Corrected Molex USB tab length

printed/printed_box.scad

@@ -71,7 +71,7 @@ function pbox_mid_offset(type) = pbox_ridges(type).y + pbox_wall(type) / 2; // O
 
 function pbox_screw_inset(type) = //! How far the base screws are inset
     let(foot = pbox_foot(type),
-        r = foot ? foot_diameter(foot) / 2 : washer_radius(pbox_washer(type)),
+        r = foot ? foot_diameter(foot) / 2 : pbox_base(type) ? washer_radius(pbox_washer(type)) : insert_hole_radius(pbox_insert(type)),
         R =  pbox_radius(type)
     ) max(r, R - (R - r) / sqrt(2));
 

readme.md

@@ -2002,6 +2002,7 @@ PCBs and perfboard with optional components. The shape can be a rectangle with o
 | ```hdmi(type, cutout = false)``` | Draw HDMI socket |
 | ```jack(cutout = false)``` | Draw 3.5mm jack |
 | ```molex_254(ways)``` | Draw molex header |
+| ```molex_usb_Ax2(cutout)``` | Draw Molex USB connector suitable for perf board |
 | ```pcb(type)``` | Draw specified PCB |
 | ```pcb_assembly(type, height, thickness)``` | Draw PCB assembly with spaces and fasteners in place |
 | ```pcb_base(type, height, thickness, wall = 2)``` | Generate STL for a base with PCB spacers |
@@ -2124,6 +2125,7 @@ PCBs and perfboard with optional components. The shape can be a rectangle with o
 | ```hdmi(type, cutout = false)``` | Draw HDMI socket |
 | ```jack(cutout = false)``` | Draw 3.5mm jack |
 | ```molex_254(ways)``` | Draw molex header |
+| ```molex_usb_Ax2(cutout)``` | Draw Molex USB connector suitable for perf board |
 | ```pcb(type)``` | Draw specified PCB |
 | ```pcb_assembly(type, height, thickness)``` | Draw PCB assembly with spaces and fasteners in place |
 | ```pcb_base(type, height, thickness, wall = 2)``` | Generate STL for a base with PCB spacers |

tests/PCB.scad

@@ -71,10 +71,11 @@ test_pcb = ["TestPCB", "Test PCB",
         [ 10,  65, 180, "rj45"],
         [  8,  85, 180, "usb_A"],
         [  8, 105, 180, "usb_Ax2"],
-        [  3, 125, 180, "usb_uA"],
-        [  8, 140, 180, "usb_B"],
-        [  5, 160,   0, "buzzer", 4.5, 8.5],
-        [ 20, 160,   0, "buzzer"],
+        [  3, 140, 180, "usb_uA"],
+        [  8, 155, 180, "usb_B"],
+        [  8.5, 125, 180, "molex_usb_Ax2"],
+        [ 25, 200,   0, "buzzer", 4.5, 8.5],
+        [ 25, 218,   0, "buzzer"],
         [  8, 190, 180, "jack"],
         [  6, 200, 180, "barrel_jack"],
         [  5, 218, 180, "hdmi"],

vitamins/pcb.scad

@@ -85,6 +85,23 @@ module chip(length, width, thickness, colour, cutout = false) //! Draw a coloure
         color(colour)
             translate_z(thickness / 2) cube([length, width, thickness], center = true);
 
