Subject:
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More outputs, thinking outside of the box...
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Newsgroups:
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lugnet.robotics
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Date:
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Thu, 11 Mar 1999 20:21:57 GMT
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Viewed:
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1123 times
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With all of the ideas of mechanical linkage flying about for getting more
controllable outputs for the RCX, I couldn't help but think, "there has GOT
to be a better way!"
How about this idea. Its even all-lego.
Use your three outputs in one mode normally, but have a bump switch on
the extreme limits of play for one motor, at that limit you trigger the
bump switch, which then shifts power from one set of motors to another
set. Now you can use that set of three motors and have another lever
that un-triggers the bump switch and sets the prior one, or, even trigger
yet _another_ bump switch for another set of motors. You would need to
create only one Rube-Goldberg piece. The toggle lever for the bump
switches.
To make this work you will need two bump switches dedicated to the
circuit, one to enable one set of motors, and one to enable the other
since there is no such thing as a SPDT bump switch. I can see a simple
lever with a rubber band defaulting the lever to one switch and a cam on
one of the motor shafts.
You simply have one side of the wire common to both sets of motors and
the other wire is the one to get switched back and forth. You'd need a
couple extra power wires too.
sound easier?
DLC
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