XYZ da Vinci filament cartridge spool replacement

I designed this to be a direct replacement for the XYZ da Vinci filament spools inside their proprietary cartridges. I like to feed my printer from cartridges I refill myself because it keeps everything neat and contained and the stock cartridge assembly does a pretty good job of preventing intermittent self-unwinding and tangling that can occur with a simple exterior spool arrangement.

I left 6 square cutouts identical to the stock spools, so these should be compatible with your own filament