3030 Extruded Aluminum Miter Box & Jig Setup

thingiverse

I'm building a Hypercube Evolution frame, but first I needed to cut the 3030s, so I came up with this setup. To achieve precision, measure once and hold it in place at 51mm wide using a C-clamp on a 51mm wide board. The holders are then placed on the 3030s, secured with a little glue to ensure they're square with the miter, before being screwed down tightly.