2 bearing_624_double = [13, 10, 4, 0];
3 // this one has roughly same diameter as pulley, makes belt parallel so its prettier
4 bearing_623_double = [10, 8, 3, 0];
6 idler_bearing = bearing_624_double;
9 m4_nut_diameter_horizontal = 8.15;
11 width_over_thickness = 2.2;
13 single_wall_width = width_over_thickness * layer_height;
14 idler_width = (idler_bearing[1] > 7 ? idler_bearing[1] : 7) + 2.5 * idler_bearing[3] ;
23 translate([0,-5,0]) cube([30,10,16]);
24 translate([30,-10,0]) cube([20,20,16]);
25 translate([30,5,0]) cylinder(r=5,h=16,$fn=16);
26 translate([30,-5,0]) cylinder(r=5,h=16,$fn=16);
29 #translate([43,11/2,8]) rotate([90,0,0]) {
31 translate([0,0,-6]) cylinder(r=2.1,h=25);
34 #translate([9,-7,-5/2+8]) cube([15,16,5]);
35 #translate([3,-4,-7.3/2+8]) cube([4,16,7.3]);
36 #translate([-1,0,16/2]) rotate([0,90,0]) cylinder(r=2,h=20,$fn=16);