That&#39;s a great idea but surely there must already be an easy design out there using inexpensive parts.<div><br></div><div><br clear="all"><br><br>
<br><br><div class="gmail_quote">On Tue, Jul 12, 2011 at 12:25 PM, Michael <span dir="ltr">&lt;<a href="mailto:krazatchu@hotmail.com">krazatchu@hotmail.com</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">

<u></u>

  
    
  
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    You could design your own driver, I will donate/supply the
    controller ic and passives ....<br>
    <br>
    I have a bunch of these parts taking up space that I may never get
    around to using..<br>
    It would be great to see them put to a good cause... They are AMIS
    30512...<br>
    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...<br>
    <br>
    If someone is willing to design one for the purpose of donating it,
    I&#39;m all in on supplying the parts ...<br>
    I&#39;ll even toss in an extra set of parts for whoever designs it, to
    make one for themselves...<br>
    Disclaimer: As long as the parts used are parts I have in stock, I
    have a good bit of kit on hand, mostly smd...<br>
    <br>
    Michael<br>
    <a href="http://NoMiDesign.net/" target="_blank">http://NoMiDesign.net/</a>
    <br>
    <a href="http://krazatchu.ca/" target="_blank">http://krazatchu.ca/</a>
    <br><div><div></div><div class="h5">
    <br>
    <br>
    On 7/12/2011 11:58 AM, Darcy Whyte wrote:
    </div></div><blockquote type="cite">
      <span>†</span>
      
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                  <p>
                    I think an†<a title="Random
                      Drawbot!" href="http://mambohead.com/2011/07/random-drawbot/" style="color:rgb(54, 93, 160);font-weight:bold;text-decoration:none" target="_blank">arduino
                      drawbot</a>†is a total blast. I want to make more
                    of them and am looking at the different ways of
                    controlling steppers with the arduino.</p>
                  <p><strong>Stepper Drivers</strong></p>
                  <p>
                    <a href="http://danthompsonsblog.blogspot.com/2010/05/easydriver-42-tutorial.html" style="color:rgb(54, 93, 160);font-weight:bold;text-decoration:none" target="_blank">Easydriver</a>†is
                    one mechanism. They are about 15.00 each at
                    Robotshop. So that comes out to 30.00 which isnít
                    too terrible. You can even run†<a href="http://youtu.be/migN744l640" style="color:rgb(54, 93, 160);font-weight:bold;text-decoration:none" target="_blank">three</a>†of these if you
                    want to do†<a href="http://youtu.be/bBsjsoVXBNA" style="color:rgb(54, 93, 160);font-weight:bold;text-decoration:none" target="_blank">cnc</a>. 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 thatís a bit†steep.</p>
                  <p>The Adafruit†<a href="http://www.robotshop.com/ca/adafruit-motor-shield-kit-arduino.html" style="color:rgb(54, 93, 160);font-weight:bold;text-decoration:none" target="_blank">motor
                      shield</a>†is a better deal for a drawbot. Itís
                    only 20.00 and it can run two servos and either two
                    steppers or four DC motors. Way more bang for the
                    buck.</p>
                  <p>What are good ways to get the price down even
                    further?</p>
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