Dry box spool holder

A hacky cereal box based drybox filament holder which accommodates a 2kg spool.

The brackets mount with 4x countersunk M3 screws through holes drilled in the sides. The rollers use 608 bearings. Drill a hole in the front at the appropriate height and thread in a PTFE tube coupling.

Drop the roller assembly into the box with the roller in place, and the brackets hold it in position.

Fits this box: [https://www.amazon.com/gp/product/B07J16H8Q7/](https://www.amazon.com/gp/product/B07J16H8Q7/)