The part where the handle is resting on the backside of the base whilst having the vaccum cleaner standing upright.

I printed in matte PLA 0,15 mm with 100% infill and standing upright with the screw hole up. I printed a prototype in the horizontal orientation but the weight of the vacuum handle lead to layer delamination.

A brim is very much recommended.

The model prints as is provided with the screw hole down and the pin up. The two archs as well as the screw hole printed well without support but even if they turn out rather bad, it probably won't matter since it will likely not affect durability and/or function.

enjoy!