Comment by whartung

I take it that simply dropping the saw (and then braking it afterward) is not fast enough to reduce injury?

I saw a demo of another safety saw, which was using very sophisticated monitoring systems. It was essentially dropping the saw if it detected the hand getting too close to the blade.

Saw Stop waits for contact. So the detector system has more time to move the saw out of the way, than the Saw Stop does.

I guess having to move the blade and the motor is too much energy, even or particularly, if its spring loaded, compared to springing the jamming piece that Saw Stop uses.