Subject:
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June 18th, 2011 SMART Meeting in Woodinville library
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Newsgroups:
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lugnet.org.us.smart
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Date:
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Sat, 4 Jun 2011 17:03:39 GMT
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Viewed:
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23886 times
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Due to the amount of interest expressed at the last meeting, we'll be having a
SMART meeting this month: on June 18th, at the Woodinville Library from 2 to
5pm. They only have a single meeting room, to the left in the lobby.
The purpose of the meeting is to prepare for the SMART display at BrickFest.
What we will need most are lots and lots of "DUPLO ball elevators". This is a
variation, a 'giant' version of the great ball contraption. Requirements are
that you accept a single DUPLO ball, starting near table level (we'll get the
exact height to you very soon) and be able to lift the ball, and drop it off at
a higher elevation. Any elevation gain is good as long as it's at least 3
inches, but the higher the better.
While only single balls are required to be lifted, there is a throughput
requirement which we have yet to formalize, but it will almost certainly require
you to lift balls in less than 10 seconds. An even more important requirement is
*reliability*! Balls cannot be dropped or lost for our display to work out the
way we want it to.
So start building a ball elevator today! You can use whatever mechanism you
like, stationary or mobile robots, or just mechanical devices (no NXT required).
You can lift a single ball then go back to get the next one, or you can have a
'chain' of ball lifting mechanisms where each ball gets lifted as it comes in.
You can have something like an escalator, or something like a back-hoe. But if
you build something that 'throws' balls, don't forget it needs to be 100%
reliable, and able to work for many hours without falling apart! (You'll have to
convince us that a ball thrower will work that reliably to be included in the
display. Not that you aren't welcome to build one anyway, just for fun!)
Looking forward to seeing you (and many interesting ball elevators) in two
weeks!
--
David Schilling
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