Insulating lid for filament baking

If you have a large heated bed and want to bake moisture out of your filament, this should do the trick!

I printed this with a brim, the lid surface was made specifically to mitigate film stress so bed adhesion shouldn't be an issue.

Low infill here is important, 10% allows for decent filament bridging and captures a lot of air, making for a decent R value insulator. With my heated bed set to 80 C I measured the air inside the lid to be 72 C (after an hour).

This was designed to fit filament reels from Atomic filament, the inner diameter is 207 mm and the height is 80 mm, if you have larger reels just increase the size of the print. I don't plan to make a piece-wise printable version of this lid as it only seems practical to use with large heated beds.