This is version 2 (V2) of the Delta-P fan duct for BEAR. It has several updates compared to the original:
Print guidelines:
Many thanks to members of the Prusa3D discord for providing feedback and doing the CFD analysis!
Running MK3S or MK3S+ extruder? Click here for the MK3S(+) variant:
https://www.prusaprinters.org/prints/62523-delta-p-fan-duct-v2-r2-for-mk3s-extruder
Link to the original Delta-P fan duct:
https://www.prusaprinters.org/prints/12775-delta-p-fan-duct-for-mk3s-extruder
Changelog:
7 April 2021: Small model change to improve bridging at exits.
The author remixed this model.