Re: Lathe Retrofit.. Threading?

You might check out this link: http://www.dakeng.com/threading.html

And you can buy optical interrupter sensors here inexpensively:
http://hopco.com/surplus/TCST5123.htm

Good luck... share with us what you do.

Russ

--- In CAD_CAM_EDM_DRO@yahoogroups.com, shyningnight@y... wrote:
snip
> I"m not at all clear on how exactly to get it to pick up the same
spot on sucessive passes
> of thread cutting.
>
> I've sort of gathered that some kind of encoder on the spindle is
needed... but I don't
> know what kind, and I don't know how to connect it to a controller
(for example, the
> Gecko stepper controllers).
>
> What kind of encoder are we talking about, and is there a standard
way to provide the
> controller (or computer) with the feedback needed to cut threads?
>
> Or should I retrofit my Mill-Drill first?
>
> Thanks for any tips!
> Paul F.