The Modular Air Duct system is exactly what I was looking for my BIQU H2. However I wanted a side mounted 5015 fan duct to save space and keep it as compact as possible. This printable is remix of the ebmpapst RLF35-8/14N fan mount that was just about right for the 5015.
17-Apr-2023: Uploaded the STEP files, as requested by a few people.