Commit | Line | Data |
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a3f445db CE |
1 | // super simple feet for metal shelving |
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 super simple feet | |
7 | // for metal shelving. | |
8 | ||
20a24b61 CE |
9 | |
10 | // preview[view:east, tilt:top diagonal] | |
11 | ||
a3f445db CE |
12 | // Length of slot for shelving leg |
13 | slot_length = 32; | |
14 | // Thickness of slot for shelving leg | |
15 | slot_thickness = 1.8; | |
16 | ||
17 | // Thickness of wall around slot | |
18 | wall_thickness = 3; | |
19 | ||
20 | // Depth of the base foot | |
21 | base_depth = 4; | |
22 | // Depth of the slot and walls around the length | |
23 | slot_depth = 20; | |
24 | // Offset for leg slot into the base | |
25 | slot_offset = -1; | |
4c7c027a CE |
26 | // Enable/disable base |
27 | base_enabled = true; | |
a3f445db CE |
28 | |
29 | $fs = 0.1; | |
30 | ||
31 | foot (); | |
32 | ||
33 | module base () { | |
34 | side = slot_length + slot_thickness/2; | |
4c7c027a CE |
35 | if (base_enabled) { |
36 | offset (r = wall_thickness) polygon ([ [0, 0], [ side , 0], [0, side] ]); | |
37 | } else { | |
38 | walls (); | |
39 | } | |
a3f445db CE |
40 | } |
41 | ||
42 | module walls () { | |
43 | intersection () { | |
44 | offset (r = wall_thickness) { | |
45 | square ([slot_thickness, slot_length + slot_thickness/2]); | |
46 | square ([slot_length + slot_thickness/2, slot_thickness]); | |
47 | } | |
4c7c027a | 48 | if (base_enabled) { base (); } |
a3f445db CE |
49 | } |
50 | } | |
51 | ||
52 | module slot () { | |
53 | square ([slot_thickness, slot_length]); | |
54 | square ([slot_length, slot_thickness]); | |
55 | ||
56 | // tiny chamfer around bend | |
57 | x = 2; | |
58 | polygon ([ [0, 0], [ slot_thickness*2+x/2, 0], [0, slot_thickness*2+x/2] ]); | |
59 | } | |
60 | ||
61 | ||
62 | module foot () { | |
63 | difference () { | |
64 | union () { | |
65 | linear_extrude (base_depth) base (); | |
66 | translate ([0, 0, base_depth+slot_offset]) linear_extrude (slot_depth+slot_offset) walls (); | |
67 | } | |
68 | translate ([0, 0, base_depth+slot_offset]) linear_extrude (slot_depth+slot_offset+0.1) slot (); | |
69 | } | |
70 | } |