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</o:shapelayout></xml><![endif]--></head><body bgcolor=white lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>As a non-technical person my suggestion may be way off base, but perhaps working with the guts of a scanner would fit the bill. Motor and belt already to go.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Bob<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'> Lab [mailto:lab-bounces@artengine.ca] <b>On Behalf Of </b>Wesley Ellis<br><b>Sent:</b> Tuesday, November 05, 2013 7:28 PM<br><b>To:</b> Michael Grant<br><b>Cc:</b> lab<br><b>Subject:</b> Re: [Lab] Help choosing a stepper motor<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal style='margin-bottom:12.0pt'>No, the stepper motor is going to drive a pulley to rotate a platform<o:p></o:p></p><div><p class=MsoNormal>On 11/4/2013, 9:52 PM, Michael Grant wrote:<o:p></o:p></p></div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><div><div><div><p class=MsoNormal style='margin-bottom:12.0pt'>Does the mass need to be lifted against gravity?<o:p></o:p></p></div><p class=MsoNormal>Michael<br>--<o:p></o:p></p></div><p class=MsoNormal><a href="http://krazatchu.ca/">http://krazatchu.ca/</a><o:p></o:p></p></div><div><p class=MsoNormal style='margin-bottom:12.0pt'><o:p> </o:p></p><div><p class=MsoNormal>On Mon, Nov 4, 2013 at 9:45 PM, Wesley Ellis <<a href="mailto:tahnok@gmail.com" target="_blank">tahnok@gmail.com</a>> wrote:<o:p></o:p></p><p>The mass isn't very heavy (probably 500g) and I don't need the resolution of something like a cnc or 3d printer motor and speed isn't super important<o:p></o:p></p><div><div><div><p class=MsoNormal>On Nov 4, 2013 9:36 PM, "Michael Grant" <<a href="mailto:michael@krazatchu.ca" target="_blank">michael@krazatchu.ca</a>> wrote:<o:p></o:p></p><div><div><div><div><div><div><p class=MsoNormal>The easy driver is for bipolar only, it's a good choice for small steppers (NEMA17). <o:p></o:p></p></div><div><p class=MsoNormal><br>There are many choices on eBay as well, about $11 will get you a serious CNC driver for larger steppers (NEMA23).<br><a href="http://www.ebay.ca/itm/Good-CNC-Router-Single-1-Axis-Controller-Stepper-Motor-Drivers-TB6560-3A-New-/251369064893?pt=LH_DefaultDomain_0&hash=item3a86c389bd" target="_blank">http://www.ebay.ca/itm/Good-CNC-Router-Single-1-Axis-Controller-Stepper-Motor-Drivers-TB6560-3A-New-/251369064893?pt=LH_DefaultDomain_0&hash=item3a86c389bd</a><o:p></o:p></p></div><p class=MsoNormal><o:p> </o:p></p></div><p class=MsoNormal>What resolution and speed are you looking to achieve? <o:p></o:p></p></div><p class=MsoNormal style='margin-bottom:12.0pt'>The mass you are rotating, is it heavy and will you require fast start and stop?<o:p></o:p></p></div><p class=MsoNormal>Michael Grant<br>--<o:p></o:p></p></div><p class=MsoNormal><a href="http://krazatchu.ca/" target="_blank">http://krazatchu.ca/</a><o:p></o:p></p></div><div><p class=MsoNormal style='margin-bottom:12.0pt'><o:p> </o:p></p><div><p class=MsoNormal>On Mon, Nov 4, 2013 at 9:22 PM, Wesley Ellis <<a href="mailto:tahnok@gmail.com" target="_blank">tahnok@gmail.com</a>> wrote:<o:p></o:p></p><p class=MsoNormal>Hey all,<br><br>I'm pretty new to electronics and I'm having trouble choosing a stepper<br>motor for a project I'm working on.<br><br>I'm ordering from robot shotp, and it looks like this EasyDriver board<br>(<a href="https://secure.robotshop.com/ca/en/sfe-easydriver-bipolar-stepper-motor-driver.html" target="_blank">https://secure.robotshop.com/ca/en/sfe-easydriver-bipolar-stepper-motor-driver.html</a>)<br>will let me control whichever motor I end up choosing, but the number of<br>motors on robotshop is pretty intimidating.<br><br>I'm going to be spinning a small platform so I don't need a lot of<br>power. Basically, I'm wondering whether I need a bipolar or unipolar<br>motor? What kind of voltage? Amperage? Any help would be appreciated<br><span style='color:#888888'><br>Wesley<br><br></span><br>_______________________________________________<br>Lab mailing list<br>1. subscribe <a href="http://artengine.ca/mailman/listinfo/lab" target="_blank">http://artengine.ca/mailman/listinfo/lab</a><br>2. then email <a href="mailto:Lab@artengine.ca" target="_blank">Lab@artengine.ca</a> to send your message to the list<o:p></o:p></p></div><p class=MsoNormal><o:p> </o:p></p></div></div></div></div></div><p class=MsoNormal><o:p> </o:p></p></div></blockquote><p class=MsoNormal><o:p> </o:p></p></div></body></html>