Re: [CAD_CAM_EDM_DRO] Gecko 2xx "Nema 42 modification"???

Hi Paul,

Before I get back to work, I've got Sanyo Denki 180 oz/in steppers, the
transformers (2 ea) are 28V 6A, giving be about 37V for the 4 G210
Gecko's, the way I'm currently wiring them. In series, that would
double (I wanted to start off easy)!

I'd think one could work from EMC's code and make an Indexer-style
driver. The hard part is getting the steps smooth. Windoz likes to
"steal" time, which makes the steps ragged. If it was a driver for DOS,
you could probably get around that. Or, like art and Carl have done,
use EMC's code to build a Windoz product.

I stated from scratch, about a year ago, and I wrote a DOS controller
program (before I knew about EMC), mostly for my own edification!

73's, Alan KM6VV
Yeah, I guess I'm a control nut!


"Paul R. Hvidston" wrote:

>
> Yup, hi Alan,
>
> Been lurking and working mostly (with the occasional comment). I didn't
> realize you were so into computer control until I saw your hobbit in the
> photos section. Pretty wild, and nice driver power supply and pendant, as
> well!
>
> I'll ask you too: what are your stepper specs, and what's the rating on your
> transformers and/or what are you feeding into the Geckos for B+? That is, if
> you are using steppers ;-). I want to get a feel for what people are using
> to drive their steppers. I've done PID servo designs and thought I'd just
> try some _SIMPLE_ stuff with steppers (ha ha) where I would be running
> open-loop and not have to worry about tuning the system. Live and learn,
> hopefully.
>
> On a different topic, I was thinking that if one wanted to make a G-code
> printer-port driver for DOS, one could grab the logic from the EMC C source
> code and easily(?) adapt it for that environment. Possibly an alternate
> choice for Indexer-LPT if I understand it correctly. Just a thought. Now
> back to our regularly scheduled work.
>
> Regards,
>
> Paul R. Hvidston, N6MGN
> ACKSYS Engineering
> Upland, CA
> ----- Original Message -----
> From: "Alan Marconett KM6VV" <KM6VV@...>
> To: <CAD_CAM_EDM_DRO@yahoogroups.com>
> Sent: Wednesday, February 27, 2002 1:13 PM
> Subject: Re: [CAD_CAM_EDM_DRO] Gecko 2xx "Nema 42 modification"???
>
> > Hi Paul!
> >
> > I see you've found your way over from the mill/drill list! Welcome!
> > You might also wish to take a look at the 4 axis driver I recently
> > built:
> >
> >
> >
> http://photos.groups.yahoo.com/group/cad_cam_edm_dro/lst?.dir=/Driver-PS+%26
> +Pendant&.src=gr&.order=&.view=t&.done=http%3a//photos.groups.yahoo.com/grou
> p/cad_cam_edm_dro/lst%3f%26.dir=/%26.src=gr%26.view=t
> >
> > Sorry for yahoo's long URL! It's under "DRIVE P.." on the first page of
> > photos.
>
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