On 22 Dec 2004 07:50:02 -0800, "Ron M."
wrote:

I want to put an abrasive metal-cutting wheel on a miter saw, to cut
mild steel angle with. Most of this will be 3/32" or 1/8" 1-inch angle.
Some say, "sure, no problem!" while others say, "the horror, the
horror..." The purpose is to cut a few pieces for some welding
projects. For example, cutting some angle steel at 45 degrees to make a
table top.

Now, before this goes any further, please do *NOT* tell me to "go buy a
chop saw"

how about go rent a chopsaw for a day?



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.


abrasive wheels for steel are designed to be used with brisk pressure.
light pressure and going slow will overheat the metal and wear the
wheel quickly.



Second, the shavings/sparks can damage the fence and/or the motor
mechanism (bearings). There may be some truth here.


yep.



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?

dust collection for miter saws is difficult at best and a black art
most of the time....




Or maybe putting a
big magnet there, perhaps.

it's more than the metal shavings. it's also the grit from the blade.
together they'll quickly trash the turntable bearings, the chop arm
bearings and the motor bearings on your aluminum miter saw. if the saw
is a throwaway, go for it. if you need to make good cuts in wood with
that saw, don't do it.





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.

it'll work better than you think.




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"!!!

look, dude, the correct answer to your question is go buy a chop saw.
but don't listen to me, first go trash your miter saw, then go buy a
chop saw *and* a miter saw. and I'll say "I told you so" in
advance....








Thanks,
Ron M.