If you read that whole post, you'll share everyone's disappointment.
Apparently there is a bug in that chip that causes incorrect microstep
angles and Allegro is unwilling to admit it or correct it.

>Len



-----Original Message-----
From: BRIAN GLACKIN [mailto:[EMAIL PROTECTED] 
Sent: Sunday, December 07, 2008 10:48 AM
To: Enhanced Machine Controller (EMC)
Subject: Re: [Emc-users] microstepping stepper power drive

Perhaps this discussion will offer something to you.

*New Allegro Bipolar Stepper Driver A3986*
http://cnczone.com/forums/showthread.php?t=24699

Opening post suggests 10A at 50V.  Have not had the time to read the entire
set of posts.

On Sun, Dec 7, 2008 at 10:23 AM, Ian W. Wright
<[EMAIL PROTECTED]>wrote:

>  >>How many wires do your motors have?
>  > >Len
>
> One has 8, the other 6 so it doesn't really mater whether
> the drive is unipolar or bipolar.
>
> --
> Best wishes,
>
> Ian
> ____________
> Ian W. Wright
> Sheffield  UK
>
> "The difference between theory and practice is much smaller
> in theory than in practice..."
>
>
>
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