8 sponge_l = 45; // original size is 85 + 5;
18 cylinder(r = v_tube_d/2 + 2*wall, h = clip_h, $fn = 128);
19 translate([0, 0, -eps])
20 cylinder(r = v_tube_d/2 + wall, h = clip_h+2*eps);
21 translate([-infty-v_tube_d/5, -infty/2, -eps])
24 for (angle = [-1.5*72:72:1.5*72]) rotate([0, 0, angle])
25 translate([v_tube_d/2 + wall, 0, 0])
26 cylinder(r = wall, h = clip_h);
29 module perf_wall(w, h, d, hx, hy, dx, dy, side) {
31 translate([-w/2, -h/2, -d/2])
33 for (y = [0:1:1 + h/(hy+dy)])
34 for (y1 = [-1,1]) scale([1, y1, 1])
35 for (x1 = [-1,1]) scale([x1, 1, 1]) {
36 for (x = [0:1:1 + w/(hx+dx)]) {
37 translate([x*(hx+dx), y*(hy+dy), -d/2-eps])
39 cylinder(r = hx/2, h = d + 2*eps, $fn = 4);
41 for (x = [0.5:1:1 + w/(hx+dx)]) {
42 translate([x*(hx+dx), (y+0.5)*(hy+dy), -d/2-eps])
44 cylinder(r = hx/2, h = d + 2*eps, $fn = 4);
48 for (x = [-1, 1]) scale ([x, 1, 1])
49 translate([w/2-side, -h/2, -d/2])
51 for (y = [-1, 1]) scale ([1, y, 1])
52 translate([-w/2, h/2-side, -d/2])
57 for (x = [0, sponge_h + wall]) translate([x + wall/2, 0, (sponge_l+wall)/2])
59 perf_wall(h = sponge_w + 2*wall, w = sponge_l + wall, d = wall,
60 hx = 20, hy = 10, dx = 2, dy = 3, side=2);
62 for (y = [-1, 1]) scale ([1, y, 1])
63 translate([sponge_h/2+wall, sponge_w/2+wall/2, (sponge_l+wall)/2])
65 perf_wall(w = sponge_h + 2*wall, h = sponge_l + wall, d = wall,
66 hy = 20, hx = 10, dx = 3, dy = 2, side=2);
68 for (y = [-sponge_w/4, 0, sponge_w/4])
69 translate ([0, y, sponge_l])
70 cube([sponge_h + 2*wall, wall, wall]);
73 module side_handlers() {
74 for (y = [-1, 1]) scale ([1, y, 1])
76 translate([0, sponge_w/2, 0])
77 cube([wall, wall, clip_h]);
78 translate([-v_tube_d/2-x_off, v_tube_d/2+wall, 0])
79 cube([wall, wall, clip_h]);
84 translate([-v_tube_d/2-x_off, 0, 0])