Subject:
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RE: r/c servos and firmware
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Newsgroups:
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lugnet.robotics
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Date:
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Fri, 20 Aug 1999 23:52:55 GMT
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Original-From:
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Tilman Sporkert <TILMAN@avoidspamACTIVESW.COM>
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Viewed:
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1264 times
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> It sounds to me like servos can't rotate continuously in the same
> direction. In
> other words, they're good for steering but not for turning the
> wheels that make
> the car go. Is that right?
Exactly. See
http://www.volz-servos.com/english/english.html
for examples. These servos have a little disc or cross on top with holes at
the edges. The servos can turn the disc only 45 degrees in each direction.
They are used for moving flaps or rudders on model airplanes. You bend a 90
degree angle in the end of a stiff wire or rod, and hook that into the disc.
You connect the other end in a similar fashion to the item that you want to
move back and forth.
I have also seen servos that have a pair of sliders on top. The two
sliders are moving in opposite direction. Servos are very strong, and allow
positioning without the need for a feedback sensor.
Tilman
--
Did you check the web site first?: http://www.crynwr.com/lego-robotics
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Message is in Reply To:
 | | Re: r/c servos and firmware
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| (...) Okay! Finally I got it! (-: It sounds to me like servos can't rotate continuously in the same direction. In other words, they're good for steering but not for turning the wheels that make the car go. Is that right? Anyway, having heard that (...) (25 years ago, 20-Aug-99, to lugnet.robotics)
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