esun-refill spool + bambulab spool

The original locking mechanism is unchanged, and these will work interchangeably with the original version if you only want to do one side or something. The lock tab is still there for accepting the Bambu Lab refills and the original shims work as well if you want the extra locking power. I would recommend you print this in something that can withstand a dehydrator though I used PETG.