A device that stops a blade within 5 ms of contact with human flesh.
Videos of operation at http://www.sawstop.com/home.htm (this site may
be 'slashdotted', so check back in a day or so if you can't see it).
This device was introduced in 2001, and was supposed to be
commercially available by 2003. The device is supposed to add about
$150 to the cost of a consumer-grade table saw or bandsaw.
Gotta wonder, though... will this type of technology actually
*increase* injuries because of a reduction in respect for the tool?
Howard Lee Harkness
Insurance for H1-Bs: http://www.H1Bins.com
This has been talked about here for quite a while, 3 or 4 yeare IIRC.
Only for those that can find a way to get hurt by a saw that is not plugged
in. Does the safety on a gun make it more dangerous because it will
encourage you to look down the barrel of a loaded gun? If you are tye type
person that would not have some fear of a 3400 rpm blade because you know
that it will stop turning if you touch it, something else is going to get
you long bedor the saw will. Pedestrians always have the right of way on
the street. Those that practice that right over better judgement get hit by
cars. Like anything else in life, there are dangers all around us all the
time. The Saw Stop is designed to lessen the results of an accident, not
prevent the accident. If you think that it would make you less careful
around the saw, perhaps you should not be around the saw to start with.
The problem with this new device is that all table saws made previously are
defective in the eyes of greedy lawyers. They will demand table saw
manufacturers incorporate this device on all new saws and provide recalls to
retrofit old saws. Also, what about the thousands who have lost fingers to
the evil table saw. They will demand compensation because their saw did not
have this safety feature. It's all about sucking the money out of the evil
corporations and there is no personal responsibility.
Not being negative about the safety device. It has to prove it's worth (cost
vs. benefit). It's just that someone else is always deciding this for us
idiots who can't do anything without hurting ourselves.
My son-in-law is a woodworker and a family practice physician. He has seen
the demo and is concerned this is going to cut in on his business.
Seriously, I know nothing about it. I do know I got cut pretty bad a few
years ago after the saw was turned off. I walked back to the machine to
pick up a piece of cutoff and didn't notice the blade was still spinning. I
doubt if this would protect us from this kind of stupidity.
I did the almost same thing almost 16 years ago. I e-mailed the Saw Stop
people a couple of years ago and they indicated that the device will work
even if the power to the motor has been turned off.
I don't generally turn on the power in order to do it. Geez, it's the 21st
century--kitchen appliances have more processing power than a '60s
mainframe--how hard do you think it is to program a control so that "if
power has been turned on and off and blade is moving and skin touches it
activate, if blade has stopped and moves again and power has not been
turned on then do not activate".
How much power do you think it draws? I suspect that it has some kind of
backup power source with enough juice to keep it armed until the saw quits
turning. That's the way I'd design it.
Reply to jclarke at ae tee tee global dot net
On Wed, 30 Jun 2004 23:04:10 GMT, Lobby Dosser
......and in reply I say!:
remove ns from my header address to reply via email
The sawstop will work when no power is applied to the MOTOR.
If you change blades with power applied to SAW the you deserve what
Which I never bothered doing, until seeing a thread here a year or so back
about a Unisaw that turned on by itself (apparently a defective switch).
Figuring that mid-blade-change is a bad time for this to occur, I _always_
unplug now before changing blades. It takes only a few seconds.
Doug Miller (alphageek-at-milmac-dot-com)
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