X2D print qualety issue PETG Bambu Lab

What i am doing wrong ?

my setup:

  • latest firmware,
  • latest bamu studio.
  • Bambu Lab PETG / 12h in AMS for dry 65°C
  • Flow dynamic calibration auto and manual
  • clean new Nozzle 0.4mm
  • default 0.2mm print profile
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Is the nozzle clipped in properly?

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Looks like a partial clog because I see a few lines are printed fine with no gaps intermittently, then you get small blobs along the way like in a clog scenario. Also could be an issue with nozzle installation like KYZ said, or maybe a straight up busted extruder.

Is this the aux or main extruder?

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it is the main extruder. i think i found the problem. the extruder was not able to feed the filament with enough force. so i disassambled the extruder and found that the screw fixing the pressure block is without funktion. it turnd out that the pressure plate on the spring is missing from beginning. i opened a support ticket and let you no the result after receiving the missing part.

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received the missing part. since instaled the missing part the x2d is working outstanding.

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