Subject:
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An untested idea...
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Newsgroups:
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lugnet.robotics
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Date:
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Fri, 12 Feb 1999 23:12:54 GMT
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Viewed:
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1907 times
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Hi all!
We all try to get more functions out of the CyberMaster or Mindstorms,
so what about this:
Back in the _very_ old days of radio controlled airplanes, You didn't
have a lot of channels in the radio - just one. One solution to get
more functions with this was the 'hick-hack' mechanism.
It consisted of a rubber band drive rotor, with (normally) four stops
around. When the radio signal was sent out, a relay would release the
rotor, but it could only rotate to the next stop. When the signal was
absent, the rotor stayed at the current stop. The rotor axis was
connected to the rudder so that You could get the following four
states:
1 - rudder straight
2 - rudder left
3 - rudder straight
4 - rudder right
Then all You had to do was to pulse the radio the appropriate number
of times to move the rudder to the position You wanted (You had to
remember the current state).
With more stops, and smart linkage it was also possible to control
more things.
I haven't had the time to try building anything like this with Lego,
but perhaps someone can come up with an idea.
Just a thought...
--
Anders Isaksson, Sweden
BlockCAD: http://user.tninet.se/~hbh828t/proglego.htm
Gallery: http://user.tninet.se/~hbh828t/gallery.htm
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