Galileo 2012!

[Travis Hoffman]

Originally Posted by slijin

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.

[hammerhead_399]

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

[Bjensen2928]

Originally Posted by Clinton Bolinger

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)

[S.P.A.M.er]

Originally Posted by Gary Dillard

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.

[IKE]

Originally Posted by Rashek

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 .

[akoscielski3]

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!

[rick.oliver]

1038 at Smoky

[E-Stop]

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.

[gyroscopeRaptor]

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

[efoote868]

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

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

[EnTech281]

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

[akoscielski3]

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.

[rainbowdash]

How is OPR calculated?

[efoote868]

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.

[CNettles11]

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