Chief Delphi - Galileo 2012!

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- - Galileo 2012! (http://www.chiefdelphi.com/forums/showthread.php?t=105774)

Re: Galileo 2012!

Quote:

Originally Posted by slijin (Post 1161395)

Looks nice!

Was there a reason you never tried reversing the orientations of one of the long bots so that the CG was closer to the center than the edge?

3193's weight is actually front-biased a bit, so they were in the proper orientation. Note what happened whenever we applied forward force to the center robot later in the video - which way did 3193 tilt? :)

They do not have a stinger or bridge tender in the rear of their bot. There is actually not much at all back there - the internal guts of their bot are laid out very differently from ours. Plus the pivoting arms let either of us shift the CG further toward the front.

They might have had a similar result driving up backwards and tilting their arm all the way back, but I think we prefer this configuration; plus it was more symmetric and therefore looked cooler!

48's CG is very slightly rear of center, but with the stinger, we kinda need to be pointing that way. As you can see, we can hang quite a bit of the rear bot off the bridge and be comfortably balanced. Tilting the arm forward helps with stability. You can be assured we'll be pushing ours as far forward as possible, into contact with the center bot during any triple opportunities - we promise we'll be gentle!

For the record, the center "bot" in practice (donated by Team 46 ;) ) was close to a max length 28" widebot frame.

Re: Galileo 2012!

Recently an encoder for our shooter motors busted and we are in need of a new one. It is a US Digital S4-128-250-B-D. I have attached pictures for reference.

Link to original thread(with pictures): http://www.chiefdelphi.com/forums/sh...hreadid=105887

Message me or send us an email if you have one we can borrow.

We'll throw in a pair of free RoboProm tickets for whomever loans us an encoder if you want

Re: Galileo 2012!

Quote:

Originally Posted by Clinton Bolinger (Post 1160060)

This is what our scouters got so far:

8 Long
16 Long
25 Long
33 Wide
48 Long
103 Long
125 Long
148 Wide
180 Wide
237 Long
358 Wide
399 Wide
527 Wide
573 Long
744 Long
772 Long
801 Wide
815 Long
868 Long
1208 Wide
1323 Long
1350 Wide
1538 Long
1574 Long
1671 Wide
1714 Wide
1718 Wide
1732 Wide
1918 Wide
2016 Wide
2054 Long
2169 Wide
2220 Long
2337 Long
2377 Wide
2439 Long
2486 Long
2928 Long
3196 Wide
3322 Wide

Hope it helps.

-Clinton-

Edit: 2928 Wide,
thats what helped us with triple balancing in Seattle. (Olympic Field)

Re: Galileo 2012!

Quote:

Originally Posted by Gary Dillard (Post 1160810)

Hmmmmmmmmmm SPAM was #1 seed at both of their regionals, finalist in one and winner in the other, 2nd highest OPR & World ranking in the division, Joe's simulation seems to like them, yet noone posting seems to think they are a contender. They must be flying under the radar. I have a feeling that they may have kept a few tricks in their bag just for the Championship. It's been 10 years since their last Einstein appearance; could this be their year?

Yes It is time for a SPAM appearance in Einstein.

Re: Galileo 2012!

Quote:

Originally Posted by Rashek (Post 1160866)

I just wanted to post what my research ....

Next I added all the numbers together in order to come up with a grand total of points. I then arranged the grand totals in descending order. I came up with the following:

Team # HP BP TP Grand Total
2054 227 200 289 716
...
I am well aware of the fact that FRC Spyder doesn't count the elimination matches, and therefore this spredsheet isn't 100% accurate. This is my first time doing anything like this so any feedback woul be greatly appreciated.

I really like that you are looking at the data but... this is kind of bad math gone wrong scenario. As others have stated, you have two factors contributing to a lot of possible error.

#1 12 matches at FiM & MAR versus 8-10 matches most other regionals. If you normalize per match, you will get a much better metric.

#2 Alliance partners. The metric above can be highly dependent on alliance partners. When a robot is scoring around 2X the average, in theory they are only responsible for 50% 0f the points (2X+X+X)=4X & 2X/4X=50%...). Since MSC and MAR are "qualified" events, the average strength of the participant is significantly different from most regionals.

The general trends are often reasonable (highest scorer will be highest), but trying to sort with any sort of fidelity requires additional work.

Look at some of the normalizing functions (dividing by number of matches, normalizing to event strength...). Normalizing function have their own problems as well.
In 2010, from an OPR perspective, 3 robots all at an OPR of 2 (about 2X national average) could actually combine to be worth 8-10 pts. versus the predicted 6 pts. in a match doing zone strategy.
In 2011, at really deep fields, OPR was actually driven down as 60+60+60 would often equal 120 due to the digresive scoring last year. Thus teams taht had really good partners at a strong event might actually see their OPR go down as they more frequently got into the stronger digresive scoring regions .

Re: Galileo 2012!

Team 772 has a Robot Information/Overview page for all teams. Please take a look at it in the attachments below.

Something about our robot that I would like to point out for all teams is that it is Possible for us to triple balance! Our robot can hang 17" off the bridge, taking up only 22" of the bridge (with bumpers).

Good Luck to all teams at Championships!

Re: Galileo 2012!

To add to that list 342 is also wide but everyone should have that by now. Matches seem to be getting harder and harder. Anyone notice anything awesome in our division or anything that happened in the matches that was really cool? I know 342 and 537 co-oped in literally5 seconds with the robots hanging off the edge.

Re: Galileo 2012!

Does anyone know what's happening to 2169? They have sunk like a stone in the rankings.

Re: Galileo 2012!

Just ran the OPR for results so far, figured I'd post in case anyone is interested.

Code:

180        40.1219

33        37.0848

148        36.0994

868        35.0515

744        34.6639

25        32.9627

3103        30.8391

2054        30.2903

2016        29.8592

1718        27.9295

573        27.9071

3173        26.9689

3453        26.0827

1323        25.6239

48        24.566

1918        24.3989

2169        24.1908

801        23.4026

3322        23.2505

269        23.1771

16        22.8063

1732        21.7211

1574        21.6791

4394        21.6502

2928        21.5575

4372        20.6242

1714        20.2901

3142        19.7537

2486        19.5091

1583        19.4965

231        19.2465

1305        19.2262

2439        18.8826

492        18.4234

1038        18.2836

237        17.9422

1350        17.7897

358        17.6638

1538        17.1042

2337        17.0359

1671        17.0301

533        16.9463

1208        16.3586

2010        15.841

3574        15.5875

4057        15.1774

1425        15.1184

3530        15.0245

3925        14.4958

103        14.0242

870        13.5901

2220        12.1548

384        11.9665

815        11.8108

4159        11.7794

1262        11.6797

2339        11.6545

771        11.647

125        11.552

766        11.4937

568        11.4033

527        10.892

8        10.4584

1011        10.1324

2158        9.94262

1515        8.75977

772        8.74136

3196        8.49061

2377        8.41885

281        8.15301

399        8.13106

296        8.07278

2090        8.0171

585        7.3832

1747        7.37449

69        7.27027

1382        6.77873

4146        6.55601

342        6.45622

4031        6.24064

3189        6.22137

3931        5.64647

3784        5.46039

2642        5.3852

4099        5.33062

1831        4.97288

3259        4.67095

2341        4.53083

168        4.27748

263        4.17336

4090        3.96362

4013        2.61065

151        1.94046

4083        1.72622

4028        1.13921

1108        0.975128

2704        0.153195

1212        -1.52536

4353        -3.85425

3981        -5.01059

Re: Galileo 2012!

Who are people thinking about picking? Any sleepers? <3 281 strategy meeting

Re: Galileo 2012!

We finally got everything worked out on our robot and had a great last match with 148! 21-72 (us). We will be ready for Eliminations tomorrow and are back to our FULL Potential.

Re: Galileo 2012!

How is OPR calculated?

Re: Galileo 2012!

As far as I understand it, it's a bit of linear algebra. Every match played at an event is loaded into a matrix, and then an attempt is made to find the best solution (the number of points a team contributes to the match).

You can read more about it in this thread
http://www.chiefdelphi.com/forums/sh...threadid=75272

There's also a presentation by Dr. Ed Law on theredalliance.com, under scouting.

Re: Galileo 2012!

180, 25 and 16 are moving on to Einstein from Galileo.