polyholes-test.scad

module polyhole(h, d) {
    n = max(round(2 * d),3);
    rotate([0,0,180])
        cylinder(h = h, r = (d / 2) / cos (180 / n), $fn = n);
}

module main() {
  difference() {
    linear_extrude(5) {
      hull(){
        rotate([0,0,-46.5])
          translate([5,2])
            square([0.001,168]);

        rotate([0,0,-43.5])
          translate([-5,2])
            square([0.001,168]);
      }
    }
    rotate([0,0,-45])
      for(i=[1:0.5:10])
	    translate([0,i*(i+6),0])polyhole(5,i);
  }
}

translate([10,10,0])main();