Central Park Lawnmower (CPE 1032/2)

Update (v4):
Since I got some feedback that it was a tight fit with the original bolts, I made some changes to the design.
I made the hole for the metal bolt a little wider (0.2mm on each side), added some grips for easier tightening and also inserted 3 stubs that hold the bolt on the inside.
This version does not need supports.
Print recommendations remain the same.

Please keep in mind I have not yet printed & tested this version myself... but I intend to do so sometime before Sept 1.

Spare wheel bolts for the CPE1032/2 Central Park electric lawnmower (sold by Praxis).
See picture 3 for the original placement of the part (for those of you that own one, you probably already know this).
They might fit other mowers, from the same brand.

The difference in versions is mostly aesthetic.

To print, make sure to add a modifier (cylinder with a minimum width of 20x20mm and height of 60mm (yes it should be taller than the object)) to the center of the object.
This modifier should have 3 walls and 100 % infill.
This will ensure a good solid core for the bolt to go through.
Version 3 might require supports for the hole of the bolt.
Version 4 does NOT require supports.

The rest of the settings can be left at standard, except for the global infill, which should be at 25%
Make sure you print it with the bolt-side facing the buildplate (like in the pictures).

I did the printing in PLA (for prototyping) and so far it's holding up... but to be on the safe side, i recommend PETG.
The bolts slid in fine for 3 wheels, but on the 4th i had to use an 8mm drill to slightly widen the hole.
I also applied some lithium grease to the inside of the wheels, to make sure they will turn nice and smooth.