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X-Axis Calibration Failed!  

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jamie.c5
(@jamie-c5)
New Member
X-Axis Calibration Failed!

I recently decided to upgrade to a Bondtech extruder.  Assembled everything just as it should be according to the manual (I've done it twice now just to be sure) and I cannot get past the self-test calibration.  I keep getting the error that the x-axis calibration has failed.  It looks to me like when it's moving during the test, it does not go as far to the right as it actually can.  It stops something like .25"-.38" from its maximum travel and then heads back to the left, where it hits home, stops and then says "failed".  However, if I were to go through the menu to "Move X axis" I can make it go that extra distance.

It's been quite some time since I've run the self-test, so I can't actually remember...is the travel I'm seeing actually normal, and so there's some other issue causing it to fail? Or does it sound like it's not really moving like it should?

Posted : 24/01/2021 2:47 pm
JoanTabb
(@joantabb)
Moderator
RE: X-Axis Calibration Failed!

the mk3 uses stall detection to identify the ends of travel,  So  you could be getting some resistance towards the end of the travel. 

the smooth rods may need a bit of maintenance
https://help.prusa3d.com/en/article/i3-printers-regular-maintenance_2072

regards Joan

 

 

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK...
Posted : 24/01/2021 7:12 pm
jamie.c5
(@jamie-c5)
New Member
Topic starter answered:
RE: X-Axis Calibration Failed!

@joantabb

Thank you! I’ll run through that page and report the results. 

Any thought that the belt tension could be too great? When I checked the stats it said the x belt was something like 205. 

Posted : 24/01/2021 7:17 pm
Peter in Katy
(@peter-in-katy)
Estimable Member
RE: X-Axis Calibration Failed!

1. Don't put too much value on the numbers.  That being said, 205 is too tight.
2.  Since you just redid the extruder, make sure the bolts holding it to the  X- carriage aren't too tight.

Let us know what works!

Posted : 24/01/2021 11:31 pm
JoanTabb
(@joantabb)
Moderator
RE: X-Axis Calibration Failed!

If the belt tension is too great it can cause excess friction in the motor bearings and the idler bearings. 

regards Joan

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK...
Posted : 24/01/2021 11:41 pm
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