I've found that a thin cutoff wheel on an angle grinder works a lot better than a hacksaw on thin wall tubing, and doesn't compress the tubing or work harden it. Just be careful- - - -cutoff wheels work a lot quicker on fingers than they do on metal!
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!