Maclaren,
This is purely my opinion and in no way am I forcing my answer towards you, I also appreciate this community and the fact that we are able to hold discussions and have ones opinions posted with utmost respect.
I don't believe a belt drive is effiecient enough for a few reasons
- It would require a custom made belt, while #25 or #35 chain is cheap and is customizable
- Belts tend to slip, and with a drive system in FIRST, you want your wheels to slip, and not your drive system.
My former team in 2002 made a two speed transmission out of belts, and it was a complete failure. If I was in your shoes, I'd use chain for my drive system (it's a proven system) and not design the most crucial part of any FIRST robot with questionable variables.
Again, this is my professional opinion, and I thank you for the chance to respond to you.
Sincerely,
Greg Perkins