Go to Post Doctor the drill, or doctor your hand. Easy choice. Let's all make the right one. - Molten [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 Rating: Thread Rating: 5 votes, 5.00 average. Display Modes
  #1   Spotlight this post!  
Unread 04-03-2013, 09:11
Jared Russell's Avatar
Jared Russell Jared Russell is offline
Taking a year (mostly) off
FRC #0254 (The Cheesy Poofs), FRC #0341 (Miss Daisy)
Team Role: Engineer
 
Join Date: Nov 2002
Rookie Year: 2001
Location: San Francisco, CA
Posts: 3,070
Jared Russell has a reputation beyond reputeJared Russell has a reputation beyond reputeJared Russell has a reputation beyond reputeJared Russell has a reputation beyond reputeJared Russell has a reputation beyond reputeJared Russell has a reputation beyond reputeJared Russell has a reputation beyond reputeJared Russell has a reputation beyond reputeJared Russell has a reputation beyond reputeJared Russell has a reputation beyond reputeJared Russell has a reputation beyond repute
Re: What we learned from week 1

G30 is called very inconsistently.

In eliminations, a lot of matches turned into 6 robot scrums at midfield, with each side trying to get back to their feeder stations with 1 or 2 bots while the other(s) played D.

The lower rung of the pyramid is a bit lower than everyone expected.

Being 1/32" of an inch off the ground is as good as being 27" off the ground.

The pyramid is FAR less rigid than I expected. Anyone attempting a 30 point climb, especially on the corner, better hold on tight.
Reply With Quote
  #2   Spotlight this post!  
Unread 04-03-2013, 09:16
Anupam Goli's Avatar
Anupam Goli Anupam Goli is offline
PCH Q&A co-founder
AKA: noops
FRC #1648 (G3 Robotics)
Team Role: Team Spirit / Cheering
 
Join Date: Dec 2010
Rookie Year: 2008
Location: Rochester, New York
Posts: 1,242
Anupam Goli has a reputation beyond reputeAnupam Goli has a reputation beyond reputeAnupam Goli has a reputation beyond reputeAnupam Goli has a reputation beyond reputeAnupam Goli has a reputation beyond reputeAnupam Goli has a reputation beyond reputeAnupam Goli has a reputation beyond reputeAnupam Goli has a reputation beyond reputeAnupam Goli has a reputation beyond reputeAnupam Goli has a reputation beyond reputeAnupam Goli has a reputation beyond repute
Re: What we learned from week 1

Quote:
Originally Posted by Jared341 View Post
G30 is called very inconsistently.

This. Had to exit in the quarterfinals because G30 wasn't called at all. We also had some bad planning and poor strategy on our part, and I don't think we would've gotten past semis, but I was absolutely furious when we lost our last match and the 3 infractions of G30 weren't counted, but one accidental instance of G36 was counted.
__________________
Team 1002: 2008-2012
Team 1648: 2012-2016
Georgia Tech Class of 2016
RIT Graduate Student, CompE
Reply With Quote
  #3   Spotlight this post!  
Unread 04-03-2013, 09:26
thefro526's Avatar
thefro526 thefro526 is offline
Mentor for Hire.
AKA: Dustin Benedict
no team (EWCP, MAR, FRC 708)
Team Role: Mentor
 
Join Date: Aug 2006
Rookie Year: 2005
Location: New Jersey
Posts: 2,599
thefro526 has a reputation beyond reputethefro526 has a reputation beyond reputethefro526 has a reputation beyond reputethefro526 has a reputation beyond reputethefro526 has a reputation beyond reputethefro526 has a reputation beyond reputethefro526 has a reputation beyond reputethefro526 has a reputation beyond reputethefro526 has a reputation beyond reputethefro526 has a reputation beyond reputethefro526 has a reputation beyond repute
Send a message via AIM to thefro526 Send a message via MSN to thefro526
Re: What we learned from week 1

Quote:
Originally Posted by Jared341 View Post
G30 is called very inconsistently.
For anyone competing in the coming weeks and planning on using the pyramid as a protected area, I suggest you keep the following handy:

Quote:
Originally Posted by G30
Regardless of who initiates the contact, a ROBOT may not contact an opponent ROBOT

contacting its PYRAMID or
touching the carpet in its LOADING ZONE.


