40mm Fan Shroud for E3D-v6

I couldn't find a 40mm fan shroud that quite fit my heatsink, so I designed this one. I tried to maximize airflow through the shroud by opening up the hole as much as possible. I also cut away part of the fan mount so it doesn't make contact with the heating block.

Once printed, I recommend adding some electrical tape as shown in the photo to improve grip and reduce vibration.

For reference, I'm mounting a Noctua NF-A4x10 FLX to the E3D-v6 hotend from Filastruder (http://www.filastruder.