11 antifoot_back = antifoot_depth + antifoot_height/antifoot_slope;
12 translate([-antifoot_front-antifoot_back, antifoot_width/2, 0])
14 translate([antifoot_front, antifoot_base, 0])
15 linear_extrude(height=antifoot_width)
16 polygon([[-antifoot_front, -antifoot_base],
17 [-antifoot_front, antifoot_height],
21 [antifoot_back, antifoot_height],
22 [antifoot_back, -antifoot_base]]);