On Sunday 07 December 2008, Len Shelton wrote:
>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.
>
Thats a bummer. Maybe they used a funkity motor
Ian W. Wright wrote:
> Can anyone give me a clue as to whether or not it is
> possible to increase the power handling of any of the
> microstepping stepper driver circuits available on the web.
>
I am quite confident you could change the power transistors and current
sense resistors on the G
Thanks all, I had missed that thread on 'the Zone' - I
don;t get time to trawl through it very often. I'm excited
by Marriss's latest offer on that thread though and hope
there is some way I can tap into it. I think I'll also have
a play with Emory's ideas and see if I can fry a few 3055's
On Sunday 07 December 2008, BRIAN GLACKIN wrote:
>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.
>
That
, 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=246
On Sun, 7 Dec 2008, Len Shelton wrote:
> Date: Sun, 7 Dec 2008 10:55:50 -0600
> From: Len Shelton <[EMAIL PROTECTED]>
> Reply-To: "Enhanced Machine Controller (EMC)"
>
> To: "'Enhanced Machine Controller (EMC)'"
> Subject: Re: [Emc-use
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 su
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 PROTEC
>>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..."
How many wires do your motors have?
>Len
-Original Message-
From: Ian W. Wright [mailto:[EMAIL PROTECTED]
Sent: Sunday, December 07, 2008 8:43 AM
To: Emc-users@lists.sourceforge.net
Subject: [Emc-users] microstepping stepper power drive
Can anyone give me a clue as to whether or
Can anyone give me a clue as to whether or not it is
possible to increase the power handling of any of the
microstepping stepper driver circuits available on the web.
There are quite a few designs about such as the PIC
microstep project based on PIC chips but they are all
limited to about 2A p
11 matches
Mail list logo
