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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Thu, 20 Jan 2005 06:22:57 GMT
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Viewed:
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4284 times
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What’s funny is the other day I was thinking of building a marble machine with
LEGO. After reading about this contraption system, I got super-motivated and
built myself a ball pump last night. I only spent a few hours on it, but I think
I have it pretty much perfected . . . it’s jam-proof if the marbles come once
every second or so. And even if it does jam, a clutch gear protects my old 9V
motor (which is geared down considerably). It’s built pretty solidly; all I have
to test my stuff are glass marbles, which are pretty heavy in large numbers.
Tonight I started a few conveyor belt designs, and keeping tension in the tread
links is proving difficult. Any ideas on how to do that?
I’m also working on a rollercoaster-type track with the ribbed tubes from my
Mindstorms sets. Building a framework to support it is trickier than I thought
it would be.
I definitely plan to attend Brickfest to add my contribution to the Great Ball
Contraption. I’m going to need someone to send me some soccer balls, please. I
don’t have any LEGO Sports stuff at all.
One suggestion for people: I don’t like mystery mechanisms. I like to see how
stuff works, so please build your stuff with as many internal parts visible as
possible. For example, the stairs are mysterious until you see them from the
bottom -- a cam shaft is the secret. Get rid of the walls and I’ll be happier.
:)
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Message has 2 Replies:
 | | Re: The Great Ball Contraption
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| (...) Wow, nearly untouched territory... pumping Steve's... oh, never mind. On a more pratical note, does your pump meet the height requirement for the GBC? I've got two ball pumps working, but both have the same problem - allowing room under the (...) (20 years ago, 20-Jan-05, to lugnet.robotics, FTX)
| | | Re: The Great Ball Contraption
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| (...) We look forward to seeing you there... (...) E-mail me your address. (...) I really like to build my stuff with a very clean look. That usually means hiding all the inner workings. That's why the stairs looked like this in my first build: (...) (20 years ago, 20-Jan-05, to lugnet.robotics)
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Message is in Reply To:
| | The Great Ball Contraption
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| In an attempt to provide Technic & Mindstorms builders the same cooperative building opportunity that's available to Moonbase, Castle, and Town/Train builders at Brickfest, we present to you: The Great Ball Contraption. When it's assembled at (...) (20 years ago, 7-Jan-05, to lugnet.robotics, lugnet.technic, lugnet.trains, lugnet.events.brickfest, lugnet.events, lugnet.announce) !!
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