Forum: General Forum
06-03-2010, 23:18
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Replies: 72
Views: 11,821
Re: Soccer Ball Sold Out
After the DC Regional, team 449 found an issue with not having access to an official ball.
We use a vacuum attachment for grabbing balls. It was working incredibly well with our Size 5 ball back in...
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Forum: General Forum
26-02-2009, 22:39
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Replies: 21
Views: 2,700
Re: Are you using duct tape?
Most of the "nerds" in our school are part of a duct tape cult. Needless to say, at some points during prototyping, entire designs were held together by duct tape.
We've since replaced almost...
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Forum: General Forum
07-10-2008, 13:56
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Replies: 4,808
Views: 1,188,635
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Forum: Technical Discussion
23-08-2008, 21:46
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Replies: 27
Views: 5,124
Re: Crazy Crates
Team 449 built a new crate last year (our old one was falling apart).
At competition, it splits in two to give pegboard space. We have separate rolling cabinets for extra parts that we put the crate...
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Forum: Technical Discussion
21-08-2008, 10:28
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Replies: 15
Views: 2,401
Re: Broken Belt
Thanks for the advice, guys. We'll mull it over for a while, but we'll hopefully use belt or direct drive next year.
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Forum: Technical Discussion
16-08-2008, 23:13
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Replies: 15
Views: 2,401
Broken Belt
Team 449 competed in the Battle o' Baltimore fairly successfully, but in the quarterfinals we snapped a belt, forcing us to compete with three wheels. With mecanum drive. I'm very proud of how well...
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Forum: General Forum
12-08-2008, 21:17
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Replies: 65
Views: 8,027
Re: Sport or not?
Wiktionary:
sport (countable and uncountable; plural sports)
1. (countable) Any athletic activity that uses physical skills, often competitive.
Oxford English Dictionary Online:
sport
• noun...
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Forum: Technical Discussion
29-06-2008, 11:56
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Replies: 7
Views: 1,417
Pneumatic Wheels
Team 449 is building a new robot cart and needs pneumatic tires. Does anyone know where to get reasonably priced pneumatic tires that we can attach a #35 sprocket? We are aiming for an 8''...
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Forum: Chit-Chat
28-06-2008, 18:45
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Replies: 4
Views: 1,134
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Forum: General Forum
19-06-2008, 17:50
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Replies: 48
Views: 7,688
Re: FIRST Team's featured in a movie
You're probably right, but this is still amazing! Gratz, Cybersonics and Daisy.
Why did you have to use you old bots? There are plenty of teams that would give and arm and a leg (or maybe a gear...
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Forum: Motors
19-06-2008, 17:21
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Replies: 13
Views: 2,503
Re: Usage of Motors and there crazy uses!
Team 449 used a pair of window motors to power our forklift. After gearing them down a little more with a pair of sprockets &chain, it started beating me in arm wrestling competitions.
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Forum: Games/Trivia
07-06-2008, 23:34
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Replies: 87
Views: 5,624
Re: The Game (Game)
I think you guys missed rule #1 of the game, which is "You are now playing the game." Knowledge of the game implies participation. Anyone who claims they are not playing the game is a cheater and...
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Forum: Motors
07-06-2008, 22:26
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Replies: 45
Views: 9,289
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Forum: Technical Discussion
31-05-2008, 16:24
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Replies: 44
Views: 4,957
Re: Types of Metal
What, exactly, is "ITEM?" I can't just google it cuz I get a million results about video games.
Our team has been extremely reliant on 80/20, with 1'' tube stock where we need to decrease weight. ...
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Forum: Extra Discussion
13-04-2008, 09:41
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Replies: 31
Views: 3,394
Re: Q&A Discuss: Girls on Teams
Our team is almost all boys, but we have five girls who come with some consistency. Of those five, one is President, one if vice president, and one is treasurer and head of scouting. If there's a...
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Forum: General Forum
17-03-2008, 20:56
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Replies: 159
Views: 17,269
Re: surefire ways to break you robot
Leave a flashlight on the robot. This happened to us in the quarterfinals at Trenton. Our robot crossed two lines in hybrid and then stopped. When our drivers tried to take control, one wheel...
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Forum: Technical Discussion
12-03-2008, 21:15
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Replies: 6
Views: 1,148
Re: Hubs
Thanks for advice, everyone. We'll be replacing the hub with a freshly machined one tomorrow. Hopefully it'll last us through the competition. Next year we'll use hex shafts.
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Forum: Technical Discussion
06-03-2008, 20:11
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Replies: 6
Views: 1,148
Re: Hubs
http://static.flickr.com/2376/2310564499_cc48603a77.jpg
Here's the best picture of it that I can get. My hand is conveniently over the area of interest.
The hub is rotating relative to the shaft. ...
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Forum: Technical Discussion
06-03-2008, 19:15
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Replies: 6
Views: 1,148
Hubs
Team 449 competed in Trenton last week and we felt we did pretty well, but one of our hubs kept coming loose. The hub connected to an arm of our forklift, so the 5 or so degrees it could move let...
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Forum: Robot Showcase
25-02-2008, 22:14
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Replies: 29
Views: 3,296
Re: 1565 Video "Twitch"
Really cool, but wouldn't it be easily pushable with those 90 degree omnis? Are you worried at all about getting shoved out of the way as you make your turns?
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Forum: Robot Showcase
25-02-2008, 10:29
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Replies: 6
Views: 1,960
Re: pic: 1249 finished RoboRat
Nice! We were working on a claw-arm system that looked almost identical to that, except we were using pneumatics everywhere. What kind of gear ratios are you using to lift that arm and how fast...
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Forum: Team Organization
21-02-2008, 10:35
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Replies: 8
Views: 1,470
Re: Build/Meeting Spaces
Our team gets to use a modest sized tech lab in the school, complete with a small computer lab attatched. The only power tools we have are a bandsaw, power sander, drillpress, and a chopsaw. We...
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Forum: Robot Showcase
05-02-2008, 10:27
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Replies: 12
Views: 2,255
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Forum: Extra Discussion
01-02-2008, 11:08
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Replies: 33
Views: 6,102
Re: pic: Electrical team is so messy
I remember last year our captain of electronics went zip-tie happy and tied down every single wire on our board 4 weeks in. In the next two weeks we had to cut every single friggin tie to find out...
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Forum: Motors
01-02-2008, 08:24
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Replies: 5
Views: 913
Re: efficiency- motor vs. pnuematic
In terms of efficiency for a single movement, motors are more efficient than pneumatics. This is because your compressor is driven by a motor which gives it all the inefficiencies of a motor drive. ...
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How many robotics kids does it take to turn on a light? - demosthenes2k8 [more] 
