Subject:
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Turning with one motor
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Newsgroups:
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lugnet.robotics
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Date:
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Wed, 12 Jan 2000 15:45:06 GMT
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Original-From:
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Simon Holt <SIMONH@NOPnospam.CO.UK>
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Reply-To:
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S.HOLT@NOPstopspammers.CO.UK
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Viewed:
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659 times
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I am another one who got the RIS for Christmas.
I have built the prototype from the back of the manual that uses
one motor to turn both of the tracks with the differential.
The problem is I can't get it to turn when it goes into reverse. I had
a look on the Lego web site that had a slightly different design but
that doesn't work either. It either just clicks and turns normally or
when I try to tighten it with a band just locks up both wheels.
I've tried loads of different approaches with no success so I am
giving up and asking you lot, I'm sure there is a simple solution but
I can't see it.
Simon Holt
MIL Motoring Research
NOP Automotive
Ludgate House
245 Blackfriars Road
London SE1 9UL
Tel: +44 (0) 20 7890 9253 (direct line/voicemail)
Fax: +44 (0) 20 7890 9263
Website: http://www.nop.co.uk/automotive
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Message has 2 Replies:
 | | Re: Turning with one motor
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| The ratchet arm doesn't stop the wheel from turning properly. If you play about with it it should do. Try changing the end bit --- I think I used a 3-axle to stick down onto the gear wheel, so you should have an inverted L shape where they just have (...) (25 years ago, 12-Jan-00, to lugnet.robotics)
| | | Re: Turning with one motor
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| (...) If you can't get that version working, try making a bot that drives forward with a plain differential (or even a solid axle, for simplicity) and uses a steering wheel (or wheels) which point forward when moving forward but twist sideways when (...) (25 years ago, 12-Jan-00, to lugnet.robotics)
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