Not saying I agree with using drum brakes in this application, but one
possible place is at the pulley end of the blade arbor. I have seen small
brake assemblies that were actually built into pulleys, though much larger
than the ones used on table saws.

--
There are no stupid questions, but there are lots of stupid answers.

Larry Wasserman - Baltimore Maryland - lwasserm(a)sdf. lonestar. org