21 translate([-holedist-tabside, 0, 0])
22 cube([tabside*2+holedist, thick, tabunder+tabover]);
24 translate([x, -1, tabunder])
26 cylinder(r= holedia/2+0.5, h=thick+2, $fn=20);
29 translate([-tonguewidth, 0, 0])
30 cube([tonguewidth, totaldepth, tonguethick+strapthick]);
31 for (y=[thick+0.1, totaldepth-ridgewidth-strapwidth])
32 translate([-tonguewidth-1, y, tonguethick])
33 cube([tonguewidth+2, strapwidth, strapthick+1]);