Module | Description |
+|:--- |:--- |
+| `knob(type, supports = true)` | Generate the STL for a knob |
+| `knob_assembly(type) explode(40, explode_children = true)` | Assembly with the grub screw in place |
+
+![knob](tests/png/knob.png)
+
+### Vitamins
+| Qty | Module call | BOM entry |
+| ---:|:--- |:---|
+|   1 | `potentiometer(BTT_encoder)` |  BTT_encoder |
+|   1 | `potentiometer(KY_040_encoder)` |  KY_040_encoder |
+|   1 | `potentiometer(imperial_pot)` |  Potentiometer imperial_pot |
+|   1 | `potentiometer(imperial_pot_x2)` |  Potentiometer imperial_pot_x2 |
+|   1 | `potentiometer(metric_pot)` |  Potentiometer metric_pot |
+|   1 | `screw(M3_grub_screw, 3)` |  Screw M3 grub x  3mm |
+|   2 | `screw(M3_grub_screw, 4)` |  Screw M3 grub x  4mm |
+|   1 | `screw(M3_grub_screw, 6)` |  Screw M3 grub x  6mm |
+
+### Printed
+| Qty | Filename |
+| ---:|:--- |
+|   1 | BTT_encoder_knob.stl |
+|   1 | KY_040_encoder_knob.stl |
+|   1 | imperial_pot_knob.stl |
+|   1 | imperial_pot_x2_knob.stl |
+|   1 | metric_pot_knob.stl |
+
+
 <a href="#top">Top</a>
 
 ---

scripts/changelog.py

@@ -82,6 +82,7 @@ def codify(word, url):
 
 
 def fixup_comment(comment, url):
+    comment = comment.replace('cnc_bit+_r', 'cnc_bit_r')
     """ markup code words and fix new paragraphs """
     result = ''
     word = ''
@@ -161,6 +162,6 @@ if __name__ == '__main__':
 
             # Print commits excluding merges
 
-            if not c.comment.startswith('Merge branch') and not c.comment.startswith('Merge pull') and not re.match(r'U..ated changelog.*', c.comment):
+            if not c.comment.startswith('Merge branch') and not c.comment.startswith('Merge pull') and not re.match(r'U..ated chang.*log.*', c.comment):
                 print('* %s [`%s`](%s "show commit") %s %s\n' % (c.date, c.hash[:7], url + '/commit/' + c.hash, initials(c.author), fixup_comment(c.comment, url)), file = file)
     do_cmd(('codespell -w -L od ' + filename).split())

tests/7_segments.scad

@@ -21,9 +21,11 @@ use <../utils/layout.scad>
 
 include <../vitamins/7_segments.scad>
 
+function digits(s) = 7_segment_digits(s) < 2 ? 2 : 1;
+
 module 7_segments()
-    layout([for(s = 7_segments) 7_segment_size(s).x * 2], 5) let(s = 7_segments[$i])
-        7_segment_digits(s, 2);
+    layout([for(s = 7_segments) 7_segment_size(s).x * digits(s)], 3) let(s = 7_segments[$i])
+        7_segment_digits(s, digits(s));
 
 if($preview)
     7_segments();

tests/PSUs.scad

@@ -16,20 +16,32 @@
 // You should have received a copy of the GNU General Public License along with NopSCADlib.
 // If not, see <https://www.gnu.org/licenses/>.
 //
+show_cutout = false;
+
 include <../core.scad>
 include <../vitamins/psus.scad>
 
 use <../utils/layout.scad>
 
+
+
 module psus()
-    layout([for(p = psus) psu_width(p)], 10) let(p = psus[$i])
+    layout([for(p = psus) atx_psu(p) ? psu_length(p) : psu_width(p)], 10) let(p = psus[$i])
     rotate(atx_psu(p) ? 0 : 90) {
         psu(p);
 
         psu_screw_positions(p)
             translate_z(3)
                 screw_and_washer(psu_screw(p), 8);
+
+        if(show_cutout && atx_psu(p))
+            #atx_psu_cutout(p);
     }
 
-if($preview)
+if($preview) {
     psus();
+
+    for(p = psus_not_shown)
+        hidden()
+            psu(p);
+}

tests/knob.scad

@@ -0,0 +1,58 @@
+//
+// NopSCADlib Copyright Chris Palmer 2021
+// 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/>.
+//
+z = 1; // [0: 5]
+thickness = 3; // [0: 5]
+shaft_length = 10;
+
+include <../core.scad>
+use <../printed/knob.scad>
+use <../utils/layout.scad>
+
+include <../vitamins/potentiometers.scad>
+
+knobs = [for(i = [0 : len(potentiometers) - 1]) let(p = potentiometers[i])
+     knob_for_pot(p, thickness, z, shaft_length = pot_shaft(p).z > 20 ? shaft_length : undef,
+                  top_d   = [10,    12,      20,    16,        16       ][i],
+                  bot_d   = [10,    15,      20,    20,        20       ][i],
+                  skirt   = [false, [20, 2], false,      [27, 1.5], [27, 1.5]][i],
+                  pointer = [false, false,   [14, [1, 5], 2], [13.5, [1, 1], 3], [13.5, [1, 3], 3]][i],
+                  screw = let(s = pot_shaft(p)) s.y > s.x / 2 ? M3_grub_screw : false
+                 )];
+
+
+module knobs(show_pot = false)
+    layout([for(p = potentiometers) pot_size(p).x], 5) let(p = potentiometers[$i])
+        if($preview) {
+            translate_z(z)
+                knob_assembly(knobs[$i]);
+
+            if(show_pot)
+                translate_z(-thickness)
+                    vflip() {
+                        potentiometer(p, shaft_length = shaft_length);
+
+                        translate_z(-thickness)
+                            pot_nut(p);
+                    }
+        }
+        else
+            knob(knobs[$i]);
+
+
+knobs(true);

tests/potentiometers.scad

@@ -23,9 +23,13 @@ include <../vitamins/potentiometers.scad>
 
 module potentiometers()
     layout([for(p = potentiometers) pot_size(p).x])
-        hflip()
+        hflip() {
             potentiometer(potentiometers[$i], shaft_length = 30);
 
