Subject:
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Re: Two more for the wish list
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Newsgroups:
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lugnet.robotics
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Date:
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Sun, 28 Jan 2001 19:36:12 GMT
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Viewed:
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1468 times
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Matthias, this is easy to do without a new part. You use a normal
differential, put one shaft in one side, the other shaft (but reversed) in
the other and connect the rotation sensor to the output. You get a positive
count if the right wheel is going faster and a negative count if slower.
However, a differential with a reverse feature on one input would be great.
Jerry
In lugnet.robotics, Matthias Jetleb writes:
> I've noticed that there is considerable discussion in various groups
> regarding the problem of getting a robot to move in a straight line.
> Here's something for the LEGO wish list I haven't seen mentioned
> before:
>
> A DIFFERENTIAL rotation sensor
>
> Mount the brick to the frame, run one axel into one end and the other
> axel into the other an get an output that directly corresponds to the
> difference in rotation rates.
>
>
> I also wouldn't mind seeing an E/P (electrically operated pnumatic)
> switch come to think of it.
>
> Matthias Jetleb
> VA3-MWJ
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Message has 1 Reply:
 | | Re: Two more for the wish list
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| (...) Yes - but if you've been following the discussions about dropped counts, you'll know that the standard rotation sensor is pretty inaccurate when you set it up like that. It likes nice *fast* rotation rates. (26 years ago, 28-Jan-01, to lugnet.robotics)
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Message is in Reply To:
| | Two more for the wish list
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| I've noticed that there is considerable discussion in various groups regarding the problem of getting a robot to move in a straight line. Here's something for the LEGO wish list I haven't seen mentioned before: A DIFFERENTIAL rotation sensor Mount (...) (26 years ago, 28-Jan-01, to lugnet.robotics)
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