pattern of lad-pad.

diamond.scad

module romb() {
scale ([1, 1, 1]) rotate ([20, 0, 0]) cube([5, 3, 1], center=true);
}

//diamond_rombs.scad
module diamond(){
rotate ([0, 0, -45]) {
        for(i= [0 : 3]){
              union(){  translate ([0, i - (i * 0.3), 0]) scale ([1, 1.2, 0.6]) romb();}
  }
 }
}

module row_d(){
for (x=[0: 10]) {translate([x+(x * 0.7), 0, 0]) diamond();
  }
 }
row_d();