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The airvents on top of the printer are important:
OPEN slots
when using PLA, PETG, or TPU.
CLOSE slots
when using ABS, PC or Nylon
Closing the slots retains more heat in the printer, which is beneficial
for higher temperature materials as it reduces warping. However
closing the slots when using PLA will most likely cause filament jams
because the extruder can overheat.
6.2 Opening/Closing the air vents
