Holder for Filamentspool very simple but nice

This simple Spool Holder is designed for all Printers with 40x5mmFrame, like MK3-4
Just under 20g Filament but strong!  Designed to fits directly on the frame and the enclosure space can be kept very small. You just need 4x 608 Bearings and you will be fine!
You can also use this rings, I take it from this nice Holder:  https://www.printables.com/de/model/491394-ball-bearing-spool-holder

Within the Slicer I just use Infile Honycom 9% with no Top/Bootm-Layer, I like this open design. The GCode is in sequentiel, so the results are very smooth and faster. Printing in my Case under 1h! for one Set with just 20g PETG.
For mounting the bearings, please use the 4 EndCaps, they have a smal hole inside just put 1cm Filament inside than it is closed and fixed, no glue, no screw! ;-)

Enjoy!