After doing a series of prints over a week and a half, I noticed a slight crackle every once in a while, and this seems to come from the extruder. Switched over from the PLA to PETG and after a couple of days the crackle returned.
This is by no means at the rice crispy stage but does seem to indicate that the filament has taken on a bit of moisture from the environment.
Simply placing the reels of filament in a sealed container with dessicant won’t remove any moisture already in the filament - this will only provide a dry environment for storage.
The usual way to cure this, I understand, is to bake the filament in an oven at 40° - 60° for 1 to 2 hours. My question is regarding convection ovens. My gut feeling is that convection should be turned off (i.e. a setting used which doesn’t use convection) as any given humidity would be circulated in the “drying” environment. Perhaps the door should be left ajar even.
Any practical experience from the community in this regard?
Anyone tried a microwave? :shudder: