Reusing Prusa Spool for Bambu Refill

General:This is an adapter for old Prusament spools, so that you can use BumbuLab refills on empty Prusament spools. First you need to cut the outer rings of the plastic spools. It needs to be flat with the rest of the spool. I used an old japenese saw, but switched later to a cnc milling machine. But doing it by hand is just fine. You need to melt in four M3 heated inserts in total into the printed adapter. You just need two per side on the opposite of each other. After cutting down the original spool and melting the insets you can put the BumbuLab Refill spool on the printed adapter. Then you can screw both sides to the adapter. You need to allign the holes, only 2 will fit. Hardware:The adapter screws in from both sides with four M3 x 8 screws. Four M3 heated inserts in total need to be melted in the part. You just need two per side on the opposite of each other. Print Settings (spool adapter):For printing I opted for using as little material as possible.Material: PLAParameters: 2In