Re: EMC 2.2.13 steppermod working

["Darrell Gehlsen" <darrell-at-machinemaster.com>]

Tim,
I am using freqmod on a K6 II 400 with the period set at 12. The large
steppers on a Bridgeport do not tolerate much in the way of step pulse
variation. When you feed them a clean signal you can easily get 120 IPM.
Darrell

----- Original Message -----
From: Tim Goldstein <tgoldste-at-mlh-services.com>
To: Multiple recipients of list <emc-at-nist.gov>
Sent: Monday, March 27, 2000 6:28 AM
Subject: RE: EMC 2.2.13 steppermod working


>
> getting freqmod running will up you MAX_VELOCITY considerably if you run
on
> a fast machine. It looks like you need something in the Pentium II, AMD
K6,
> or AMD Athalon above a 350 (this is based upon the period settings I have
> heard of and the system they are on).
>
> Tim
> [Denver,  CO]
>
>
> > -----Original Message-----
> > Clint,
> > I am using the 5.2 kernel and the Feb 29 build and with the
> > Default and Max
> > acceleration values set at 1.5 I can get at least 225 ipm on the scope.
> > What I have found actually running a Bridgeport is that about the
> > best I can
> > get is about 20 ipm before jitter stalls the steppers.
> > It really looks like we will have to do some kind of hardware signal
> > conditioning to stabilize the pulse train to get anything faster.
> > Darrell
> >
>
>