Violation: FOUL. If purposeful or consequential, TECHNICAL FOUL. If an opponent's CLIMB is affected, each affected opponent ROBOT will be awarded points for a successful Level 3 CLIMB.
Quote:
Originally Posted by Q&A Q138

Q138

Q. G30 has different penalties if the act is consequential or purposeful. Please define 'Consequential' and 'purposeful' with respect to violations of G30 in the LOADING ZONE.

A. Consequential means the action has an effect on the outcome of the MATCH. Purposeful means the action was deemed intentional.
Quote:
Originally Posted by Q&A Q145

Q145

Q. Does this rule also apply to robots that are contacting the pyramid while shooting? That is to say, can a robot contact its pyramid to aim and shoot at its goals and consider this a "safe zone"? Or is this rule only active when climbing the pyramid?

A. [G30] applies regardless of what the ROBOT is doing, so long as it is contacting its PYRAMID.
I think it's very clear to anyone that reads G30, Q138 and Q145 that intentional contact between a robot touching it's pyramid or loading station and a defender/opponent is prohibited and the opponent will be penalized. With that being said, if you are shooting, and that contact causes one of your shots to miss, a technical foul should be assessed as the match score has now been changed (effect on the outcome of the match).

That being said, there was a certain degree of 'right of way' protection that was assumed to have been created by G30 - that being if you're touching/nearly touching the pyramid and attempting to play the game (score) you would more or less be allowed to do what was required to continue playing - which we were told was not the case. Whether or not this will be called uniformly across all events has yet to be seen...

I guess the TLDR here is to go over G30 in detail with the head ref if it's relevant to your strategy, whether it be climbing or shooting, and make sure that if you're touching the pyramid, that it's CLEARLY visible from all/most angles on the field. A few teams had little flags and fiberglass sticks that would deform when they were in contact which seemed to make things a bit easier.

Last edited by thefro526 : 04-03-2013 at 09:29.
Reply With Quote
  #4   Spotlight this post!  
Unread 04-03-2013, 09:33
Spatel7793's Avatar
Spatel7793 Spatel7793 is offline
City Slicker
AKA: Sameer Patel
FRC #4638 (Northwest Jagbotics)
Team Role: Mentor
 
Join Date: Feb 2011
Rookie Year: 2008
Location: New York, New York
Posts: 45
Spatel7793 is just really niceSpatel7793 is just really niceSpatel7793 is just really niceSpatel7793 is just really niceSpatel7793 is just really nice
Re: What we learned from week 1

Well after 1422 caught fire, I learned that Team 639 had the right idea in putting a smoke detector on their robot.
__________________
Guys...where's our robot?
Our motors will work 60% of the time ALL the time.

Is that a hammer...on your robot?
Reply With Quote
  #5   Spotlight this post!  
Unread 04-03-2013, 09:35
MikeE's Avatar
MikeE MikeE is offline
Wrecking nice beaches since 1990
no team (Volunteer)
Team Role: Engineer
 
Join Date: Nov 2008
Rookie Year: 2008
Location: New England -> Alaska
Posts: 381
MikeE has a reputation beyond reputeMikeE has a reputation beyond reputeMikeE has a reputation beyond reputeMikeE has a reputation beyond reputeMikeE has a reputation beyond reputeMikeE has a reputation beyond reputeMikeE has a reputation beyond reputeMikeE has a reputation beyond reputeMikeE has a reputation beyond reputeMikeE has a reputation beyond reputeMikeE has a reputation beyond repute
Re: What we learned from week 1

