Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:4729765.

This is a remix of nikutama05's filament storage box that holds 4 spools of filament with these changes:

• Designed for US-based 5/16 threaded rods. You need 2 of these that are each 12 inches long.
• Compatible with inexpensive 608 bearings (as used in skate/skateboard wheels). You need 4 bearings per spool (12 bearings total).
• Holes were cut in the very large side supports to significantly reduce filament use, while maintaining their strength.
• I added a new model "plugs" that are various heights to slide into the side supports and hold the rods tight and press the side supports against the storage box walls. This keeps the rods from shifting around.

You'll need to print:

• 2x Base2
• 32x Clip
• 16x Guide