Yet another electric powered "turbo"... but this one sucks really hard! [>1.0 psi easily]
I set about designing a centrifugal compressor with a smaller rotor/shroud clearance that commonly found, in order to achieve high pressures more efficiently. With just 0.5mm clearance, this thing has enough clearance to work with common sloppy hobby grade hardware and printers, yet it is still tight enough to put out 1psi without much power. I achieved over 1psi on 2s5000 with the below listed 4000kV motor. I have tested with 3s without measuring pressure; it was pretty scary but it may be able to do 4s if have a better motor and balance the rotor well.
BOM:
1@ 540 sized motor (w/ 2-6@ M3-10 mounting bolts)
1@ printed rotor (ABS, 0.1mm layers, 4 walls, 70% infill, build plate supports)
1@ printed *matching upper (PLA, 0.2mm layers, 2 walls, 40% infill, supports everywhere)
1@ printed lower (PLA, 0.2mm layers, 2 walls, 40% infill, no supports required)
6@ M3-16 bolts
*The type of upper and rotor must be matching. For example…