Subject:
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Re: The Great Ball Contraption
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Newsgroups:
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lugnet.robotics
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Date:
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Fri, 7 Jan 2005 18:31:23 GMT
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5947 times
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> In lugnet.robotics, John Barnes wrote:
>
> > Or someone who owns a soccer ball could measure
> > it and publish the size.
>
> Well, it's LEGO - it's just a tad smaller than 2 studs in diameter. If you've
> got a marble or wooden ball that will roll between two walls two studs apart
> (clearance about 1.5 mm on each side) you've got the size. The only real problem
> is weight. Regular (glass) marbles are much denser than ABS (how does wood
> compare?), so weight-activated devices (tipping platforms, counterweights) may
> be tough.
I'd really recommend against using anything but LEGO balls. If you just want to
play around and test, one good place to get a couple balls are the LEGO NBA sets.
I've seen them on sale all over.
Using any other type of balls will not give you a good test of exactly how soccer
balls will operate in a machine. I'm 100% sure of that.
Steve
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Message has 1 Reply: ![](/news/x.gif) | | Re: The Great Ball Contraption
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| (...) Over time, as I gaze at my collection of parts, notably as my interests change, and curiosity is peaked, I realise that the floccinaucinihilipilification parts, such as soccer/basketballs, now are not only useful but in serious demand. I guess (...) (19 years ago, 8-Jan-05, to lugnet.robotics)
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Message is in Reply To:
![](/news/x.gif) | | Re: The Great Ball Contraption
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| (...) Well, it's LEGO - it's just a tad smaller than 2 studs in diameter. If you've got a marble or wooden ball that will roll between two walls two studs apart (clearance about 1.5 mm on each side) you've got the size. The only real problem is (...) (19 years ago, 7-Jan-05, to lugnet.robotics)
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94 Messages in This Thread: ![The Great Ball Contraption -Steve Hassenplug (7-Jan-05 to lugnet.robotics, lugnet.technic, lugnet.trains, lugnet.events.brickfest, lugnet.events, lugnet.announce)](/news/x.gif) ![](/news/246.gif) ![Re: The Great Ball Contraption -David Koudys (7-Jan-05 to lugnet.robotics)](/news/x.gif) ![](/news/46.gif) ![Re: The Great Ball Contraption -Steve Hassenplug (7-Jan-05 to lugnet.robotics)](/news/x.gif) ![](/news/246.gif) ![Re: The Great Ball Contraption -David Koudys (7-Jan-05 to lugnet.robotics)](/news/x.gif) ![](/news/246.gif) ![Re: The Great Ball Contraption -Rob Antonishen (7-Jan-05 to lugnet.robotics)](/news/x.gif) ![](/news/46.gif) ![Re: The Great Ball Contraption -Brian Davis (7-Jan-05 to lugnet.robotics)](/news/x.gif)
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