+            translate_z(-3)
+                pot_nut(potentiometers[$i]);
+        }
+
 if($preview)
     let($show_threads = true)
         potentiometers();

utils/core/polyholes.scad

@@ -103,7 +103,7 @@ module drill(r, h = 100, center = true) //! Make a cylinder for drilling holes s
 
 module poly_drill(r, h = 100, center = true) //! Make a cylinder for drilling holes suitable for CNC routing if cnc_bit_r is non zero, otherwise a poly_cylinder.
     if(cnc_bit_r)
-        drill(r, h, center = true);
+        drill(r, h, center = center);
     else
         poly_cylinder(r, h, center);
 

vitamins/7_segment.scad

@@ -18,22 +18,33 @@
 //
 
 //
-//! 7 Segment displays
+//! 7 Segment displays.
+//!
+//! Can be single digits stacked side by side or can be multiple digits in one unit. This is determined by the overall width compared to the width of a digit.
+//! Presence of a decimal point is determined by the number of pins. Its position is determined by a heuristic.
 //
 include <../utils/core/core.scad>
 
 
 function 7_segment_size(type)       = type[1]; //! Size of the body
-function 7_segment_digit_size(type) = type[2]; //! Size of the actual digit and segemnt width and angle
+function 7_segment_digit_size(type) = type[2]; //! Size of the actual digit and segment width and angle
 function 7_segment_pins(type)       = type[3]; //! [x, y] array of pins
 function 7_segment_pin_pitch(type)  = type[4]; //! x and y pin pitches and pin diameter
 
+function 7_segment_digits(type) = let(d = 7_segment_digit_size(type)) floor(7_segment_size(type).x / (d.x + d.y * tan(d[3])));
+
 module 7_segment_digit(type, colour = grey(95), pin_length = 6.4) { //! Draw the specified 7 segment digit
     size = 7_segment_size(type);
     digit = 7_segment_digit_size(type);
     pins = 7_segment_pins(type);
     pin_pitch = 7_segment_pin_pitch(type);
 
+    t = digit[2];
+    a = digit[3];
+    digits = 7_segment_digits(type);
+    pitch = size.x / digits;
+    has_dp = (pins.x * pins.y) > 7 + digits;
+
     color(grey(95))
         linear_extrude(size.z)
             square([size.x - 0.1, size.y], center = true);
@@ -43,48 +54,48 @@ module 7_segment_digit(type, colour = grey(95), pin_length = 6.4) { //! Draw the
             cube([size.x - 0.1, size.y, eps], center = true);
 
     color(colour)
-         translate_z(size.z)
-            linear_extrude(2 * eps) {
-                t = digit[2];
-                a = digit[3];
-                sq = [digit.x - 2 * t, (digit.y - 3 * t) / 2];
+        for(i = [0 : digits - 1])
+            translate([(i - (digits - 1) / 2) * pitch, 0, size.z])
+                linear_extrude(2 * eps) {
+                    sq = [digit.x - 2 * t, (digit.y - 3 * t) / 2];
 
-                multmatrix([                    // Skew
-                    [1, tan(a), 0, 0],
-                    [0, 1, 0, 0],
-                    [0, 0, 1, 0],
-                    [0, 0, 0, 1]
-                ])
-                difference() {
-                    square([digit.x, digit.y], center = true);
+                    multmatrix([                    // Skew
+                        [1, tan(a), 0, 0],
+                        [0, 1, 0, 0],
+                        [0, 0, 1, 0],
+                        [0, 0, 0, 1]
+                    ])
+                    difference() {
+                        square([digit.x, digit.y], center = true);
 
-                    for(y = [-1, 1], x = [-1, 1]) {
-                        translate([0, y * (t + sq.y) / 2])
-                            square(sq, center = true);
+                        for(y = [-1, 1], x = [-1, 1]) {
+                            translate([0, y * (t + sq.y) / 2])
+                                square(sq, center = true);
 
 
-                        translate([x * digit.x / 2, y * digit.y / 2])
-                            rotate(-45 * x * y) {
-                                square([10, t], center = true);
+                            translate([x * digit.x / 2, y * digit.y / 2])
+                                rotate(-45 * x * y) {
+                                    square([10, t], center = true);
 
-                                square([t / 5, 10], center = true);
-                            }
+                                    square([t / 5, 10], center = true);
+                                }
 
-                        translate([x * (digit.x - t) / 2, 0])
-                            rotate(45) {
-                                square([t / 5, t * 2], center = true);
+                            translate([x * (digit.x - t) / 2, 0])
+                                rotate(45) {
+                                    square([t / 5, t * 2], center = true);
 
-                                square([t * 2, t / 5], center = true);
+                                    square([t * 2, t / 5], center = true);
 
