x-carve belt pulley
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$fn=64;
length = 38;
width = 17;
height = 13;
wall = 5;
screw = 5.5; // M5 screw
pulley_width = 10;
pulley_thickness = 3;
difference() {
body();
screw1();
screw2();
pulley_slots();
translate([length/1.5, 0, 0])
rotate([0,35,0])
translate([-length/2, 0, 0])
cube([length, width*1.2, height], center=true);
}
module screw1() {
translate([-width/2 -1, 0, 0])
rotate([0, -90, 0])
cylinder(wall*2, d = screw);
translate([-(width/2)+wall/1.75, 0, 0])
rotate([0, -90, 0])
cylinder((wall*2), d = screw*2);
}
module screw2() {
translate([-width/8, 0, -wall*2])
cylinder(wall*2, d = screw);
}
module pulley_slots() {
translate([wall, 0, -wall])
cube([pulley_thickness, pulley_width, wall*2], center=true);
translate([wall*2.5, 0, -wall])
cube([pulley_thickness, pulley_width, wall*2], center=true);
}
module body() {
difference() {
cube([length, width, height], center=true);
translate([wall/1.5, 0, wall-1.5])
cube([length, width - (wall), height], center=true);
}
}