I set up the school with the 5 gal plastic bucket with screw on lid and home-made desiccant packs as described by Wolfie in the “A Strategy for Obtaining Great Prints” thread. It’s a great set up: convenient, compact, and effective atmosphere control. The classroom now has two 3D printers (the Mini I gave them, and a Polar 3D) unfortunately, they don’t use the same diameter filament, so they are going to end up with a stock of both 3mm and 1.75mm
My question is, which types of filament are the most sensitive to moisture in the atmosphere? If controlled atmosphere storage space becomes scarce, are there some types that must be kept in a dry atmosphere, and some for which it doesn’t matter much? They’ll likely be printing with PLA, HIPS, and ABS for now, but may branch out into other types in the future.