Chief Delphi - 148's "secret weapon"

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- - 148's "secret weapon" (http://www.chiefdelphi.com/forums/showthread.php?t=104151)

Re: 148's "secret weapon"

You cant do that. Because of the rules about bumpers - you can only extend something below your robot if your bumpers are at minimum height and even then you can only extend 3 inches down. This is why 148 didnt have theirs always touching the ground.

Re: 148's "secret weapon"

Quote:

Originally Posted by animenerdjohn (Post 1138501)

Please quote the rules that don't allow you to do this.

As far as this being allowed section 2.26 of the manual says that the bridges are 12 inches off the ground (measured from the top). Basic arithmetic dictates that 12inches is smaller than the 14 that you are allowed to extend from your frame perimeter by rule <R02>.

Re: 148's "secret weapon"

Quote:

Originally Posted by Garrett.d.w (Post 1138500)

If they fall more than 5 seconds after the match ends, then it doesn't matter.

FYP. See [G37].

Re: 148's "secret weapon"

This really isn't in the spirit of FIRST...that is...FIRST's ruling.

Way to penalize an innovative team. Not the first time FIRST has really dropped the ball.

A direct question about this was asked in the Q&A and completely ignored.

Re: 148's "secret weapon"

To answer questions regarding our drive train - two very large wheels located in the center of gravity of our bot. We've got three small wheels forward and back of both wheels - totaling to 12 small wheels - to assist in keeping us from rocking back and forth on the floor and aid in getting over the barrier. When on the bridge, we can hang our rear end all the way up to our CG, right where our two main wheels are. We can take up as little as 21''.

Re: 148's "secret weapon"

Quote:

Originally Posted by animenerdjohn (Post 1138501)

Quote:

The carpet, the Bridge surfaces, and Keys are considered the flat floors – and thus are the reference planes for the Bumper Zone requirements. A Robot in a transitory state of crossing onto/off of a Bridge or Barrier is not considered to be on a flat floor. - [R01-2] Team Update 1/20/02

Doesn't that mean you always measure bumper height from the bridge, as long as you are not touching the floor and it doesn't matter if you are touching both the bridge and floor since you would be in a transitory state between the bridge and the floor?

Re: 148's "secret weapon"

Quote:

Originally Posted by Garrett.d.w (Post 1138500)

The Robowranglers match where they fell off the bridge proved that you only need to be balanced at the end of the match (within the allowance). The strategy goes like this: You get all three robots on the bridge and assist the Balanchine using the pneumatic stinger. The stinger would be long enough so that it would fully balance the bridge. Just before the match ends, the robot code retracts it. Because everything with mass has inertia, it will take the bridge a certain amount of time to tip past the point that it is considered "balanced". If they fall after the match ends, then it doesn't matter.

This way, as long as the robots are close enough to balanced, they will be able to score bridge points.

Hopefully this made sense :P

The reason the Robowranglers alliance scored in that case was due to the fact that a robot from the opposing alliance touched them during the attempt and thus they received the balancing score.

For those of you who were looking for our magic jacks it looks like only 2 of you found the post so here is a hint it's in the post titled Bag Day Act III.

Re: 148's "secret weapon"

Quote:

Originally Posted by Mr V (Post 1138682)

The reason the Robowranglers alliance scored in that case was due to the fact that a robot from the opposing alliance touched them during the attempt and thus they received the balancing score.

That happened in F-1. I believe he's talking about F-3, where the Robowranglers spent 40 seconds trying to get 3 robots balanced when they only needed 2 to win. They failed several times, and eventually ended up tipping on their back in the last 5 or so sections and thereby losing the match and the regional.