Transfer punched the corners of the holes to be cut out. Drilled the corners out with a 3/16 drill bit to try to keep corners from cracking.
Screwed up a couple of brand new bi metal jig saw blades until I clamped it to the workbench. I had to weld up a couple holes that were used previously to line up the blanks with the jig.
Scribed the outer lines between the 3/16 corner holes, then trimmed them down with a coarse bastard file. That little square file really cuts fast.
Screwed up a couple of brand new bi metal jig saw blades until I clamped it to the workbench. I had to weld up a couple holes that were used previously to line up the blanks with the jig.
Scribed the outer lines between the 3/16 corner holes, then trimmed them down with a coarse bastard file. That little square file really cuts fast.