Subject:
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Re: Power steering for 8448
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Newsgroups:
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lugnet.robotics
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Date:
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Mon, 9 Aug 1999 12:00:29 GMT
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Original-From:
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Jacob Schultz <anne.jacob@get!avoidspam!2net.dk>
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Reply-To:
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c948605@student.dtu+NoMoreSpam+.dk
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Viewed:
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1041 times
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Tilman Sporkert wrote:
> You should be able to get away with just a single rotation sensor. When you
> power up the RCX, you will not know the position of the steering. Now turn
> it one way until the rotation stops. You are now at the end point, and know
> the position of the steering. You might want to consider driving the
> steering mechanism with a rubber band and pulleys so that the motor can slip
> at the end position. The only drawback of this approach is that on power up
> your wheels go through a cycle of rotating back and forth.
Good point! Well I'll have to change my model a bit then - the rotation sensor
should not go onto the motor axle, but onto the axle driving the rack (stilled
geared I guess).
Hmm, what can I use this touch sensor for now?? An extra bumper maybe.
Jacob
--
Did you check the web site first?: http://www.crynwr.com/lego-robotics
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Message has 1 Reply:
 | | Re: Power steering for 8448
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| An other way to check the real position of a steering system is to use a potentiometer instead of a rotation sensor. This way, you have the absolute position af the steering system, with for example full left at 0, full right at 100 and center at (...) (25 years ago, 10-Aug-99, to lugnet.robotics)
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Message is in Reply To:
| | RE: Power steering for 8448
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| You should be able to get away with just a single rotation sensor. When you power up the RCX, you will not know the position of the steering. Now turn it one way until the rotation stops. You are now at the end point, and know the position of the (...) (25 years ago, 9-Aug-99, to lugnet.robotics)
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