-                                translate([x * t / 2, -x * t / 2])
-                                    square([t, t], center = true);
-                            }
+                                    translate([x * t / 2, -x * t / 2])
+                                        square([t, t], center = true);
+                                }
+                        }
                     }
+                    r = 1.25 * t / 2;
+                    if(has_dp)
+                        translate([max(digit.x / 2 + digit.y / 2 * tan(a) - r, digit.x / 2 - digit.y /2 * tan(a) + r * 1.25), -digit.y / 2 + r])
+                            circle(r);
                 }
-                r = 1.25 * t / 2;
-                translate([digit.x / 2 - r + digit.y / 2 * tan(a), -digit.y / 2 + r])
-                    circle(r);
-            }
 
     color(silver)
         translate_z(-pin_length)

vitamins/7_segments.scad

@@ -21,8 +21,10 @@
 //! 7 Segment displays
 //
 
+02531A    = ["02531A",    [15.0,  8, 4.0], [3.5, 6.2,  0.7,  5], [5, 2], [inch(0.1), inch(0.1), 0.45]];
+02352A    = ["02352A",    [15.0,  8, 4.0], [3.5, 6.2,  0.6,  5], [6, 2], [inch(0.1), 5.52,      0.45]];
 WT5011BSR = ["WT5011BSR", [12.7, 19, 8.2], [7.2, 12.7, 1.2, 10], [5, 2], [inch(0.1), inch(0.6), 0.4]];
 
-7_segments = [ WT5011BSR ];
+7_segments = [02531A, 02352A, WT5011BSR];
 
 use <7_segment.scad>

vitamins/extrusion.scad

@@ -138,6 +138,6 @@ 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(grey(90))
-        linear_extrude(length, center = center)
+        linear_extrude(length, center = center, convexity = 8)
             extrusion_cross_section(type, cornerHole);
 }

vitamins/fuseholder.scad

@@ -68,7 +68,7 @@ module fuseholder(thickness) { //! Fuseholder with nut in place for specified pa
     colour = grey(40);
     vflip()
         translate_z(thickness)
-            explode(height) {
+            explode(height, explode_children = true) {
                 color(colour) {
                     tube(or = nut_d / 2, ir = thread_d / 2, h = nut_flange_t, center = false);
 
@@ -79,7 +79,7 @@ module fuseholder(thickness) { //! Fuseholder with nut in place for specified pa
                             circle(d = thread_d);
                         }
                 }
-                if(show_threads)
+                if(show_threads && exploded())
                     female_metric_thread(thread_d, thread_p, nut_t, false, colour = colour);
             }
     //

vitamins/iec.scad

@@ -203,9 +203,10 @@ module iec(type) { //! Draw specified IEC connector
 function iec_spade_depth(type) = iec_depth(type) + max([for(spade = iec_spades(type)) spade[1]]);
 
 module iec_screw_positions(type) //! Position children at the screw holes
-    for(side = [-1, 1])
-        translate([side * iec_pitch(type) / 2, 0])
-            children();
+    if(iec_pitch(type))
+        for(side = [-1, 1])
+            translate([side * iec_pitch(type) / 2, 0])
+                children();
 
 module iec_holes(type, h = 100, poly = false, horizontal = false, insert = false) { //! Drill the required panel holes
     clearance = 0.2;

vitamins/iecs.scad

@@ -59,7 +59,8 @@ IEC_320_C14_switched_fused_inlet = ["IEC_320_C14_switched_fused_inlet", "IEC320
                                                                      M3_cs_cap_screw, 40,  27, 16,46.8,3,28,   48, 2.4, 1.0, 33,   57, 4, 3.0, 48,16.5, iec320c14FusedSwitchedSpades,  false ];
 IEC_inlet       = ["IEC_inlet",       "IEC inlet",                   M3_cs_cap_screw, 40, 28, 18, 20, 3, 28,   20.5, 4, 2.5, 37,   23, 1, 2.5, 48, 14, inlet_spades,  false ];
 IEC_inlet_atx   = ["IEC_inlet_atx",   "IEC inlet for ATX",           M3_cs_cap_screw, 40, 27, 18, 19, 3, 30.5, 22,   2, 2.0, 30.5, 22, 2, 4.0, 50, 15, atx_spades,    false ];
+IEC_inlet_atx2  = ["IEC_inlet_atx2",  "IEC pressfit inlet for ATX",  M3_cs_cap_screw,  0, 27, 18, 19, 3, 30.5, 22,   1, 0,   30.5, 22, 1, 4.0, 50, 15, atx_spades,    false ]; // lugless
 IEC_outlet      = ["IEC_outlet",      "IEC outlet RS 811-7193",      M3_cs_cap_screw, 40, 32, 18, 24, 3, 28,   20.5, 2, 0.0, 29,   29, 2, 2.8, 50, 23, outlet_spades, true ];
 
-iecs = [IEC_inlet, IEC_inlet_atx, IEC_fused_inlet, IEC_fused_inlet2, IEC_320_C14_switched_fused_inlet, IEC_outlet];
+iecs = [IEC_inlet_atx2, IEC_inlet, IEC_inlet_atx, IEC_fused_inlet, IEC_fused_inlet2, IEC_320_C14_switched_fused_inlet, IEC_outlet];
 use <iec.scad>

vitamins/jack.scad

@@ -29,10 +29,11 @@ use <../utils/thread.scad>
 use <ring_terminal.scad>
 
 function jack_4mm_hole_radius() = 8/2; //! Panel hole radius for 4mm jack
+function jack_4mm_flange_radius() = 10.6 / 2; //! 4mm jack socket flange radius
 
