RE: digital servo controller to offload the Parallel Port?

["j.guenther" <vze2z45u-at-verizon.net>]

What Les said is true but it would be really nice to have a lower cost
solution to servo control with EMC than the STG card.  Before you all flame
me, I know that you can use Gecko 320 / 340 drivers and the there is PPMC
from Jon Elson and maybe some other solutions.  IMHO for home shop use the
STG cards are really cost prohibitive, at least in my shop.

John Guenther
'Ye Olde Pen Maker'
Sterling, Virginia

> -----Original Message-----
> From: emc-at-nist.gov [emc-at-nist.gov]On Behalf Of John Griessen
> Sent: Thursday, December 19, 2002 10:39 AM
> To: Multiple recipients of list
> Subject: Re: digital servo controller to offload the Parallel Port?
>
>
>
> Les,
>
> I understand that emc uses the low cost of the mass produced PC to great
> effect.   It just seemed Till knew where a performance limit was when
> using the parallel port, and I was asking.  I have not played with an
> emc driven machine yet.  Is there anyone in  Austin TX using one?
>
> John Griessen
> On Wed, 2002-12-18 at 16:30, Les Watts wrote:
> >
> > Hi, John
> >
> > The whole idea with EMC is really host signal processing.... the
> > computer cpu does all the servo loop calcs in a real time
> > operating system. Even a very slow old commodity computer has
> > enough processing power to do a high performance job. So it does
> > not need outboard processors.
>
>
> > Les
> > Leslie Watts
> > L M Watts Furniture
>
>
>
>