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Usually, in May we run our Indy 5.00 event, but this year we're going to push
the date back a few weeks, and run it AFTER the "real" Indy 500.
This year, Indy 5.00 is going to be one of the Mindstorms Challenges at
Brickworld (http://www.brickworld.us)
The final rules will be posted soon, but I believe they will be basicly the same
as in past years...
http://cobweb.ecn.purdue.edu/~andy/LAFLRC/Indy5.00_Rules.pdf
I'm working on a new source for mats, so people may be able to purchase pratice
mats.
But now, start designing...
Steve
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Last weekend, we took a few robots over to the Central Illinois Robotic Club's
annual Bot Brawl. We had a bunch of fun and some pretty good results.
But, as usual, they are trying to figure out how to change the rules so this
doesn't happen again...
http://www.youtube.com/watch?v=sbYyPHBVr7Y
:)
Steve
ps, the kid in the yellow shirt is my son, who just lost to his grandmother.
When asked what he thought, he said he was proud of her.
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In lugnet.org.us.laflrc, Steve Hassenplug wrote:
> We had a small gathering to test out stuff for our upcoming remote control Rock
> Crawling event at Brickworld.
>
> This should be fun at Brickworld (http://www.brickworld.us)
>
> Steve
Hi
My son wanted an "real RC car" so I took the RC buggy body and made a few
changes to have a final result. It is a 4x4 truck driven with 2 RC motors, and I
adapted the RC steering mechanism for the front drive.
It's very large, and quite slow (reduced 45-1), but very strong. Unfortunately,
There is no tilt point or suspension, and it has a tendency to spin if one wheel
if lifted in the air.
The good side is its manoeuvrability (right word???) both for steering and the
distance from the comand. (I can be far away and still have a response)
On the first try, I had the differential in last reduction, but the inside gear
broke... so I had to put the diff one step earlier:
http://www.brickshelf.com/cgi-bin/gallery.cgi?i=2333020
Anyhow, the whole experience has been a LOT of fun.
There is a few pics on this folder after mod:
http://www.brickshelf.com/cgi-bin/gallery.cgi?f=235560
I did 2 more funny constructions, but no pics available yet.
LMKWYT, JM
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At 12:04 PM 2/7/07, Peter Ehrlich wrote:
> Heres a thought. Just have the slope going in the other
> direction. That way when it lifts, the balls keep rolling the same
> direction. (Faster and efficient!) If the raising is too bumpy,
> just find a way to place a third or fourth overhead rail keeping the balls in,
One down side here, is that the "ball-lift" must be shut-off when the
bridge is raised, and the controller for the ball lift is on the
"bridge" (other) side of the opening. But, along those lines, if
there is a bin to catch lose balls, the bridge could just lift up,
and disconnect the ramp at both ends. Then, when the bridge is on
it's way up, balls just roll back across the ramp to where they
started, and into a holding area...
Steve
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In lugnet.robotics, Brian Davis wrote:
> Not sure what you mean here. I was just picturing a permenant gently-sloping
> rail along the entire upper superstructure of the span, fixed in place (it would
> look something like a loooong shallow diagonal spar or cable span). With the
> bridge down, the slope is right to carry the balls across. As the bridge tilts
> up it obviously wouldn't work (wrong angle; any balls that are on it would roll
> the wrong way), but that's why you'd need the RCX to stop the lift mechanism a
> little before the actual tilting of the bridge span. I admit I was picturing the
> ball stream as being "lifted" on the end that has the pivot, and the "low" end
> to the far side (left, in most of your pictures), but it should work in either
> case.
Heres a thought. Just have the slope going in the other direction. That way when it lifts, the balls keep rolling the same direction. (Faster and efficient!) If the raising is too bumpy, just find a way to place a third or fourth overhead rail keeping the balls in,
Unloading the balls at the other end take some engineering. You could have the
rail mounted near the rotation point, (and possibly lower the rotation point and
put on a heavier weight). Or you could use about a foot of flex tubing to make
it all work far away from the bridge's rotation point. See what I'm saying?
Nice work by the way :-)
--Peter
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