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Steve (...) Hmmm. If it's a single wheel then why whould it prefer a straight line? Why did you abandon two wheels? (...) I bet their drive-trains are a lot more efficient. Frictional losses in Lego gears and axles are high. I've never seen one with (...) (22 years ago, 29-Oct-02, to lugnet.robotics)
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| | Re: Problem with auto-steering mechanism.
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(...) Well with all this discussion I couldn't resist trying it myself! :-) If I understand the concept correctly, the front (single) wheel is driven thru a freely rotating turntable. When the front wheel stalls due to the robot hitting something in (...) (22 years ago, 29-Oct-02, to lugnet.robotics)
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| | Re: Problem with auto-steering mechanism.
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(...) That's *not* entirely obvious. There is a tradeoff between ease of twisting of the turntable and ease of slippage in forward drive. A nice chunky tyre with tons of grip is hard to twist - which makes the robot drive forwards better without (...) (22 years ago, 30-Oct-02, to lugnet.robotics)
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| | Re: Problem with auto-steering mechanism.
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(...) Ahhh. I see your point now. Independent of what the back wheels are doing, you still want a bias in the front wheel itself to go straight rather than spinning in place. Otherwise, all the power could just as easily spin the front wheel in (...) (22 years ago, 30-Oct-02, to lugnet.robotics)
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