Big Spool holder box (8+ spool)

A spool box door, which can contain 8 (more) coil PLA / ABS 1kg.
It is designed to support multiple kilograms and optimize space in the box.
with the advantage of not having problem to store and preserve the coils away from humidity.
I use 12 screws M3 through to ensure good support, without distorting the delicate walls of the plastic box (but not obliged to use much). PTFE tube is optional, but it works best with.
Need PVC tubs diam 16mm.

this is my first version, the "C" has not been finalized yet, but soon come.