 module jack_4mm(colour, thickness, display_colour = false) { //! Draw a 4mm jack socket with nut positioned for specified panel thickness
     vitamin(str("jack_4mm(\"", colour, "\", 3", arg(display_colour, false), "): 4mm jack socket ", colour));
-    flange_d = 10.6;
+    flange_r = jack_4mm_flange_radius();
     flange_t = 3;
     flange_id = 4.6;
     length = 28.5;
@@ -50,7 +51,7 @@ module jack_4mm(colour, thickness, display_colour = false) { //! Draw a 4mm jack
     explode(length, offset = -length + flange_t) {
         color(display_colour ? display_colour : colour) rotate_extrude() difference() {
             union() {
-                square([flange_d / 2, flange_t]);
+                square([flange_r, flange_t]);
 
                 translate([0, -sleaved])
                     square([sleaved_d / 2, sleaved]);
@@ -77,12 +78,12 @@ module jack_4mm(colour, thickness, display_colour = false) { //! Draw a 4mm jack
                 spade(spade4p8l, spade);
     }
     translate_z(-thickness)
-        explode(-length)
+        explode(-length, explode_children = true)
             vflip() {
                 color(silver)
                     tube(ir = thread_d / 2, or = nut_d / 2, h = nut_t, center = false);
 
-                if(show_threads)
+                if(show_threads && exploded())
                     female_metric_thread(thread_d, thread_p, nut_t, false, colour = silver);
             }
 }

vitamins/magnet.scad

@@ -22,10 +22,11 @@
 //
 include <../utils/core/core.scad>
 
-function magnet_od(type)    = type[1]; //! Outer diameter
-function magnet_id(type)    = type[2]; //! Inside diameter if a ring
-function magnet_h(type)     = type[3]; //! Height
-function magnet_r(type)     = type[4]; //! Corner radius
+function magnet_name(type)  = type[1]; //! Name
+function magnet_od(type)    = type[2]; //! Outer diameter
+function magnet_id(type)    = type[3]; //! Inside diameter if a ring
+function magnet_h(type)     = type[4]; //! Height
+function magnet_r(type)     = type[5]; //! Corner radius
 
 module magnet(type) { //! Draw specified magnet
     od = magnet_od(type);
@@ -33,7 +34,7 @@ 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_name(type), ", ", od, "mm diameter, ", h, "mm high", id ? str(", ", id, "mm bore") : "" ));
 
     or = od / 2;
     ir = id / 2;

vitamins/magnets.scad

@@ -20,11 +20,12 @@
 //! Cylindrical and ring magnets.
 //
 
-//                          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     = ["MAG5x8",     8,         0,         5,         0.5];
+//                          name,                     od,        id,        h,         r
+MAG8x4x4p2 = ["MAG8x4x4p2", "Magnet",                 8,         4.2,       4,         0.5];
+MAG484     = ["MAG484",     "Magnet",                 inch(1/4), inch(1/8), inch(1/4), 0.5];
+MAG5x8     = ["MAG5x8",     "Magnet",                 8,         0,         5,         0.5];
+MAGRE6x2p5 = ["MAGRE6x2p5", "Radial encoder magnet",  6,         0,         2.5,       0.5];
 
-magnets = [MAG8x4x4p2, MAG484, MAG5x8];
+magnets = [MAG8x4x4p2, MAG484, MAG5x8, MAGRE6x2p5];
 
 use <magnet.scad>

vitamins/potentiometer.scad

@@ -27,26 +27,66 @@ pot_proud = 0.3;
 spigot_r = 0.5;
 tab = [3.2, 0.5];
 
-function pot_body(type)     = type[0];  //! Body diameter or width & depth, height and corner radius
-function pot_face(type)     = type[1];  //! Faceplate rib width, plate depth and plate height
-function pot_wafer(type)    = type[2];  //! Width, diameter and thickness of the track wafer plus true if curved
-function pot_gangs(type)    = type[3];  //! Number of gangs for mult-gang pot
-function pot_thread_d(type) = type[4];  //! Nomininal thread diameter
-function pot_thread_p(type) = type[5];  //! Thread pritch
-function pot_thread_h(type) = type[6];  //! Height of threaded part
-function pot_boss_d(type)   = type[7];  //! Boss diameter
-function pot_boss_h(type)   = type[8];  //! Boss height
-function pot_spigot(type)   = type[9];  //! Spigot width, length and height above the boss
-function pot_spigot_x(type) = type[10]; //! Spigot offset from the shaft centre
-function pot_shaft(type)    = type[11]; //! Diameter, flat diameter, length and flat/slot length and colour. If flat diameter is less than the radius then it is a slot width
-function pot_neck(type)     = type[12]; //! Diameter and length of the shaft neck
+function pot_body(type)     = type[1];  //! Body diameter or width & depth, height and corner radius
+function pot_face(type)     = type[2];  //! Faceplate rib width, plate depth and plate height
+function pot_wafer(type)    = type[3];  //! Width, diameter and thickness of the track wafer plus true if curved
+function pot_gangs(type)    = type[4];  //! Number of gangs for mult-gang pot
+function pot_thread_d(type) = type[5];  //! Nomininal thread diameter
+function pot_thread_p(type) = type[6];  //! Thread pritch
+function pot_thread_h(type) = type[7];  //! Height of threaded part
+function pot_boss_d(type)   = type[8];  //! Boss diameter
+function pot_boss_h(type)   = type[9];  //! Boss height
+function pot_spigot(type)   = type[10]; //! Spigot width, length and height above the boss
+function pot_spigot_x(type) = type[11]; //! Spigot offset from the shaft centre
+function pot_shaft(type)    = type[12]; //! Diameter, flat diameter, length and flat/slot length and colour. If flat diameter is less than the radius then it is a slot width
+function pot_neck(type)     = type[13]; //! Diameter and length of the shaft neck
+function pot_nut(type)      = type[14]; //! Across flat diameter and thickness of the nut
+function pot_washer(type)   = type[15]; //! Outside diameter and thickness of the washer
 
 function pot_size(type) = let(d = pot_body(type)) len(d) > 3 ? [d.x , d.y, d.z] : [d.x, d.x, d.y]; //! Get pot body dimensions
 
