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What sound frequencies might improve evaporation in 3d printing filaments? (self.askscience)

submitted 1 week ago by j4k3 to c/askscience

10 comments fedilink hide all child comments

Most people know that a microwave works by exciting water molecules, but I'm not interested in the dangers of the high voltage/current of a magnetron. I wonder what might be possible with scrap consumer drivers such as a piezo, speaker drivers, or ultrasonic inducers, preferably at a frequency outside of the core human audible spectrum.

Would an induced vibration in an around 60°C, lightly convective environment, likely significantly increase the evaporation rate of water moisture absorbed within the filament of a spool of consumer grade 3d printing filament such as PLA, PETG, PC, TPU, or Aramid?
Would certain frequencies likely alter performance?

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[–] [email protected] 1 points 1 week ago

There was a tech demo (I think? It's been a while) of an ultrasonic (clothes) dryer. They used sound waves to excite water droplets and extract them from the fabric. I don't think it would be possible with filament.

Maybe a vacuum and gentle heating?