19 linextr(-base_th, -base_th + 0.01)
20 square(base, center=true);
21 linextr(-base_th, 0) {
22 square(base - 2 * base_th * base_slope * [1,1], center=true);
24 mirror([m,0,0]) LoopPlan();
31 translate([hoop_inner_dia/2 + hoop_th/2, 0])
32 circle(r = hoop_th/2);
42 linextr(-0.1, hoop_inner_dia*2)
43 square(hoop_inner_dia*4, center=true);