hello. my name is shane and am a roboteer of sorts. i was just wondering with your vapour bots do you work out the gear ratio and speeds of your robots. there is a thz how to calculator and all you have to do is fill in the fields and it calcs the speeds and ratios. tis good. but if you have already access to it or do it another way then cool.anyway if it helps here is the link
http://howto.killerhurtz.co.uk/calculator.htmhttp://howto.killerhurtz.co.uk/calculator.htm
hope this helps if it already hasnt.