Commit | Line | Data |
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a8b3811a CE |
1 | // Simple button cell battery holder |
2 | // Created 2017 Clinton Ebadi <clinton@unknownlamer.org> | |
3 | ||
4 | // Released under the https://wiki.creativecommons.org/wiki/CC0 | |
5 | // To the extent possible under law, Clinton Ebadi has waived all | |
6 | // copyright and related or neighboring rights to simple button cell | |
7 | // battery holder. | |
8 | ||
9 | // Defaults have no tolerance, should be printed using flexible | |
10 | // filament for a snug fit | |
11 | ||
12 | module holder (battery_d = 20, battery_h = 3.2, case_wall = 1.7, slot_undersize = 0.4, wire_d = 1.2, cover_pct = 0.4) { | |
13 | battery_h = battery_h - slot_undersize; | |
14 | ||
15 | case_d = battery_d + case_wall*2; | |
16 | case_h = battery_h + case_wall*2; | |
17 | ||
18 | %cylinder (d= battery_d, h = battery_h, center = true); | |
19 | ||
20 | difference () { | |
21 | cylinder (d = case_d, h = case_h, center = true); | |
22 | cylinder (d= battery_d, h = battery_h, center = true); | |
23 | ||
24 | // only cover cover_pct% | |
25 | translate ([-case_d/2 + case_d*cover_pct, -case_d/2, -case_h/2 - 0.01]) cube ([case_d, case_d, case_h + 0.02]); | |
26 | ||
27 | // slots for wires | |
28 | hook_distance = -case_d/2 + case_d*cover_pct/2; // fixme: shitty name | |
29 | for (z = [-battery_h/2, battery_h/2]) { | |
a143155b CE |
30 | #translate ([-case_d/2 - 0.01, 0, z]) rotate ([0, 90, 0]) cylinder (h = case_d, d = wire_d); |
31 | //#translate ([-case_d/2 - 0.01, 0, z]) rotate ([0, 90, 0]) cylinder (h = case_d * cover_pct/2, d = wire_d); | |
a8b3811a CE |
32 | } |
33 | ||
34 | // hole to bend wire up to hold in place | |
56f7db3c | 35 | translate ([hook_distance, 0, 0]) cylinder (h = case_h + 1, d = wire_d, center = true); |
a8b3811a CE |
36 | } |
37 | } | |
38 | ||
56f7db3c | 39 | holder ($fs = 0.1, $fa = 1, slot_undersize = 0.4); |