Subject:
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Re: pneumatic switch control
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Newsgroups:
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lugnet.robotics
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Date:
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Mon, 26 Apr 1999 08:25:30 GMT
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Viewed:
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1062 times
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Dennis Clark wrote in message ...
> In lugnet.robotics, Joel Shafer writes:
> > > Now I need to find a way to control two or more pneumatic switches with a
> > > single motor, in both directions!
> >
> > I've been thinking about this a lot...
> >
> > What about using a differential to separate motor direction output.
> > Turning one direction could control one switch and turning the other could
> > control the other switch. The switches could be controlled in a cyclic
>
> Rather than that, how about triggering one switch automatically at the
> end of travel of the other? For instance, you won't dump your bucket on
> the front end loader until it is a max height. Have the motor control
> the lift are with a sensor switch to tell it when its half way up so that
> it'll stop before full rise (hopefully), then when you want to dump it,
> trigger the switch again to full on and when the bucket reaches the top,
> it triggers the other switch to dump it and reverses the switch when • dropped
> back down.
See demonstartion of the principle:
http://www.svc.fcj.hvu.nl/brok/legomind/insights
Select pneumatic control from menu
Eric Brok
Visit LEGO ON MY MIND:
http://www.svc.fcj.hvu.nl/brok/legomind
Mindstorms/Mind Control section:
http://www.svc.fcj.hvu.nl/brok/legomind/robo
Dutch section:
http://www.svc.fcj.hvu.nl/brok/legomind/nl
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Message is in Reply To:
 | | Re: pneumatic switch control
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| (...) Rather than that, how about triggering one switch automatically at the end of travel of the other? For instance, you won't dump your bucket on the front end loader until it is a max height. Have the motor control the lift are with a sensor (...) (25 years ago, 22-Apr-99, to lugnet.robotics)
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