Newbie questions - main one - how cheap can a bot be? Advice please. :)

[hibernated]

Thanks for all the input everyone, sadly it sounds like it'll be too expensive for me if I'm getting multiple bots built and planning to cover most of the costs... £40 just for the transmitter, £100s (or £600 ) for a bot... I'll be subsidising at least 6 robots >,<

I have been poking around the various weight class forums on here and figured ant weight is probably cheapest, though I can obviously make up the rules to fit the parts we have available. I'll check out the link too though, cheers Psychostorm

It sounds like transmitter/receivers are the most expensive parts... maybe I can find a way around that cost... and speed controllers are needed it sounds like? There aren't parts that just take input straight from the receiver? Makes it tricky cost-wise...

I found these servos on Amazon pretty cheap, but it says 0.12seconds/60degrees in the speed section, does that mean they only turn that far or is the rotational speed given in radians or something (1rad =~60*)? http://www.amazon.co.uk/VicTsing-Mic...productDetails

Thanks again for all the help - I'll keep working on it...
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