I left my 5x5 Shengshou Rubix cube (that I had gotten a month earlier at Christmas) lying around at my church for less than 20 minutes. When I came back, I found it broken in 2 spots and disintegrated into its 93 (5^3-(3^3)-5) parts. I checked online, but the cost to ship the 2 parts I needed was more than what I paid for the cube originally. I was angry for an hour, but I remembered I lived in 2019.
It took me about a week to iterate the design for the face center piece (definitely the tougher challenge of the 2), and was lucky enough to have the corner work on the first try.
Print the center piece upside-down (color slot touching the build plate) WITH SUPPORTS. It is designed to not need supports for the screw shaft, but they are needed in the square part. It is definitely the tougher print of the 2.
The corner piece should be printed as-is (color bits in the air, parallel with the build plate), with supports.