Since I got some 250g spools with a smaller diameter (140mm) I was looking for a fitting spool roller. But this wasn't as easy as expected. Eventually I stumbled upon filament spool adapters.
MediaMan3D shared some great adapter designs. However they are quite to large to print on my Prusa MINI. So I split the model into four individual parts for printing and assambly.
This is a remix of the originating 140mm diameter adapter only.
The connections have a tight fit. Some gentle force will be necessary.
Previews were printed in Prusament PLA Jet Black.
The author remixed this model.