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Prusa I3X A4988 pot settings

http://geeetech.net/forum/viewtopic.php?f=17&t=17863

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Prusa I3X A4988 pot settings

Posted: Fri Jun 10, 2016 1:30 pm
by rohan
Hi guys,

I have a Geeetech prusa I3X and I recently messed up the potentiometer setting on my stepper drivers (A4988)

I have not been tinkering with the pot settings and have not been able to get it right. My prints are turning out slightly skewed.

The sensor resistor is 200 Ohms, does any one know what Vref values I should be using?

Cheers

Re: Prusa I3X A4988 pot settings

Posted: Fri Jun 10, 2016 4:20 pm
by William
rohan wrote:Hi guys,

I have a Geeetech prusa I3X and I recently messed up the potentiometer setting on my stepper drivers (A4988)

I have not been tinkering with the pot settings and have not been able to get it right. My prints are turning out slightly skewed.

The sensor resistor is 200 Ohms, does any one know what Vref values I should be using?

Cheers
Hi,rohan
I'm sorry for not finding the Vref pin,here is the pin figure of the A4988 module:
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