Using the .stl file from DrBoom's model I created discs 3, 4, 5, and recreated disc 2.

NOTE: I have not verified these work. None of my discs have yet to break. I bought a used set and only then found out about these discs breaking. I'm just trying to be prepared. I tried my best. If they print out exactly as drawn they should work….assuming DrBoom's worked. I assume it did. Different printers get different results though. If these do not work, do let me know. I will try to correct them and if that isn't possible I will delete this model. Thank you.