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-   -   What is the hardest (yet possible) task in this year's game? (http://www.chiefdelphi.com/forums/showthread.php?t=41452)

spamified88 10-01-2006 21:21

Re: What is the hardest (yet possible) task in this year's game?
 
How about a robot accurately scoring over 90% of the shots they take in a match? That sounds possible, but all comes down to how your robot and your driver cooperate. Cooperation between man and machine, SWEET!

Andrew Blair 10-01-2006 21:30

Re: What is the hardest (yet possible) task in this year's game?
 
May I add, 2 horsepower of FLYWHEEL FURY!

I'm actually kinda worried this year about randomly exploding throwing mechanisms. If designed incorrectly, flywheels have a nasty tendency to use their energy in a destructive manner. We recently found this out for real, after yesterday, watching a 1 lbs flywheel literally float on a concrete floor. Luckily, it floated, upright and spinning, away from us, behind some drawers, where it made indescriminate banging noises as it came to a stop from several thousand RPM. Scary. FIRST has never dealt with this sort of stored energy being so easily released in such a small package.

Sachiel7 10-01-2006 21:43

Re: What is the hardest (yet possible) task in this year's game?
 
Our defense strategy will be the hardest posiible play this year.
I won't say what it is because noone else here on CD has thought of it.

KenWittlief 10-01-2006 21:44

Re: What is the hardest (yet possible) task in this year's game?
 
I see lots of potential for secondary functions here.

If you get a big flywheel spinning inside your robot, it will be impossible for it to tip over! :ahh:

Andrew Blair 10-01-2006 21:47

Re: What is the hardest (yet possible) task in this year's game?
 
That is a good point... But with a flywheel that big, you won't be manuevering much youself!

Amisca 10-01-2006 22:02

Re: What is the hardest (yet possible) task in this year's game?
 
I would say the challenge should be to be able to put all ten balls in the center goal and make pizza for everyone (or some kind of food). :P

JakeOfIron 10-01-2006 22:02

Re: What is the hardest (yet possible) task in this year's game?
 
Yeah, the goal may be thirty inches wide, but with three 'bots shooting at the center goal I'd be surprised if even fifteen of the balls didn't hit another ball and miss. I say theres no way to get a hundred in autonomous.

Phalanx 10-01-2006 22:19

Re: What is the hardest (yet possible) task in this year's game?
 
Here's my evil thought for what it's worth.

Autonomous mode Shoot 10 balls in the center goal, tracking with the cam while move across the entire width of the field.

JoeXIII'007 10-01-2006 22:25

Re: What is the hardest (yet possible) task in this year's game?
 
The hardest possible task in this year's game? I would really love to see at least one team that can SMOOTHLY and ERRORLESSly 1. gather poof balls, 2. store them in a bank of some sort, 3. load some in the launching mechanism AND into the lower goals, 4. Aim for the Center high goal, and 5. Fire and hit nothing but air in between the 30 inch circle.

Other than that, perhaps the other hard but possible task is to find a winning strategy to play all defense.

In the three years I've been a member of FRC, this is the first game that I have had headaches thinking up solutions. :eek:

-Joe

Nuttyman54 10-01-2006 23:21

Re: What is the hardest (yet possible) task in this year's game?
 
Quote:

Originally Posted by 65_Xero_Huskie
well, i think the hardest thing to do this year would be to block the center goal shots...our team figured out one of the very VERY FEW ways to do it legally....but we couldnt do it due to power issues... :(, i was looking forward to it

would this be blowing the balls out of the way with air? we were going to try that until we though about the power requirements...

Olde Bill 10-01-2006 23:36

Re: What is the hardest (yet possible) task in this year's game?
 
Quote:

Originally Posted by Andrew Blair
Okay, couple things wrong here. First of all, assuming an autonomous challenge, you could, by yourself, only shoot ten balls. Now, That is a ball every 7/10 of a second, which (look at you watch) is not that short a period using a flywheel to throw them. Now, the challenge assumes that you SHOOT the balls in 7 seconds, so you get three second grace period to find and lock onto the target. Sounds pretty possible to me, especially if you did it without moving from your starting position.

With a fixed angle 'cannon' and the camera used only to aim the robot at the giant 30" hole, you should (if you maximize the height of the cannon and the muzzle velocity) be able to hit with all 10 balls. The only problem will be getting your throwing mechanism up to speed with enough sustainable momentum to complete firing in 10 seconds.

Arkorobotics 10-01-2006 23:39

Re: What is the hardest (yet possible) task in this year's game?
 
a wise man once told me:

"Dude, don't get to head of yourself" -some wise man

You don't have to do the center goal, and call it hard, getting those corner goals is hard enough too. Getting the ball is hard too. THIS WHOLE GAME IS A CHALLENGE, IT'S NOT EASY! :)

ngreen 11-01-2006 00:24

Re: What is the hardest (yet possible) task in this year's game?
 
I'd be interested to see a balled launched and then knocked out of the air by the opponents ball, intentionally.

If a team could figure out Star Wars I would be pretty impressed.

Donut 11-01-2006 00:32

Re: What is the hardest (yet possible) task in this year's game?
 
I don't know how quickly you could shoot balls, it really depends on the launcher you used, and how quickly you could feed balls to it. I think it's possible to get all 10 balls from 1 robot in the center, I think it would be difficult to get balls from multiple robots into that center goal. You would have to work an autonomous with them so that one would fire right after the other ended, or so the balls would "alternate" landing in the goal.

Since we're combining auton and normal challenges, here; a robot that can score all 10 balls into the center in autonomous (without dead reckoning), and that can shoot a ball into the center goal while moving from behind the half-court line during human controlled mode. I've calculated that a shooter at the 5' height limit firing balls at 12 m/s at a 45 degree angle could hit the target from roughly 44', neglecting resistance forces. Air resistance will decrease this, but I think you won't lose 10' due to it, so a half-court shot is do-able.

For more difficulty, it should be able to make a certain percentage of its shots as well.

Nuttyman54 11-01-2006 00:47

Re: What is the hardest (yet possible) task in this year's game?
 
Quote:

Originally Posted by ngreen
I'd be interested to see a balled launched and then knocked out of the air by the opponents ball, intentionally.

If a team could figure out Star Wars I would be pretty impressed.

We attempted this and did a few tests. An electric leaf blower could do it, but only if we tracked the ball on it's course (not very easy). Also, the power requirments were too great (it's only one 12V battery)
We also tried a garbage can Airzooka, but it didn't provide enough air power to reasonably and acurately push a ball, not to mention timing would be a real pain...all in all, we determined the concept was not reliable or feasible enough to merit basing a robot on it. If any other team can do this, MAJOR PROPS!!!


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