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PostPosted: Sun Mar 12, 2017 8:18 pm 
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I have problems with my vertex. After printing a while, the x-axis doesn´t change, so the printer just prints continously in the y-axis forward and back and forward and so on at the same x-axis perimeter. Could it be possible, that the x-axis driver board is damaged or what could it be?


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PostPosted: Sun Mar 12, 2017 10:48 pm 
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Check the pulley on the motor.
Make sure the screw is tight.


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PostPosted: Tue Mar 14, 2017 7:56 am 
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I did. It is not a mechanical problem. Any suggestion else?


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PostPosted: Tue Mar 14, 2017 2:00 pm 
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Try swapping the driver between the X and Y to see if the problem moves.


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PostPosted: Wed Mar 15, 2017 10:52 am 
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And while you're at it, check the driver reference voltage (have a look at the Wiki).


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PostPosted: Mon Mar 20, 2017 2:18 pm 
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Thanks a lot, Raby. Since I built the kit, I forgot the driver voltage adjustment.
I checked now the driver voltages and I think that over the time (I have the printer now 2 years), maybe through vibrations, the potentiometers changed their values. Otherwise I can not explain, why the voltage changed.
The extruder motor driver even was at 1,3 V! Wonder that it still worked. I adjusted it again in the demanded ranges.
Now the printer runs again very stable.
That proves again how useful this forum is.


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