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'[EE] 3 AXIS STEPPER CONTROLLER'
2009\03\16@095256 by Giles Honeycutt

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I am looking for reference designs for a 3 axis stepper controller.
Also, I might need some help.  This is a contract job I am quoting, and I
don't think I can meet the time frame.
We do not need to do any curves or other CNC type calculations.  They will
operate independent.
If their is a reference design and software that does support CNC G-CODE,
then that would be a great way to start also.

Best regards,
Giles
Offlist: spam_OUTgilesTakeThisOuTspamonecorpsource.com




2009\03\16@102043 by Alan B. Pearce

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>I am looking for reference designs for a 3 axis stepper controller.
>Also, I might need some help.  This is a contract job I am quoting,
>and I don't think I can meet the time frame.

Look at the Stepper Driver boards that James Newton (from this list) sells.
Sorry I don't have his website link. Anyone step in with it?

>If their is a reference design and software that does support CNC
>G-CODE, then that would be a great way to start also.

I don't know if he also has software, but IIRC there is a fair amount of
open source on the web.

2009\03\16@113511 by William \Chops\ Westfield

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On Mar 16, 2009, at 7:20 AM, Alan B. Pearce wrote:

>> I am looking for reference designs for a 3 axis stepper controller.
>> Also, I might need some help.  This is a contract job I am quoting,
>> and I don't think I can meet the time frame.
>
> Look at the Stepper Driver boards that James Newton (from this list)  
> sells.
> Sorry I don't have his website link. Anyone step in with it?

http://www.piclist.com/techref/io/stepper/linistep/index.htm

BillW

2009\03\16@121108 by Tony Smith

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> I am looking for reference designs for a 3 axis stepper controller.
> Also, I might need some help.  This is a contract job I am quoting, and I
> don't think I can meet the time frame.
> We do not need to do any curves or other CNC type calculations.  They will
> operate independent.
> If their is a reference design and software that does support CNC G-CODE,
> then that would be a great way to start also.


Interface?  Size?  Speed?

Why design?  There's plenty of turn-key solutions on eBay, (controller &
motors).  Typically based on single chip stepper drivers.

Gecko will sell you a controller for various size motors.  See
http://www.hobbycnc.com for a DIY approach (kits & motors).

Most of these use bipolar motors, unipolar is simpler to design for but less
common as the driver chips focus on bipolar.

All these driver use Step & Dir for control, and using the parallel port for
control is the norm.

For software TurboCNC is free, (source code available after licensing), and
runs on a DOS PC.  Mach3 for Windows, or EMC for Linux (uses a custom kernel
for real time control).

Tony

2009\03\16@161038 by Peter Restall

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Take a look at EMC2 (http://www.linuxcnc.org).  That's what I'm going to be using
when I (eventually) get my CNC machine up and running.  Looks fantastically
featured - G-CODE generation, editing and all sorts of eye-candy toolpath
stuff too.

Also a nice feature is the Hardware Abstraction Layer (HAL) that allows you
to interface to pretty much any hardware you want without resorting to writing
your own drivers.

Free to download and there's also the emc-users mailing list (which I'm on)
for support - it's a pretty friendly/knowledgeable bunch, with some incredibly
cool kit and impressive expertise between them :)

Regards,

Pete Restall

--- Original Message ---
Date: Mon, 16 Mar 2009 14:20:36 -0000
From: "Alan B. Pearce" <.....Alan.B.PearceKILLspamspam@spam@stfc.ac.uk>
Subject: Re: [EE] 3 AXIS STEPPER CONTROLLER
To: "Microcontroller discussion list - Public." <piclistspamKILLspammit.edu>

>I am looking for reference designs for a 3 axis stepper controller.
>Also, I might need some help.  This is a contract job I am quoting,
>and I don't think I can meet the time frame.

Look at the Stepper Driver boards that James Newton (from this list) sells.
Sorry I don't have his website link. Anyone step in with it?

>If their is a reference design and software that does support CNC
>G-CODE, then that would be a great way to start also.

I don't know if he also has software, but IIRC there is a fair amount of
open source on the web.

2009\03\16@165716 by Michael Algernon

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> On Mar 16, 2009, at 7:49 AM, Giles Honeycutt wrote:
>
> I am looking for reference designs for a 3 axis stepper controller.
> Also, I might need some help.  This is a contract job I am quoting,  
> and I
> don't think I can meet the time frame.
> We do not need to do any curves or other CNC type calculations.  
> They will
> operate independent.
> If their is a reference design and software that does support CNC G-
> CODE,
> then that would be a great way to start also.
>
> Best regards,
> Giles
> Offlist: .....gilesKILLspamspam.....onecorpsource.com

Check out
www.onsemi.com/PowerSolutions/product.do?id=AMIS-30624
www.trinamic.com/tmc/render.php?sess_pid=394
http://tech.groups.yahoo.com/group/turbocnc/

I would be happy to help.
MA

WFT Electronics
Denver, CO   720 222 1309
" dent the UNIVERSE "

2009\03\17@100630 by Giles Honeycutt

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Alan,
Thank you for the info, and William provided the link.  I will look it over.

Best regards,
Giles

{Original Message removed}

2009\03\17@101700 by Giles Honeycutt

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Tony,
Why?  I have been asked to quote it.
Size, .....
Well, the customer is specifying the driver chips & motors he wants
incorporated.  It also has to replace an existing system, so the interface
will be Ethernet, with existing high level commands.

Thank you very much for the info and links you provided.  I will be checking
out both.  Perhaps I can adapt the TURBOCNC to my project, but I really need
the control to be embedded with only high level commands coming from the
Ethernet.  Probably will use PIC or ATMEL for onboard control.

Best regards,
Giles


{Original Message removed}

2009\03\17@102718 by Giles Honeycutt

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Peter,
Thank you for the link.  I looked it over (http://www.linuxcnc.org) and it seems to
be a very cool project, but I am looking for an embedded system.  Perhaps
that will be good for a future project of mine.

Best regards,
Giles

-----Original Message-----
From: EraseMEpiclist-bouncesspam_OUTspamTakeThisOuTmit.edu [piclist-bouncesspamspam_OUTmit.edu]On Behalf
Of Peter Restall


2009\03\17@134603 by Michael Algernon

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Consider the SheevaPlug for embedding your CNC support.
www.marvell.com/products/embedded_processors/developer/kirkwood/sheevaplug.jsp
$99 for dev kit
MA


 WFT Electronics
Denver, CO   720 222 1309
" dent the UNIVERSE "


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