[OLD] Blower for 540/550/555 Motor

A 75mm blower, which uses a 540/550/555 motor (I used this motor). I was mainly experimenting with a closed, high pressure type impeller, with only the outlet ports of the impeller being in the blower shroud. This isn't a extreme performance blower, but it does move a decent amount of air with a good velocity. On lower RPMs (2000-4000) it is relatively quiet and moves a bit of air. Higher RPMs (8000-15000) turns it into quite a noisy and decent performer of a blower. If I could I would attach the CFM and velocity of the air, but I don't have those tools yet.

Print the shroud with supports.

Assembly: Screw the motor onto the impeller shroud first, and then press fit the impeller onto the motor shaft. You might need to drill out the impeller shaft hole a bit to get it to fit right.

CAUTION: ALWAYS use high strength filament for the impeller, and keep yourself away from it when it is spinning! High RPMs always run the risk of the impeller catching on something and sending bits of it flying off very fast!