+module usb_A_tongue() {
+    l = 9;
+    w = 12;
+    h = 2;
+
+    color("white")
+        translate([-1, 0 , h / 2])
+            rotate([90, 0, 90])
+                hull() {
+                    linear_extrude(l - 2)
+                        square([w, h], center = true);
+
+                    linear_extrude(l)
+                        square([w - 1, h - 1], center = true);
+                }
+}
+
 module usb_Ax1(cutout = false) { //! Draw USB type A single socket
     usb_A(h = 6.5, v_flange_l = 4.5, bar = 0, cutout = cutout);
 }
@@ -107,7 +124,7 @@ module usb_A(h, v_flange_l, bar, cutout) {
             rotate([90, 0, 90])
                 rounded_rectangle([w + 2 * v_flange_h + 2 * panel_clearance,
                                    h + 2 * h_flange_h + 2 * panel_clearance, 100], r = cnc_bit_r, center = false);
-        else
+        else {
             color("silver") rotate([0, 90, 0]) {
                 linear_extrude(l, center = true)
                     difference() {
@@ -130,7 +147,72 @@ module usb_A(h, v_flange_l, bar, cutout) {
                         }
                         square([h - eps, w - eps], center = true);
                     }
-           }
+                }
+
+                for(z = bar ?  [-1, 1] : [0])
+                    translate_z(z * (bar / 2 + socket_h / 2))
+                        usb_A_tongue();
+            }
+}
+
+module molex_usb_Ax2(cutout) { //! Draw Molex USB connector suitable for perf board
+    w = 15.9;
+    h = 16.6;
+    l = 17;
+    pin_l = 2.8;
+    clearance = 0.2;
+    tag_l = 4.4;
+    tag_r = 0.5;
+    tag_w = 1.5;
+    tag_t = 0.3;
+    tag_p = 5.65;
+
+    if(cutout)
+        translate([0, -w / 2 - clearance, -clearance])
+            cube([100, w + 2 * clearance, h + 2 * clearance]);
+    else {
+        color(silver)
+            translate([-l / 2, 0])
+                rotate([90, 0, 90])
+                    translate([-w / 2, 0]) {
+                        cube([w, h, l - 9]);
+
+                        linear_extrude(l)
+                            difference() {
+                                square([w, h]);
+
+                                for(z = [-1, 1])
+                                    translate([w / 2, h / 2 + z * 8.5 / 2])
+                                        square([12.6, 5.08], center = true);
+                            }
+                    }
+
+        for(z = [-1, 1])
+            translate_z(h / 2 + z * 8.5 / 2)
+                usb_A_tongue();
+
+        color(silver)
+            rotate(-90) {
+                for(x = [-1.5 : 1 : 1.5], y = [0.5 : 1 : 1.5])
+                    translate([inch(x / 10), -l / 2 + inch(y / 10)])
+                        hull() {
+                            cube([0.6, 0.3, 2 * pin_l - 2], center = true);
+
+                            cube([0.4, 0.3, 2 * pin_l], center = true);
+                        }
+
+                for(side = [-1, 1], end = [0, 1])
+                    translate([side * w / 2, -l / 2 + tag_w / 2 + end * tag_p])
+                        rotate(-side * 90)
+                            hull() {
+                                translate([0, tag_l - tag_r])
+                                    cylinder(r = tag_r, h = tag_t);
+
+                                translate([-tag_w / 2, 0])
+                                    cube([tag_w, eps, tag_t]);
+                            }
+            }
+    }
 }
 
 module rj45(cutout = false) { //! Draw RJ45 Ethernet connector
@@ -827,6 +909,7 @@ module pcb_component(comp, cutouts = false, angle = undef) { //! Draw pcb compon
         if(show(comp, "led")) led(comp[4], comp[5], 2.6);
         if(show(comp, "pdip")) pdip(comp[4], comp[5], param(6, false), param(7, inch(0.3)));
         if(show(comp, "ax_res")) ax_res(comp[4], comp[5], param(6, 5), param(7, 0));
+        if(show(comp, "molex_usb_Ax2")) molex_usb_Ax2(cutouts);
     }
 }
 

vitamins/pcbs.scad

@@ -352,7 +352,7 @@ TP4056 = ["TP4056", "TP4056 Li-lon Battery charger module", 26.2, 17.5, 1.0, 0,
     ]];
 
 WD2002SJ = ["WD2002SJ", "WD2002SJ Buck Boost DC-DC converter", 78, 47, 1.6, 0, 3.2, 0, "#2140BE", false, [[4,4], [-4,4], [-4,-4], [4,-4]],
-    [ [ 39,   -20.5,  0, "-chip", 63, 41, 4, "silver"],
+    [ [ 39,   -20.5,  0, "-chip", 63, 41, 3.4, "silver"],
       [ -4,    12,    0, "gterm508", 2, [], "blue"],
       [  4,    12,  180, "gterm508", 2, [], "blue"],
       [ -25.5, 3.1,   0, "trimpot10", true],