Re: lathe control

--- In CAD_CAM_EDM_DRO@y..., "Tom Eldredge" <harmonyt@r...> wrote:

> Gentlemen,
>
> I have been asked to retrofit a Turn-X C super chucker lathe

with a broken Dynapath 5 control and Getty Servos. The owner says
that the servo motors have brushes and

> I think the spindle is manufactured by Getty,driven by a type M350

3 ph half wave drive? Sounds like a DC spindle. I am going to go
have a look at it on Monday to see for myself.

>
> I have lately been out doing building remodeling to feed the

family, so am glad for the opportunity to do another CNC job.

>
> The retrofitted lathe must be able to cut threads under CNC

control. I would like some feed back regarding my best option for a
CNC control. I have done a retrofit with Ah Ha, but I think that
customer is not real pleased with the control. I believe he had tool
compensation problems that were unresolved, and I don't know what
kind of support Ah Ha has anymore.

>
> Does anyone have any general comments regarding retroffiting

this lathe?

>
> Can the EMC be configured to be a good lathe control including

thread cutting?

>

Tom
As far as I am aware and hopefully someone will correct me if I'm
wrong at the moment only Ahha and Microkinetics can do spindle
encoding and therefore threading.
There are a lot of folk out there using Ahha on lathes in a fully
commercial enviroment. It may be well worth asking for some advise on
the tool compensation.
I don't use or run CNC lathes so can't comment but try aking this
question on http://groups.yahoo.com/group/ahha_cnc

John Stevenson