Sorry, you are correct. It was specifically the cheap chinese driver boards available on ebay.<div><br></div><div>Tom</div><div><br><br><div class="gmail_quote">On Sat, May 28, 2011 at 12:12 AM, Sam Roesch <span dir="ltr"><<a href="mailto:samroesch@gmail.com">samroesch@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">From that forum post it sounds like the problem is with the<br>
implementation, not the chips themselves.<br>
<div><div></div><div class="h5"><br>
On Friday, May 27, 2011, Paul & Andrea Mumby <<a href="mailto:themumbys@gmail.com">themumbys@gmail.com</a>> wrote:<br>
> I haven't used the 3986 before, only the 4983, and I run them at 16th step microstepping, and have never had a problem (nice and smooth and quiet). They do need good active cooling though if your getting them up around the max of 2A per phase. They have internal thermal protection, but when the driver starts cutting in and out due to overheat it kind of ruins whatever it is your trying to do with it...<br>
><br>
> - Paul<br>
><br>
> On Fri, May 27, 2011 at 4:04 PM, krazatchu . <<a href="mailto:krazatchu@hotmail.com">krazatchu@hotmail.com</a>> wrote:<br>
><br>
><br>
><br>
><br>
><br>
><br>
> I think it was the Allegro A3986 that had issues with micro stepping...<br>
><br>
> Michael<br>
><br>
> From: <a href="mailto:tom.i.burns@gmail.com">tom.i.burns@gmail.com</a><br>
> Date: Fri, 27 May 2011 15:59:46 -0400<br>
> Subject: Re: [Lab] CNC driver IC<br>
> To: <a href="mailto:samroesch@gmail.com">samroesch@gmail.com</a><br>
> CC: <a href="mailto:krazatchu@hotmail.com">krazatchu@hotmail.com</a>; <a href="mailto:lab@artengine.ca">lab@artengine.ca</a><br>
><br>
> Aren't those the chips that are generally regarded as being low-quality, problematic, and people typically suggest to avoid? It was specifically in reference to the cheap driver boards on ebay if I remember what I read on CNC zone.<br>
><br>
><br>
><br>
> Cheers,Tom<br>
><br>
> On Fri, May 27, 2011 at 3:56 PM, Sam Roesch <<a href="mailto:samroesch@gmail.com">samroesch@gmail.com</a>> wrote:<br>
><br>
><br>
><br>
> A whole back I posted some tb6560 stuff on my website:<br>
> <a href="http://www.samroesch.blogspot.com/search/label/stepper%20driver" target="_blank">www.samroesch.blogspot.com/search/label/stepper%20driver</a><br>
><br>
> On Friday, May 27, 2011, Michael <<a href="mailto:krazatchu@hotmail.com">krazatchu@hotmail.com</a>> wrote:<br>
>> Someone asked me last night what the driver chip was for the stepper drivers commonly found on eBay was...<br>
>> An eBay search for "3 axis stepper driver" reveals that most of them are based on the Toshiba TB6560...<br>
>><br>
>> Michael<br>
>><br>
>><br>
>> _______________________________________________<br>
>> Lab mailing list<br>
>> <a href="mailto:Lab@artengine.ca">Lab@artengine.ca</a><br>
>> <a href="http://artengine.ca/mailman/listinfo/lab" target="_blank">http://artengine.ca/mailman/listinfo/lab</a><br>
>><br>
><br>
> _______________________________________________<br>
> Lab mailing list<br>
> <a href="mailto:Lab@artengine.ca">Lab@artengine.ca</a><br>
> <a href="http://artengine.ca/mailman/listinfo/lab" target="_blank">http://artengine.ca/mailman/listinfo/lab</a><br>
><br>
><br>
><br>
> _______________________________________________<br>
> Lab mailing list<br>
> <a href="mailto:Lab@artengine.ca">Lab@artengine.ca</a><br>
> <a href="http://artengine.ca/mailman/listinfo/lab" target="_blank">http://artengine.ca/mailman/listinfo/lab</a><br>
><br>
><br>
><br>
><br>
<br>
_______________________________________________<br>
Lab mailing list<br>
<a href="mailto:Lab@artengine.ca">Lab@artengine.ca</a><br>
<a href="http://artengine.ca/mailman/listinfo/lab" target="_blank">http://artengine.ca/mailman/listinfo/lab</a><br>
</div></div></blockquote></div><br></div>