Go to Post I think of the FP's as the party motor, they are kinda like mini smoke generators. - coreyjon [more]
Home
Go Back   Chief Delphi > ChiefDelphi.com Website > Extra Discussion
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 11-01-2009, 13:49
NickE's Avatar
NickE NickE is offline
_
FRC #0254 (The Cheesy Poofs)
Team Role: Engineer
 
Join Date: Mar 2008
Rookie Year: 2008
Location: San Jose, CA
Posts: 620
NickE has a reputation beyond reputeNickE has a reputation beyond reputeNickE has a reputation beyond reputeNickE has a reputation beyond reputeNickE has a reputation beyond reputeNickE has a reputation beyond reputeNickE has a reputation beyond reputeNickE has a reputation beyond reputeNickE has a reputation beyond reputeNickE has a reputation beyond reputeNickE has a reputation beyond repute
Re: pic: Carmen week1 team 842

Quote:
Originally Posted by falconmaster View Post
We would have our string cross the opening of our bot. It does not say it has to make contact with the bumper zone everywhere. That is an assumption. Our polygon would be a rectangle, never the less we will cover the angles in from the corner with 6 inches of bumper. We think we are ok......I hope
Would the bumpers be straight (parallel with back of bot) or angled (parallel with angled front sides of bot)?
Reply With Quote
  #2   Spotlight this post!  
Unread 11-01-2009, 16:19
falconmaster's Avatar
falconmaster falconmaster is offline
Registered User
AKA: Ledge
FRC #0842 (Falcon Robotics)
Team Role: Teacher
 
Join Date: Jan 2004
Rookie Year: 2001
Location: Phoenix, Arizona
Posts: 1,406
falconmaster has a reputation beyond reputefalconmaster has a reputation beyond reputefalconmaster has a reputation beyond reputefalconmaster has a reputation beyond reputefalconmaster has a reputation beyond reputefalconmaster has a reputation beyond reputefalconmaster has a reputation beyond reputefalconmaster has a reputation beyond reputefalconmaster has a reputation beyond reputefalconmaster has a reputation beyond reputefalconmaster has a reputation beyond repute
Send a message via MSN to falconmaster
Re: pic: Carmen week1 team 842

Quote:
Originally Posted by NickE View Post
Would the bumpers be straight (parallel with back of bot) or angled (parallel with angled front sides of bot)?
angled
__________________
Faridodin "Fredi" Lajvardi KD7WKD
Reply With Quote
  #3   Spotlight this post!  
Unread 11-01-2009, 22:50
Mike8519's Avatar
Mike8519 Mike8519 is offline
Registered User
FRC #0303 (TEST Team)
Team Role: Engineer
 
Join Date: Nov 2002
Rookie Year: 2001
Location: Raritan, New Jersey
Posts: 220
Mike8519 is just really niceMike8519 is just really niceMike8519 is just really niceMike8519 is just really niceMike8519 is just really nice
Re: pic: Carmen week1 team 842

Angled "bumpers" would not pass inspection because technically they are not bumpers at all since they do not lie on the bumper perimeter according to the current set of definitions and both sides of the corner must be protected.
Reply With Quote
  #4   Spotlight this post!  
Unread 11-01-2009, 22:57
MrForbes's Avatar
MrForbes MrForbes is offline
Registered User
AKA: Jim
FRC #1726 (N.E.R.D.S.)
Team Role: Mentor
 
Join Date: Feb 2006
Rookie Year: 2006
Location: Sierra Vista AZ
Posts: 6,013
MrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond repute
Re: pic: Carmen week1 team 842

Ahhh...here's that statement that seemed to me to be missing from the rules.

