So, I decided to try my hand at making one of those open air frames I have seen around. I found a place that sells 1" square aluminium tubing and plastic connectors to make what I want.

My question is how do I cut the dang stuff. I have tried a hack saw, which works but it is hard to get clean square cuts. I have also tried a metal cutting wheel, but it left too many metal burrs to clean up afterwards. I was thinking maybe a band saw with a jig might work well, but I don't have one. Any tips from people who have gone through this, preferably without having to buy expensive shop equipment?