Rocket Engine BT-20 Tube Cutter

I have been creating model rockets with things around the house. (Pringles cans, Paper towel tubes, etc.) However, I've found it to be more cost effective to buy a pack of BT-20 tubes and cut them down to use for my A, B, & C motor mounts. I needed a way to cut a 18" tube into six motor mount tubes. (I use the thin metal strips out of used windshield wiper blades to make the engine clips. See my stamp tool here: https://www.thingiverse.com/thing:5024923)

This jig allows you to cut the rig