I built a Prusament Upcycling - Laptop Riser and wanted to add two Noctua 40mm fans to improve cooling, one fan was mounted using the existing hexagons. The other one mounts via this attachment glued to the inside hole of the spool to be attached.
Print settings:
The piece glues easily to the inside of the spool.
Happpy printing!
The author remixed this model.