"2. As indicated in Rule <R08-I>, all exterior corners of the BUMPER PERIMETER must be protected by BUMPERS. Both "sides" of the corner must be protected."

from http://forums.usfirst.org/showthread.php?t=11159
Reply With Quote
  #5   Spotlight this post!  
Unread 11-01-2009, 23:56
falconmaster's Avatar
falconmaster falconmaster is offline
Registered User
AKA: Ledge
FRC #0842 (Falcon Robotics)
Team Role: Teacher
 
Join Date: Jan 2004
Rookie Year: 2001
Location: Phoenix, Arizona
Posts: 1,406
falconmaster has a reputation beyond reputefalconmaster has a reputation beyond reputefalconmaster has a reputation beyond reputefalconmaster has a reputation beyond reputefalconmaster has a reputation beyond reputefalconmaster has a reputation beyond reputefalconmaster has a reputation beyond reputefalconmaster has a reputation beyond reputefalconmaster has a reputation beyond reputefalconmaster has a reputation beyond reputefalconmaster has a reputation beyond repute
Send a message via MSN to falconmaster
Re: pic: Carmen week1 team 842

Quote:
Originally Posted by squirrel View Post
Ahhh...here's that statement that seemed to me to be missing from the rules.

"2. As indicated in Rule <R08-I>, all exterior corners of the BUMPER PERIMETER must be protected by BUMPERS. Both "sides" of the corner must be protected."

from http://forums.usfirst.org/showthread.php?t=11159
Ok Well according to Jim we are possible ok since we will have the bumpers over the corners and the first part to touch a wall will be the bumpers. Let keep or fingers crossed!
__________________
Faridodin "Fredi" Lajvardi KD7WKD
Reply With Quote
  #6   Spotlight this post!  
Unread 12-01-2009, 00:21
MrForbes's Avatar
MrForbes MrForbes is offline
Registered User
AKA: Jim
FRC #1726 (N.E.R.D.S.)
Team Role: Mentor
 
Join Date: Feb 2006
Rookie Year: 2006
Location: Sierra Vista AZ
Posts: 6,013
MrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond reputeMrForbes has a reputation beyond repute
Re: pic: Carmen week1 team 842

The problem is the bumpers need to be on the bumper perimeter, which is the edge around the robot, and recessed parts of the frame are not the perimeter. So it looks to me like it's not legal. You'd have to put back the straight pieces across the front, but make them each 6" long, and cover them with 6" long bumpers. This will give a pretty small opening in the middle.

What a bummer, how vague the rules are this year on bumpers...they could have just come out and said what they wanted in the first place.
Reply With Quote
  #7   Spotlight this post!  
Unread 12-01-2009, 00:43
GUI GUI is online now
Registered User
AKA: Gary
FRC #4183 (Bit Buckets)
Team Role: Mentor
 
Join Date: Nov 2006
Rookie Year: 2006
Location: Tucson, AZ
Posts: 229
GUI is a splendid one to beholdGUI is a splendid one to beholdGUI is a splendid one to beholdGUI is a splendid one to beholdGUI is a splendid one to beholdGUI is a splendid one to beholdGUI is a splendid one to behold
Send a message via Yahoo to GUI
Re: pic: Carmen week1 team 842

..

Last edited by GUI : 12-01-2009 at 00:51. Reason: misread manual
Reply With Quote
  #8   Spotlight this post!  
Unread 12-01-2009, 02:32
redbarron's Avatar
redbarron redbarron is offline
Mike Barron
AKA: Mike
FRC #1270 (Red Dragons)
Team Role: Coach
 
Join Date: Jan 2004
Rookie Year: 2002
Location: Cleveland, Ohio
Posts: 187
redbarron is a splendid one to beholdredbarron is a splendid one to beholdredbarron is a splendid one to beholdredbarron is a splendid one to beholdredbarron is a splendid one to beholdredbarron is a splendid one to beholdredbarron is a splendid one to behold
Re: pic: Carmen week1 team 842

I still do not understand why this is not legal.......... If they were to put the bumpers at an angle across those pieces as long as the bumper pieces were at least six inches long, and the corner was not exposed, why isn't this legal?
__________________
The Red Dragons
2005 Buckeye Regional Woodie Flowers Regional Award
2005 Florida Regional Finalist Along with 1251 and 845
2006 Palmetto Regional Engineering Inspiration Award
2007 Florida Regional Judges Award and Regional Winners Along With 1251 and 86
2007 Curie Division Winner with 330 and 910
2008 Florida Regional Team Spirit Award Winners