Quote:
Originally Posted by Jared341 View Post
The pyramid is FAR less rigid than I expected. Anyone attempting a 30 point climb, especially on the corner, better hold on tight.
It was also noticeable how the practice pyramid rigidity deteriotated as the regional progressed. By the end of qualifications it was significantly looser than the field pyramids. I suspect that absent some upgrades the field pyramids will become interestingly dynamic by Week 6 competitions.
Reply With Quote
  #6   Spotlight this post!  
Unread 04-03-2013, 09:53
Daniel Brim's Avatar
Daniel Brim Daniel Brim is offline
It's hard hat time here in Boston
AKA: DFB
FRC #0125 (NUTRONS)
Team Role: Engineer
 
Join Date: Feb 2003
Rookie Year: 2002
Location: Boston, MA
Posts: 938
Daniel Brim has a reputation beyond reputeDaniel Brim has a reputation beyond reputeDaniel Brim has a reputation beyond reputeDaniel Brim has a reputation beyond reputeDaniel Brim has a reputation beyond reputeDaniel Brim has a reputation beyond reputeDaniel Brim has a reputation beyond reputeDaniel Brim has a reputation beyond reputeDaniel Brim has a reputation beyond reputeDaniel Brim has a reputation beyond reputeDaniel Brim has a reputation beyond repute
Send a message via AIM to Daniel Brim
Re: What we learned from week 1

Quote:
Originally Posted by Jared341 View Post
The lower rung of the pyramid is a bit lower than everyone expected.
Do you have a specific measurement for the height of the first bar? Or at least a ballpark value?
__________________
2003 (2002) - 2006 -- Team 294, Beach Cities Robotics
2007 (2006) - Present -- Team 125, NUTRONS
Reply With Quote
  #7   Spotlight this post!  
Unread 04-03-2013, 09:59
Jared Russell's Avatar
Jared Russell Jared Russell is offline
Taking a year (mostly) off
FRC #0254 (The Cheesy Poofs), FRC #0341 (Miss Daisy)
Team Role: Engineer
 
Join Date: Nov 2002
Rookie Year: 2001
Location: San Francisco, CA
Posts: 3,070
Jared Russell has a reputation beyond reputeJared Russell has a reputation beyond reputeJared Russell has a reputation beyond reputeJared Russell has a reputation beyond reputeJared Russell has a reputation beyond reputeJared Russell has a reputation beyond reputeJared Russell has a reputation beyond reputeJared Russell has a reputation beyond reputeJared Russell has a reputation beyond reputeJared Russell has a reputation beyond reputeJared Russell has a reputation beyond repute
Re: What we learned from week 1

Quote:
Originally Posted by Daniel Brim View Post
Do you have a specific measurement for the height of the first bar? Or at least a ballpark value?
We measured ~28 1/4" from the floor to the bottom of the first bar (+/- 1/4" depending on which rung and which pyramid).
Reply With Quote
  #8   Spotlight this post!  
Unread 04-03-2013, 10:02
EricLeifermann's Avatar
EricLeifermann EricLeifermann is offline
Taking some personal time
no team
Team Role: Engineer
 
Join Date: Jan 2007
Rookie Year: 2001
Location: Wisconsin
Posts: 1,020
EricLeifermann has a reputation beyond reputeEricLeifermann has a reputation beyond reputeEricLeifermann has a reputation beyond reputeEricLeifermann has a reputation beyond reputeEricLeifermann has a reputation beyond reputeEricLeifermann has a reputation beyond reputeEricLeifermann has a reputation beyond reputeEricLeifermann has a reputation beyond reputeEricLeifermann has a reputation beyond reputeEricLeifermann has a reputation beyond reputeEricLeifermann has a reputation beyond repute
Re: What we learned from week 1

Quote:
Originally Posted by Jared341 View Post
We measured ~28 1/4" from the floor to the bottom of the first bar (+/- 1/4" depending on which rung and which pyramid).
How are they that far out of spec? That is completely unacceptable.
__________________
2002-2005 Appleton East High School: Team 93
2005-2011 Michigan Technological University: Team 857
2012-2016 Wave Robotics Team 2826



