Printing is done in PLA with 40% infill on a Prusa MK3S.
The carriers are just glued into place with hot-glue.
Please use the rewind parts from Shanas modification and give credits and likes there as well as to Vincent Groenhuis who did most of the work.
Just poured 1 cm of silica at the bottom to keep the filament dry.
Remixed from:
Shanas Autorewinder Spool Holder: https://www.printables.com/model/18578-integrated-auto-rewinder-spool-holder-for-repbox
Vincent Groenhuis's Autorewinder: https://www.thingiverse.com/thing:3781815
The RepRewinder: https://www.thingiverse.com/thing:3516858
The author remixed this model.
Modified axis and carrier to fit into standard cereal boxes.