// -*- C -*-

holedist = 64;
tonguewidth = 10;
totaldepth = 26;
thick = 3;
tabover = 7;
tabunder = 20;

tabside = 7;

tonguethick = 4;
strapthick = 2;
strapwidth = 5;
ridgewidth = 2;

module Object(){
  translate([-holedist-tabside, 0, 0])
    cube([tabside*2+holedist, thick, tabunder+tabover]);
  difference(){
    translate([-tonguewidth, 0, 0])
      cube([tonguewidth, totaldepth, tonguethick+strapthick]);
    for (y=[thick+0.1, totaldepth-ridgewidth-strapwidth])
      translate([-tonguewidth-1, y, tonguethick])
	cube([tonguewidth+2, strapwidth, strapthick+1]);
  }
}

Object();