A1 second spool holder

A second spoolholder for the A1.IMPORTANT NOTICE: This works only with the new version of the Bambulabs spoolholder without threads. Simply remove the caps from the spoolholder and insert the new arm for the spool and the PTFE-tube connector arm. This design uses 1x PTFE connector PC4-M10, which can easily be obtained from amazon and the likes. The design is inspired by https://makerworld.com/de/models/1218667-a1-second-spool-holder#profileId-1261541and https://makerworld.com/de/models/1247662-ptfe-tube-connector-a1-mini#profileId-1269494, but completely designed from scratch by me in Solidworks.