On 10/5/22 22:56, Jon Elson wrote:
Wow, it gets deeper!
It is NOT the encoder, or anything in the encoder-reading process.
I marked the motor shaft, and the motor is returning to the exact same
position every cycle.
Well, I tried a different indicator and mount, and the problem was in
the indicator mount! I was using an old knock-off of an IndiCol that
clamps around the spindle nose or end mill holder and has several rods
with locking thumbnuts on them. These swivel joints were slipping
just a tiny bit each time the vise touched the indicator, even though
they were PRETTY tight! Ugh, 3 days of going around in circles trying
to tell where the issue was!
Jon
Glad you found it, Jon. And don't feel like the lone stranger, I've been
caught out by such stuff lots of times.
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, 1940)
If we desire respect for the law, we must first make the law respectable.
- Louis D. Brandeis
Genes Web page <http://geneslinuxbox.net:6309/>
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