-function pot_z(type) = pot_thread_h(type) - pot_nut_t - pot_proud; //! Ideal distance behind panel surface to get the nut on comfortably
+function pot_z(type, washer = true) = pot_thread_h(type) - pot_nut(type)[1] - pot_proud - (washer ? pot_washer(type)[1] : 0); //! Ideal distance behind panel surface to get the nut and washer on comfortably
 function pot_spigot_r(type) = let(sp = pot_spigot(type)) sp.x > 2 * spigot_r ? spigot_r : 0;
 
-module potentiometer(type, thickness = 3, shaft_length = undef) {//! Draw a potentiometer with nut spaced by specified thickness
+module pot_nut(type, washer = true) { //! Draw the nut for a potentiometer and possibly a washer
+    nut = pot_nut(type);
+    washer = washer ? pot_washer(type) : false;
+    nut_z = washer ? washer[1] : 0;
+    thread_d = pot_thread_d(type);
+    vflip() explode(23, explode_children = true) {
+        if(washer)
+            color(washer[2])
+                linear_extrude(washer[1])
+                    difference() {
+                        circle(d = washer.x);
+
+                        circle(d =  thread_d);
+
+                        serations = washer[3];
+                        if(serations)
+                            for(i = [1 : serations])
+                                rotate(i * 360 / serations)
+                                    translate([thread_d / 2, 0])
+                                        square([(washer.x - thread_d) / 2, PI * thread_d / (2 * serations)], center = true);
+                    }
+
+        if(nut)
+            color(nut[2])
+                translate_z(nut_z + exploded() * 10) {
+                    linear_extrude(nut[1])
+                        difference() {
+                            circle(d = nut.x / cos(30), $fn = 6);
+
+                            circle(d =  thread_d);
+                        }
+
+                    if(show_threads && exploded())
+                        female_metric_thread(thread_d, pot_thread_p(type), nut[1], center = false, colour = nut[2]);
+                }
+    }
+}
+
+module potentiometer(type, thickness = 3, shaft_length = undef, value = false) {//! Draw a potentiometer with nut spaced by specified thickness
     bh = pot_boss_h(type);
     s = pot_size(type);
     face =  pot_face(type);
@@ -57,6 +97,7 @@ module potentiometer(type, thickness = 3, shaft_length = undef) {//! Draw a pote
     thread_d = pot_thread_d(type);
     thread_h = pot_thread_h(type);
     shaft = pot_shaft(type);
+    vitamin(str("potentiometer(", type[0], "): ", slice(type[0], start = -8) != "_encoder" ? "Potentiometer " : "", value ? value : type[0]));
 
     color(dia_cast_colour) {
         // Boss
@@ -170,7 +211,7 @@ module potentiometer(type, thickness = 3, shaft_length = undef) {//! Draw a pote
 
                 color(shaft[4])
                     vflip()
-                    cylinder(d = shaft.x, h = gap);
+                        cylinder(d = shaft.x, h = gap);
             }
         }
 

vitamins/potentiometers.scad

@@ -17,12 +17,12 @@
 // If not, see <https://www.gnu.org/licenses/>.
 //
 //! Potentiometers and rotary encoders
-//                body     h     r     face               wafer                 gangs thread d   pitch       h     boss  h    spigot w, l, h  offset  shaft d flat h flat h   colour     neck
-imperial_pot_x2 = [[24,     22.5, 1.5], [5.7, 15.33, 0.8], [20, 28, 1.6, true],  2,   inch(3/8), inch(1/32), 6.35, 13.6, 2.4, [1.12, 3.03, 2],    11, [6.27, 5.5, 44.3, 44.3, silver],   [0, 0]];
-imperial_pot    = [[24,     12,   1.5], [5.7, 15.33, 0.8], [20, 28, 1.6, true],  1,   inch(3/8), inch(1/32), 6.35, 13.6, 2.4, [1.12, 3.03, 2],    11, [6.27, 5.5, 44.3, 44.3, grey(95)], [0, 0]];
-metric_pot      = [[23,     11,   1.0], [0, 15.33, 0.8],   [18, 27, 1.2, false], 1,   10,        0.75,       7.32, 13.9, 2.5, [1.12, 2.88, 1.26], 11, [6.27, 5.5, 43.8, 43.5, grey(50)], [0, 0]];
-KY_040_encoder  = [[12, 12, 6.5,  1.0], false,             false,                1,    7,        0.75,       7,    0,    0,   [0.4,  2,     0.8],5.8, [6,    4.5, 13,   10,   grey(60)], [4, 0.5]];
-BTT_encoder     = [[12, 11, 6,    0.5], false,             false,                1,    6,        0.8,        4.5,  0,    0,   false,               0, [5,    0.75, 9.5, 9,    silver],   [3, 0.5]];
+//                                    body     h     r     face               wafer                 gangs thread d  pitch       h     boss  h    spigot w, l, h  offset  shaft d flat d shaft h flat h colour neck   nut                  washer
+imperial_pot_x2 = ["imperial_pot_x2", [24,     22.5, 1.5], [5.7, 15.33, 0.8], [20, 28, 1.6, true],  2,   inch(3/8), inch(1/32), 6.35, 13.6, 2.4, [1.12, 3.03, 2],    11, [6.27, 5.5, 44.3, 44.3, silver],   [0, 0],  [13.3, 2.4, brass],  [17.4, 0.8, grey(20), 9]];
+imperial_pot    = ["imperial_pot",    [24,     12,   1.5], [5.7, 15.33, 0.8], [20, 28, 1.6, true],  1,   inch(3/8), inch(1/32), 6.35, 13.6, 2.4, [1.12, 3.03, 2],    11, [6.27, 5.5, 44.3, 44.3, grey(95)], [0, 0],  [13.3, 2.4, brass],  [17.4, 0.8, grey(20), 9]];
+metric_pot      = ["metric_pot",      [23,     11,   1.0], [0, 15.33, 0.8],   [18, 27, 1.2, false], 1,   10,        0.75,       7.32, 13.9, 2.5, [1.12, 2.88, 1.26], 11, [6.27, 5.5, 43.8, 43.5, grey(50)], [0, 0],  [12.8, 2,   silver], [17.7, 0.8, grey(20), 10]];
+KY_040_encoder  = ["KY_040_encoder",  [12, 12, 6.5,  1.0], false,             false,                1,    7,        0.75,       7,    0,    0,   [0.4,  2,     0.8],5.8, [6,    4.5, 13,   10,   grey(60)], [4, 0.5],[9.8,  2.2, silver], [11.5, 0.4, silver]];
+BTT_encoder     = ["BTT_encoder",     [12, 11, 6,    0.5], false,             false,                1,    6,        0.8,        4.5,  0,    0,   false,               0, [5,    0.75, 9.5, 9,    silver],   [3, 0.5]];
 
