Subject:
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Re: caster wheel design
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Newsgroups:
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lugnet.robotics
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Date:
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Thu, 7 Apr 2005 11:39:54 GMT
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Original-From:
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dan miller <danbmil99@yahoo*NoSpam*.com>
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Viewed:
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814 times
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you can use omniwheels, like the ones from Charmed Labs:
http://www.charmedlabs.com/productsmain.htm
They only sell the single-row ones, but the double-row ones
(http://omniwheel.com/omniwheel/omniwheel.htm) can be adapted to Lego robots quite easily. You
can also combine two single-row ones to work like a double, but it's a bit tricky because the
relationship between the hub orientation and the positions of the small lateral coasters is random
(I think they just glue a little lego piece into the hub).
I've used both techniques to advantage in rather heavy robots, including one that carries a laptop
on its back. Pix can be provided if anyone is interested.
-dbm
--- Patrick Levy <omiccron@uol.com.br> wrote:
> Thanks everybody for the answers, but i think i will give up with the
> caster... The robot will be very heavy... i think it wont work.. I will go
> to a synchro drive aproach...
>
> Thanks.
>
> Patrick
>
>
>
> "Patrick Levy" <omiccron@uol.com.br> escreveu na mensagem
> news:IE63r0.17AD@lugnet.com...
> > Hi,
> >
> > I´m tring to build a robot that may use a caster wheel, But i am running
> > some serious problemes in it design. If I use an axle or pin for the • caster,
> > it will bend. (the robot is quite heavy). So i tried to use a turntable as • a
> > caster axle, but for some reason, it also did not work (the caster does • not
> > turn somootly.).
> >
> > Does anybody have some tips for good caster design?
> >
> > Thanks
> >
> > Patrick
> >
> >
>
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Message has 2 Replies:
 | | Re: caster wheel design
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| Wow, where did you find it? I will get four of these to me... Thanks "dan miller" <lego-robotics@crynwr.com> escreveu na mensagem news:20050407113954....hoo.com... (...) robots quite easily. You (...) tricky because the (...) lateral coasters is (...) (19 years ago, 7-Apr-05, to lugnet.robotics)
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