Simple replacement impeller for Bright vacuum cleaner per this website; https://www.jula.se/catalog/hem-och-hushall/stad-och-kladvard/dammsugare/robotdammsugare/robotdammsugare-025972/

Depending on your printers tolerances you may need to adjust the hole size a slight bit in the slicer. No supports needed.

If you find the original impeller difficult to remove, put two flathead screw drivers on either end and press it upwards. Its currently made to be a pressure fit on the axle as per the original

..Also, maybe its just me, but I think this one works a bit better than the original ;))

recommended settings: 3 walls 15-20% infill of your choice print in PLA or whatever your filament of choice is