Print-from drybox for 300mm filament spools

I semi-accidentaly  bought a few spools of PETG filament on larger, 300mm diameter spool, then realized I don't have the infrastructure to print it. This is the solution come from the following desperation.

Some of the parts are designed in FreeCAD and some of them in OpenSCAD. The editable files are included in the ‘editable model files’ folder use them for your convenience. Also Included stl-s and Prusa Slicer projects.

Three of the models are large you need a printer which can print a 340x16x21 sized model. I printed these large models on a more or less stock Voron 2.4. If you use the 3mf files, make sure you set the volumetric flow rate according to your hotend's capacity. You can print the parts with 0.4 or 0.6mm nozzle, there are two versions of the base part, since it has some walls which should be 2 perimeter wide. I use 2 perimeters and 10 percent infill 0.4 mm layer height for 0.6 mm nozzle and 2 perimeters and 7 percent infill and 0.25mm layer height for 0.4mm nozzle. Printed with a 0.4 mm nozzle uses significantly less filament, but much more time.
The flex part I printed with about 1.3mm (3 perimeters with 0.4 mm nozzle and 2 perimeters with 0.6 mm nozzle) wall thickness and 15 percent infill, so it can deform when the lid pushes down on it.
The nylon parts I printed on the Voron because it is enclosed. However these parts are small so they can be printed on a powder coated sheet with gluestick without enclosure.

The rest I printed out of PETG on a Prusa i3 MK3S with 0.2mm layer height, 4 perimeters and 25% infill with a  0.4mm nozzle. If you are using 0.6mm nozzle or different layer height some hole size and gap may need re-calibration. It is important for the ‘roller-holder’ part that the nut holes are tight enough so the nuts can not fall out by gravity.

Print one of all components except the roller (2pcs is needed), the roller holder (4pcs is needed) and the spacer ring (4 pcs needed).

The materials I used are:
-PETG for the outer shell, the hinge the lock and rollers
-TPE for the sealing (85A)
-PA12 for the inlet (which is actually outlet) and the spacer rings for the hinge mainly for low friction
 

Other materials needed:
- 40pcs M3 10mm cylindrical head screw (hinge, lock and rollers)
- 40ps M3 nut
- 2pcs M5 50mm partially threaded cylindrical head screw (for the hinge)
- 4pcs 61608 bearing (2 for each rollers)
- 1pc humidity sensor and neutral silicone paste for sealing
- 1pc PTFE pipe connector
- 2pc silica gel bags (c.a. 1/4 kg or ½ lb bags)