Delta-P fan duct V2-R2 for BEAR extruder

This is version 2 (V2) of the Delta-P fan duct for BEAR. It has several updates compared to the original:

• Easier to print
• Better cooling
• Refined flow path
• CFD optimized
• Even cooling front to back and left to right
• Improved visibility of nozzle
• Added hexagons!

Print guidelines:

• 0.20mm layer height
• No supports
• Orient for slicing as shown in images
• PETG, ABS, or other high temp material

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.