Reply With Quote
  #9   Spotlight this post!  
Unread 04-03-2013, 10:07
TD78 TD78 is online now
Registered User
AKA: Tom Dolan
FRC #0078 (AIR Strike)
Team Role: Leadership
 
Join Date: Sep 2002
Rookie Year: 2002
Location: Middletown, RI
Posts: 361
TD78 has a brilliant futureTD78 has a brilliant futureTD78 has a brilliant futureTD78 has a brilliant futureTD78 has a brilliant futureTD78 has a brilliant futureTD78 has a brilliant futureTD78 has a brilliant futureTD78 has a brilliant futureTD78 has a brilliant futureTD78 has a brilliant future
Re: What we learned from week 1

Quote:
Originally Posted by Jared341 View Post
We measured ~28 1/4" from the floor to the bottom of the first bar (+/- 1/4" depending on which rung and which pyramid).
We were going with 29-1/4" that we measured at NH.

We believe it was from the 1/2" plywood base + carpet lining + carpet underneath the pyramid. So the 30" from the actual floor the bots drive around on is 30"...but then you need to take into account the 3/4" of base underneath the pyramid.

The practice field didn't have the plywood base, so it threw my team all off until late Friday afternoon. Our hanger still didn't work as well as we would have hoped...but we didn't expect that curveball.
__________________


FRC78: 2010-Present
FRC121: 2002-2009

Last edited by TD78 : 04-03-2013 at 10:10.
Reply With Quote
  #10   Spotlight this post!  
Unread 04-03-2013, 10:28
Chris is me's Avatar
Chris is me Chris is me is offline
no bag, vex only, final destination
AKA: Pinecone
FRC #0228 (GUS Robotics); FRC #2170 (Titanium Tomahawks)
Team Role: Mentor
 
Join Date: Dec 2008
Rookie Year: 2006
Location: Glastonbury, CT
Posts: 7,601
Chris is me has a reputation beyond reputeChris is me has a reputation beyond reputeChris is me has a reputation beyond reputeChris is me has a reputation beyond reputeChris is me has a reputation beyond reputeChris is me has a reputation beyond reputeChris is me has a reputation beyond reputeChris is me has a reputation beyond reputeChris is me has a reputation beyond reputeChris is me has a reputation beyond reputeChris is me has a reputation beyond repute
Send a message via AIM to Chris is me
Re: What we learned from week 1

Quote:
Originally Posted by TD78 View Post
The practice field didn't have the plywood base, so it threw my team all off until late Friday afternoon. Our hanger still didn't work as well as we would have hoped...but we didn't expect that curveball.
For us, the measured difference between an arbitrary rung on the practice field and competition field was more than 1 inch.

Measuring the field and adjust-ability in your hanging mechanism are both mandatory this year, I'm afraid.
__________________
Mentor / Drive Coach: 228 (2016-?)
...2016 Waterbury SFs (with 3314, 3719), RIDE #2 Seed / Winners (with 1058, 6153), Carver QFs (with 503, 359, 4607)
Mentor / Consultant Person: 2170 (2017-?)
---
College Mentor: 2791 (2010-2015)
...2015 TVR Motorola Quality, FLR GM Industrial Design
...2014 FLR Motorola Quality / SFs (with 341, 4930)
...2013 BAE Motorola Quality, WPI Regional #1 Seed / Delphi Excellence in Engineering / Finalists (with 20, 3182)
...2012 BAE Imagery / Finalists (with 1519, 885), CT Xerox Creativity / SFs (with 2168, 118)
Student: 1714 (2009) - 2009 Minnesota 10,000 Lakes Regional Winners (with 2826, 2470)
2791 Build Season Photo Gallery - Look here for mechanism photos My Robotics Blog (Updated April 11 2014)
Reply With Quote
  #11   Spotlight this post!  
Unread 04-03-2013, 10:42
EricLeifermann's Avatar
EricLeifermann EricLeifermann is offline
Taking some personal time
no team
Team Role: Engineer
 
Join Date: Jan 2007
Rookie Year: 2001
Location: Wisconsin
Posts: 1,020
EricLeifermann has a reputation beyond reputeEricLeifermann has a reputation beyond reputeEricLeifermann has a reputation beyond reputeEricLeifermann has a reputation beyond reputeEricLeifermann has a reputation beyond reputeEricLeifermann has a reputation beyond reputeEricLeifermann has a reputation beyond reputeEricLeifermann has a reputation beyond reputeEricLeifermann has a reputation beyond reputeEricLeifermann has a reputation beyond reputeEricLeifermann has a reputation beyond repute
Re: What we learned from week 1

Quote:
Originally Posted by TD78 View Post
We were going with 29-1/4" that we measured at NH.

