1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
|
module prism(l, w, h) {
polyhedron(
points=[
[0,0,h], // 0 front top corner
[0,0,0], [w,0,0], // 1, 2 front left & right bottom corners
[0,l,h], // 3 back top corner
[0,l,0], [w,l,0] // 4, 5 back left & right bottom corners
],
faces=[ // points for all faces must be ordered clockwise when looking in
[0,2,1], // top face
[3,4,5], // base face
[0,1,4,3], // h face
[1,2,5,4], // w face
[0,3,5,2], // hypotenuse face
]
);
}
baseThickness = 3;
baseHeight = 40;
baseWidth = 80;
gapWidth = 30;
clampDepth = 15;
clampHeight = 5;
threadDiameter = 7;
threadTubeOuterDiameter = threadDiameter+baseThickness*2;
difference() {
union() {
cube([baseThickness, baseWidth, baseHeight]);
translate([-clampDepth, 0, 0])
cube([clampDepth, baseWidth, baseThickness]);
translate([-clampDepth, 0, baseThickness])
prism(baseWidth, clampDepth, clampHeight);
translate([0, (baseWidth - threadTubeOuterDiameter)/2, 0])
cube([threadTubeOuterDiameter/2, threadTubeOuterDiameter, baseHeight]);
translate([threadTubeOuterDiameter/2, baseWidth/2, 0])
cylinder(r = threadTubeOuterDiameter/2, h = baseHeight);
}
// thread hole
translate([threadTubeOuterDiameter/2, baseWidth/2, 0])
cylinder(r = threadDiameter/2, h = baseHeight);
// clamp gap
translate([-clampDepth, (baseWidth-gapWidth)/2, 0])
cube([clampDepth, gapWidth, clampHeight+baseThickness]);
}
|