Cyclonebot doesnt have tilting wheels? Interesting. Various people suggested to me that trying to vary the wheel speed at any decent RPM wasnt viable (for very plausible reasons), so if this is being done - or if theres another method of locomotion which doesnt involve tilting the wheels (I guess you could rapidly inflate and deflate the tyres, but Im struggling for other mechanisms) - Im curious how it works.

As to the navbot, Ive suggested before that mounting a gyro on a counterrotating platform would mean less weight in the centre than a navbot (and its invertable), but Im interested in how to do this without anything central at all. (Maybe gyros can cope with the difference between 700rpm and 701rpm? I dont know enough about them.)

Sounds like an interesting machine. Id be interested to read more about it. For the record: as a lesson in mechanical techniques, not to clone it - spinners arent my thing. :-)

Itll also be interesting to know whether they can avoid the traditional Y-Pout/Why Not problems of wrecking their batteries as soon as they hit something. I maintain that the first battery manufacturer who comes up with something with enough internal bracing to cope with robotic combat is going to have a greedy market!

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Fluppet