I recommend using balls with blue dot; they are the hardest. You will need 4 M3x6MM screws to fix them to the lower frame; this one has 4 threaded holes in each of the 4 corners as standard.
RELEASE
22/03/2025
New V2 file (PrusaCoreOne_SquashBallFootCorner_V2.stl) :
26/03/2025
New version of PrusaCoreOne_SquashBallFootCorner_V2.stl file for better position of screws holes.
19/04/2025
New version of PrusaCoreOne_SquashBallFootCorner_V2.stl file :
The author marked this model as their own original creation. Imported from Thingiverse.