How does descoring work?

[Boothy180]

Originally Posted by lukevanoort

Because of the 80" operating size restriction, I don't think that'll work either.

Yet, in the animation, a blue bot does this at around 2:57

[lukevanoort]

Originally Posted by Boothy180

Yet, in the animation, a blue bot does this at around 2:57

The game animation is not an official rulebook and infractions have already been noted in it.

[GearsOfFury]

Originally Posted by Brandon Holley

Heres something interesting..

If you look at the game animation, a red robot OBVIOUSLY exceeds the 6 foot mark in the blue alliances homestretch. Its at 1:52 in the animation. This contradicts the rule.

Reading all of these posts, and seeing the clear violation in the video, makes me wonder if the rules are meant to be different in Hybrid mode? Otherwise, you'd be the only one who could knock off the opposing team's ball from the start, and there'd be no reason to ever knock it down...!

Of course, later in the video, the blue robot reaches around in *front and over* where it's going, before it gets to the home stretch... seems like an easy way around this all if you're willing to build an arm that can reach that far!

[keenanmolner]

Originally Posted by Brandon Holley

Heres something interesting..

If you look at the game animation, a red robot OBVIOUSLY exceeds the 6 foot mark in the blue alliances homestretch. Its at 1:52 in the animation. This contradicts the rule.

So, Is it that you can only get your trackball down during Hybrid mode? because if you try to get it down in the main time period, you have to reach up 6'6" to get it down. that breaks rule <G36>. Also, during the final period of time, you are "encouraged" to knock down opposing teams trackoballs. can you only do that if they put their trackball on their side?

[GBIT]

given a trackball center at (0,0)
given a trackball contact point with a rail at (16,y) (the rails are 32" apart)
given the trackball is 20" and assuming it remains approximately spherical, then...

x^2 + y^2 = r^2
16^2 + y^2 = 400
y^2 = 400 - 256
y = 12

So the contact point for the rails will be 12" below the center of the ball. This means that between the rails, the bottom of the ball should be 8" below them, and thus 2" below the maximum allowed height of a robot in the opponent zone. However, this is in an ideal world where the rails are infinitely thin and the ball is perfectly sperical. Since the rails are 1.5" wide and the ball will deform some, the ball may be slightly higher than where I computed it to be, and the contact space for a robot will be very, very small.

Originally Posted by Bongle

Posted this in a couple other threads today.


Glad to hear someone did the actual measurement and it was close

Here's a diagram:
http://www.chiefdelphi.com/forums/at...4&d=1199558995

Umm. Hope not too many people used this number because our team found it to be wrong. We noticed the the equation above used numbers assuming the ball was on center with the pipes. this is not true seeing that the ball rests on the top of the pipes. We found the hang to be (assuming the the 6.5' overpass is on center with the pipes) it would hang only 1.5 inches below the 6' legal limit. If the 6.5' is at the bottom of the pipes it would hang only .67 inches from the 6' limit. this is assuming the the ball in of 40" diameter.



here is the diagram:
http://www.chiefdelphi.com/forums/at...6&d=1199655203