Subject:
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Re: Straight-driving car
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Newsgroups:
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lugnet.build
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Date:
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Fri, 3 Sep 1999 14:16:16 GMT
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Viewed:
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427 times
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If you're interested, I have posted an LDraw file of such a robot that
incorporates an adder-subtractor transmission into its chassis:
http://www.lugnet.com/cad/dat/models/?n=220
You need two differentials, but it works pretty well. The only complaint I
have with it is that it's very slow (1 or 2 inches per second) but if you have
the patience it's a very effective robot. I'm working on a mapping program
myself and so far I've gotten the robot to rotate accurately to 1/8th of a
degree.
If you are willing to shell out $50 for two Dacta rotation sensors, you can
mount them on the front and track how far it moves and rotates, instead of
just using the timers. Even one sensor would be useful for tracking rotation -
you don't necessarily need two sensors.
Hope this helps,
Ian
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Message is in Reply To:
 | | Re: Straight-driving car
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| (...) Yeah, it is, but in order for it to be able to correctly map the house, without making the whole map screwed up, it needs to be able to drive perfectly straight. (25 years ago, 3-Sep-99, to lugnet.build)
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