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stevenvanrosendaal
(@stevenvanrosendaal)
Active Member
Mesh Bed Leveling failing

Hey guys!

I am trying to get my Prusa MK3 to work, but i am experiencing some troubles. Self test went by smoothly, so my components should be all right, and after fiddling with the PINDA probe, the XYZ calibration also ended successfully. Now when i do a first layer calibration, i noticed that my lines on the right side were rounder, while on the left side they were flattened. When i changed the settings around some more, i got acceptable results. Then when i try to print, and the printer does its Mesh Bed Leveling sequence, it fails at the bottom right spot (point 3) every time.

"Bed leveling failed, sensor didn't trigger. Debris on nozzle? Waiting for reset."

I tried a bunch of stuff to try and solve this, and doing the above process every time i changed something:

- Retest my entire printer from the wizard, failed
- Rescrewed the screws that hold the bed down, failed
- Readjusted the PINDA probe by manually leveling the nozzle on the bed, then sticking a zip-tie underneath it, press it down gently and then reapplying the screw
- Updated the firmware to 3.1.1 (February 5th)
- Set bed level offset right to its maximum value, and left to a halfway minimum to compensate for the thickness on either side.

However nothing seems to work, it keeps failing at precalibrating point 3 just after setting the first layer calibration (Which usually does complete the Mesh Bed Leveling process).

I am at a loss here guys! What more can i do to solve this?

Napsal : 17/02/2018 5:40 pm
reid.b
(@reid-b)
Reputable Member
Re: Mesh Bed Leveling failing


- Updated the firmware to 3.1.1 (February 5th)
- Set bed level offset right to its maximum value, and left to a halfway minimum to compensate for the thickness on either side.

What do you mean by "set bed level offset right to its maximum value"?

I would check that both your Z-Axis screws are turning equally smoothly. Was this a kit or a pre-built?

Napsal : 17/02/2018 6:57 pm
stevenvanrosendaal
(@stevenvanrosendaal)
Active Member
Topic starter answered:
Re: Mesh Bed Leveling failing



- Updated the firmware to 3.1.1 (February 5th)
- Set bed level offset right to its maximum value, and left to a halfway minimum to compensate for the thickness on either side.

What do you mean by "set bed level offset right to its maximum value"?

I would check that both your Z-Axis screws are turning equally smoothly. Was this a kit or a pre-built?

Sorry i meant bed level correction. You can edit the Left, Right, Front and Rear hight offset there. It goes from -50um to 50um. So i set the left offset to -20 and right offset to 50, but that did nothing for me.

However you are onto something. I did notice that my left Z-Axis motor reqires a bit more force to turn then the right one. But it does not seem to have anything to do with the assembly. Can it be that that motor itself is defective?

I am using a kit.

Napsal : 17/02/2018 7:07 pm
Brock
(@brock)
New Member
Re: Mesh Bed Leveling failing

Did you ever figure out a resolution? I'm having the exact same issue at calibration point 3. Everything else checks out on self test and x,y, z calibration, but cant get past bed mesh levels edling point 3.

Napsal : 19/05/2018 8:25 pm
sebastian.k6
(@sebastian-k6)
New Member
Re: Mesh Bed Leveling failing

Same here. Has anyone figured out the solution?

Napsal : 16/06/2018 10:07 am
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