On Thursday 19 January 2017 05:54:59 andy pugh wrote:

> On 19 January 2017 at 10:36, Gene Heskett <[email protected]> wrote:
> > This to function as a phase adjustment between the spindle and an
> > existing thread.
>
> I think you are trying to do this in the wrong place.
>
Entirely possible Andy.

> Either move the thread start position to get your phase change (Not
> usually a problem,

True. But then I have to bore an internal thread to match. Calculating 
the start position when there is a speed dependent phase lag to lockup 
seems to be beyond my math ability.

> could be tricky with very fast threads if the 
> tailstock centre gets in the way)

Humm.

> or add an "offset" component in HAL 
> to the motion.spindle-revs input.

I can't visualize how that might work. :( Too early or too late, effect 
on the wet ram is the same, darnit.

Thanks Andy.

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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