Subject:
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Re: 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 20:48:40 GMT
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Viewed:
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1051 times
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Dennis - How can you make use of the 3rd. motor if it needs to be
available to bump the switch? Also, how would you deal with the
polarity going to the 2nd set of motors? Thanks --- John.
on Thu, 11 Mar 1999 20:21:57 GMT, "Dennis Clark" <dlc@verinet.com>
wrote:
> 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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Message has 1 Reply:
 | | Re: More outputs, thinking outside of the box...
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| (...) Often you don't need continuous motion, eg. robot arm, and you can keep to a limit. If you use another bump switch to tell the RCX that the motor shouldn't turn any more you can stop the action before you get to the second bump switch that (...) (26 years ago, 11-Mar-99, to lugnet.robotics)
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Message is in Reply To:
| | More outputs, thinking outside of the box...
|
| 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 (...) (26 years ago, 11-Mar-99, to lugnet.robotics)
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