[Lab] [ORE_bits] stepper drivers

[Darcy Whyte]

That's a great idea but surely there must already be an easy design out
there using inexpensive parts.






On Tue, Jul 12, 2011 at 12:25 PM, Michael <krazatchu at hotmail.com> wrote:

> **
> You could design your own driver, I will donate/supply the controller ic
> and passives ....
>
> I have a bunch of these parts taking up space that I may never get around
> to using..
> It would be great to see them put to a good cause... They are AMIS 30512...
> I also have a variety of power stages: MC33932,  L293DD, L298P, ULN2803
> that could be used with a mcu to make a programmable stepper controller...
>
> If someone is willing to design one for the purpose of donating it, I'm all
> in on supplying the parts ...
> I'll even toss in an extra set of parts for whoever designs it, to make one
> for themselves...
> Disclaimer: As long as the parts used are parts I have in stock, I have a
> good bit of kit on hand, mostly smd...
>
> Michael
> http://NoMiDesign.net/
> http://krazatchu.ca/
>
>
> On 7/12/2011 11:58 AM, Darcy Whyte wrote:
>
>
>
> I think an arduino drawbot <http://mambohead.com/2011/07/random-drawbot/> is
> a total blast. I want to make more of them and am looking at the different
> ways of controlling steppers with the arduino.
>
> *Stepper Drivers*
>
> Easydriver<http://danthompsonsblog.blogspot.com/2010/05/easydriver-42-tutorial.html> is
> one mechanism. They are about 15.00 each at Robotshop. So that comes out to
> 30.00 which isn’t too terrible. You can even run three<http://youtu.be/migN744l640> of
> these if you want to do cnc <http://youtu.be/bBsjsoVXBNA>. That comes out
> to 75.00 to run a three axis CNC including the Arduino. Not too bad for a
> small hobby project. But for drawbot that’s a bit steep.
>
> The Adafruit motor shield<http://www.robotshop.com/ca/adafruit-motor-shield-kit-arduino.html> is
> a better deal for a drawbot. It’s only 20.00 and it can run two servos and
> either two steppers or four DC motors. Way more bang for the buck.
>
> What are good ways to get the price down even further?
>
>
>
>
>
>
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