PJS Centrifugal Pump by pauljs75

Last crawled date: 3 years ago

Centrifugal pump based on a design starting out with a torus. Can't say there's much science to this other than looking at how similar pumps were designed.
How well it works? Who knows?
--- Edit (9/7/2016) ---
Added a new version to the files, mostly the same but some differences. Changed scaling a bit, but now it has a motor mount. I hope I have it sized correctly for brushless motors common to R/C applications. (At least if the measurements are what I think they are, should be scaled within a factor of 10. That'll depend on what your printer software does with the files.) In the middle of the motor mount, there's also a flared area that meets with the volute. That is intended for a simple gland seal which is made with waxed or grease-impregnated string. The wrap and clamping should only be tight enough to stop leaking but not bind the motor shaft from turning. (Stuff like that is a bit of trial and error.) As usual pre-check everything first before printing.
--- Edit (11/17/16) ---
Exported .stl files from Blender, as I'd guess some people still can't figure out how to open something in Blender, enable the export plugin, and use the drop-down menu to export in the desired format. Regardless of that, any problems with the .stl and I can't help much. Source reference files are the .blends, so if it exported bad from Blender there's not much else I can do for you. (Maybe change the scaling factor, that's about it.)
Some other suggestions for assembly would be to use self-tapping plastic screws, RTV or silicone sealer on the seating area of the volute perimeter. Hopefully something like that would be obvious enough. Also if anyone makes this, give feedback. I could still make some changes that may save drilling or making attaching the motor easier.