This is a fan I made for my dad's lawnmower. It's modular so the fan blades are really easy to print. I printed it from ABS and attached the blades with acetone. The fan has lasted one summer so far.
The blade 2 is bit longer and overall better than the first one, but there's definitely still room for improvement there.
fan.SLDPRT | 452.0KB | |
fan_base.STL | 182.2KB | |
fan_blade.STL | 63.8KB | |
fan_blade02.STL | 390.0KB |