This ball can be used for playing baseball in reduced spaces or indoor since it collapses slightly when hit with the bat, absorbing the blow and reducing the trajectory distance.
For Softball size you need to scale it up typing the desired diameter (for 12" softball type 75mm) do it from the print profile so it keeps the same manual painted supports.
Airless Baseball Wiffle Ball V2.0 update:
-complete geometry expansion for more solid structure and weight feel.
-redesigned seam line and stitches, exported as a different object so it can be printed in multicolor.
Mandatory manual paint support only for the base!, recommended to be printed in TPU.
Check my current state on airless balls! :
Airless Ping Pong, Table Tennis Ball: https://makerworld.com/en/models/386079#profileId-286461
Airless Tennis Ball: https://makerworld.com/en/models/253687#profileId-270125
Airless Basket , Soccer, Voley or Handball Ball v1.2: https://makerworld.com/en/models/223189#profileId-241192
Airless Golf Ball: https://makerworld.com/en/models/383904#profileId-284030