About the Bambu Labs X1C Spool Holder Clip
This clips right over the metal bracket that comes with the Bambu labs X1C and is meant to be used with a spool holder standoff. This provides a cylindrical surface for the spools to roll on, and also orients the spool at a slight angle to better feed into the PTFE inlet tube.
The wider end snaps on toward the printer. Also, print with this wider end down, we had good luck on the X1C without supports in PLA. If you modify or remix please let us know!