Forum Discussion
blofgren
Jan 21, 2019Explorer
Me Again wrote:BigToe wrote:
1. Bosch cleverly invented the use of automotive air bag pre charged gas cartridges to stop the motion of table saw blades if an operator's hand made contact with the blade. Bosch's design was actually preferable to the competitor's blade stopping technology which destroyed the teeth of the saw blade in order to stop it. Bosch's air bag cartridge design saved the blade, and saved the fingers.
The problem was, the flesh detection technology that Bosch utilized to sense when the fingers were about to be cut was already patented by the competitor, called Saw Stop, which introduced the entire concept of safer table saws to market. Bosch built upon that idea, and introduced an improvement to the blade braking aspect, but Bosch refused to license the flesh sensing aspect from Saw Stop.
I was the monitor in our snowbird park's wood shop when one of the other monitors trip the Saw Stop. Sounded like a shotgun was fired. I hung the blade and stop module from the beam above the saw stuck together. It is a very nice saw. We have it built into a table big enough to rip a 4x8 sheet of plywood without needing some to catch the pieces.
He was cutting small pieces of wood for wooden toy and used a carpenter's pencil to hold the small piece to the saw fence as he pushed it threw. The lead in the paint on the pencil triggered the stop.
Chris
Very interesting!
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