1 |
heatsink_xsize = 50; |
1 |
heatsink_xsize = 50; |
2 |
heatsink_ysize = 50; |
2 |
heatsink_ysize = 50; |
3 |
heatsink_zsize = 50; |
3 |
heatsink_zsize = 50; |
4 |
|
4 |
|
5 |
TEG_xsize = 30; |
5 |
TEG_xsize = 30; |
6 |
TEG_ysize = 30; |
6 |
TEG_ysize = 30; |
7 |
TEG_zsize = 5; |
7 |
TEG_zsize = 5; |
8 |
|
8 |
|
9 |
mount_hole = 3.5; |
9 |
mount_hole = 3.5; |
10 |
clearance = 0.175; |
10 |
clearance = 0.175; |
11 |
sealing_ring_width = 3; |
11 |
sealing_ring_width = 3; |
12 |
wall_thickness = 10; |
12 |
wall_thickness = 10; |
13 |
|
13 |
|
14 |
height = heatsink_zsize + wall_thickness; |
14 |
height = heatsink_zsize + wall_thickness; |
15 |
|
15 |
|
16 |
|
16 |
|
17 |
difference () { |
17 |
difference () { |
18 |
union (){ |
18 |
union (){ |
19 |
cube([heatsink_xsize+2*wall_thickness,heatsink_ysize+2*wall_thickness,heatsink_zsize+wall_thickness]); // overal plastic brick |
19 |
cube([heatsink_xsize+2*wall_thickness,heatsink_ysize+2*wall_thickness,heatsink_zsize+wall_thickness]); // overal plastic brick |
20 |
// cube([heatsink_xsize+2*wall_thickness,heatsink_ysize+2*wall_thickness,heatsink_zsize+wall_thickness]); // overal plastic brick |
20 |
// cube([heatsink_xsize+2*wall_thickness,heatsink_ysize+2*wall_thickness,heatsink_zsize+wall_thickness]); // overal plastic brick |
21 |
} |
21 |
} |
22 |
|
22 |
|
23 |
translate ([wall_thickness-clearance, wall_thickness-clearance, wall_thickness-clearance]) |
23 |
translate ([wall_thickness-clearance, wall_thickness-clearance, wall_thickness-clearance]) |
24 |
cube([heatsink_xsize+2*clearance, heatsink_ysize+2*clearance, heatsink_xsize+2*clearance]); // hollow for heat sink and heat storage liquid. |
24 |
cube([heatsink_xsize+2*clearance, heatsink_ysize+2*clearance, heatsink_xsize+2*clearance]); // hollow for heat sink and heat storage liquid. |
25 |
|
25 |
|
26 |
translate ([((heatsink_xsize+2*wall_thickness)-TEG_xsize)/2 - clearance, ((heatsink_ysize+2*wall_thickness)-TEG_ysize)/2 - clearance, 0]) |
26 |
translate ([((heatsink_xsize+2*wall_thickness)-TEG_xsize)/2 - clearance, ((heatsink_ysize+2*wall_thickness)-TEG_ysize)/2 - clearance, 0]) |
27 |
cube([TEG_xsize+2*clearance, TEG_ysize+2*clearance, wall_thickness]); // hollow for the thermoelectric generator |
27 |
cube([TEG_xsize+2*clearance, TEG_ysize+2*clearance, wall_thickness]); // hollow for the thermoelectric generator |
28 |
|
28 |
|
29 |
translate ([wall_thickness, wall_thickness, height-sealing_ring_width]) |
29 |
translate ([wall_thickness, wall_thickness, height-sealing_ring_width]) |
30 |
union () { |
30 |
union () { |
31 |
difference () { |
31 |
difference () { |
32 |
minkowski() { |
32 |
minkowski() { |
33 |
cube([heatsink_xsize-sealing_ring_width/2, heatsink_xsize-sealing_ring_width/2, 5]); // Rib for o-ring. |
33 |
cube([heatsink_xsize, heatsink_xsize, sealing_ring_width]); // Rib for o-ring. |
34 |
cylinder(r=wall_thickness/2,h=0.1); |
34 |
cylinder(r=wall_thickness/2,h=0.1); |
35 |
} |
35 |
} |
36 |
|
36 |
|
37 |
translate ([sealing_ring_width, sealing_ring_width, 0]) |
37 |
translate ([sealing_ring_width/2, sealing_ring_width/2, 0]) |
38 |
minkowski() { |
38 |
minkowski() { |
39 |
cube([heatsink_xsize+sealing_ring_width/2, heatsink_xsize+sealing_ring_width/2, 5]); // Rib for o-ring. |
39 |
cube([heatsink_xsize-sealing_ring_width, heatsink_ysize-sealing_ring_width, sealing_ring_width]); // Rib for o-ring. |
40 |
cylinder(r=wall_thickness/2,h=0.1); |
40 |
cylinder(r=wall_thickness/2,h=0.1); |
41 |
} |
41 |
} |
42 |
} |
42 |
} |
43 |
} |
43 |
} |
44 |
/* |
44 |
/* |
45 |
rotate([0,0,-45]) // hole for top part mounting nut |
45 |
rotate([0,0,-45]) // hole for top part mounting nut |
46 |
translate ([ 0, -y_size/3, thickness/3]) |
46 |
translate ([ 0, -y_size/3, thickness/3]) |
47 |
cube([6, 3, thickness], center = true); |
47 |
cube([6, 3, thickness], center = true); |
48 |
|
48 |
|
49 |
rotate([90,0,-45]) // hole for top part mounting screw. |
49 |
rotate([90,0,-45]) // hole for top part mounting screw. |
50 |
translate ([ 0, 1.8, 0]) |
50 |
translate ([ 0, 1.8, 0]) |
51 |
cylinder (h = thickness + rim_height, r= mount_hole/2, $fn=20); |
51 |
cylinder (h = thickness + rim_height, r= mount_hole/2, $fn=20); |
52 |
*/ |
52 |
*/ |
53 |
} |
53 |
} |
54 |
|
54 |
|
55 |
// Heat reservoir cover |
55 |
// Heat reservoir cover |
56 |
|
56 |
|
57 |
translate ([0, 0, 2*height]) |
57 |
translate ([0, 0, 2*height]) |
58 |
cube([heatsink_xsize+2*wall_thickness,heatsink_ysize+2*wall_thickness,wall_thickness]); |
58 |
cube([heatsink_xsize+2*wall_thickness,heatsink_ysize+2*wall_thickness,wall_thickness]); |
59 |
|
59 |
|