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
10 between
= 14.732; // 0.580 inches
11 screw_radius
= 2.286/2; // 0.090 inches
12 screw_length
= 8; // i eyeballed this
13 translate([between
/2, 0, 0]) cylinder(h
= screw_length
, r
= screw_radius
);
14 translate([-between
/2, 0, 0]) cylinder(h
= screw_length
, r
= screw_radius
);}
16 module
caster_flange(){
17 // i eyeballed this too, it's (0.580/5) inches, times 2 to be stronger
19 width
= 20.32; // 0.800 inches
20 between
= 14.732; //0.580 inches
21 side_radius
= (width
- between
)/2;
23 cylinder(h
= height
, r
= between
/2);
24 translate([between
/2, 0, 0]) cylinder(h
= height
, r
= side_radius
);
25 translate([-between
/2, 0, 0]) cylinder(h
= height
, r
= side_radius
);}}
27 module
hexagon(size
, height
){
29 for (r
= [-60, 0, 60]) rotate([0,0,r
]) cube([boxWidth
, size
, height
], true);}
32 height
= 1.6; // from calipers
33 overall_width
= 20.32; // 0.800 inches
34 between
= 14.732; // 0.580 inches
35 short_side_nut
= 4.7; // from calipers
36 translate([between
/2, 0, height/2]) hexagon(4.7, height
);
37 translate([-between
/2, 0, height/2]) hexagon(4.7, height
);}
40 ziptie_width
= 4.7625; // 3/16 inch
41 ziptie_height
= 3; // i'm guessing
42 standoff_radius
= 14.732; // 0.580 inches
43 translate([-standoff_radius
/2, -ziptie_width/2, 0])
44 cube([standoff_radius
, ziptie_width
, ziptie_height
]);}
46 module
caster_standoff(){
48 caster_radius
= 14.732/2;
49 caster_flange_height
= 2.9464 * 2;
52 cylinder(h
= height
, r
= caster_radius
);
54 translate([0, 0, -.1]) scale([1, 1, 1.1]) ball_screws();
55 translate([0, 0, caster_flange_height
]) nuts();
56 translate([0, 0, height
* 3 / 4]) scale([1.1, 1, 1]) ziptie();
57 rotate([0, 0, 90]) translate([0, 0, height
* 1 / 2]) scale([1.1, 1, 1])