I recently bought one of the Rockler phenolic resin zero clearance
I cut the slot by raising my sawblade through the insert as per the
instructions (and in fact moved it all the wa up and down a couple of times to
make sure it was cut cleanly)
However, now whenever I run the saw, there is a high pitched sound
coming from the blade "rubbing" against the sides of the insert
whenever the blade is at any height above the insert.
In addition to being annoying, I am concerned that this friction will
suck power from my saw.
-- So, is such noise (and associated rubbing) normal?
-- If not, what can I do about it?
(I was thinking about widening the slot on one side by adding a piece
of paper as a spacer to one of the washers but am not sure how to do
widen the other side. Also, not sure whether this would defeat the
purpose of a "zero clearance" insert)
Note my saw is pretty well adjusted with runout of just .001"
(actually, I imagine that the reason I am having this problem is that
the runout is so little since with a larger runout or wobble, the slit
would have been cut wider)