Fusion 360 File Added for full customization and fun.
(not good at fusion so the file layout and organization is messy/lazy)

A completely enclosed spool holder, with a desiccant sachet clip.

Spool Compatibility
MasterSpool Version 4
Spool Core ID 52.5mm - 55mm
Spool OD max 205mm
Spool Width max 82mm
Can be used as a wall-mounted spool holder in 2 orientations or free standing on a work-surface.

Print instructions

Notes:
Quality Printing Tips: Pay particular attention to the thin walls of the main body, you want to make sure you match your extrusion width (0.43mm works best with s 0.4mm nozzle) so you get a wall that's just 4 perimeters with no infill. The reason you want to do this is; if your slicer tries to infill inside the thin walls not only will it add loads of print time you end up with a poor-quality print.

1 x 90mm M8 Threaded Rod / Bar 16 x M3 10mm (Windows) 5 x M3 12mm (Core) 4 x M3 14mm (desiccant clip)(SPANNERBOT) 2 x M3 Short Square Nut (SPANNERBOT) 23 x M3 Nuts 1 x Threaded Bowden Coupling PSP Pipe Thread 1/8 G 1/8-28 A Right Hand 1 x Length of PTFE Bowden Tubing 1 x Clear Silicone Sealant for the Windows and Core