Mini Spool 31-130mm for Amazon basic samples

I had several problems for try to print the Amazon Basics Samples, so I did my homework and designed this nice spool for these samples. Why designed? Because usually are sell rounded in a vacum bag and here lies with a 13cm diameter...memorizing the shape.

With this spool, you can fold the filament around the spool without force the "memory" of the filament and no problem with extrusion or that the filament jump out the spool

Has inspection holes, also for block the filament and in internal side hole for start the bending around it.

Is splitted in 2 parts, the simplest is the friction cover for close the spool, no glue.

SIZES:
Internal Hole 31mm
Internal cilinder 130mm
External Diameter 165mm
Height 16.5mm
You can hold from 50g until 90g of filament