BIQU B1 Dual 4020 Blower Fan Duct
thingiverse
*EDIT* It works. Everything does line up. Although you can only run the fans at a speed of 50%-60% due to the limitations of the design. Which works. There is an updated version of this file. It is the same deliver method, just with fans at 30 degree angle to help with flow. https://www.thingiverse.com/thing:4746136 I took Biqu B1's OEM fan duct for 40x10 blower fans and made some adjustments for a 40x20 fan. I liked the stock fan duct, it is a great stock cooler. I wanted to keep the stock look as much as possible while upgrading for some insane bridge control. Or you can use larger fans to run them slower for quiet operation. Your choice. I have yet to try this out yet so it will remain a WIP till I have tested it MYSELF. I have so many things I want to try out but no time. Hopefully someone tries it
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