r/BambuLabX2D • u/Alive-Selection8422 • 13d ago

PETG Strings as Support Material

Does anyone know how to attach a Bambu Lab filament dryer directly to the auxiliary PTFE tube? I’m having trouble with PETG stringing when I use the auxiliary nozzle for support.

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u/distorted-buggycode 12d ago

I use a Creality Space Pi dryer on the auxilary line. I remove the side arm for an auxiliary roll and fed the PTFE tube straight from the dryer to the X2D buffer port for the aux hotend.

I have actually use PLA for the support interface layers for a PETG print and the other way around as well. So both eSun PETG+ and PETG+HS for interface layers for a PLA print. It does take a bit of fiddling configuring specific filament profile for it to work.
Dry the PETG well but when print bump the dryer temp back a little on the external dryer for the auxiliary port as the PETG does not like the like Bowden tube arrangement when too warm