Last edited by redbarron : 12-01-2009 at 02:38.
Reply With Quote
  #9   Spotlight this post!  
Unread 12-01-2009, 06:40
Mike8519's Avatar
Mike8519 Mike8519 is offline
Registered User
FRC #0303 (TEST Team)
Team Role: Engineer
 
Join Date: Nov 2002
Rookie Year: 2001
Location: Raritan, New Jersey
Posts: 220
Mike8519 is just really niceMike8519 is just really niceMike8519 is just really niceMike8519 is just really niceMike8519 is just really nice
Re: pic: Carmen week1 team 842

Quote:
Originally Posted by redbarron View Post
I still do not understand why this is not legal.......... If they were to put the bumpers at an angle across those pieces as long as the bumper pieces were at least six inches long, and the corner was not exposed, why isn't this legal?
Because angled bumpers are not bumpers at all. If they are not on the bumper perimeter they are superfluous padded chassis sections. If you take a piece of string around the outside of the robot (definition of bumper perimeter) the bumpers must be attached to the chassis where the string is.

Quote:
BUMPER PERIMETER – the polygon defined by the outer-most set of exterior vertices on the ROBOT
(without the BUMPERS or Trailer Hitch attached) that are within the BUMPER ZONE. To determine
the BUMPER PERIMETER, wrap a piece of string around the ROBOT at the level of the BUMPER
ZONE - the string describes this polygon. The BUMPER PERIMETER may extend up to, but cannot
exceed, the maximum ROBOT volume constraints defined in Rule <R11>.

L. The BUMPERS must be fixed to the BUMPER PERIMETER.
Reply With Quote
  #10   Spotlight this post!  
Unread 12-01-2009, 07:11
hillale's Avatar
hillale hillale is offline
Formerly a Winnovator
AKA: Alec Hill
FRC #3617 (Cold Logic)
Team Role: Mentor
 
Join Date: Jan 2006
Rookie Year: 2005
Location: Marquette, MI
Posts: 184
hillale is a splendid one to beholdhillale is a splendid one to beholdhillale is a splendid one to beholdhillale is a splendid one to beholdhillale is a splendid one to beholdhillale is a splendid one to beholdhillale is a splendid one to behold
Send a message via AIM to hillale
Re: pic: Carmen week1 team 842

Quote:
Originally Posted by Mike8519 View Post
Because angled bumpers are not bumpers at all.
This is not necessarily true
__________________
Reply With Quote
  #11   Spotlight this post!  
Unread 12-01-2009, 07:20
Mike8519's Avatar
Mike8519 Mike8519 is offline
Registered User
FRC #0303 (TEST Team)
Team Role: Engineer
 
Join Date: Nov 2002
Rookie Year: 2001
Location: Raritan, New Jersey
Posts: 220
Mike8519 is just really niceMike8519 is just really niceMike8519 is just really niceMike8519 is just really niceMike8519 is just really nice
Re: pic: Carmen week1 team 842

Quote:
Originally Posted by hillale View Post
This is not necessarily true
What I should say is that bumpers on a concave angled portion of the robot are not bumpers. Robots with angled front edges.

Bumpers like http://www.chiefdelphi.com/media/photos/30834 are legal types since the bumper perimeter is along those edges
Reply With Quote
  #12   Spotlight this post!  
Unread 12-01-2009, 07:22
GaryVoshol's Avatar
GaryVoshol GaryVoshol is offline
Cogito ergo arbitro
no team
 
Join Date: Aug 2005
Rookie Year: 2000
Location: Royal Oak, MI
Posts: 5,748
GaryVoshol has a reputation beyond reputeGaryVoshol has a reputation beyond reputeGaryVoshol has a reputation beyond reputeGaryVoshol has a reputation beyond reputeGaryVoshol has a reputation beyond reputeGaryVoshol has a reputation beyond reputeGaryVoshol has a reputation beyond reputeGaryVoshol has a reputation beyond reputeGaryVoshol has a reputation beyond reputeGaryVoshol has a reputation beyond reputeGaryVoshol has a reputation beyond repute
Re: pic: Carmen week1 team 842

