On Friday 01 March 2019 11:31:45 Jon Elson wrote:
> On 02/28/2019 10:23 PM, Gene Heskett wrote:
> > Jon, have you considered setting a digital caliper to say
> > .2500" and locking it, then clamping it down well enough
> > it won't slip while you probe its gap.
>
> I homemade a ring with a pretty good inside bore, but it is
> not as good as a real inside mike standard. Anyway,
> measuring a gauge block with the probe lets me do the best I
> can with my CNC mill. I get a combination of machine
> backlash and probe accuracy, no idea how much of each is in
> there.
>
> Jon
>
I just hooked mine up, pretty bad, and so eccentric, around .125" of
wobble at the ball, same diameter as the ball, its going to have to be
locked tight in order to meet the .005 accuracy it claims. 2 problems,
when installed I have, when z is at top of travel, just about the panel
thickness of clearance with its default 2" long probe, to a 3/8" thick
spoil board, so I need to find a very short probe, an inch or less. Once
thats done and it epoxied into place, I may be able to adjust the bottom
spider to remove the eccentricity at the ball.
I measured a .250" caliper 3 times, came up with .176 once, (.251 with
the ball), .187" once, (.262 with the ball, and .174 (.249 with the
ball)
But it turned a few degrees so those measurements are exactly the same as
found on the ground behind the male bovine. :)
Is it worth trying to fix? Or just another way to keep me out of the
bars?
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Cheers, Gene Heskett
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>
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