18 translate([-holedist-tabside, 0, 0])
19 cube([tabside*2+holedist, thick, tabunder+tabover]);
21 translate([-tonguewidth, 0, 0])
22 cube([tonguewidth, totaldepth, tonguethick+strapthick]);
23 for (y=[thick+0.1, totaldepth-ridgewidth-strapwidth])
24 translate([-tonguewidth-1, y, tonguethick])
25 cube([tonguewidth+2, strapwidth, strapthick+1]);