Go to Post Ah, the FIRST Community, aka The Land of Little Patience :) - Jessica Boucher [more]
Home
Go Back   Chief Delphi > FIRST > General Forum
CD-Media   CD-Spy  
portal register members calendar search Today's Posts Mark Forums Read FAQ rules

 
Reply
Thread Tools Rate Thread Display Modes
  #1   Spotlight this post!  
Unread 31-03-2003, 20:05
Alaina's Avatar
Alaina Alaina is offline
J = Pf - Po
FRC #0814 (Megaforce Squadron)
Team Role: College Student
 
Join Date: Mar 2003
Rookie Year: 2003
Location: Napa, CA
Posts: 715
Alaina is a splendid one to beholdAlaina is a splendid one to beholdAlaina is a splendid one to beholdAlaina is a splendid one to beholdAlaina is a splendid one to beholdAlaina is a splendid one to beholdAlaina is a splendid one to behold
Send a message via AIM to Alaina
Successful Stack Stealers

I always knew they existed, but I hadn't even heard of stacks being successfully stolen. But at SVR team 115 stole a stack of 2, went over the ramp with it and placed it in their scoring zone. I can't quite remember whether is stayed or not but I was very, very impressed. Has anyone else heard of/seen stacks stolen?
__________________
"It's cool to be a geek!" -- Dave Lavery
"It's all about the math." -- Mark Leon
Reply With Quote
  #2   Spotlight this post!  
Unread 31-03-2003, 20:26
Unsung FIRST Hero
JVN JVN is offline
@JohnVNeun
AKA: John Vielkind-Neun
FRC #0148 (Robowranglers)
Team Role: Engineer
 
Join Date: May 2001
Rookie Year: 2000
Location: Greenville, Tx
Posts: 3,159
JVN has a reputation beyond reputeJVN has a reputation beyond reputeJVN has a reputation beyond reputeJVN has a reputation beyond reputeJVN has a reputation beyond reputeJVN has a reputation beyond reputeJVN has a reputation beyond reputeJVN has a reputation beyond reputeJVN has a reputation beyond reputeJVN has a reputation beyond reputeJVN has a reputation beyond repute
213 - Dirty Birds stole a 4 stack at BAE.
__________________
In the interest of full disclosure: I work for VEX Robotics a subsidiary of Innovation First International (IFI) Crown Supplier & Proud Supporter of FIRST
Reply With Quote
  #3   Spotlight this post!  
Unread 31-03-2003, 20:46
Arrowsmith Arrowsmith is offline
Turbocharged Reject
AKA: Mark Arrowsmith
#0382 (EA Team (Subject to Change...A lot))
Team Role: Leadership
 
Join Date: Mar 2003
Rookie Year: 2003
Location: Columbus, Ohio
Posts: 129
Arrowsmith will become famous soon enoughArrowsmith will become famous soon enough
Send a message via ICQ to Arrowsmith Send a message via AIM to Arrowsmith Send a message via Yahoo to Arrowsmith
We stole a stack of three at Chicago.
__________________
"Hey Mark, while you're out scouting, tell the other teams our robot has a Flux Capacitor"
"No. Even if we did, we lack both the plutonium power supply and the motors necessary to reach the 88 mph requirement for time travel. Besides, the Infinite Improbablility Drive is way cooler than the Flux Capacitor."
(commence 20 min argument)
Reply With Quote
  #4   Spotlight this post!  
Unread 31-03-2003, 20:58
AJ Quick's Avatar
AJ Quick AJ Quick is offline
Your Attention Please
FRC #0006 (CogSquad)
Team Role: Alumni
 
Join Date: Oct 2002
Rookie Year: 2001
Location: Minnesota
Posts: 464
AJ Quick has a spectacular aura aboutAJ Quick has a spectacular aura about
We stole several stacks of 1.
__________________
-AJ Quick (Alum on Team 6)
http://www.HHSRobotics.com/

Place your attention entirely on my voice and try to ignore all the others. It is important to be able to focus on a single source of information while blocking out all the other things competing for your attention.
Reply With Quote
  #5   Spotlight this post!  
Unread 31-03-2003, 21:01
roboticscom13's Avatar
roboticscom13 roboticscom13 is offline
Registered User
no team
Team Role: Alumni
 
Join Date: Jan 2002
Rookie Year: 2000
Location: USA
Posts: 46
roboticscom13 is an unknown quantity at this point
At Philly team 357 Royal Assualt stole a stack of two or three in our last match and could do it again if needed.
Reply With Quote
  #6   Spotlight this post!  
Unread 31-03-2003, 21:12
Jupee Jupee is offline
Boilermaker
AKA: Julie Percifield
None #1646 (Precision Guessworks)
Team Role: College Student
 
Join Date: Mar 2003
Rookie Year: 1999
Location: West Lafayette, IN
Posts: 90
Jupee is an unknown quantity at this point
Send a message via AIM to Jupee Send a message via Yahoo to Jupee
We've definitely dirty-snatched at least three or four stacks thus far. Just you wait til nats--we'll be doing the same old stuff
__________________
Proud to be a Boilermaker!!

