In article ,
Puckdropper puckdropper(at)yahoo(dot)com wrote:
allen476 wrote in
:

On Mar 12, 11:34*am, " wrote:
On Mar 12, 9:47*am, "J. Clarke" wrote:

*trim*

Breaking the blade during stopping is a non-issue--if the device
breaks it so be it. *They never let that be a consideration on the
table saw device so why would it be a consideration with a band
saw? *You're weighing a hundred buck blade against a thousand times
that much in medical costs.

The argument is exactly the same as the SS. *Are false positives
worth the price for that one time where it saves your hand.

After thinking about it, one could design a braking system in a 2
part design. A set of steel jaws that clamp the blade and a mechanism
to disengage the motor from the wheels. Instead of direct drive, one
could use 2 gears to drive the wheels, when the safety engages, a
spring would retract the motor and the jaws would engage stopping the
blade. Shouldn't damage the machine and a good chance that it won't
damage the blade as well.

Allen


For a band saw, this might work.

For a table saw, what happens if you're using a molding head or dado
stack? There's a lot of mass there spinning quite quickly, so those
steel jaws would have to be quite massive themselves. (It would be good
for saw stability.)

Seems like it'd have _real_ problems with a 'wobble dado', too.