The reusable spool files came from Mediaman (https://www.thingiverse.com/thing:5536204), which I was very happy to get and print. I tried to use this on some Overture cardboard spools however, after separating the sides and inserting the spool, there was a bit of play between the cardboard wall and the spool center. The spacer clears the center of the spool and takes up the gap that the cardboard creates. The spacer was made with PLA on default settings. NOTE: The original spool files were not altered in any way, just used to print out. A Thank you and full credit goes to Mediaman for the spool make!

Enjoy the spacer!!