[Cory]

If you want titanium chain and sprockets, you're going to blow almost the entire cost of your robot right there.

Try looking at nylon sprockets. They're plenty light and then won't cost you an arm and a leg, and they should hold up unless you're putting a ton of torque through them.

I'm not sure you'd even save enough weight using titanium over steel that it would be worth it for the money.