A really simple vertical extender for my Elite Gormet dehydrator that I use for my filament. Print out the file 4 times and then assemble it with glue.  This matches the below dehydrator and can stack as high as you want, allowing you to dry 2 or more spools of filament at once.  

Dehydrator - Amazon.com: Elite Gourmet EFD319BNG Food Dehydrator, 5 BPA-Free 11.4" Trays Adjustable Temperature Controls, Jerky, Herbs, Fruit, Veggies, Dried Snacks, Black and Grey, 5 Trays: Home & Kitchen

This may also work on any dehydrator with an outer ring diameter of 289mm

Other Materials Needed

• Superglue/Crazy Glue

Recommended Filament - PETG

Print Settings

• 0.3mm layer height