Now, before this goes any further, please do *NOT* tell me to "go buy a chop saw" or "buy a used band saw" or whatever. I'm talking about a miter saw ONLY, OK?
There are supposed to be two main issues with doing this:
First, it overloads the motor. But I don't think this would happen, if you just use very light pressure and take your time and go slow.
Second, the shavings/sparks can damage the fence and/or the motor mechanism (bearings). There may be some truth here. The fence shouldn't be a problem, and I can always cover it with something. Particles? Some suggest removing the vacuum. How about attaching the nozzle of my shop vac just behind the blade and letting it catch them? Or maybe putting a big magnet there, perhaps.
This isn't something I'll be doing often. Maybe once a month I'll make 3 or 4 cuts, at the most, no more. As I said, 99% is going to be cutting 45 degree ends in 1/8" X 1" angle, so I can join them together to make a square corner. That's it.
I use an abrasive blade in my circular saw for straight cuts, but it's hard to cut accurate angles with it. I also have a Porter-Cable Tiger sawzall, I don't think that would work well for this kind of cutting, although I've never tried it.
Please give me a tip here, especially if you've actually done it, and aren't just repeating what you've read or heard. And PLEASE don't tell me to "go buy a chop saw"!!!
Thanks, Ron M.