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On Tue, 10 Aug 2010 16:42:33 -0500, "Leon" wrote:


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I have no rear bar (one of the weaknesses of the Biesemeyer fence,
IMO). OTOH, I can see why they don't lock front and back. The second
latch adds another source of error.


What is wrong with your Beisemeyer fence? Seriousely, there must be
something wrong if you can not rely on it to give you repeatable set ups
unless it is mounted on a marginal saw.

Nothing is wrong with it. I'd rather have something to hold down the back
of
the fence, is all. No, I don't trust the measure on the front. Haven't
on
any saw. Been burned. I guess it could be the blade thickness, too. I've
never bothered to track it down. It's easier to measure off the tooth and
the
Wixey makes that unnecessary.

I measured the distance from the fence to the blade for OK cuts when I had
a Craftsman TS and stock fence but stoped doing that when I added a Jet
Exacta fence. My new, 11 years ago, cabinet saw has the larger version of
that fence.
I use premium quality blades and have them checked for flat every time I
have them resharpened.

A problem that can occour with any method of measuring is that if a blade
becomes "non-flat" measuring fromt the fence tot a tooth on the blade will
yield inconsistant results. This will throw off the accuracy of the built
in system on the Biese fence also. While the fence may be accurate at a
given point a slightly warped blade that throw all of that out the window.
Measuring from the blade to the fence will not improve that situation.

Think kerf blades seem to exagerate the problem as they are less likely to
stay flat.

I on occasion I will make a rip cut, measure the result, and verify the
cursor setting on the fence.








I have been using a Jet cabinet saw with a Biese clone the Jet exacta
fence
for about 11 years now and for the first time last week I had to actually
reset the curser, it was out 1/64".

Again seriousely you absolutely should be able to depend on a Biesemeysr
fence rule setting and or any clone.

Now if you think I may simply be happy with cloce, think again. Swingman
and I gang up on building high end kitchens. I but the sheets of plywood
for all the cabinet panels, he cuts and assembles the face frames complete
with dado's. My panels must fit in his dado in all of the face frames.
We
have never had a problem. He uses a Unifence and has no issues with
truste
either. Basically both of our saws must be calibrated identically.