Go to Post Progress should never made at the expense of the past. - Koko Ed [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 30-01-2010, 03:46
alectronic alectronic is offline
Registered User
no team (Volunteer)
Team Role: Alumni
 
Join Date: Dec 2008
Rookie Year: 2007
Location: Nevada
Posts: 341
alectronic has a brilliant futurealectronic has a brilliant futurealectronic has a brilliant futurealectronic has a brilliant futurealectronic has a brilliant futurealectronic has a brilliant futurealectronic has a brilliant futurealectronic has a brilliant futurealectronic has a brilliant futurealectronic has a brilliant futurealectronic has a brilliant future
Re: Team Update #6

and in case you still don't believe it....

http://usfirst.org/uploadedFiles/Rob...Update%206.pdf
__________________
Reply With Quote
  #2   Spotlight this post!  
Unread 30-01-2010, 08:38
martin417's Avatar
martin417 martin417 is offline
Opinionated old goat
AKA: Martin Wilson
no team
Team Role: Mentor
 
Join Date: Feb 2008
Rookie Year: 2008
Location: Buford, GA
Posts: 719
martin417 has a reputation beyond reputemartin417 has a reputation beyond reputemartin417 has a reputation beyond reputemartin417 has a reputation beyond reputemartin417 has a reputation beyond reputemartin417 has a reputation beyond reputemartin417 has a reputation beyond reputemartin417 has a reputation beyond reputemartin417 has a reputation beyond reputemartin417 has a reputation beyond reputemartin417 has a reputation beyond repute
Re: Team Update #6

There is a whole thread already discussing this question. And while I agree that the intent of the update was to allow fasteners to protrude, the words don't say that.

I believe that the GDC wants to maintain a certain "mystique" about themselves and the answers they give.
Quote:
This forum is intended for rule clarification. To maintain the mystique of the process, we typically refrain from answering "why" questions about game design decisions.
So they tend to be oblique in their answers. If they intend to allow fasteners to protrude, why say something like:

Quote:
<R16> During normal operation no part of the ROBOT shall extend outside the vertical projection of the FRAME PERIMETER, with the following exceptions: projections permitted by Rule <G30>, and minor protrusions such as bolt heads, fastener ends, rivets etc.
At any rate, if you exclude the fasteners from the determination of the frame perimeter, then said perimeter is defined by the frame members. Anything outside the frame members is, by definition, outside the frame perimeter. The frame perimeter is defined by the outermost vertices on the robot, exclusive of fasteners.

So, any way you want to read it, regardless of intent, it says that ANYTHING outside the frame perimeter is illegal, except as allowed by <G30>. But, <R07> D states that clearance pockets are allowed in the bumper backing for bolt heads etc. so, even though the rules state that it is illegal for fasteners to protrude, it is legal to include clearance pockets for the illegal bolt heads.

For the sake of clarity, I will ask the question more specifically on the forums. I hope that they will be more clear in their answer. This late in the season, the time for mystique has passed. Teams need to know, clearly, what the rules are so they can finish their robot.
__________________
Former Mentor Team 1771
Former mentor Team 4509
Reply With Quote
  #3   Spotlight this post!  
Unread 30-01-2010, 08:55
Chuck Glick Chuck Glick is offline
Gone Fishin'
no team
Team Role: Engineer
 
Join Date: Dec 2005
Rookie Year: 2005
Location: Dallas, TX
Posts: 499
Chuck Glick has a reputation beyond reputeChuck Glick has a reputation beyond reputeChuck Glick has a reputation beyond reputeChuck Glick has a reputation beyond reputeChuck Glick has a reputation beyond reputeChuck Glick has a reputation beyond reputeChuck Glick has a reputation beyond reputeChuck Glick has a reputation beyond reputeChuck Glick has a reputation beyond reputeChuck Glick has a reputation beyond reputeChuck Glick has a reputation beyond repute
Send a message via AIM to Chuck Glick
Re: Team Update #6

Everyone also is going to need to apply the "common sense rule" when reading this update. This update is not saying "if your frame is 28"x38", but you have bolts that extend beyond this then you are A-ok."

Lawyering the rules is just making people overthink the intent of this update.

This update is saying that the bolt heads or rivets or whatever else might be outside the "frame perimeter" still need to be within the 28"x38" max dimensions. Bumpers are still to be attached to the frame perimiter, but are allowed to have small holes or pockets in the back of them to allow flush mounting to the frame perimeter.

So if you are reading this new update as "hey, we can have bolts and stuff outside the 28"x38" package!" , I'm sorry, but you are mistaken. Make sure you have everything within the 28"x38" to avoid headaches when it comes to inspection time and you learn that your bot is really 28.5"x38.5" just because your bolts protrude a little too much. A half inch may not sound like much, but what if the protrusions in question are your drive axles? Good luck driving now.


Definintions to help understand this update (both are from the ORIGINAL manual):


Quote:
FRAME PERIMETER:
The polygon defined by the outer-most set of exterior vertices on the ROBOT (without the BUMPERS attached) that are within the BUMPER ZONE. To determine the FRAME PERIMETER, wrap a piece of string around the ROBOT at the level of the BUMPER ZONE - the string describes this polygon.
Quote:
<R07-D>
Each BUMPER segment must be backed by a piece of ¾-inch thick by 5-inch tall piece of plywood. Each piece of BUMPER backing must be a minimum of 6 inches long. Small clearance pockets and/or access holes in the BUMPER backing are permitted, as long as they do not significantly affect the structural integrity of the BUMPER.

Last edited by Chuck Glick : 30-01-2010 at 09:04.
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
Team Update #7 Thexder General Forum 15 02-02-2008 09:01
Team Update 17 ntroup General Forum 33 14-03-2007 16:58
Team Update 16 (3/16) Joe Ross General Forum 2 17-03-2005 16:34
Team Update #3 archiver 2001 0 23-06-2002 22:43
Team Update #2 is up!! archiver 2000 0 23-06-2002 22:34


All times are GMT -5. The time now is 18:57.

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