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Unread 10-01-2010, 21:20
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Question Re: Carrying <G44>

Question:

Would a funnel designed to catch returned balls so that they land right in front of your kicker be in violation of the <G44>? You aren't carrying the ball, just "influencing" its trajectory
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Unread 10-01-2010, 21:30
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Re: Carrying <G44>

Quote:
Originally Posted by hipsterjr View Post
Question:

Would a funnel designed to catch returned balls so that they land right in front of your kicker be in violation of the <G44>? You aren't carrying the ball, just "influencing" its trajectory
I'd ask the Q&A. My opinion? If you turn or back up as it falls down the chute, does the ball stay in the robot? if so, it's CARRYING
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Unread 10-01-2010, 21:34
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Re: Carrying <G44>

Quote:
Originally Posted by Chris is me View Post
I'd ask the Q&A. My opinion? If you turn or back up as it falls down the chute, does the ball stay in the robot? if so, it's CARRYING
It would fall right off the robot and not be in contact with the robot for more than a second. The funnel idea would just keep it from bouncing off the robot and flying across the field and make us chase it down.
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Unread 10-01-2010, 22:31
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Re: Carrying <G44>

Quote:
Originally Posted by hipsterjr View Post
Question:

Would a funnel designed to catch returned balls so that they land right in front of your kicker be in violation of the <G44>? You aren't carrying the ball, just "influencing" its trajectory
Remember that your robot must be entirely surrounded by bumpers, and since you cannot extend beyond the starting frame (ignoring last 20 seconds and tower touching...) any guides would lead the ball to simply hit your bumper and bounce away.

Any funnels that guided the ball on the inside of the bumpers would cause the ball to violate the 3" incursion rule beneath the robot (you could also get potentially flagged for interacting with game pieces above the bumper zone).

So I'd say you will end up with a penalty of some sort for this device, which one I don't know.
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Unread 10-01-2010, 22:43
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Re: Carrying <G44>

OK, let me word it this way...

All robots are encouraged to have some kind of slope so that balls don't get stuck or ride on top of the robot. All I am talking about is adding a sort of "tunnel" like cover to the slope that would make it like a tilted funnel. This would cause the ball to roll in front of us instead of bouncing away


excuse the quick rough drawing
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Last edited by hipsterjr : 10-01-2010 at 22:55. Reason: picture
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Unread 10-01-2010, 23:07
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Re: Carrying <G44>

I just wanted to clarify my original question. Again, I am aware the picture above is illegal with respect to bumpers and many other things. It's just meant to be a simple illustration.

What I am trying to figure out is - for the fraction a second that the ball is touching the robot and not touching the floor - is that a carry?

I think this will need to be answered by FIRST, but do appreciate all the responses.

I agree that robots will need some sort of covering (pyramid, dome, etc) to ensure balls bounce off the robot and can't be stuck.
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Unread 10-01-2010, 23:28
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Re: Carrying <G44>

Some manual definitions:

Quote:
POSSESSION: Controlling the position and movement of a BALL. A BALL shall be considered in POSSESSION if, as the ROBOT moves or changes orientation (e.g. backs up or spins in place), the BALL remains in approximately the same position relative to the ROBOT.
Quote:
CARRYING: POSSESSING a BALL that is not in contact with the FIELD.
According to this, a ball that merely bounces off the top of a robot is not considered POSSESSED. However a ball that would then pass through some sort of "funnel" would be considered POSSESSED while inside the funnel, and thus would incur a <G44> penalty. Any air herding device, regardless of whether it is within the bumper zone or at the edge of the robot, would cause a ball to be POSSESSED while in the air resulting in CARRYING.

With these definitions balls can bounce off of robots without penalties, so as long as you do not use something considered a MECHANISM you can strategically deflect balls (no funneling) with your robot as they fall from the ball return.
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Unread 11-01-2010, 00:35
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Re: Carrying <G44>

Can you draw a picture of where the ball lands?

If I'm thinkning what I think it is and it's basically just a flat slope with nothing else on it (ie if you turn it slides off, if you go backward it slides off) then I think it's legal (Q&A prevails of course)
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Unread 11-01-2010, 22:07
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Re: Carrying <G44>

It appears the possible loophole here is:
______________
POSSESSION: Controlling the position and movement of a BALL. A BALL shall be considered in POSSESSION if, as the ROBOT moves or changes orientation (e.g. backs up or spins in place), the BALL remains in approximately the same position relative to the ROBOT.

CARRYING: POSSESSING a BALL that is not in contact with the FIELD

<R19> ROBOTS must be designed so that in normal operation BALLS cannot extend more than 3 inches inside the FRAME PERIMETER below the level of the BUMPER ZONE.
______________

According to the definition, possession only happens if you move. Carrying includes the definition of possession, so if you're not moving, you're not in possession, you're not carrying. So your funnel would seem to work if you don't move during the period it is being funneled and you kick it from above the bumper zone

However, since they are playing off of a soccer analogy, I'm pretty sure they are intending for you to never do anything with the ball other than have it deflect off the top. Otherwise you could build a shooter that doesn't move.
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Unread 12-01-2010, 09:16
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Re: Carrying <G44>

Quote:
Originally Posted by lcoreyl View Post
It appears the possible loophole here is:
______________
POSSESSION: Controlling the position and movement of a BALL. A BALL shall be considered in POSSESSION if, as the ROBOT moves or changes orientation (e.g. backs up or spins in place), the BALL remains in approximately the same position relative to the ROBOT.

CARRYING: POSSESSING a BALL that is not in contact with the FIELD

<R19> ROBOTS must be designed so that in normal operation BALLS cannot extend more than 3 inches inside the FRAME PERIMETER below the level of the BUMPER ZONE.
______________

According to the definition, possession only happens if you move. Carrying includes the definition of possession, so if you're not moving, you're not in possession, you're not carrying. So your funnel would seem to work if you don't move during the period it is being funneled and you kick it from above the bumper zone

However, since they are playing off of a soccer analogy, I'm pretty sure they are intending for you to never do anything with the ball other than have it deflect off the top. Otherwise you could build a shooter that doesn't move.
I could be wrong, but I read the definition of possession slightly differently. I thought it meant that a ball is considered possessed if it would maintain approximately the same location relative to the robot IF your robot moved. For example, if I have a grip on it and don't move, it's still being possessed because it would satisfy the criteria if I DID move.

That's for the Q&A to decide, but that's how I read the rule.
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Unread 12-01-2010, 09:34
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Re: Carrying <G44>

Remember the NEXT RULE in the manual is <G45>

Quote:
<G45> Active BALL control - ROBOTS may not control BALL direction with active MECHANISMS above the BUMPER ZONE. Violation: PENALTY.

Last edited by Matt C : 12-01-2010 at 09:37.
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Unread 12-01-2010, 09:46
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Re: Carrying <G44>

Quote:
Originally Posted by Matt C View Post
Remember the NEXT RULE in the manual is <G45>
That is the source of the debate. Is a chute concidered "active"? We'll find out tomorrow.
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