 potentiometers = [BTT_encoder, KY_040_encoder, metric_pot, imperial_pot, imperial_pot_x2];
 

vitamins/psu.scad

@@ -39,6 +39,7 @@ function psu_face_fan(type)          = type[4];     //! Fan x,y position and typ
 function psu_face_iec(type)          = type[5];     //! IEC connector x,y, rotation and type
 function psu_face_switch(type)       = type[6];     //! Rocker switch x,y, rotation and type
 function psu_face_vents(type)        = type[7];     //! Vents array position x,y, rotation, size and corner radius
+function psu_face_cutout(type)       = type[8];     //! Panel cutout to accommodate this face, e.g. for ATX
 
 function psu_name(type)              = type[1];     //! The part name
 function psu_length(type)            = type[2];     //! Length
@@ -124,19 +125,23 @@ function psu_face_transform(type, face) =           //! Returns a transformation
         translations = [h / 2, h / 2, l / 2 - left, l / 2 - right, w / 2, w / 2]
     ) translate([0, 0, h / 2]) * rotate(rotations[face]) * translate([0, 0, translations[face]]);
 
-grill_hole = 4.5;
-grill_gap = 1.5;
-module psu_grill(width, height) {
-    nx = floor(width / (grill_hole + grill_gap));
+module psu_grill(width, height, grill_hole = 4.5, grill_gap = 1.5, fn = 0, avoid = []) {
+    nx = floor(width / (grill_hole + grill_gap)) + 1;
     xpitch = width / nx;
-    ny = floor(height / ((grill_hole + grill_gap) * cos(30)));
+    ny = floor(height / ((grill_hole + grill_gap) * cos(30))) + 1;
     ypitch = height / ny;
+    r = grill_hole / 2;
+    avoid = avoid ? [for(p = avoid) [[p.x - p[2] / 2 - r, p.y - p[3] / 2 - r], [p.x + p[2] / 2 + r, p.y + p[3] / 2 + r]]] : false;
+
+    function in(regions, x, y) = [for(r = regions) if(x >= r[0].x && x <= r[1].x && y >= r[0].y && y <= r[1].y) true];
 
     for(y = [0 : ny - 1], x = [0 : nx - 1 - (y % 2)]) {
         x = -width / 2 + (x + 0.5 + (y % 2) / 2) * xpitch;
         y = -height / 2 + (y + 0.5) * ypitch;
-        translate([x, y])
-            circle(d = grill_hole);
+        if(!avoid || !in(avoid, x, y))
+            translate([x, y])
+                rotate(30)
+                    circle(r, $fn = fn);
     }
 }
 
@@ -185,12 +190,20 @@ module psu(type) { //! Draw a power supply
                                     translate(h)
                                         drill(screw_pilot_hole(psu_screw(type)), 0);
 
-                                if(psu_face_grill(f)) {
-                                    mx = 6;
-                                    my1 = i == f_top && psu_face_grill(faces[f_back]) ? 0 : 6;
-                                    my2 = i == f_back && psu_face_grill(faces[f_top]) ? 0 : 6;
-                                    translate([0, (my2 - my1) / 2])
-                                        psu_grill(xw - 2 * mx, yw - my1 - my2);
+                                g = psu_face_grill(f);
+                                if(g) {
+                                    list = is_list(g);
+                                    hole = list ? g[0] : 4.5;
+                                    gap = list ? g[1] : 1.5;
+                                    fn = list ? g[2] : 0;
+                                    margins = list ? g[3] : [6, 6, 6, 6];
+                                    avoid = list ? g[4] : [];
+                                    mx1 = margins[0];
+                                    mx2 = margins[1];
+                                    my1 = i == f_top && psu_face_grill(faces[f_back]) ? 0 : margins[2];
+                                    my2 = i == f_back && psu_face_grill(faces[f_top]) ? 0 : margins[3];
+                                    translate([(mx1 - mx2) / 2, (my2 - my1) / 2])
+                                        psu_grill(xw - mx1 - mx2, yw - my1 - my2, grill_hole = hole, grill_gap = gap, fn = fn, avoid = avoid);
                                 }
                                 if(fan)
                                     translate([fan.x, fan.y]) intersection() {
@@ -234,7 +247,7 @@ module psu(type) { //! Draw a power supply
                             }
 
