Caterpillar Tracks

is a fantastic resource for 'bot building, it's a teaching resource site with loads of bits & pieces.

check under Mechanical Components / Adhesives & you'll find caterpillar tacks.

best regards Colin

Timing belts are a frequently-recommended option for caterpillar tracks, and have fairly wide availability. There are always various types available on the surplus market, and automobile timing belts (for overhead cam engines) are always available. The latter are *very* tough, but can be a bit inflexible for a low-powered drive system.

-- Mark Mould>