Danger Deej rocks my world!
Purdue Women's Club Soccer homepage
*Your friends are the people who know everything about you and still love you*
Reply With Quote
  #7   Spotlight this post!  
Unread 31-03-2003, 21:30
dhendrix's Avatar
dhendrix dhendrix is offline
Registered User
#0538 (Dragon Slayers)
 
Join Date: Feb 2003
Location: Arab Alabama
Posts: 28
dhendrix is an unknown quantity at this point
We never had the opertunity to go over the ramp with a stack in St. Louis, but we did it in practice events. We have a Gyro programmed to a tilt that will keep the stack level as we go over the ramp at full speed. Really Cool.
Reply With Quote
  #8   Spotlight this post!  
Unread 02-04-2003, 22:36
Guyute Guyute is offline
Registered User
AKA: John Whelan
no team (West Side BoilerInvasion)
Team Role: Alumni
 
Join Date: Feb 2003
Location: West Lafayette
Posts: 78
Guyute has a spectacular aura aboutGuyute has a spectacular aura about
Send a message via AIM to Guyute Send a message via Yahoo to Guyute
why go over the ramp when you can simply drop the stack over the bar.
__________________
2nd Place in CURIE
Top 20 in the Nation


Everyone should Try HOOKAH!
Reply With Quote
  #9   Spotlight this post!  
Unread 02-04-2003, 22:43
OneAngryDaisy OneAngryDaisy is offline
not on CD enough...
no team
Team Role: Alumni
 
Join Date: Oct 2002
Rookie Year: 2000
Location: Rochester, NY
Posts: 785
OneAngryDaisy is a glorious beacon of lightOneAngryDaisy is a glorious beacon of lightOneAngryDaisy is a glorious beacon of lightOneAngryDaisy is a glorious beacon of lightOneAngryDaisy is a glorious beacon of lightOneAngryDaisy is a glorious beacon of light
Quote:
Originally posted by roboticscom13
At Philly team 357 Royal Assualt stole a stack of two or three in our last match and could do it again if needed.
Yeah that was awesome-you guys flew over the ramp and casually grabbed the stack on the fly..
Reply With Quote
  #10   Spotlight this post!  
Unread 02-04-2003, 22:56
activemx's Avatar
activemx activemx is offline
A M X
AKA: Akshay Dodeja
no team
Team Role: College Student
 
Join Date: Jan 2002
Rookie Year: 2000
Location: Portland, Oregon
Posts: 312
activemx is a glorious beacon of lightactivemx is a glorious beacon of lightactivemx is a glorious beacon of lightactivemx is a glorious beacon of lightactivemx is a glorious beacon of light
Send a message via AIM to activemx Send a message via Yahoo to activemx
YEs we stole..

actually MVRT stole stacks of 3 several times during the elimination rounds and stack of 2 during semifinals.. It survived every time it was stolen.
btw.. videos are here ~ http://www.chiefdelphi.com/forums/sh...threadid=19803

~ Akshay
__________________
2005 - Present - FIRST Volunteer(Inspector, Ref, Judge)
2000-2004 MVRT 115
Reply With Quote
  #11   Spotlight this post!  
Unread 03-04-2003, 00:02
codeoftherobot's Avatar
codeoftherobot codeoftherobot is offline
Safety General
FRC #1097
Team Role: College Student
 
Join Date: Mar 2003
Rookie Year: 2003
Location: Sacramento
Posts: 125
codeoftherobot has a spectacular aura aboutcodeoftherobot has a spectacular aura aboutcodeoftherobot has a spectacular aura about
The only problem with stack stealers is that their size can normally their downfall. If they want 3 or more boxes the center of gravity shifts when those extra boxes are taken on. Once they are at an angle on the ramp, the robot can be very unstable and prone to be knocked over if hit at the correct angle by another robot. If you are a stack stealer team, watch out for small quick robots since they can take you out really fast.
__________________


Sacramento Regional 2003 -Rookie All-Star Award
Silicon Valley Regional 2003 -Rookie All-Star Award
Sacramento Regional 2004 -Autodesk Visualization Award
Sacramento Regional 2004 -Regional Engineering Inspiration Award
Silicon Valley Regional 2004 -Johnson & Johnson Sportsmanship Award
Cal Games 2004 - Finalist (thank you 968 and 114!)
Sacramento Regional 2005 - #1 Seed Team Regional Finalist (with 254 and 114)
Sacramento Regional 2005 - Johnson and Johnson Team Sportsmanship Award
Reply With Quote
  #12   Spotlight this post!  
Unread 03-04-2003, 00:07
Solace's Avatar
Solace Solace is offline
Head Hurts. Coffee. More. Now!
AKA: Jake
#0571 (Team Paragon)
Team Role: Alumni
 
