I was doing a 45/45 compound cut when out of nowhere the saw mangled
the piece I was working on and stopped with a grind. After I looked at
the damage to the piece (and doing a finger count), I also noticed the
saw blade had bent the rear blade guard, broken the vacuum attachment,
and ripped into the aluminum side frame of the saw itself. The force
had to have been tremendous. I put on a fresh blade and noticed that
it wobbled. I fear the shaft is also bent.
I took the saw today to the dewalt dealer and it is still under their 3
yr warrenty so I think I am covered.
Has this ever happend to anyone? There were no nails in the wood
(common ash), and didn't think I was doing anything out of the ordinary
in the cut. I have only had a CMS for a year and a half, and don't
consider myself an expert in it's usage so any advice is welcome.
That would be my supposition as well--I'm thinking the vacuum system
was perhaps the culprit here. Possibly it had sufficient suction to
hold the small offcut piece up and carried it into the blade path?
I've never used the rear suction port, only a hood on the back of the
table so can't really judge for sure, but I'd worried about such events
I'd go along with that too. I had a similar thing happen on my Delta CMS. It
destroyed the blade guard and jammed the saw up. In my case I traced the
problem to blade with positive rake on the teeth. With negative and zero
rake blades I've never had a problem.
whew... Like others have stated, if the waste piece is not where it should
be after the cut, it probably flew up and did the damage. The smaller the
waste the more likely it will move around after the cut is complete. When
the waste piece is situated between the blade and fence, the acute angle
side of the set up, a kick back type situation is more likely.
It sounds like a perfect situation for a clamp. And if that is not
possible, stand clear of the potential projectile. He should be grateful
that this little peice just damaged his saw. It could have been much worse.
It's pretty hard to clamp a piece that's only a half-inch long, especially
with a compound cut... Trying to rig up some sort of zero clearance back
and side base for the saw might be productive, though. But I probably
wouldn't have thought about it till reading this thread.
Just my $0.02.
I saw a tip in one of the WWing mags a while back that had you push a
thumbtack through one end of a rubber band into the scrap to be. Make
sure the point of the tack will not be hit by the blade. Tack the other
end of the rubber band about 1 1/2 times it's length from the scrap to
the fence. this keeps it from bouncing back into the blade. Haven't
tried it though.
On 15 Aug 2006 06:45:44 -0700, "Todd the wood junkie"
When a cutoff is small it can be thrown anywhere and faster than a
blink of an eye. I suspect the cutoff jammed the blade--yes this has
happened to me. Another reason to be certain your stock is firmly in
place, your hands are a safe distance from the blade, safety glasses
are worn, and the operator is in sound mind with safety first. Glad
you were not hurt!
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