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riccardo18

Ultimaker original x-axis not moving - possible electronics problem

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I'm writing this Question here hoping someone will be able to help me with the fixing process that I'm currently involved in! Last week during a printing session my Ultimarker original unexpectedly stop working, the problem was on the extruder step motor which push the filament from the back and literally is not moving anymore! the first thing I have done was to check if the motor was burn or something similar. so I swap the extruder motor with the x axes one and work fine! then again the x-axes motor into the extruder connector and is not movin! so I decided to check the step driver and they sims to work all well. so the problem must be on the Arduino or on the motherboard! I bought new step driver a new step motor and new Arduino + motherboard, connected all up and nothing, still not working for the same reason! Is just the extruder motor that won't work anymore! Do you guys have some idea or tips to find out what the problem can be or how can be fixed in alternative ways? Your help will be much appreciated and looking forward for some answers thanks a lot Riccardo

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Hi @Riccardo18, thank you for your post.

I'm sure we will be able to help, and I think it was also a good call to get in touch with the professional support we have set up for you. I'm pretty sure they will also be able to help you out! Just make sure, if they get around to find the answer faster, to share it with us for future readers :)

Now, if I understand correctly, your Extruder motor stopped working all of the sudden.

Could you verify whether you have an Ultimaker Original, Ultimaker Original+ or an Ultimaker Original which is upgraded with a heated bed? The electronics are different on each so that is important information. I am guessing you have the regular Ultimaker Original, if not the below information is useless ;)

It can have a variety of reasons, the most common are the motor itself broke, the stepper driver or the electronics. You tested if the motor broke by connecting it to the X-stepper driver and it worked, correct?

This could be easily tested by connecting your E-motor to the X-motor port on your pcb.

If you want to test a motor on the E-motor port; make sure to heat up your head. This may seem irrelevant, but in the firmware your printhead is protected that unless it is heated, you can not move filament. So even though you will command it to move, it won't if your printhead is cold.

So that leaves us with either the stepper driver or the pcb.

I understand you bought a new stepperdriver. Did you buy a similar one as that was initially installed on the pcb? Did you try to swap the E-motor stepperdriver with the X axis stepper driver?

If the X axis doesn't work, with the E-stepper driver, it is clear that the stepper driver is to blame.

If the X-axis works normally, most likely your pcb is defective.

In that case I would get in touch with your reseller and find a solution.

Let me know if you have passed all these steps and if you came to a similar conclusion or if you have any further questions!

Good luck!!

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