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ultradryan

UM3 NOZZLE 2 always leveled too close to bed after active leveling

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Posted (edited) · UM3 NOZZLE 2 always leveled too close to bed after active leveling

I was doing manual leveling and follow it with active leveling once a time every month, mostly.

 

No matter how i manual level the nozzles, whenever active leveling is done, the printer will always press nozzle 2 too close to buildplate once print is started. 

I can see the nozzle was so close that it got pushed back a bit upwards, so close that filament cannot print out of it.

 

Core 1 will always be fine and well calibrated, while Core 2 will always be too close to bed, after active leveling.

Either the active leveling is buggy, or the result of Z calibration between the 2 nozzles are not memorized by the machine.

 

Is there a fix to this? I am not sure why this is happening.

 

I suspect the distance between Nozzle 1 and Nozzle 2 somehow was wrong.

Now I have to set the machine never to do active leveling, and rely on manual leveling.

 

It will be great if there's a way to manually set the Z distance difference of the two cores in cases like this when the active leveling somehow failed?

 

 

Edited by ultradryan

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