3D Printed Supercharger/Lobe Pump

This is my simple Lobe pump/supercharger that I designed and assembled in Autodesk Inventor 2023. I came up with this design on my own, after looking at how this style of pump works. it is very simple and rudimentary, so it is not optimized for highest flow rate.

-3D printer

-PLA filament or stronger

-6 M4 screws to bolt it together

-36mm diameter motor (you can use a different size, but you will need to redesign the mounting point on the cover)

-a way to connect the motor to the shaft of the lobe (there is a file for a 13 tooth, module 1 gear fitting to connect it all, you might have to design something for your specific motor)

Download the STL files linked below and send them to your printer (after slicing of course!)

Make sure to do extra sidewalls and to and bottom layers, and also make sure to have the infill at a quite high amount, because these parts will need to withstand high RPM and and other forces.

Also make sure you print two lobes!

Put the lobes in the casing, place the lid over them, then add the timing gears on and make sure the lobes are timed correctly. (Correct timing is when the lobes don't stop the other one from turning, and they can rotate fairly freely.) after, bolt the M4 screws through the lid into the holes in the casing. finally, mount the motor on the lid and stick some tape on to hold it in place. you can attach the nozzle shroud if you feel like it, it is just and extension of the intake/outtake.