--- /dev/null
+/* Arcade Button Bar Helper
+ * Copyright (C) 2017 Clinton Ebadi <clinton@unknownlamer.org>
+ *
+ * This program 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.
+ *
+ * This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+// todo
+// - integrate good key cap library for example keys
+
+
+$fs = 0.1;
+
+cols = 6;
+rows = 1;
+
+bolt_depth = 12;
+screw_d = 3.5;
+
+wall = 4;
+bottom = 2;
+border = 3;
+
+nutcatch_size = 6;
+
+
+// switch depth + pin depth + clearance + room for mcu and wires
+case_depth = 3.5 + 3.3 + 3.2 + 3;
+
+echo ("case_depth = ", case_depth);
+
+button_size = 20;
+
+// derived
+box_size_x = cols*button_size+border*2;
+box_size_y = rows*button_size+border*2;
+
+
+module supports () {
+ for (x = [ 0, ceil (cols/2)*button_size+border*2 - nutcatch_size, box_size_x - nutcatch_size], y = [ 0, box_size_y - nutcatch_size]) {
+ translate ([x, y, 0]) {
+ children ();
+ }
+ }
+}
+
+module plate_hole () {
+ translate ([nutcatch_size/2, nutcatch_size/2, 0])
+ circle (d = screw_d, $fs = 0.1);
+}
+
+module nutcatch (screw_only=false) {
+ translate ([nutcatch_size/2, nutcatch_size/2, (case_depth+wall)/2]) {
+ difference () {
+ if (!screw_only) cube ([nutcatch_size, nutcatch_size, case_depth+wall], center=true);
+
+ translate ([0, 0, (case_depth+wall-bolt_depth)/2+0.01]) cylinder (d = screw_d - 1, h = bolt_depth, center=true, $fs=0.1);
+ }
+ }
+}
+
+module cherrymx_slot () {
+ width = 14;
+ square (width, center=true);
+ // y=width-2 is supposed to be correct, but seemed better this way
+ square ([width+2, width-3], center=true);
+}
+
+
+module switch_plate_base (bevel=2, holes=true) {
+ difference () {
+ offset (r=bevel) offset (r=-bevel) square ([box_size_x, box_size_y]);
+ translate ([border, border, 0]) {
+ for (i = [ 0 : cols-1 ]) {
+ for (j = [ 0 : rows-1 ]) {
+ translate ([i*button_size + button_size/2, button_size/2 + j*button_size, 0])
+ children ();
+ }
+ }
+ }
+ if (holes) {
+ supports () plate_hole ();
+ }
+ }
+}
+
+
+
+
+module switch_plate (thickness=1.5, bevel=2) {
+ linear_extrude (height=thickness) {
+ switch_plate_base (cols=cols, rows=rows, button_size=button_size, bevel=bevel)
+ {
+ children ();
+ }
+ }
+}
+
+
+
+module case (depth=case_depth, wall=wall) {
+ module usb_port (w = 13, h = bottom + 6) {
+ translate ([wall, box_size_y/2-w/2, bottom]) rotate ([0, 0, 90]) cube ([w, wall+0.01, h]);
+
+ }
+
+ module mcu_holder () {
+ barrier_depth = 3;
+ barrier_x = 35.0 + nutcatch_size;
+ barrier_width = 2;
+
+ translate ([barrier_x, 0, bottom]) cube ([barrier_width, box_size_y, barrier_depth]);
+ }
+
+ difference () {
+ linear_extrude (height=depth+bottom) switch_plate_base (cols=cols, rows=rows, holes=false);
+ supports () nutcatch (screw_only=true);
+
+ difference () {
+ translate ([wall/2, wall/2, bottom+0.01])
+ linear_extrude (height=depth) resize ([box_size_x-wall, box_size_y-wall, 1]) switch_plate_base (cols=cols, rows=rows, holes=false);
+ supports () nutcatch ();
+ }
+ usb_port ();
+ }
+ mcu_holder ();
+}
+
+module keys () {
+ $fs = 0.1;
+ $fa = 0.1;
+ keys = [ "", "", "", "" ,"",];
+
+ for (i = [ 0 : len (keys) ])
+ translate ([i * button_size + border, border, 0])
+ oneAlphanumericKey(keys[i], xOffset=-38.5, font="fontawesome");
+
+ translate ([(cols-1) * button_size + border, (rows-1) * button_size + border, 0]) oneAlphanumericKey ("⏎", xOffset=-38.5, font="DejaVu Sans");
+}
+
+module test_fit () {
+ color ("OliveDrab") switch_plate () { cherrymx_slot (); }
+ color (alpha=0.6) translate ([45, 10, 10]) keys ();
+ translate ([0, 0, -30]) case ();
+
+}
+
+module print () {
+ switch_plate () { cherrymx_slot (); }
+ translate ([0, box_size_y+5, 0]) case ();
+}
+
+print ();
+//test_fit ();
+
+/* module keys () { */
+/* $fs = 0.1; */
+/* $fa = 0.1; */
+/* keys = [ "", "", "", "", "" ]; */
+/* for (j = [ 0 : rows-1 ]) { */
+/* for (i = [ 0 : cols-1 ]) { */
+/* index = i*(cols-1)+j; */
+/* if (index < len(keys)) { */
+/* echo (i, j, i*j, index); */
+/* translate ([i * button_size + border, j * button_size + border, 0]) */
+/* oneAlphanumericKey(keys[index], xOffset=-38.5, font="fontawesome"); */
+/* } */
+/* } */
+/* } */
+
+
+/* translate ([(cols-1) * button_size + border, (rows-1) * button_size + border, 0]) oneAlphanumericKey ("⏎", xOffset=-38.5, font="DejaVu Sans"); */
+/* } */