Focusing nozzle for Milwaukee M18 Fuel Leaf Blower

This is a focusing nozzle I made for my M18 Fuel Leaf Blower. It may not fit the latest version of the M18 Blower as they have reduced the size of the factory nozzle. A proper fit can be achieved by scaling the STL.

I can't say it dramatically increases aviation, but that's my attempt. The M18 Fuel Blower uses a standard fan to force air where some other blowers use a centrifugal impeller. The fan produces a high speed, low pressure flow which is fine for this application. The centrifugal impeller would produce a higher pressure flow, allowing the nozzle to accelerate the air.