                         if(iec)
-                            translate([iec.x, iec.y])
+                            translate([iec.x, iec.y, t])
                                 rotate(iec.z)
                                     iec_assembly(iec[3], t);
 
@@ -333,22 +346,9 @@ module psu_screw_positions(type, face = undef) { //! Position children at the sc
                     children();
 }
 
-module atx_psu_cutout(type) { //! Cut out for the rear of an ATX
-    holes = psu_face_holes(psu_faces(type)[f_front]);
-    translate([holes[0].x, -psu_width(type) / 2, psu_height(type) / 2 + holes[0].y])
-        rotate([90, 0, 0])
-            linear_extrude(100, center = true)
-                round(5)
-                polygon([ // https://www.techpowerup.com/forums/threads/pc-component-dimensions.157239, tweaked
-                    [18.7, -13],
-                    [ 5.7,   0],
-                    [ 5.7,  54],
-                    [18.7,  67],
-                    [127,   67],
-                    [140,   67 - 13 / tan(52)],
-                    [140,   -5 + 11 / tan(52)],
-                    [129,   -5],
-                    [81.3,  -5],
-                    [73.3, -13],
-                ]);
+module atx_psu_cutout(type, face = f_front) { //! Cut out for the rear of an ATX, which is actually f_front!
+    multmatrix(psu_face_transform(type, face))
+        linear_extrude(100, center = true)
+            round(5)
+                polygon(psu_face_cutout(psu_faces(type)[face]));
 }

vitamins/psus.scad

@@ -62,12 +62,64 @@ ATX500 =
             [[], 0.8, []],
             [[], 0.8, []],
             [[], 0.8, []],
-            [[[-69, -27], [-69,  37], [69,  37], [45, -37]], 0.8, [], false, [-25, 0, fan80x25], [45, -19.6, 180, IEC_inlet_atx], [45, 23, 90, small_rocker]],
+            [[[-69, -27], [-69,  37], [69,  37], [45, -37]], 0.8, [], false, [-25, 0, fan80x25], [45, -19.6, 180, IEC_inlet_atx], [45, 23, 90, small_rocker], false,
+             let(h0 = [-69, -27]) [ // https://www.techpowerup.com/forums/threads/pc-component-dimensions.157239, tweaked
+                [18.7, -13] + h0,
+                [ 5.7,   0] + h0,
+                [ 5.7,  54] + h0,
+                [18.7,  67] + h0,
+                [127,   67] + h0,
+                [140,   67 - 13 / tan(52)] + h0,
+                [140,   -5 + 11 / tan(52)] + h0,
+                [129,   -5] + h0,
+                [81.3,  -5] + h0,
+                [73.3, -13] + h0,
+             ]
+            ],
             [[], 0.8, [], true],
         ],
         [": IEC mains lead"]
     ];
 
+// Single fan in the top, wires exit opposite side from mains in
+ATX300 = let(p = [113 / 2, 51.5 / 2], s = [125, 100, 64], iec = [35.5, 6], sw = [6.5, 7])
+    ["ATX300", "FSP300-60GHX", s.x, s.y, s.z, No632_pan_screw, No6_clearance_radius, true, 0, 0, [],
+        [
+            [[], 0.5, []],
+            [[], 0.5, [], false, [0, 8, fan80x25]],
+            [[], 0.5, []],
+            [[], 0.5, []],
+            [[-p, p, [-p.x,  p.y], [p.x, -p.y], [p.x, 0]], 0.5, [], [3, 0.6, 6, [6.3, 7, 6.4, 5.5], [
+                [-p.x, -p.y, 5, 5],
+                [-p.x, p.y, 5, 5],
+                [p.x, 0, 5, 100],
+                [p.x,  p.y, 12, 6],
+                [p.x, -p.y, 12, 6],
+                [iec.x, iec.y, 32, 22],
+                [sw.x, sw.y, 20, 20],
+                [sw.x, sw.y, 27, 12],
+                ]], false, [iec.x, iec.y, 180, IEC_inlet_atx2], [sw.x, sw.y, 90, small_rocker], false, [
+                    [-s.x / 2 + 11.5, -s.z / 2 + 4.5],
+                    [-s.x / 2 + 5.5,  -s.z / 2 + 4.5 + 6 * tan(60)],
+
+                    [-s.x / 2 + 5.5,   s.z / 2 - 5.4 - 6 * tan(60)],
+                    [-s.x / 2 + 11.5,  s.z / 2 - 5.4],
+
+                    [ s.x / 2 - 14,   s.z / 2 - 5.4],
+                    [ s.x / 2 - 10.5, s.z / 2 - 5.4 - 3.5 * tan(60)],
+                    [ s.x / 2 - 10.5, -6],
+                    [ s.x / 2 - 8,    -8.5],
+
+                    [ s.x / 2 - 8, -s.z / 2 + 4.5 + 6 * tan(60)],
+                    [ s.x / 2 - 14, -s.z / 2 + 4.5],
+                ]
+             ],
+            [[], 0.5, []],
+        ],
+        [": IEC mains lead"]
+    ];
+
+
 KY240W =
     ["KY240W", "KY-240W-12-L", 199, 110, 50, M3_cap_screw, M3_clearance_radius, false, 0, 0, [],
         [
@@ -75,7 +127,6 @@ KY240W =
             [ 199 / 2 - 12,  110 / 2 - 9 ],
             [ 199 / 2 - 138, 110 / 2 - 93],
             [ 199 / 2 - 138, 110 / 2 - 9 ]]]
-
         ],
         []
     ];
@@ -179,6 +230,8 @@ External =
         [": IEC mains lead"]
     ];
 