We believe it was from the 1/2" plywood base + carpet lining + carpet underneath the pyramid. So the 30" from the actual floor the bots drive around on is 30"...but then you need to take into account the 3/4" of base underneath the pyramid.

The practice field didn't have the plywood base, so it threw my team all off until late Friday afternoon. Our hanger still didn't work as well as we would have hoped...but we didn't expect that curveball.
The problem is that the prints, the manual, and the official field tour videos, show the 30 inches(center) from the floor to be from where the pyramid connects to the floor which is technically on top of the .5in steel, or in the case of districts plywood. So if we follow that correctly when measured from the floor and not the top of the base plate the 1st rung should be 30.5 in(center) or 29.75(bottom) from the floor. So the 28.25" that Jared measured is out of spec by 1.25 inches if measured from the floor or .75 inches if measured to the base plate. I would hope that FIRST wouldn't have put the tolerance of the pyramids in the "the field can be out of spec by 4 inches" specification as the pyramid is such an integral part of the game that it would be a slap in the face to all the teams who designed climbers or robots they thought were short enough to go under the bar but might not be able to at every competition they go to.
__________________
2002-2005 Appleton East High School: Team 93
2005-2011 Michigan Technological University: Team 857
2012-2016 Wave Robotics Team 2826



Reply With Quote
  #12   Spotlight this post!  
Unread 04-03-2013, 11:09
TD78 TD78 is online now
Registered User
AKA: Tom Dolan
FRC #0078 (AIR Strike)
Team Role: Leadership
 
Join Date: Sep 2002
Rookie Year: 2002
Location: Middletown, RI
Posts: 361
TD78 has a brilliant futureTD78 has a brilliant futureTD78 has a brilliant futureTD78 has a brilliant futureTD78 has a brilliant futureTD78 has a brilliant futureTD78 has a brilliant futureTD78 has a brilliant futureTD78 has a brilliant futureTD78 has a brilliant futureTD78 has a brilliant future
Re: What we learned from week 1

Quote:
Originally Posted by EricLeifermann View Post
The problem is that the prints, the manual, and the official field tour videos, show the 30 inches(center) from the floor to be from where the pyramid connects to the floor which is technically on top of the .5in steel, or in the case of districts plywood. So if we follow that correctly when measured from the floor and not the top of the base plate the 1st rung should be 30.5 in(center) or 29.75(bottom) from the floor. So the 28.25" that Jared measured is out of spec by 1.25 inches if measured from the floor or .75 inches if measured to the base plate. I would hope that FIRST wouldn't have put the tolerance of the pyramids in the "the field can be out of spec by 4 inches" specification as the pyramid is such an integral part of the game that it would be a slap in the face to all the teams who designed climbers or robots they thought were short enough to go under the bar but might not be able to at every competition they go to.
Trust me, I'm just as confused and frustrated!!! I originally thought the 30" was to the top of the first bar as well (in the game manual). Then I looked at a later rev of the game manual and the dimension looked to be in the center of the bar. In the end, my team attempted to make our static hanger adjustable. I say attempt because I still had to spend 45 minutes at the regional machine shop getting the slots elongated (thank you to the machinist who helped me out!!). So with the full adjusted hanger that *should* have worked on the actually field (we had moved the hanger down based on the drive team's observations), the nose of the hanger was hitting the center of the bar on the practice field (which was measured at ~30" to the center of the first bar from the carpet)... A lot of head scratching until the field bar was measured and we started using 29-1/4". Heard a lot of other teams at BAE were having problems with the bar too.
__________________


