Filamentroller for a drybox

I designed this filamentroller especially for the dry box in the link below, because no one I found fits perfect.

Important for me was:

1) fits perfect into the box, without moving around in the box

2) printing with complete PTFE connection to my creality K1 printer, so I can leave the Filament connected to the printer over weeks.

3) Silicagel in bags (behind the roller) or in containers (in the filament roll) possible

4) closing the Hole in the PTFE feedthrough with a cap, holding the filament dry over month

5) integrated Humidity Sensor with a distance to the silica gel, because I like to measure the humidity of the air in the box and not the humidity of the silica gel

I recommand a good calibrated printer especially the flow rate. Best filament is PETG, but do not use high speed PETG, it has lower layer adhesion. I recommand creality PETG, my experience is very good with this PETG. No support necessary except for the cap for the PTFE  feedthrough connector. 

layer height: 0,2mm, for the two parts with thread: 0,16mm

perimeter: 3

infill: 50%

Behind the PTFE feedthrough connector I designed a cap with a M6 melting nut. The reason for this is to avoid scratching the filament on the metal of the feedthrough connector.

Filamentdrybox: https://www.amazon.de/dp/B0F8B8C9Q6?ref=ppx_yo2ov_dt_b_fed_asin_title

bearing: https://www.amazon.de/dp/B09PVDDBWF?ref=ppx_yo2ov_dt_b_fed_asin_title

PTFE feedthrough: https://www.amazon.de/dp/B0DDT1NGJ9?ref=ppx_yo2ov_dt_b_fed_asin_title

humidity sensor: https://www.amazon.de/dp/B0DMSXZM2D?ref=ppx_yo2ov_dt_b_fed_asin_title

melting nut sortiment: https://www.amazon.de/dp/B0DYDS6W89?ref=ppx_yo2ov_dt_b_fed_asin_title