71abed8c |
1 | // challenge-bot |
2 | // GNU AGPLv3 (or later at your option) |
3 | // project available at these locations: |
4 | // https://gitorious.org/ozzloy/challenge-bot |
5 | // https://github.com/waynegramlich/challenge-bot |
6 | |
7 | $fn = 60; |
8 | |
9 | // from schematic http://goo.gl/96RKol |
10 | collar_radius = 9.2 / 2; |
11 | nubbin_radius = 4.48 / 2; |
12 | screw_radius = 2.9 / 2 + 0.1; // a little bigger so screws fit through |
13 | |
14 | motor_height = 22.23; |
15 | |
16 | // http://freespace.virgin.net/matt.waite/resource/handy/screwsize.htm |
17 | _6_radius = 3.5 / 2; |
18 | |
19 | // measurements we made up: |
20 | mount_total_x = 38; |
21 | mount_total_y = mount_total_x; |
22 | mount_total_z = 3.175; // 3/16 in mm |
23 | |
24 | module motor_holes(){ |
25 | collar_x_offset = 10.8; |
26 | nubbin_x_offset = 22.23; |
27 | // actual motor screw holes are 0.2 further than spec says |
28 | screw_x_offset = 30.81 + 0.2; |
29 | screw_y_offset = 17.44 / 2; |
30 | |
31 | translate([collar_x_offset, 0, 0]){ |
32 | cylinder(r = collar_radius, h = mount_total_z + 0.1);} |
33 | translate([nubbin_x_offset, 0, 0]){ |
34 | cylinder(r = nubbin_radius, h = mount_total_z + 0.1);} |
35 | translate([screw_x_offset, 0, 0]){ |
36 | translate([0, screw_y_offset, 0]){ |
37 | cylinder(r = screw_radius, h = mount_total_z + 0.1);} |
38 | translate([0, -screw_y_offset, 0]){ |
39 | cylinder(r = screw_radius, h = mount_total_z + 0.1);}}} |
40 | |
41 | module bracket_holes(){ |
42 | translate([6 + _6_radius, 0, 0]) |
43 | cylinder(r = _6_radius, h = mount_total_z + 0.1); |
44 | translate([mount_total_x - 6 - _6_radius, 0, 0]) |
45 | cylinder(r = _6_radius, h = mount_total_z + 0.1);} |
46 | |
47 | module motor_mount(){ |
48 | difference(){ |
49 | cube([mount_total_x, mount_total_y, mount_total_z]); |
50 | translate([0, 6.2, -0.05]){ |
51 | bracket_holes();} |
52 | translate([0, mount_total_y - motor_height / 2 - 3, -0.05]){ |
53 | motor_holes();}}} |
54 | |
55 | motor_mount(); |