Simple print that replaces the cardboard core of the prusament spools.

Benefits of this core:

• Reduces the overall width of the spool to bring it into spec of Bambu's AMS, so it can be used on the AMS without issue.
• Fits on the inside of the hub instead of over, so after respooling, the filament isn't all the way on the edges (which makes it easy to fall off the spool)
  • This also means a smaller core, and less material needed to print it
• Support free, can be used right after print, no need for support removal
• Friction fit, model is sized perfectly to friction fit into place, no additional hardware needed
• Screw holes, in the case of different material shrinkage, or you just want to be safe, screw holes are provided so a 3mm screw can self tap and hold the spool together
• filament hole, perfectly size, shaped and angled hole to hold the filament in place while respooling
  • AMS can also easily pull the filament out of the hole at the end of the spool