After trying afew design i found, shroud seem to melt and out of shape after awhile.
So I design and have been modifying to make it works better.
Print in ABS
Support from bed only
-Same as the original Mk3 nozzle cooler.
(unscrew the turbo blower fan and fit the shroud)
I have added my angle test print can easily do 30-75degree. It even can print the 55-80degree.