I cut made a 5/16" cut in 6/4 cherry this morning. The cut piece actually
shot through the wall and hit a couch 8' away in the next room; it was quite
I understand the principle, but how can it be prevented? My guard (which I
obviously was not using) has the pawl on it to prevent it, but the cut was
too thin to let me use the guard even if I wanted to.
Sounds like you had the small part between the blade and the fence. Don't do
Push the larger part of the stock through between the blade and the fence;
leaving the smaller cut-off to fall to the other side of the blade.
The splitter might have made the whole less energetic by minimizing the
depth of grab, but if the teeth extend wider than the splitter, you'd better
have some clearance elsewhere.
Physics types know how to get the clearance.
The missile became a missile BECAUSE of the teeth at the back of the
cut that came in contact with the wood. A splitter may - and I say
may for a reason - keep the kerf open and the wood away from the
back teeth. A riving knife would more than likely prevented
A "splitter" sticks UP behind the blade, close to it at full height
but farther and farther from the teeth actually contacting the
wood as the blade is lowered. A riving knife, on the other hand,
wraps around the read quarter of the blade and thus stays close
to the rear teeth regardless of the depth of cut. In this case,
cutting 2 inch thick stock, the distance between the thing keeping
the kerf open and therefore away from the upward moving saw teeth
would be about the same, splitter or riving knife.
In addition to a splitter or better yet a riving knife the push
stick thing would've also helped. There is something better
- at least for shorter rips - less than a foot and a half -
called The GRRRRIPPER that holds the stock - on both sides of
the cut. Really a "must have" if you do a lot of short rips,
especially narrow ones.
I don't like to get hit with flying wood - I have enough trouble
with sharp chisels and only so much blood. For that reason
I researched the subject a bit, thought about the physics even
more and put together some web pages about kickback, what it
is, why it happens and what I could do to minimize getting
hit by wood missiles.
Worth a look and may save you some grief. Knowledge is power.
Whether you use that power ...
my 2 cents
When cutting small strips of oak last summer, I did have the larger piece
near the fence, but I still had kick-back. Lucky for me I was in the
driveway with the TS, and the kick-back piece shattered the fence board
Similar problem today, while straight lining the rough edge of a cherry
board, the rough edge tapered to nothing and the nothing edge went down in
the not so zero clearance insert and stopped the saw dead. The motor kept
going but the belt slipped, thought I'd buggered up the linkbelt but it
seems fine. The hardest part was removing that wedge of wood jammed between
the blade and insert. The insert is zero clearance for my regular blade but
I was using a thin kerf, just hope it didn't bend the blade, gotta check it
"Shut up and keep diggen"
> I cut made a 5/16" cut in 6/4 cherry this morning. The cut piece
> shot through the wall and hit a couch 8' away in the next room; it
> I understand the principle, but how can it be prevented? My guard
> I obviously was not using) has the pawl on it to prevent it, but
the cut was
> too thin to let me use the guard even if I wanted to.
If you don't mind a rookie chiming in here, I see another possibility.
Are you using a zero-clearance throat plate? If not, it's possible
that the thin cutoff could have lodged between the blade and the
Another thing that could cause a kickback is not having your fence
properly aligned with the blade, although that's probably not the
cause of this one.
I wouldn't rely on the pawl to stop a kickback. Use your head first,
but in combination with other safety devices. I've seen a few
kickbacks, and I've learned to think about each cut before I make it.
Old trick not used much today, but works well to help eliminate kickback.
square your fence to the sawblade, when they are as perfect as you can get
them, heel the ripfence out from the back of the blade about the thickness
of a business card. This creates a "gap" at the back of the blade which
allows the teeth to miss the cut off and helps eliminate kickback. Reverse
the process to insure kickback and clear the space between the blade and
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