This is a Fan Shroud for the Anycubic Delta printers using the stock fan setup. It provides air around the nozzle as much as possible and adds a vortex effect. Not as much as my shrouds that surround the nozzle but this one can be printed using PLA and still work with the heated bed.
I added this as I felt it was important to have a fan option that worked when printed with PLA and it provides better all around cooling than the stock shroud.
Edit 12Dec2017 I added a step file so you can bring this into your favorite cad program and make changes.
AnyCubic Delta Linear-Plus