Sawstop has been around for a while and you may well have seen some demos, but it's evolved and the Jonathan Katz-Moses YouTube Channel posted some high speed video with a high quality modern camera.
It's very, very impressive. The Sawstop puts a 500KHz sine wave on the blade and the MCU monitors the amplitude. If meat (finger, hot dog, etc.) contacts the blade, the signal is capacitively coupled to it and the amplitude drops activating a brake which was originally polycarbonate but is now aluminum.
The results are amazing.
https://www.youtube.com/channel/UCXBNF-A7QlYT3tT-B9N4ElA
Edit by moderator: Direct link:
It's very, very impressive. The Sawstop puts a 500KHz sine wave on the blade and the MCU monitors the amplitude. If meat (finger, hot dog, etc.) contacts the blade, the signal is capacitively coupled to it and the amplitude drops activating a brake which was originally polycarbonate but is now aluminum.
The results are amazing.
https://www.youtube.com/channel/UCXBNF-A7QlYT3tT-B9N4ElA
Edit by moderator: Direct link:
Last edited by a moderator: