Re: FS: New 4 axis microstepping driver $45.00 USD/+free cadillac

Howdy John..

If you remember, I was looking at these and other stepper controllers.
Still working on the perfect HOME Built drive. Not got there yet.
The Pic's are the best way to go nowadays it seems. I still got a pile
of parts just waiting on a decent design. A 68HC11 chip just came in
the mail today. A plc type addressable rack system would make the most
sense. ONE cpu, input_look/latch and drive_output/latch boards on same
cable. Looks nice on paper anyways. I know what I do want, very large
heat sinks seperate from cpu..

Want to add to the mix? I am open for suggestions.

Bipolar chopper/PWM drives rule.

David Cofer





--- In CAD_CAM_EDM_DRO@yahoogroups.com, "stevenson_engineers"
<john@s...> wrote:

> >--- In CAD_CAM_EDM_DRO@yahoogroups.com, "ibewgypsie"
> ><ibewgypsie@h...> wrote:
> > --- In CAD_CAM_EDM_DRO@yahoogroups.com, "Fred Smith" <imserv@v...>
> >wrote:
> > > We have a limited edition, microstepping driver available. Based
> >on
> > > the Allegro A3977 chip. The board is rated at 2 amps per axis and
> > > maximum of 35vdc. This is a promotional item and is subject to
> >prior
> > > sale. Quantities are very limited.
> > >
> > > These boards are just $45 with purchase of DeskCNC and controller
> >card
> > > ($350).
> >
> >
> > Ain't this kinda like getting a free cadillac with purchase of the
> > ashtray for $50,000??
> >
> > Ha. Lots of luck. Most us Home shop-pies build our own. Read that
> > broke all the time.
> >
> > David
> >
> No david because the program and controller board normally cost this,
> so in effect you are geeting a free 4 axis setup.
> Now if you would like to build me a free 4 axis setup then I'll send
> you my postal address.<bg>
> These Allegro based drivers are quite hard to do for a home shop
> because of the specialised soldering needed so most people, even if
> they are capable, finish up buying of the shelf units like Gecko and
> Larken.
>
> John S.