//file mitre //JP Hare, 28th July 2021, version 4 //ca. 70 mins slot_width = 2.1; //main base difference () { cube([80,30,20]); //chanel translate ([-5,5,5]) cube([110,20.2,50]); //file slot translate ([50,-2,3]) cube([5,70,70]); //bolt hole I translate ([10,15,-2]) cylinder (h=20, r=2, $fn=90); //bolt hole II translate ([70,15,-2]) cylinder (h=20, r=2, $fn=90); }