On 10/10/10 10:34 PM, Josepi wrote:
For fast stops a powered brake on may be preferred to normally brake on with
a spring setting the speed and strength to be held open all the time.


I would prefer powered off/normal on, because the operator would get
used to the blade always braking and in the case of a solenoid failure,
the blade would not coast.

I would also think an assembly with wheels applying just a little
pressure to the sides of the blade would make a decent passive system.
It would be just enough pressure to slow down the blade in a second or
two and not enough pressure for the motor to even register the resistance.

Think about how little pressure it takes with a scrap piece of wood to
stop a coasting blade.

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-MIKE-

"Playing is not something I do at night, it's my function in life"
--Elvin Jones (1927-2004)
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