Large spool arm and support to hold wide spools (2kg) - for Prusa Mk4

Specifically for the Prusa Mk4 to hold wide spools like the 2kg spools. The support arm sits on the wider part of the metal frame and fits snuggly into spool arm end disk.
you will need infill just at the very top of the model to get good lock detail.

UPDATE. New files with no errors.