Horizontal Filament Spinner for Dehydrator

UPDATE 20190706: got rid of the unneeded lip and generated an STL for 90mm to fit on the shelf for storage. Discovered the outer shell isn't necessary so added that to the to-do list.

This is a remix of my horizontal spool holder/spinner (https://www.thingiverse.com/thing:3128111), but customized to fit inside a common food dehydrator, for a DIY PrintDry clone. I basically sized everything properly, and added a hole down the center for the air column.

The idea is that you can print from a