// https://github.com/josefprusa/Prusa3/blob/master/box_frame/x-carriage.scad
// as an example of how to code in scad
+scale=10;
+
deck_dimensions = [8, 8, 3/16];
-module deck() {
- cube(deck_dimensions);
-}
-
-module wheel_mount() {
- difference() {
- cube([1.5, 2.1, 3/16]);
- // motor shaft and collar hole
- translate([0.5, 0.938, -1/16]) {
- cylinder(h = 5/16, r = 0.362/2, $fn = 100);
- }
- // nubbin hole
- translate([0.5 + 0.875 - 0.425, 0.938, -1/16]) {
- cylinder(h = 5/16, r = 0.145/2, $fn = 100);
- }
- // mounting screw hole
- translate([0.5 + 1.213 - 0.425, 0.938 - 0.687/2, -1/16]) {
- cylinder(h = 5/16, r = 0.114/2, $fn = 100);
- }
- translate([0.5 + 1.213 - 0.425, 0.938 + 0.687/2, -1/16]) {
- cylinder(h = 5/16, r = 0.114/2, $fn = 100);
- }
- }
-}
-
-color("blue") deck();
+module deck(scale){
+ cube(deck_dimensions * scale);}
+
+module collar_hole(scale){
+ cylinder(h = 5/16 * scale, r = 0.362/2 * scale, $fn = 100);}
+
+module nubin_hole(scale){
+ cylinder(h = 5/16 * scale, r = 0.145/2 * scale, $fn = 100);}
+
+module mounting_screw_hole(scale){
+ cylinder(h = 5/16 * scale, r = 0.114/2 * scale, $fn = 100);}
+
+module wheel_mount(scale){
+ 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){
+ nubin_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);}}}
+
+color("blue") deck(scale);
rotate([90, 0, 0]) translate([1.5, -2, -(3/16)]) wheel_mount();
rotate([90, 0, 0]) translate([1.5, -2, -8]) wheel_mount();