Subject:
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Re: Steering a robot
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Newsgroups:
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lugnet.robotics
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Date:
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Mon, 12 Apr 1999 20:13:40 GMT
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Viewed:
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1089 times
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In lugnet.robotics, Nick Goetz writes:
> Thanks to everyone that responded. I do indeed have a differential setup on
> the rear wheels and a second differential to incorporate the power of two
> motors.
> The steering problem is that I don't know how to reset the steering
> wheels on the front of the vehicle to straight. I thought about using some
> rubber bands. In addition I thought a touch sensor to indicate straight
> would work as well. I would be interested in any other suggestions or seeing
> other pictures. Thanks!
On one of my robots I have a light sensor that I use the third motor to
scan to the left and right. I use a single touch sensor and two cams such
that it knows when it has reached either extreme. Using the Fwd(), Rev(),
and Off() routines will stop the motor on a dime at that switch point. This
should work just fine as the centering indicator. You can use Sleep(N) and
vary N to determine how far to left and right you wish to turn. When turning
you can use the slipper clutch gear so that even if you hit the end-limits
you won't damage anything, or you can gang touch switches together to also
see the limits being hit.
Works for me! ;-)
DLC
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Message is in Reply To:
 | | Re: Steering a robot
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| Thanks to everyone that responded. I do indeed have a differential setup on the rear wheels and a second differential to incorporate the power of two motors. The steering problem is that I don't know how to reset the steering wheels on the front of (...) (25 years ago, 12-Apr-99, to lugnet.robotics)
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