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Subject: 
RE: IR Ball (was Soccer-Playing Robots)
Newsgroups: 
lugnet.robotics
Date: 
Fri, 1 Sep 2000 14:27:54 GMT
Original-From: 
Wilcox, Doug <DOUG.WILCOX@IMCKESSON.COMstopspammers>
Viewed: 
709 times
  
Thanks! I _do_ get into toy stores fairly often ... but generally ignore
stuff at the register and normally go straight to the Lego aisle. :)

Doug Wilcox
Senior Web Developer
iMcKesson Provider Solutions Group-Needham
160 Gould Street, Suite 130
Needham, MA 02494-2308
Phone: 781.453.2900 x 237
Fax: 781.455.7990
e-mail: Doug.Wilcox@iMcKesson.com
http://www.imckesson.com

"You see, I had this space suit. How it happened was like this ..."
(Opening lines from Robert A. Heinlein's Have Space Suit-Will Travel)


-----Original Message-----
From: steve [mailto:steve]On Behalf Of Steve Baker
Sent: Friday, September 01, 2000 10:17 AM
To: Wilcox, Doug; Lego-Robotics (E-mail)
Subject: Re: IR Ball (was Soccer-Playing Robots)


"Wilcox, Doug" wrote:

Where did that cool plastic ball come from?

Wander into any toy store and you'll find small figures (Pokemon's etc)
packed into plastic spheres that split conveniently around the equator.

You should have no problem finding one of an appropriate size there
were LOTS to choose from at our local ToysRUs.

Our local Kroger supermarket also has some toys packed into
small plastic balls in their 50cent "gumball" machines...you
might get lucky...but I suspect those are too small.

I wondered if you could drastically cut down the number of LED's
by weighting the ball so that it rolls 'upright' when it stops.
Then, instead of needing to cover all possible directions out
of the ball with individual LED's, perhaps you could get away
with a smaller number pointing out of the 'equator' of the ball.

That wouldn't look as great as a free rolling ball - and the
robots would perhaps have trouble finding it while it's in
motion....but 28 LEDs is a heck of a lot!

The battery would probably make a good weight BTW.

--
Steve Baker   HomeEmail: <sjbaker1@airmail.net>
              WorkEmail: <sjbaker@link.com>
              HomePage : http://web2.airmail.net/sjbaker1
              Projects : http://plib.sourceforge.net
                         http://tuxaqfh.sourceforge.net
                         http://tuxkart.sourceforge.net
                         http://prettypoly.sourceforge.net



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