Being realistic, I’d say that that’s impossible.
If you were to somehow design an /incredibly/ accurate robot who could make 75% of its shots, you would still have to fire off fifteen shots in 6.8 seconds (less than 7) or 2.205 balls per second. And 75% is not realistic for an acuracy measure.
I would say a challenge could be to:
carry x balls (suggestion: 35-40)
make y% accuracy with a shooter(suggestion: 70%) (within some reasonable amount of time, though not really timed)
What about scoring on your goal from the platform below it? There was lots of debate how this would never work before.
Personally, I’m going to be looking for these two things. I bet they’re even feasible.
One robot scoring all 10 balls to the center during autonomous.
A robot with a completely automated vision and aiming system, who can score >10 consecutive balls to the center during human player mode. And I’d want to see these shots taken from at least a few different places on the field.
I second that objective (notice i bolded and underlined “without” using a dead reckoning system).
First team to do it wins.
Let the games begin.
I’d agree with that one. We measured the distance, and it was really far. I doubt someone could make 5 consecutive shots even without the wall in front of them.
I’d say hitting the goal on the move, when not moving either parallel or perpendicular to the goal, so at some other angle than dead on or straight across as those are easy to account for, but when you not only change distance to the goal but also angle to it, thats tough, we thought about it, and it turns into such a painful calculation, it’s probably one of the hardest feats in this game, whether in autonomous or in human mode.
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.
I think you guys aren’t taking everything into account when you say that 10 balls in 7 seconds is impossible. What about a 2 or even scarier 4 barrel launcher! We’d see some fast scoring.
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
for a little persepective on this, the max airspeed of the ball is 12 meters per second
if you fire balls at one second intervals they will be 12 meters apart in flight
thats ~40 feet apart. in the world of launched projectiles that is a HUGE space
I can visulalize balls flying through the air 2 meters apart, and all going in the goal - at 12 m/s that 10 balls in 1.66 seconds!
Its very easy to get tunnel vision, and only think of the problem in terms of what a human being can do
we need to think of this in terms of what a machine can do. A machine with a computerized targeting system, and 2HP at its disposal.
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!
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.
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.
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:
That is a good point… But with a flywheel that big, you won’t be manuevering much youself!
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). 
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.
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.
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
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…