Cheshirechappie
Established Member
One of the great strengths of the riving knife, short rip fence and crown guard is that (as long as they're properly designed, made and installed)once set up and correctly adjusted, they have no moving parts. They are therefore pretty reliable. Used in conjunction with push sticks, you have a set-up that has a reliable and inherent highish degree of safety for the operator and for anybody else in the vicinity.
Saw-stop relies on sensors and moving parts, which may or may not get proper maintenance in the rather dusty and potentially dirty environment in which they are expected to work. There is therefore scope for failure - blocked or failed sensor, and moving parts that may fail to move at the critical moment. I very much hope I'm wrong, but I fear that it's only a matter of time before somebody suffers a serious injury because the saw-stop equipment didn't work as it should have done. Also, I don't see how saw-stop can prevent or minimise the chances of kick-back, so whilst it's a very impressive piece of technology when it works, it has it's limitations.
Saw-stop relies on sensors and moving parts, which may or may not get proper maintenance in the rather dusty and potentially dirty environment in which they are expected to work. There is therefore scope for failure - blocked or failed sensor, and moving parts that may fail to move at the critical moment. I very much hope I'm wrong, but I fear that it's only a matter of time before somebody suffers a serious injury because the saw-stop equipment didn't work as it should have done. Also, I don't see how saw-stop can prevent or minimise the chances of kick-back, so whilst it's a very impressive piece of technology when it works, it has it's limitations.