I wasn't satisfied with the current models of the airless basketball on here as they only had a single lattice. This took me days make sure the double lattice worked in CAD - SolidWorks was not built for this! As I don't have $2,500 to spare, I worked from the images available online.
GEN 11: I have not printed or tested this new version. I can only estimate that it will bounce better. Testing is required. I believe this one is going to be a little too light to match the original ball
MATERIALS I'VE TESTED:
The author remixed this model.
GEN 11: I have added cut-outs into the seams to make them more flexible. This should improve the consistency of the bounce