James "Cubby" Culbertson wrote:
"Stoutman" .@. wrote in message
...
Are you using a dial indicator to align your outfeed table with the
blades? If not, I highly recommend it. The TS-aligner Jr works well for
this task.

--
Stoutman
www.garagewoodworks.com


No. I've never been able to figure out how to use a dial indicator for
anything. I set it up, then find I need to move it to get another
"confirming" measurement so to speak. I know, I'm stupid in that respect.
I did finally get the jointer working well. Just took a few minutes
setting the outfeed table and blades.
Cheers,
cc




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Cubby ... find a machinist who is willing to show you how. The whole
thing takes just moments. The indicator is used for a single series of
measurements with the understanding that you will need to do the same 3
second setup each time you start over.

I could show you how in 5 minutes and show you WAAAY mor than you will
ever need to know in 30. But I doubt if I can write anything up here
that will make much sense.

Understand that 1) the indicator must be firmly attached to a stable
base. 2) this stable base is resting on / sliding over the reference
plane (ie; on a jointer, one of the tables) 3) the surface being
adjusted will end up parallel to that plane. 4) the adjustements to be
made will consist of something called 'successive approximation' ...
even if you make the measurements under laboratory conditions, there
will always be measureable error left. If you can no longer measure the
error, great. But a better test instrument could. 5) the smallest level
of error you can reliably count on is 1/2 of 1 division on the dial.
That is, a dial indictaor marked in .001" increments can be relied on to
within .0005" +- .00025" To put this in perspective: at .003" you cannot
see wich of two blocks is the larger. Below .001" it is highly unlikely
that you can feel the difference between them.

All of which is to say ... don't waste time trying for more accuracy and
precision than you need. If you can reliably make cuts to within 1/64"
of where you intended them, you are a better man than I am and far
better than many who nonetheless do outstanding work.

An indicator is an excellent way to set a blade. Mark my words. But it
is not the only way to skin that particular cat.

Bill
--
Make yourself an honest man, and then you may be sure that there is one
rascal less in the world.
Thomas Carlyle (1795 - 1881)
http://nmwoodworks.com


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