Leon wrote:
"GarageWoodworks" wrote in message
...
On Jan 8, 2:24 am, Puckdropper puckdropper(at)yahoo(dot)com wrote:

Interesting new technology being developed he

http://www.youtube.com/watch?v=xHajjMUrSOg

The blade is saved. The blade stops by use of a "proximity sensor".

Interesting technology but I can tell you from personal experience
that stopping in about 1 second is not nearly fast enought to prevent
bad cut.

looking at it closely, it stops the blade before your fingers get too near
it. unless you're pushing wood in really fast, the blade would stop before
your parts would get near the blade.

it detects the difference in light reflections by using some led lights and
some sensors i would guess. seems that it could be fooled, and how would one
use a push stick with that overhead guard?