add cleaned up dobervich's mounting bracket drill jig

[challenge-bot] / schematic-3d-printable.scad

diff --git a/schematic-3d-printable.scad b/schematic-3d-printable.scad
index 60380e6f0aacea3317ec42ccd282ec54ebd1a757..b78304afea86cb19e80013d699001acf77cd5988 100644 (file)
--- a/schematic-3d-printable.scad
+++ b/schematic-3d-printable.scad
@@ -1,4 +1,4 @@
-// challenge-bot phase-2
+// challenge-bot
 // GNU AGPLv3 (or later at your option)
 // project available at these locations:
 // https://gitorious.org/ozzloy/challenge-bot
@@ -10,42 +10,66 @@
 
 scale=10;
 
-deck_z = 3/16;
-deck_x = 8;
-deck_y = 8;
-deck_dimensions = [deck_x, deck_y, deck_z];
+deck_width = 8;
+deck_length = 8;
+deck_depth = 3/16;
+deck_dimensions = [deck_width, deck_length, deck_depth];
 
 module deck(scale){
   cube(deck_dimensions * scale, center = true);}
 
 module collar_hole(scale){
-  cylinder(h = 5/16 * scale, r = 0.362/2 * scale, $fn = 100);}
+  cylinder(h = 5/16 * scale, r = 0.362/2 * scale);}
 
 module nubbin_hole(scale){
-  cylinder(h = 5/16 * scale, r = 0.145/2 * scale, $fn = 100);}
+  cylinder(h = 5/16 * scale, r = 0.145/2 * scale);}
 
 module mounting_screw_hole(scale){
-  cylinder(h = 5/16 * scale, r = 0.114/2 * scale, $fn = 100);}
+  cylinder(h = 5/16 * scale, r = 0.114/2 * scale);}
+
+module wheel_mount_reinforcement(scale){
+  diagonal = sqrt(deck_depth * deck_depth + deck_depth * deck_depth);
+  difference(){
+    cube([deck_depth * 2, deck_depth * 2, deck_depth * 2] * scale);
+    translate([-(diagonal - deck_depth) / 2, 0, 0] * scale)
+      rotate([45, 0, 0])
+        translate([0, -(diagonal * 1.1 - deck_depth) / 2, 0])
+          cube([diagonal * 2, diagonal * 2 * 1.1, deck_depth * 2] * scale);}}
+
+module wheel_motor_holes(scale){
+  translate([0.5, 0.938, -1/16] * scale) {
+    collar_hole(scale);}
+  translate([0.5 + 0.875 - 0.425, 0.938, -1/16] * scale){
+    nubbin_hole(scale);}
+  translate([0.5 + 1.213 - 0.425, 0.938 - 0.687/2, -1/16] * scale){
+    mounting_screw_hole(scale);}
+  translate([0.5 + 1.213 - 0.425, 0.938 + 0.687/2, -1/16] * scale){
+    mounting_screw_hole(scale);}}
 
 module wheel_mount(scale){
+  width = 1.5;
+  length = 2;
+  depth = deck_depth;
+
   difference(){
-    cube([1.5, 2, 3/16] * scale);
-    // motor shaft collar hole
-    translate([0.5, 0.938, -1/16] * scale) {
-      collar_hole(scale);}
-    // nubbin hole
-    translate([0.5 + 0.875 - 0.425, 0.938, -1/16] * scale){
-      nubbin_hole(scale);}
-    // mounting screw hole
-    translate([0.5 + 1.213 - 0.425, 0.938 - 0.687/2, -1/16] * scale){
-      mounting_screw_hole(scale);}
-    translate([0.5 + 1.213 - 0.425, 0.938 + 0.687/2, -1/16] * scale){
-      mounting_screw_hole(scale);}}}
-
-translate([0, 0, (3/16)/2 * scale]){
-color("blue") deck(scale);
-rotate([90, 0, 0])
-    translate([1.5, (deck_z)/2, -4] * scale) wheel_mount(scale);
-rotate([90, 0, 0])
-    translate([1.5, (deck_z)/2, 4 - deck_z] * scale) wheel_mount(scale);
-}
+    cube([width, length, depth] * scale);
+    wheel_motor_holes(scale);}
+  translate([2 * depth, 2 * depth, depth] * scale)
+    rotate([0, 0, 180])
+      wheel_mount_reinforcement(scale);
+  translate([width, 2 * depth, depth] * scale)
+    rotate([0, 0, 180])
+      wheel_mount_reinforcement(scale);}
+
+module robot(scale){
+  translate([0, 0, (deck_depth)/2 * scale]){
+    color("blue") deck(scale);
+    translate([1.5, 4, (deck_depth)/2] * scale)
+      rotate([90, 0, 0])
+        wheel_mount(scale);
+    mirror([0, 1, 0])
+      translate([1.5, 4, (deck_depth)/2] * scale)
+        rotate([90, 0, 0])
+          wheel_mount(scale);}}
+
+robot(scale);