Type A is the version without a barrier.
Type B is the version with a mid-section barrier.
Printing without support
ABS and PETG are recommended, but I printed it with PLA.
----------02.01.2024 update note----------
I've addressed some issues that arose during my one-month usage:
Printing without support structures.
After printing the fixed hook section, simply remove and refine it.
The author remixed this model.
I edited it to fit the Flsun Q5 swappable duct.