[Zeke]

I want to cast a solid object the size of a tennis ball that has some weight to it. I will need to machine the raw casting. I can't find any links to either the process or the supplies. Preferably the end product would polish and be black.

It needs to have a decent Rockwell similar to light to medium weight metals. If that's too vague, I have seen some similar products done in brass and AL for the difference in weight vs. mass.

Not much done in composite. Maybe there's a reason?