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Unread 18-03-2003, 16:48
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Solace Solace is offline
Head Hurts. Coffee. More. Now!
AKA: Jake
#0571 (Team Paragon)
Team Role: Alumni
 
Join Date: Feb 2002
Rookie Year: 2001
Location: Windsor, CT
Posts: 569
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There are no sensors of any kind on our robot (besides limit switches) it can be done - our bot is living proof of that. (ok, so maybe not living...)

Ken is correct. changes in battery voltage do affect our autonomous mode. That's why we always put in a fresh battery before every match. That's easy to do in the qualification matches when there's time to charge up between matches, but in the finals we borrow competition batteries from other teams so that we can have enough.

boxes don't pose a problem. we've tested it succesfully with 4 boxes lined up behind it. more than that hasn't been tested, but i'd be surprised if another team could line them up in 10 seconds.

The front wheels are pneumatic and don't slip, but the back wheels are skyways and are supposed to slip.

Our bot starts backwards at an angle, goes straight in reverse, then makes a small correction to be lined up correctly and goes straight up the ramp and then makes a small correction before heading up the ramp at full speed. we have another program that lets us go in an arc, but it takes a good full second longer to get there. I'll see if i can dig up a movie of that or something.

sean, by the time we hit the wall we're going 12 ft/s. because we don't have any feedback, the RC doesn't have anything that it needs to keep up with.

For those out there who are still doubtful of dead reckoning, let me say that you were all correct - it is very difficult to do correctly. It took us three days of tweaking after the code was initially written before we could get it to work reliably. The tweaking was kind of random too - because it was difficult to predict what a programming alteration would do, we kinda just tweaked it at random until it tested out correctly.

We usually stick to our own side in order to not risk colliding with our alliance.
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2004 UTC New England #2 seed
2004 UTC New England Champions with 716 & 230
2004 Archimedes #2 seed, undeafeated in Qualifiers (for what its worth)


Jake
Team Paragon #571