SawStop Tested on Inventor
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Stumble ThisThe inventor of the SawStop puts his own finger on the line to show the dependability of his invention.
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slow,motion,saw,stop,conductivity,invention,safety,whew,time warp SawStop Tested on Inventor
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Let's see if he notices.
The table saw itself costs a lot of money, and at 60$, the replacement blade/brake modules aren't exactly cheap, but compared to the medical bills, workman's comp costs, and other costs associated with losing fingers, I don't see how most major woodworking companies can afford to NOT replace their older table saws with this system.
>> ^PerfectlySane:
This is a great idea but I've always wondered what else could legitimately go through the saw and carry a charge. What about wet wood or other common building materials?
They've thought of that too. From their faqs:
5. Will cutting green or “wet” wood activate the SawStop safety system?
SawStop saws cut most wet wood without a problem. However, if the wood is very green or wet (for example, wet enough to spray a mist when cutting), or if the wood is both wet and pressure treated, then the wood may be sufficiently conductive to trigger the brake. Accordingly, the best practice is to dry wet or green wood before cutting by standing it inside and apart from other wood for about one day. You can also cut wet pressure treated wood and other conductive material by placing the saw in bypass mode.
6. Can I cut conductive materials?
Yes. You can operate the saw in Bypass Mode which deactivates the safety system’s braking feature, allowing you to cut aluminum and other known conductive materials. If you are unsure if material you need to cut is conductive, you can make test cuts using Bypass Mode to determine if it will activate the safety system’s brake.
7. What happens if the blade comes in contact with a nail or staple in the wood?
Generally, the safety system will not activate when a nail or staple is cut. Although conductive, these objects are not large enough to cause the safety system to activate unless they are grounded to the table or operator when they contact the blade.
Invocations (eia) cannot be called by WolfDemon because WolfDemon is not privileged - sorry.
Completely no.
This is a man who has spent a LOT of time thinking and using his brain, and is so convinced through so many trials, that this would be safe to do... plus notice that he hardly just throws his hand into the blade, he puts it in really, really slowly, just a touch, so as to have minimal injury even if it did fail for some reason.
Not at all eia
Spoon, I see your point, but seriously: 10 a day. Accidents happen. Come on.
This system is not designed as a liability minimiser, it's designed to save your fingers... X D
If it doesn't work and you were doing something stupid (and let's face it, true accidents such as knotted wood catching or mechanical failure probably account for few cases compared to stupidity/complacency), you're going to get injured and it's your fault...
Having the thing fitted reduces your chance of an injury, not removes it. Sorta like wearing a helmet on a motorbike reduces your chances of head injury, but can't protect you against everything.
This is another example of the dumbing down of America. Teach people to use the tool properly. I can see the example given earlier of 10 serious injuries a day jumping to 60+ superficial injuries a day absolutely happening. As an engineer, I applaud the effort and the idea behind it. As a craftsman, I say, learn to use the damn saw properly!
An uncle of mine, with over 10 years of experience in fine carpentry, slipped due to some sawdust and opened his wrist down through a main artery. He was off for over 3 months, and out several thousand dollars in medical and lost wages even with Workers Comp. With this product, he would have fixed the saw, got a bandaid, and finished out his shift.
Even people who know what their doing can make a mistake. This isn't the dumbing down of anything, it's a safer way to work. Hard hats, steel toed boots, airbags in cars... all things that have almost nothing to do with the proper use of anything.
With some more expensive hardware you could make a system that would yank the saw blade down instead of jamming a stopping device into the blade. It would cost more for the parts that would react and move quickly enough, but it also wouldn't destroy your whole system every time it was set off. I think more companies would be interested in a reusable safety device.
This thing does both, and there is probably a good reason for that,in that even if you could make it move quicker, it might not be quick enough, and the speed and punch of the movement would also be more likely to damage the saw. With this system, it is both safer,(because the blade stops instantly) and you get away with replacing 2 parts.
The more accidents argument is completely ridiculous, no matter how much you trust this system, you ARE wary of anything that cuts through wood like butter. Even if it stopped without the 60$ replacement cost, and the extra work of replacing the blade/stopper, and without the minor wounds you could still get, I'd still be very, very careful.
Looks like our variables are .001" sec. to stop the blade and oh, how about 10"/sec of work travel? That gives us:
10"/sec * .001 sec
= 10" * .001
= .01"
So the maximum depth of a finger cut would be about 1/100th of an inch. Wonder how close that estimate is to their experiments.
It would leave a very boring scar.
"Hey guys, look at where I cut my hand on a table saw!"
"Where? I don't see..."
"Right here!"
"Fuck off you pussy, you did that with a pencil sharpner. I've had worse paper cuts."
The thing that baffles me is the major table manufacturer's rejection of the tech. The stories I've read and videos I've seen all paint them as fearing litigation by acknowledging the technology while still making tables without it. A part of me wonders if maybe he was asking for more than they were willing to pay.
But I suppose its better that the saw gets destroyed than a finger...
The litigation argument comes from the possibility it WON'T do what it says, on just one occasion, and they will have to recall all the saws they sold...