Seriously, this is basically the worst thing you could ever try and make. If you have nothing to do and want to waste some perfectly good hot-glue, then be my guest, make this aluminum can/sheet metal “saw”. Come on, did you see the outcome of the cut he did? That wasn’t even close to straight. I could probably break the piece of wood better, ok, maybe not, but my point stands. This is a complete waste of time. Do not try it at home. Ever. I will think much less of you if you did.