-psus = [PD_150_12, S_250_48, S_300_12, ATX500, KY240W];
+psus = [PD_150_12, S_250_48, S_300_12, ATX300, ATX500];
+
+psus_not_shown = [KY240W];
 
 use <psu.scad>

vitamins/screw.scad

@@ -62,7 +62,9 @@ function screw_shorter_than(x) = x >= 20 ? floor(x / 5) * 5 : //! Returns the le
                                  x >= 10 ? 10 :
                                  x >=  8 ?  8 :
                                  x >=  6 ?  6 :
-                                 5;
+                                 x >=  5 ?  5 :
+                                 x >=  4 ?  4 :
+                                 3;
 
 function screw_length(screw, thickness, washers, insert = false, nyloc = false, nut = false, longer = false) = //! Returns the length of the longest or shortest screw that will got through `thickness` and `washers` and possibly an `insert`, `nut` or `nyloc`
     let(washer = washers ? washers * washer_thickness(screw_washer(screw)) : 0,
@@ -127,21 +129,26 @@ module screw(type, length, hob_point = 0, nylon = false) { //! Draw specified sc
         head_t = rad / 5;
         head_height = head_rad + head_t;
 
-        rotate_extrude()
-            difference() {
-                polygon([[0, 0], [head_rad, 0], [head_rad, -head_t], [0, -head_height]]);
-
-                translate([0, -socket_depth + eps])
-                    square([socket_rad, 10]);
-            }
-
-        translate_z(-socket_depth)
-            linear_extrude(socket_depth)
+        color(colour) {
+            rotate_extrude()
                 difference() {
-                    circle(socket_rad + 0.1);
+                    polygon([[0, 0], [head_rad, 0], [head_rad, -head_t], [0, -head_height]]);
 
-                    children();
+                    translate([0, -socket_depth + eps])
+                        square([socket_rad, 10]);
                 }
+
+            translate_z(-socket_depth)
+                linear_extrude(socket_depth)
+                    difference() {
+                        circle(socket_rad + 0.1);
+
+                        children();
+                    }
+        }
+        color(colour * 0.9)
+            translate_z(-socket_depth)
+                cylinder(h=2 * eps, r=socket_rad, $fn = 6);
     }
 
     explode(length + 10) {
@@ -158,6 +165,9 @@ module screw(type, length, hob_point = 0, nylon = false) { //! Draw specified sc
                         }
 
             }
+            color(colour * 0.9)
+                translate_z(head_height - socket_depth)
+                    cylinder(h=2 * eps, r=socket_rad, $fn = 6);
             shaft();
         }
         if(head_type == hs_grub) {
@@ -177,6 +187,9 @@ module screw(type, length, hob_point = 0, nylon = false) { //! Draw specified sc
                     translate_z(-length)
                         cylinder(r = r, h = length - socket_depth);
             }
+            color(colour * 0.8)
+                translate_z(head_height - socket_depth)
+                    cylinder(h=2 * eps, r=socket_rad, $fn = 6);
         }
         if(head_type == hs_hex) {
             color(colour)
@@ -205,6 +218,9 @@ module screw(type, length, hob_point = 0, nylon = false) { //! Draw specified sc
                         square([socket_width, 2 * socket_rad], center = true);
                     }
             }
+            color(colour * 0.9)
+                translate_z(head_height - socket_depth)
+                    cylinder(h=2 * eps, r=socket_rad + eps);
             shaft();
         }
 
@@ -232,6 +248,9 @@ module screw(type, length, hob_point = 0, nylon = false) { //! Draw specified sc
                         circle(socket_rad, $fn = 6);
                     }
             }
+            color(colour * 0.9)
+                translate_z(head_height - socket_depth)
+                    cylinder(h=2 * eps, r=socket_rad, $fn = 6);
             shaft();
         }
 
@@ -239,19 +258,17 @@ module screw(type, length, hob_point = 0, nylon = false) { //! Draw specified sc
             socket_rad = 0.6 * head_rad;
             socket_depth = 0.3 * head_rad;
             socket_width = 1;
-            color(colour)
-                cs_head(socket_rad, socket_depth) {
-                    square([2 * socket_rad, socket_width], center = true);
-                    square([socket_width, 2 * socket_rad], center = true);
-                }
+            cs_head(socket_rad, socket_depth) {
+                square([2 * socket_rad, socket_width], center = true);
+                square([socket_width, 2 * socket_rad], center = true);
+            }
 
             shaft(socket_depth);
         }
 
         if(head_type == hs_cs_cap) {
-            color(colour)
-                cs_head(socket_rad, socket_depth)
-                    circle(socket_rad, $fn = 6);
+            cs_head(socket_rad, socket_depth)
+                circle(socket_rad, $fn = 6);
 
             shaft(socket_depth);
         }