Wait, so is it a one time function? Can the wire be reset?
https://www.sawstop.com/service-tips/what-to-do-if-the-sawst...
One of them did require a resharpen though.
A few weeks later I needed some scrap for something, grabbed the piece closest on hand, pushed it into the blade and immediately triggered the wet wood alert and the blade spun down slowly. I knew that the wood wasn't wet, so started the saw up again and pushed it straight back into the blade only with more force, triggering it straight away.
Second time was due to cutting a lot of pitch heavy pine over an extended period of time - it built up on the cartridge and after a blade change that I didn't check the clearance on, it bridged the brake with the blade (i assume) and triggered on start up. (It comes with a tool to check this clearance after a blade change - I of course did not follow the instructions).
And
2) correct.
You can manually disable the auto—trigger mode in those situations though (bypass mode).
It also doesn’t like anything conductive - so anything coated with Mylar, any kind of conductive dust or debris, etc. is also a crapshoot.
Very much edge cases though, unless you’re dealing with a lot of randos. A workshop I used to share had a wall covered with sawstop ‘trophies’, due to people doing weird stuff.
At that point, it's just another dumb saw that will chop your finger off, but it won't trigger the cartridge, and you can make what ever cuts you need.
The way it tries to determine if it's wet wood / a body part is the capacitance change. Slightly different profile which they can use to make an educated guess (obviously erring on the side of caution).
This is why for some time they would give you a free cartridge if yours triggered on flesh - they wanted the data on there from real-life flesh contact to improve their calculations.
The automatic defibrillators manufacturers also will often send you a unit for free if you used your unit for an actual defibrillation. Same idea.
They do it (basically) by predicting whether your hand will touch the blade, rather than waiting until it does touch the blade.
If you wait until someone actually touches the blade, then yes, you have to operate very very fast. That is unavoidable due to physics, as you say.
But if you can gain 100ms or 250ms by proving a 100% probability that the hand will touch the blade before the person can stop it, you now have a lot more time to stop the blade.
I can show you a video of an air quality meter sitting between the cameras and the saw hood if you want. The amount of particle change is minimal
This is company producing high end sliding table saws that cost tens of thousands. They've been at it for over half a century.
This is not someone producing a 299 saw as cheaply as possible.
They are a German company (ie regulated heavily) and have a ridiculous number of safety standard certifications that test things like "what happens when there is dust"
do you really think they haven’t thought of the obvious basic issues and figure out what to do about them?
if so, what evidence do you have that this is true?
(Also I think you don't understand European requirements on dust extraction and allowed exposure to wood dust. This saw does not produce a meaningful anount of dust)
I can't think of anything, short of dropping a person on the saw.
Because that's what doesn't happen and people lose fingers.
A hawk decided to throw a dead animal at the window behind me hard enough to shatter it. I was startled and my hand moved enough for my palm to cross the top of the blade.
I would not have lost fingers most likely but it would have been very bad.
To your point accidents are not always foreseeable. Yeah some people work stupidly but plenty of times, It’s just random unexpected events.