Ultra High Velocity Shop-Vac Nozzle

thingiverse

This high-performance nozzle snaps directly onto the shop-vac casing (no hose necessary). Air blasts from the nozzle at incredible velocities: Fast enough to generate massive sound waves. Make sure to wear earplugs to protect your ears from large pressure fluctuations, as I did, since they can cause serious discomfort. Use caution when experimenting with this device - its high-pressure outputs can be hazardous. Although it's intended for recreational, aerodynamics experiments at high speeds, some doubts still surround the feasibility of a supersonic variant I'm working on now. Print out the design and refine its internal surfaces to minimize any turbulence. Apply heat followed by a coat of Elmer's glue to give the nozzle a sleek appearance. Next, remove the air intake hose and secure the nozzle to the shop-vac's exhaust port. As a safety precaution, obtain earplugs for anyone within 10 feet of the device when in operation. Simply turn on your shop vacuum, observe from a safe distance, and enjoy your high-speed experiment. Just be aware of your motor temperature; with the added resistance, you may want to operate at half-capacity, alternating between 1 minute on and 1 minute off periods for safety's sake.