add wire-jig for cutting wires the right lengths

diff --git a/3d-printables/wire-jig.scad b/3d-printables/wire-jig.scad
new file mode 100644 (file)
index 0000000..dabde95
--- /dev/null
+++ b/3d-printables/wire-jig.scad
@@ -0,0 +1,41 @@
+// challenge-bot
+// GNU AGPLv3 (or later at your option)
+// project available at these locations:
+// https://gitorious.org/ozzloy/challenge-bot
+// https://github.com/waynegramlich/challenge-bot
+
+$fn = 20;
+
+wire_channel_width = 6;
+wire_channel_height = 6;
+
+wire_diameter_measured = 1.17;
+wire_diameter_fudge = 0.5;
+wire_diameter = wire_diameter_measured + wire_diameter_fudge;
+wire_radius = wire_diameter / 2;
+
+wire_lengths = [10, //strip wire this much
+                35, //short breadboard wire
+                63, //ground to ground
+                120, //arduino breadboard wire
+                180 //motor wire
+               ];
+
+module wire_channel_groove_2d(width, height, wire_radius) {
+  difference() {
+    square([width, height]);
+    translate([width / 2, height]) {
+      circle(r = wire_radius); } } }
+
+
+module wire_channel_groove(width, height, wire_radius, length){
+  rotate(a = 90, v = [1, 0, 0]){
+    linear_extrude(height = length){
+      wire_channel_groove_2d(width, height, wire_radius); } } }
+
+for(ii = [0:len(wire_lengths) - 1]) {
+  translate([wire_channel_width * ii, 0, 0]) {
+    wire_channel_groove(wire_channel_width,
+                        wire_channel_height,
+                        wire_radius,
+                        wire_lengths[ii]); } }