DIY Close Loop Control Filament Dryer

When printing with materials such as Nylon, PETG, or Ninjaflex, one can find that some of these filaments can be hygroscopic (absorbs water.. in this case, from the atmosphere). Once water is absorbed into filament, the print quality and ease of printing can plummet and make for some pretty miserable prints.

One way to dry filament is to put it in an oven. This is great if you want to spend the money on a food dehydrator or your spouse doesn't mind you putting plastic into your nice new kitch