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Prusa Mini+ X-axis test is failing  

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bvsemmer
(@bvsemmer)
New Member
Prusa Mini+ X-axis test is failing

Hi Prusa!

I have just finished my assembly of my Prusa Mini+. The guidelines were extremely clear and well organized, really well done! Thank you for that!

 

Though, during my first calibration run I get a failure on the X-axis.

 

I did some research on the forums and I checked the following already:

- The belt on the X-axis is not too tense. I did several runs with varying stiffness, no difference.

- I cannot see any wires between the print head and the Z-axis.

- There is enough slack on the wires leading to the print head. The head can reach all the way to the end.

- I hear a small 'tud' when the print head reaches the beginning of the X-axis (touching the Z-axis) and the far-end of the X-axis. But I assume that is normal. It does not sound strange or out of place, at least.

- It looks like the X-axis is straight and in-line, like it's supposed to be.

 

What I see happening when the test is running:

- The print-head moves three times from the start to the far-end.

- Every cycle I hear the motor speeding up a bit, I think that is intended and part of the test cycle.

- After the third run, when the print head reaches the beginning again, the error is shown.

 

What else can I do to try and troubleshoot this issue?

thanks,

Bert.

Posted : 02/05/2021 2:01 pm
bvsemmer
(@bvsemmer)
New Member
Topic starter answered:
RE: Prusa Mini+ X-axis test is failing

OK, I think I found the problem. I disassembled the print head again and I think the drive build was not inserted far enough.Maybe the length was a bit too long, for the test to succeed.

The X-axis test succeeds now! But now the Z-axis test fails! 🤡 

Time for some more troubleshooting then

Posted : 02/05/2021 3:12 pm
bvsemmer
(@bvsemmer)
New Member
Topic starter answered:
RE: Prusa Mini+ X-axis test is failing

OK, Z-axis is also succeeding now. I had the same issue as here: https://forum.prusa3d.com/forum/assembly-and-first-prints-troubleshooting/prusa-mini-calibration-z-axis-fail/

(Some bolts fixed too hard)

Posted : 02/05/2021 3:23 pm
Isaac Wines
(@isaac-wines)
Member
RE: Prusa Mini+ X-axis test is failing

I am experiencing the same issue you had with the X-axis being out of range. According to my logs, the distance is 192.2226, which is outside the tolerance of 192.0000. What exactly did you have to do to fix it?

Posted : 29/07/2025 2:31 am
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