60mm fan duct/velocity stack with grill

I needed a 60mm grill/guard and also wanted to use a duct/velocity booster so I combined two designs I liked into one.

I am using it with M3 screws and it works really well. Performance seems a bit better and I am happy that the fans are well protected

Remixed from:

https://www.printables.com/model/454310-fan-grill-120mm-60mm/files https://www.thingiverse.com/thing:4412301

Big thanks to the great original designers. I just combined their creations