Re: 5-phase steppers

["Barretts" <barrett-at-wasp.net.au>]

Thanks Paul I'll have a look
All the EMC machines I have built so far have two parallel ports
I consider this a minimum requirement!        8-)
I'm getting pretty good at configuring those old ISA IO cards.

Peter.

----- Original Message -----
From: "Paul" <paul.corner-at-tesco.net>
To: "Multiple recipients of list" <emc-at-nist.gov>
Sent: Friday, October 11, 2002 6:50 AM
Subject: Re: 5-phase steppers


>
>
> Hi Peter
>
> No docs available that I know of - The only notes I've come across are
buried
> in the source code. emc/src/emcmot/emcmot.c line 4450 (and 4615) of the
> current CVS source alludes to the possibility of driving a five phase
motor.
> The routines are there for two and four phase drives. Tom Benedict would
> probably be the expert to consult.
>
> One small problem though - You will not have enough output pins on just
one
> parallel port for three axes. If you want X, Y, and Z, a dedicated IO card
> might prove to be the best option.
>
> Regards, Paul.
>
>
> On Thursday 10 Oct 2002 7:09 am, Barretts wrote:
> > Paul, please tell me more about how to exploit those features you
> > mentioned. Is there some dox somewhere?
>