Join Date: Feb 2002
Rookie Year: 2001
Location: Windsor, CT
Posts: 569
Solace is a splendid one to beholdSolace is a splendid one to beholdSolace is a splendid one to beholdSolace is a splendid one to beholdSolace is a splendid one to beholdSolace is a splendid one to beholdSolace is a splendid one to behold
Send a message via AIM to Solace
you'd be surprised at how steady a robot can be even when holding four bins or so. We can go full speed over the ramp (12 ft/sec) while holding 4 bins without tipping, and can proceed to blow doughnuts. Its all about having a low CG to begin with - most robots who steal and protect stacks have innately high CG's, but there are some that manage it with a low CG.

If you're a team that has a problem with tipping, remember the all-powerful wheelie bar!
__________________
...What is a man,
If the chief good and market of his time
Be but to sleep, and tool? A nerd, no more.

2004 UTC New England #2 seed
2004 UTC New England Champions with 716 & 230
2004 Archimedes #2 seed, undeafeated in Qualifiers (for what its worth)


Jake
Team Paragon #571
Reply With Quote
  #13   Spotlight this post!  
Unread 03-04-2003, 00:07
jburstein jburstein is offline
Registered User
#0008
 
Join Date: Jan 2003
Location: Palo Alto
Posts: 21
jburstein is an unknown quantity at this point
MVRT also got themselves tipped over nearly every time they tried to cross the bridge with a stack. I saw them in 5 or so matches and they got tipped in 3 of them, and only narrowly avoided it in the other 2.
Reply With Quote
  #14   Spotlight this post!  
Unread 03-04-2003, 00:15
activemx's Avatar
activemx activemx is offline
A M X
AKA: Akshay Dodeja
no team
Team Role: College Student
 
Join Date: Jan 2002
Rookie Year: 2000
Location: Portland, Oregon
Posts: 312
activemx is a glorious beacon of lightactivemx is a glorious beacon of lightactivemx is a glorious beacon of lightactivemx is a glorious beacon of lightactivemx is a glorious beacon of light
Send a message via AIM to activemx Send a message via Yahoo to activemx
well the three matches we got tipped on it was not because we were moving stacs.. we were just hit by robots.. Though every time stole the stacks we did not tip over. Its true that stackers have High CG generally. WE do have a high CG but we dint tip over with a stack but now we our driver has faced and knows about the tipping broblem that we drive with our 4 bar out and support the 4 bar with caster. SO in that way we can never tip over. If you wanna see the thing im talking about check out our video. You can also see the cool Wheeeeliee up the ramp with stack of 3.

~ Akshay
__________________
2005 - Present - FIRST Volunteer(Inspector, Ref, Judge)
2000-2004 MVRT 115
Reply With Quote
  #15   Spotlight this post!  
Unread 03-04-2003, 01:31
Unsung FIRST Hero
Patrick Wang Patrick Wang is offline
Registered User
#0115 (MVRT Alumni)
 
Join Date: Oct 2001
Location: Cupertino, CA
Posts: 128
Patrick Wang has a spectacular aura aboutPatrick Wang has a spectacular aura about
Send a message via AIM to Patrick Wang
Steal and Protect.

Akshay forgot to mention that we also protect the bins from any attack. The bins are totally enclosed while in transit and while awaiting placement on the far side. The more important part is keeping the stacks alive rather than simple moving them over.

As for the tipping issue, watch our videos of our qualification rounds to see our high CG problem, and then watch the video of our Semi-Final round to see how we solved it. It was kind of a head-slapper, totally a driver issue. Lowering our 4-bar linkage increases our wheel base to about 60 in and lowers the center of gravity as well.

Expect us to be doing more of that in autonomous and driving overall, it's pretty hard to tip over for us when the linkage is down because 75% of our weight is already in the drive train and the other 25% gets lowered to only a few feet above.
__________________
Patrick Wang

WRRF
Reply With Quote
Reply


Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Beantown Blitz game change? Erin Rapacki Off-Season Events 31 18-06-2003 12:39
Stack Attack Artwork? kmcclary General Forum 3 02-06-2003 10:04
Highest stack DKolberg General Forum 32 27-04-2003 22:13
Initial stack height JJG13 Rules/Strategy 1 29-01-2003 21:04
Scoring when an opponent is in contact with your tallest stack. Randy Ai Rules/Strategy 1 06-01-2003 17:17


All times are GMT -5. The time now is 17:22.

The Chief Delphi Forums are sponsored by Innovation First International, Inc.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Copyright © Chief Delphi