I made this adapter to fit GekoPrime's Spool Winder. It allows me to use rolls that have a 75mm opening and fit them to the spool winder accessory.
The ones you see I printed were my first ones. Since then I did make them thinner to fit the spoolwinder better. So all these files below are good to go!
I printed with PLA, 2 walls, and 10% infill.
The author remixed this model.
I didnt touch his design. I just made another adapter for his design.