Poor Surface Finish

All of a sudden my A1 prints went from perfect to awful. No change on my end as far as I remember. The issue has shown up with multiple filaments and models. I’ve run the calibration for flow and rate with no change to the print quality. I have tried a 0.12 and 0.28 settings.

Thoughts?

Thanks in advance!

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Take alook at these screws:

A1 Mini & A1 Users: Solved: Screw fell out of toolhead - Bambu Lab A1 Series / Bambu Lab A1 mini - Bambu Lab Community Forum

Great thought, but no luck there. I had taken the head apart before this to clear out some filament, but all screws were tight. It almost seems like the bed is shifting when the head changes location. Maybe something on the bed or gantry is loose.

Do de full printer calibration, bed included,. and tell us if there is any change.

What is your filament type and flow rate setting?

It’s over-extruding

Do you have a spare nozzle on hand to test with ?

I have tried eSun PLA+, PolyTerra PLA+, and Bambu PLA. The flow is set to standard, but it does the check before the print. I have an extra nozzle and will give it a try. Thanks

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You can also do a flow rate test or try reduce the flow rate by 2% or 5% However, if everything was working well before, let’s first see how things go with just the nozzle change.

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No luck

  • Replaced nozzle
  • Full recalibration
  • Lubed all 3 axis
  • Ensured the base is stable

It appears that when it has to reposition the nozzle, the join or elevation changes. Pictures attached

Could you try running this flow test to see if the results are consistent each time?

We want to verify whether the extruder consistently stays on target and produces walls of uniform thickness. To test this, print a primitive basic cube twice using vase mode, ensuring that the outer wall line width is set to 0.40 mm in slicer.

Printer Calibration

Flow test