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Build Your Own SLA/SLS A forum dedicated to helping you build your own SLA/SLS-based 3d printer 2016-02-24T19:19:44-04:00 http://www.buildyourownsla.com/forum/feed.php?f=19&t=4123 2016-02-24T19:19:44-04:00 2016-02-24T19:19:44-04:00 http://www.buildyourownsla.com/forum/viewtopic.php?t=4123&p=14330#p14330 <![CDATA[Re: Two stepper drivers burned already!]]>
I also noticed that polulu sends drv's set for 3+ amps stock ... which causes problems as you might guess :D

Statistics: Posted by goopyplastic — Wed Feb 24, 2016 7:19 pm

]]> 2016-02-23T03:43:48-04:00 2016-02-23T03:43:48-04:00 http://www.buildyourownsla.com/forum/viewtopic.php?t=4123&p=14311#p14311 <![CDATA[Re: Two stepper drivers burned already!]]>
A good explanation is on this page:
https://www.pololu.com/product/1182

Sub-section "Current limiting".

Statistics: Posted by radi2k — Tue Feb 23, 2016 3:43 am

]]> 2016-02-22T10:28:10-04:00 2016-02-22T10:28:10-04:00 http://www.buildyourownsla.com/forum/viewtopic.php?t=4123&p=14308#p14308 <![CDATA[Re: Two stepper drivers burned already!]]> SD8825 is hard to find, I am looking for an alternative.
But connections for those drivers are slightly different:


The SureStepr SD has VDD connector and Pololu DRV has Fault connector on its place.

Statistics: Posted by DanOrgan — Mon Feb 22, 2016 10:28 am

]]> 2015-10-01T15:41:16-04:00 2015-10-01T15:41:16-04:00 http://www.buildyourownsla.com/forum/viewtopic.php?t=4123&p=12694#p12694 <![CDATA[Re: Two stepper drivers burned already!]]> Statistics: Posted by Scatterplot — Thu Oct 01, 2015 3:41 pm

]]> 2015-09-29T12:02:31-04:00 2015-09-29T12:02:31-04:00 http://www.buildyourownsla.com/forum/viewtopic.php?t=4123&p=12662#p12662 <![CDATA[Re: Two stepper drivers burned already!]]>
Are you adjusting the vref potentiometer on the allegro drivers? They may be set too high by default. The motors are rated at 1.2amp but you can try setting an amperage of 1amp on the drivers. They shouldn't be more than on the high end of warm by the touch. It's possible that they are burning up from too much heat / too high of an amperage. DRV8825's are less likely to cook.

Statistics: Posted by goopyplastic — Tue Sep 29, 2015 12:02 pm

]]> 2015-09-29T06:19:26-04:00 2015-09-29T06:19:26-04:00 http://www.buildyourownsla.com/forum/viewtopic.php?t=4123&p=12653#p12653 <![CDATA[Two stepper drivers burned already!]]> Statistics: Posted by nalmeida — Tue Sep 29, 2015 6:19 am

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