The sample of the sphere structure I drew was finished yesterday. The result is not bad, I could basically sure about this plan would work, but need to be improved in many aspects.
Analyze this sample, the problem are:
- the steel balls inside were too heavy for aluminum shell, I should make their weight more even
- the connecting stick between the two steel balls should be thicker as I drew before. It actually doesn’t need this much space to scroll
- to be more stable, the inside connecter between two half sphere shells should be a whole piece with the two shells, which could be achieved by using 3D print. Thats my next plan.
- Be more beautiful
- the shell could be transparent so that we could see the structure inside.