"When a portion of the users body (hand) gets close enough to the blade to
safety mechanism, the kerf plate of the table saw is driven upward to push the
likely the material being cut) up and away from the saw blade".
Does anyone else here see a problem with this?
I can't see this sort of mechanism operating anywhere nearly as quickly as the
While it might work fast enough to prevent an amputation, I very much doubt that
it will be
able to prevent deep cuts and serious injury.
Also, it seems to me that this will almost guarantee a bad kickback if it
triggers during a rip
cut: whether the work is guided by hand or by featherboards, it's almost sure to
shift a little
bit at least, at the same time that it will be lifted clean off the table (and
possibly over the rip
fence). While the device may succeed in preventing (or reducing the severity of)
injuries, I can see it *causing* a variety of other injuries, too.
Other questions arise, too: Will it work with shop-made zero clearance inserts
non-conductive), or only with the metal factory throat plate? Will it function
properly if there
are hold-downs in use?
I'm betting this never makes it to market.
IIRC it is when the hand touches the blade.
""Alternatively, according to a second aspect, the safety mechanism is
arranged to rapidly urge an extremity of the user away from the active
portion of the power tool." So from what I understand, the safety
mechanism detects contact with the blade (active portion), but instead
of stopping the blade, a second safety mechanism is used to move your
hand away from the blade."
So far I don't.
I don't know, if the "lift" on the insert moves as quickly as the saw
stop brake it should work fast enough.
However the plate itself coming up that fast might break a finger,, ;~)
I would think that if it triggers as quickly as the SawStop brake that a
kick back would probably be slight at most.
Again since it was inferred that it activates when touching the blade
the material for the insert should not be a factor in triggering.
But then again they double speak and mention when it detects when the
hand is close enough to the blade.
Hard to say what the mean exactly..
Perhaps but there was a vast number that said the same about the SawStop.
I also thought about the finger-breaking possibility, too. Kind of like
air bags, which can break glasses, thumbs, or even arms if they get in
I also wonder about cuts in heavy wood. I don't know about you, but
sometimes I cut large, heavy planks, but not too thick. So if you are
cutting a heavy wide board, weighing 10 or 15 lbs., can this thing push
it up fast enough to urge your fingers out of the way?
As far as the SawStop controversy, jeez, will everyone just get over it?
In mass production it will add a small amount to the prices of saws,
can be disabled if not desired, and if automatically mounted on all saws
will protect the idiots who value a few dollars over their fingers.
Just like seat belts and air bags in cars. They come with the cars, but
can be disabled. If some guys really, really, really want saws without
SawStops, there are uncountable used saws on the market in great condition.
On Sat, 21 Jul 2012 11:57:07 -0400, "John Grossbohlin"
Q: Why does Obamacare require 20,000 new IRS agents to be hired?
A: To handle all the _personal_bank_account_ oversight the gov't will
now have under the new regs.
In the depth of winter, I finally learned
that within me there lay an invincible summer.
-- Albert Camus
Imagine a light piece of 1/2 square being cut.. and triggering while the
miter gauge and fingers are in place. The miter gauge binds... Now you
have a real problem.. Or the 1/2 sq. piece is thrown at the user at a
I agree, this is probably a big problem.
Me too. I think it has a set of problems, but it's a good start.
I still like Saw Stop, but maybe Gass has exceeded his welcome...
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