FRC78: 2010-Present
FRC121: 2002-2009
Reply With Quote
  #13   Spotlight this post!  
Unread 04-03-2013, 11:12
Woolly's Avatar
Woolly Woolly is offline
Programming Mentor
AKA: Dillon Woollums
FRC #1806 (S.W.A.T.)
Team Role: Mentor
 
Join Date: Feb 2012
Rookie Year: 2012
Location: Springfield, MO
Posts: 512
Woolly has a reputation beyond reputeWoolly has a reputation beyond reputeWoolly has a reputation beyond reputeWoolly has a reputation beyond reputeWoolly has a reputation beyond reputeWoolly has a reputation beyond reputeWoolly has a reputation beyond reputeWoolly has a reputation beyond reputeWoolly has a reputation beyond reputeWoolly has a reputation beyond reputeWoolly has a reputation beyond repute
Re: What we learned from week 1

Also, on the subject of the pyramid, robots are standing up to falls better than anticipated. There was damage from falls, but I didn't see anything that really messed up a robot unless it flipped off the pyramid and landed directly on a mechanism.
__________________


Team 1806 Student: 2012-2013 | Mentor: 2013-Present
Reply With Quote
  #14   Spotlight this post!  
Unread 04-03-2013, 10:09
DjScribbles DjScribbles is offline
Programming Mentor
AKA: Joe S
FRC #2474 (Team Excel)
Team Role: Mentor
 
Join Date: Oct 2011
Rookie Year: 2012
Location: Niles MI
Posts: 284
DjScribbles is a splendid one to beholdDjScribbles is a splendid one to beholdDjScribbles is a splendid one to beholdDjScribbles is a splendid one to beholdDjScribbles is a splendid one to beholdDjScribbles is a splendid one to beholdDjScribbles is a splendid one to beholdDjScribbles is a splendid one to behold
Re: What we learned from week 1

While the strategic value of shooting 5pt shots from the floor (with 50% accuracy) is questionable, it sure does get the crowd going.

Floor pick up is much more valuable than I personally expected.

Autonomous points are very big this year; if you can reliably gather extra game pieces, your robot will really stand out.

This game piece is pretty difficult to move around consistently. It's easy to shoot, but loading and collecting caused a few jams that crippled us for a match.

Keep the practice field away from the screen with scoring displays. In Traverse City, the sheet behind the practice goals blocked the view of the scores for approximately 1/3 of the audience.

Last edited by DjScribbles : 04-03-2013 at 10:14.
Reply With Quote
  #15   Spotlight this post!  
Unread 04-03-2013, 10:18
Blackphantom91's Avatar
Blackphantom91 Blackphantom91 is offline
Mentor + 4 = Stuck For Life
AKA: Malcolm Stirckland
FRC #1986 (Team Titanium)
Team Role: Mentor
 
Join Date: Nov 2009
Rookie Year: 2008
Location: Kansas City
Posts: 232
Blackphantom91 has a spectacular aura aboutBlackphantom91 has a spectacular aura aboutBlackphantom91 has a spectacular aura about
Re: What we learned from week 1

1). This Game is a lot harder than expected.
2.) Defense totally rewrites how the game is played. It makes it feel like it is played in turns.
3.) Full-court shooters are very successful in qualifications if not stopped, but may falter in Eliminations rounds.
4.) Auto is the most important part of this game. It is really hard to make a comeback if all hit and one side doesn't. (more so than other seasons)
5.)Defense is going to evolve even further as weeks go by teams shutting down main robots and teams being forced to rely on other partners.

Overall week one impressions autonomous,autonomous,autonomous! This game runs on it IMO. I am hoping to see more 30pt climbs and how it can effect the game later on.
__________________
[img*]http://i.imgur.com/Os2oTET.jpg[/img*]

Last edited by Blackphantom91 : 04-03-2013 at 10:25.
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


All times are GMT -5. The time now is 19:05.

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