[chbot] Lego Sumo action video

[Chris Hellyar]

You mean you didn't make that video in 1921?  I'm disappointed...

Neat wee robots though, and I especially like the pink slippers, nice
touch. :D

On Sat, 2009-01-03 at 16:16 +1300, Richard Jones wrote:

> Sorry to those who have received this twice already, my webmail tool seems to be messing with the mail dates, so here it is from Thunderbird, hopefully with the correct date so that it displays for everyone.
> 
> Here is the result some family cooperation around New Year, a video of Lego
> Nxt sumo robots Gnasher and Utahraptor in action:
> 
> http://homepages.ihug.co.nz/~rjtp/LegoSumo/RobotSumo.mov
> 
> I'll bring along Gnasher or a descendant to the Feb 18th meeting.
> 
> If anyone can point me in the direction of some catchy royalty free music
> we can publish something similar from our forthcoming February event more
> widely.
> 
> Thanks for the response to my Lego motor control question earlier. The
> solution I've adopted is to use two motor controls (as opposed to the
> single move control) block. This arrangement fixes my speed control problem
> by enabling feedback. The Lego help seems to use the terms power and speed
> pretty much interchangeably based I guess on the straight line relationship
> between PWM and off load rpm shown here:
> http://www.philohome.com/nxtmotor/nxtmotor.htm I had thought that the move
> block was using feedback, but apparently not.
> 
> Cheers
> 
> 
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