Rostock Max V2 E3D V6 Ultimate layer fan shroud

This cooling rig dramatically increased my print quality. I can now print overhangs over 45 degrees cleanly and consistently.
As you can see in the CFD simulation, the 3 air ducts channel the air exactly down the center. This maximizes the cooling of the printed section. This effect can clearly be felt on the actual printer.

Installing the E3D V6 on the Rostock max is easy, but thanks to its compact design it's hard to fit a layer fan. I've tried about 10 different shroud designs, fans e