"Frank Ketchum" wrote in message
nk.net...

"W.L.Hall Workshop" wrote in message
...


SawStop has provided us with a spare brake cartridge, so we will be
"test
firing" a saw on Thursday, Jan 13th at 3:00pm. Your welcome to join us
if
your in the area (Minneapolis).


Wish I could. Would it be possible to take a video of the test and post?

I have had doubts that the speed at which the saw stop system responds is
adequate for the level of protection that they claim. I assume you are
going to use a hot dog or some such to test this thing. Consider the
speed
at which the "finger" is moving when it contacts the blade. I am curious
if
the system will be adequate for a finger approaching the blade at
something
like 2000 mm/sec (about 6.5 feet/sec) which is the hand speed constant
used
to calculate safe distances in automation equipment with electronic safe
guarding.

In any case, thanks for the info and please post results.

Frank



6 1/2 feet per second? Man, I can't feed wood that fast on my table saw. I
need a better table saw.
--

-Mike-