You can print the lid assembled or in pieces.
If you print in pieces you need to use the new inner ring. Otherwise you can use all original parts form the Easy Print Pokeball which have been mirrored here for convenience.

For printing in pieces:

1. Print one outer shell lid main, one outer shell lid m, and two outer shell lid bump pieces.
2. Cut out the supports inside the M of the outer shell lid main.
3. When installing the bumps make sure the curved part is toward the top of the lid.
4. Print the new inner ring and then assemble the rest as normal.
   For printing the assembled lid:

1. Print the outer shell lid assembled
2. Print the rest of the pieces from the original easy print pokeball and assemble as normal