use ; $fn = 100; M3HoleDiam = 3.4; MountSize = 40; BodyWidth = 55; translate([BodyWidth+5, 0, 0]) mirror([180, 0, 0]) difference() { MainBody(); M3MountHoles(); xcenter = 49; ycenter = MountSize/2 - 10; translate([xcenter, ycenter, -5]) #BottomZRodHoles(); YRodHoles(); // M3 Hole for role translate([60/2, 45, (50/2) - 5]) rotate([0, 0, -90]) #M3Hole(6); }