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1.1 KiB

$fn = 180;
wheel_dia = 100;
wheel_width = 10;
wheel_height = 5;
tube_outer_dia = 16;
shaft_dia = 25;
shaft_length = 25;
wire_dia = 3.5;
delta = 0.01;
difference() {
union() {
difference() {
cylinder(d = wheel_dia,
h = wheel_height,
center = true);
cylinder(d = wheel_dia - 2*wheel_width,
h = wheel_height + delta,
center = true);
}
for(angle = [0, 90])
rotate([0, 0, angle])
cube([wheel_width, wheel_dia, wheel_height],
center = true);
translate([0, 0, -shaft_length/2 + wheel_height/2])
cylinder(d = shaft_dia, h=shaft_length, center = true);
}
translate([0, 0, -shaft_length/2 + wheel_height/2])
cylinder(d = tube_outer_dia,
h=shaft_length + delta,
center=true);
translate([0, 0, wheel_height/2])
for(angle=[0,90])
rotate([0,90, angle])
cylinder(d = wire_dia, h = wheel_dia + delta, center=true);
}