Subject:
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Re: Thoughts on Turning
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Newsgroups:
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lugnet.robotics
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Date:
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Tue, 26 Jan 1999 20:01:56 GMT
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Original-From:
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Peter Hesketh <pbh@phesk.demonIHATESPAM.co.uk>
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Viewed:
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998 times
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In article <F66Dn9.D3M@lugnet.com>, Dean Lovell <dean@aaddesign.com>
quotes and writes
> > Well, enough rambling for now. Any one else using a similar sort of design?
> > Thoughts on improving this one? Better ways to implement the first two
> > options? Other completely different ways of handling the steering problem?
> >
> > -Blake (budding lego hacker)
>
> I have built something along those lines sort of. I have two driving wheels
> in the center and four supports that slide (just for lino). The one support
> lifts the unit enough for the driving wheels to rotate. So the unit doesn't
> turn, but the driving wheel do. I wanted the ability to stop and go directly
> sideways (no turning radius).
> The unit is not well enough designed to my satisfaction, but it does work.
> One support (that lifts) drags a little more so it doesn't go quite straight.
> I plan to build a low center of gravity model using the crane truck outrigger
> idea for lifting the unit.
>
> http://aaddesign.com/lego
> two wheel stander.
>
> BTW I am in the same Lego situation, getting back in with MindStorms and
> finding out I am no engineer. But what fun.
How about this for a totally untested idea: (it relies on the existence
of a lego sphere which may not actually exist)
Use 3 spheres instead of wheels, with each sphere in contact with four
driven axles, a bit like a mouse ball.
--
Regards - Peter Hesketh, Mynyddbach, Mon.
Forty reasons why a dog is better than a woman: number 20
"Dogs understand that all animals smaller than dogs were made to be
hunted."
--
Did you check the web site first?: http://www.crynwr.com/lego-robotics
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Message has 1 Reply:
 | | Re: Thoughts on Turning
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| (...) There are two spheres found in the Robosports expansion pack, but they are soft foam and couldn't support the weight of the RCX. Its still an interesting idea though, and could be done with standard rubber balls (even mouse balls if you have (...) (25 years ago, 26-Jan-99, to lugnet.robotics)
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Message is in Reply To:
| | Re: Thoughts on Turning
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| (...) I have built something along those lines sort of. I have two driving wheels in the center and four supports that slide (just for lino). The one support lifts the unit enough for the driving wheels to rotate. So the unit doesn't turn, but the (...) (25 years ago, 26-Jan-99, to lugnet.robotics)
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