I am building a robot and i am in need of treads. I plane on make a decient sized one, would like to make it 1/9 to 1/6 scale. It will only be use for fun(no combate stuf yet). Were can i get them. Thanks for the help.

Here is a great source for cheap belting. Although really for conveyors, the belting with sprockets may be suitable for your use. Some of the belting looks similar to tank tracks!

http://www.intralox.com/

Cheers
Eric Scott

Try the robot market place