Drysuit dryer: reducer for B-Air VP-20

thingiverse

When on the move, drying up your dry suit can be a challenge without that custom bulky PVC rack. I designed a reducing manifold that can be screwed on the face of a B-Air VP-20 air mover. These air movers are sold at Home Depot and probably other places and cost about 90$CAD. The reducer is made to precisely fit the Rigid 1"7/8 x 7' vacuum extensions that are also found at HD. This isnt exactly cheap since those hoses are priced at 24$ each and you really need 4 since 7' isnt enough to send each hose outlet at the bottom of a drysuit without having the blower sit right by the drysuit collar. The outlet openings are 68mm wide, so one alternative is to find an old home vacuum hose and to screw it at the ends and that might end up cheaper. This blower really puts out a lot of pressure and at low power, there is some amount of turbulence and backpressure, but it still manages to put out more air than you probably need and dries up the suite in pretty much record time. These blowers appear to use induction motors - they do not generate ozone. I printed this at 5% infill and its good enough but would probably not enjoy getting thrown around hard. Probably best to print with ABS and 20%. This is sized to fit diagonally on a prusa i3 mk2. Pre-drill holes along the long edges before putting in screws, otherwise things will crack, and dont overtighten... For those wanting a 4 inch ventilation adapter instead: https://www.thingiverse.com/thing:4557424