23 thoughts on “Extreme Braking

  1. Sawstop. It’s a great item to have due to the ability to stop almost instantly if your finger touches the blade. Something about the electrical conductivity of skin that shuts it off. Oh, and actually there is an aluminum piece under the plate that slams into the blade when the blade contacts skin. Screws the blade; but saves a finger.

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  2. Clip is from Jonathon Katz-Moses. He did an 8 minute video showing the stopsaw in action. Includes shots of the cartridge stopping the blade, both regular and dado blades in slow motion. He has other videos showing tools in slow motion also.

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  3. I wished this had been available back in the day, my dad would have been able to save two of his fingers on his left hand… by a table saw. His fault, wearing brown cotton gloves, just cutting a scrap piece of wood…

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  4. Every time the brake is triggered the replacement parts will set you back seven dead Benjamins.. Every time you put a piece of wood to it that has higher moisture content it will trigger the brake as it operates on electrical conductivity of the material it touches. Simple rule, do not let your hands go on the table, EVER.

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    • You’re wrong on both counts …. I’ve triggered mine and it’s nowhere near $700 to replace the cartridge. Still today they’re less than one Benjamin, and even with the blade replacement it’s still not anywhere in your price point. And wet wood can be an issue but it hasn’t in all my years of using my SawStop. My trigger did come, however, from forgetting to deactivate the safety mechanism when I cut some very wet pressure treated wood.

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  5. There was a lawsuit where a contract worker sued Ryobi for making an “unsafe” table saw – because it didn’t have the Saw Stop technology, which was invented after the saw went on the market. He still won. How can a company be punished for making a “dangerous and defective” saw because it doesn’t have something that wasn’t even invented when they designed the saw?
    https://www.finewoodworking.com/2011/10/07/appeals-court-upholds-osorio-tablesaw-verdict-feds-consider-landmark-safety-standard
    As you can see, that was in 2011 and CPSC was talking about mandating all table saws have that technology. Thankfully, saner heads seem to have prevailed because we can still buy a table saw that doesn’t have it.
    The guy who invented the Saw Stop shopped his invention to all the major tool makers but everyone was reluctant to adopt it. It simply hadn’t been proven well enough. Tools live a hard life; is the bouncing around and getting slammed or dropped or other crap that happens to saws going to break it? It’s a feature that might be on a saw for years and years before it’s “needed” – is it going to work after sitting around for 20 years in a non-air conditioned shop? Is it going to false trigger all the time? Is there a better way to implement the safety than letting the blade start cutting a finger and measuring resistance?

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  6. Those are standard in almost all of the trade schools in Alberta and Saskatchewan.
    Costs a pile of money when they are activated. A friend of mine who instructs at one of the trade schools said something to the effect that if a student causes it to trip, they pay for a minimum of half the replacement out of their own pocket.

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  7. I have been using a contractor table saw for the last 20 years that was made in the early 80’s I think. I have always had a healthy amount of respect for it’s ability to remove my fingers. While this sawstop seems like a good idea, learning what might hurt you and being ultra careful around it is better IMO.

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  8. Yeah – still ain’t putting my finger in there.
    Of course there were a few women I said that about. Seems I lied……..

    Leigh
    Whitehall, NY

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  9. I’ve been nicked once in all my years of sawing. Just a tiny nick, all the neighbors heard me cuss, and it was the only lesson needed. Pay The Fuque Attention.

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  10. When I was about 17, I was using a skilsaw freehand when it slipped and dropped into my groin. I was wearing a leather tool belt, and though my finger came off the trigger as it slipped, the blade went through four layers of leather, my blue jeans, and the jeans pocket. The blade stopped just as it came to skin and I wasn’t even scratched. I just stood there quivering, looking at my bare leg. My dad saw the whole thing, and I suspect he had to change his underwear too.
    I’m a lot more cautious in my old age here. I wear muffs and goggles to run the damn lawnmower now.

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  11. Power saws – of any kind – scare the absolute crap out of me. My rules are: 1) Do I actually need to use a power saw for this? 2) If so, how do I set the job up to eliminate as much possibility of injury as I can? 3) Before I start am I really @^#$ing SURE I’m planning this right? 4) Is there anything I’m missing here? 5) Am I well rested and alert?

    Why all that? Way back when I had been cutting trees all day on the grandparents’ farm and pushing to get done before dark. Tired, anxious to get done, needed to sharpen the chain but I’m close to being done, etc. Shifted my weight while cutting, my foot slipped, that leg moved, the chain hit my leg. Tore the jean fabric and left only the white threads underneath. Not a scratch on the skin.

    Someone was looking out for me that day. I took the lesson to heart.

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    • I got a 2″ scratch on my leg from a chain saw in almost the exact same way, that barely broke the skin but made a believer out of me you dang betcha.

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      • Ran a chainsaw across the top of my foot once.
        Before cutting out mangled chunks of meat and stitching me back up the doctor lady said “this is going to hurt.”

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  12. My 25 year old table saw came with a big plastic blade cover and two metal tabs that you were supposed to slide the board under while cutting it. The plastic kept your hands away from the blade and the metal tabs were anti-kickback. Except you couldn’t see crap while using it and it was difficult getting the board started under the plastic. I tried, I really tried to use it as intended. But after a few projects I took all that mess off and threw it away.

    I’ve had several close calls, so there’s a little mental preparation on my part before cutting and I make sure to use push sticks on any small pieces. Still dangerous, but then so is life in general.

    Every time some feminist starts railing on about women earning 70 cents to every dollar a man makes, I remember that I can count at least a dozen men I know missing various body parts from working, but not a single woman who’s been maimed at her job. Funny that.

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