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-   -   1986 2-Ball Autonomous (http://www.chiefdelphi.com/forums/showthread.php?t=147493)

Chris is me 21-04-2016 14:20

Re: 1986 2-Ball Autonomous
 
Quote:

Originally Posted by Jay O'Donnell (Post 1576637)
I assumed it was more so another team couldn't steal the second ball away as easily.

I don't think I've seen a single team line up their robot in front of their opponent's secret passage, nor have I seen any counter-autonomous modes just to stop that one ball from being scored. After all, the crossing points they lose is equal to the points they deny in the two ball auto routine anyway. It is definitely done this way to require less accuracy and less chance of a penalty after the first ball is scored.

Nathan Streeter 21-04-2016 15:02

Re: 1986 2-Ball Autonomous
 
Congratulations to another team that's been able to make the two-ball!! Hope you can make it work at CMP too.

Quote:

Originally Posted by Chris is me (Post 1576646)
It is definitely done this way to require less accuracy and less chance of a penalty after the first ball is scored.

This is definitely the reason all two-ball teams drop their starting ball to score the midline ball first.

aphelps231 21-04-2016 15:07

Re: 1986 2-Ball Autonomous
 
Quote:

Originally Posted by jvriezen (Post 1576634)
I'd like to see IRI allow shooting from the neutral zone but only during autonomous. Then we could see >2 boulder autonomous and boulder wars.

Tall robots with high powered turrets and fast intakes and ball transportation from intake -> shooter would be perfect for this. And it would make defense selection interesting :D

BenHildy 21-04-2016 15:32

Re: 1986 2-Ball Autonomous
 
Very impressive! I have a question though. How is this accomplished? Is it simply that ball ends up in nearly the same place every time, or is it using some sort of shape-tracking software to locate the ball? I assume, based on the straight path of the robot, that it is the former, but I wanted to be certain. Good job guys, and keep up the great work!

RoboChair 21-04-2016 16:04

Re: 1986 2-Ball Autonomous
 
Yes, the ball drop and roll against the wall is very consistent in where it comes to a stop. Ours usually roll to a stop within an area about 18 inches square.

jspatz1 21-04-2016 16:10

Re: 1986 2-Ball Autonomous
 
Quote:

Originally Posted by BenHildy (Post 1576684)
Very impressive! I have a question though. How is this accomplished? Is it simply that ball ends up in nearly the same place every time, or is it using some sort of shape-tracking software to locate the ball?

If dropped very consistently the ball comes to rest in a fairly repeatable spot, within the width of the intake.

BenHildy 21-04-2016 16:15

Re: 1986 2-Ball Autonomous
 
Quote:

Originally Posted by jspatz1 (Post 1576708)
If dropped very consistently the ball comes to rest in a fairly repeatable spot, within the width of the intake.

That's very interesting! I have seen the other previews of two ball autos (254, 1678, etc) and they all seem to be similar. I am honestly very excited to see these face off at the championships and I believe you guys are up there with the best of them! Great job and good luck!

Jean Tenca 21-04-2016 17:59

Re: 1986 2-Ball Autonomous
 
This is awesome! Really clever solution to pinch the ball like that at the start. Looking forward to seeing you at worlds!

Lil' Lavery 21-04-2016 18:03

Re: 1986 2-Ball Autonomous
 
Not really related, but as another team using the same times as you are (albeit ours are yellow) in an 8WD configuration, I'm curious what pressures you're running your wheels at.

jajabinx124 21-04-2016 18:51

Re: 1986 2-Ball Autonomous
 
Sweet auto! I'm impressed. I've always admired the bots 1986 makes ever since I noticed them at newton in 2013. I'm hoping we end up in the same division this year. See you guys at worlds regardless.

jspatz1 21-04-2016 21:17

Re: 1986 2-Ball Autonomous
 
Quote:

Originally Posted by Lil' Lavery (Post 1576764)
Not really related, but as another team using the same times as you are (albeit ours are yellow) in an 8WD configuration, I'm curious what pressures you're running your wheels at.

30 psi in the dropped center 4 and 20 psi in the corners.

Connor McBride 21-04-2016 22:31

Re: 1986 2-Ball Autonomous
 
I had a funny feeling that you guys would pull out a 2 ball auto. Very impressed with the machine. Can't wait to see you guys in action at champs!

-Connor

ns3517 21-04-2016 23:00

Re: 1986 2-Ball Autonomous
 
This is fantastic can't wait to see this in a match.

JB987 21-04-2016 23:30

Re: 1986 2-Ball Autonomous
 
Nice job guys, welcome to the club. ;)

MamaSpoldi 22-04-2016 10:39

Re: 1986 2-Ball Autonomous
 
It could just be because of the perspective of the video but it looks like your pickup roller enters "the volume above the midline" when you pickup the ball. Wouldn't this draw a foul based on G13?

Quote:

G13 During AUTO, ROBOTS may not enter the volume above the MIDLINE.
Violation: FOUL. If contact is made with an opponent ROBOT beyond the MIDLINE (either direct contact or transitive contact through a BOULDER), an additional FOUL is assessed and the opponent ROBOT is immediately awarded the CROSSING of the closest DEFENSE from the point of contact.




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