Going to dry out my filament in a food dehydrator, I think a few hours should do it. (a second hand dehydrator is cheaper than a roll of filament $20-30) I’ve noticed some ‘popping’ noises, as steam is building up and trying to escape the print job.
Hmm. Would it be practical and effective to blow hot air over the filament as it approaches the extruder? I’m thinking you could find a source of heat pretty close by.
Or would that pre-heat the filament too much?
@Eric_S_Harris That might cause issues with feeding if the plastic is too soft. Also, you don’t want to accidentally overheat the extruder motor.
@Josef_Prusa had some success using a feed tube with nichrome wrapped around it to remove some of the moisture from polycarbonate before putting it through his extruder.
Toss the rolls in the oven on low-as-it-can-go with the door cracked. That’s what I did and it worked well.