//drilling jig
//JP Hare, 13th July 2021, version 1.1

//ca. x mins

//main base

difference () {
translate ([0,0,0])
cube([15,50,20]);
    
// 1 mmm slot
translate ([5,-1,5])
cube([2,44,25]);
    
//bolt hole
translate ([0,37,15])
rotate ([0,90,0,])
cylinder (h=50, r=2, $fn=90);
}

difference () {

translate ([15,30,0])
cube([15,20,20]);

//bolt hole (repeat)
translate ([0,37,15])
rotate ([0,90,0,])
cylinder (h=50, r=1.5, $fn=90);
}