Quote:
Originally Posted by Mike8519 View Post
What I should say is that bumpers on a concave angled portion of the robot are not bumpers.
They are bumpers, but they are not BUMPERS. They don't qualify under the <R08> rules, and would not be exempt from weight/size in <R11>.
__________________
(since 2004)
Reply With Quote
  #13   Spotlight this post!  
Unread 12-01-2009, 07:29
jgannon's Avatar
jgannon jgannon is offline
I ᐸ3 Robots
AKA: Joey Gannon
no team
 
Join Date: Feb 2004
Rookie Year: 2004
Location: Pittsburgh, PA
Posts: 1,467
jgannon has a reputation beyond reputejgannon has a reputation beyond reputejgannon has a reputation beyond reputejgannon has a reputation beyond reputejgannon has a reputation beyond reputejgannon has a reputation beyond reputejgannon has a reputation beyond reputejgannon has a reputation beyond reputejgannon has a reputation beyond reputejgannon has a reputation beyond reputejgannon has a reputation beyond repute
Re: pic: Carmen week1 team 842

Quote:
Originally Posted by hillale View Post
Quote:
Originally Posted by Mike8519 View Post
Because angled bumpers are not bumpers at all.
This is not necessarily true
It's important to keep in mind the difference between bumpers and BUMPERS. Some bumpers are not BUMPERS. Bumpers that are angled such that if extended infinitely would pass through the robot chassis are not BUMPERS, because they are not affixed to the BUMPER PERIMETER. As such, nothing attached to the angled pieces on Carmen's front can ever be considered a BUMPER, so even though the corners of the frame could be protected on both sides by pool noodles and fabric, they won't be protected by BUMPERS, and thus run afoul of <R08-I>.
__________________
Team 1743 - The Short Circuits
2010 Pittsburgh Excellence in Design & Team Spirit Awards
2009 Pittsburgh Regional Champions (thanks to 222 and 1218)
2007 Pittsburgh Website Award
2006 Pittsburgh Regional Champions (thanks to 395 and 1038)
2006 Pittsburgh Rookie Inspiration & Highest Rookie Seed

Team 1388 - Eagle Robotics
2005 Sacramento Engineering Inspiration
2004 Curie Division Champions (thanks to 1038 and 175)
2004 Sacramento Rookie All-Star

_
Reply With Quote
  #14   Spotlight this post!  
Unread 12-01-2009, 08:10
rfolea's Avatar
rfolea rfolea is offline
Registered User
AKA: Rick Folea
no team (Forsyth Alliance)
Team Role: Mentor
 
Join Date: May 2005
Rookie Year: 2005
Location: US
Posts: 212
rfolea has a brilliant futurerfolea has a brilliant futurerfolea has a brilliant futurerfolea has a brilliant futurerfolea has a brilliant futurerfolea has a brilliant futurerfolea has a brilliant futurerfolea has a brilliant futurerfolea has a brilliant futurerfolea has a brilliant futurerfolea has a brilliant future
Re: pic: Carmen week1 team 842

I wonder if Inspectors would let this design through due to the potential to damage the field.

With the cantilevered front end, if the robot is struck and the front end dips, the metals will be in direct contact with the flooring, potentially gouging it or catching a seam ...

Maybe consider placing plastic carpet skids on the under side ...
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
pic: Robot-Week1 Brad Voracek Extra Discussion 13 16-01-2009 11:44
pic: Team 842 in Hispanic Magazine falconmaster Extra Discussion 5 07-10-2008 19:28
pic: 1889 Team HAZE's frame (week1) Tytus Gerrish Extra Discussion 8 19-01-2007 02:23
pic: installed battery team 842 falconmaster Robot Showcase 11 04-02-2006 09:36
pic: Turret team 842 falconmaster Robot Showcase 3 01-02-2006 17:28


All times are GMT -5. The time now is 02:27.

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