Thread: Team Update #2
View Single Post
  #19   Spotlight this post!  
Unread 09-01-2009, 18:13
Richard Wallace's Avatar
Richard Wallace Richard Wallace is offline
I live for the details.
FRC #3620 (Average Joes)
Team Role: Engineer
 
Join Date: Jan 2003
Rookie Year: 1996
Location: Southwestern Michigan
Posts: 3,675
Richard Wallace has a reputation beyond reputeRichard Wallace has a reputation beyond reputeRichard Wallace has a reputation beyond reputeRichard Wallace has a reputation beyond reputeRichard Wallace has a reputation beyond reputeRichard Wallace has a reputation beyond reputeRichard Wallace has a reputation beyond reputeRichard Wallace has a reputation beyond reputeRichard Wallace has a reputation beyond reputeRichard Wallace has a reputation beyond reputeRichard Wallace has a reputation beyond repute
Re: Team Update #2

I'll take a crack at that one.

Suppose your robot is built to the maximum <R11> horizontal dimensions 28" x 38". Its BUMPER PERIMETER is therefore (2 x 28) + (2 x 38) = 132 inches, so per the 2/3 rule it must include at least 88 inches of bumpers; that is, it cannot have more than 44 inches of gaps in the bumper. You must leave a gap for the trailer hitch, which is 7" long, so you might think that leaves you with 37 inches of available unprotected BUMPER PERIMETER length, so that nearly one full 38 inch side of the robot could be left unprotected.

But you'd be wrong, because of two other requirements: each bumper segment must be at least six inches long per <R08-A> and the corners must be protected per <R08-I>. Applying these two rules, you find that the maximum unprotected length of BUMPER PERIMETER allowed is 38 - (2 x 6) = 26 inches.

A 26 inch unprotected gap will allow your robot to partially envelope one face or corner of an opponent's trailer, as illustrated by the example drawing at the top of page 3 in Team Update #2.
__________________
Richard Wallace

Mentor since 2011 for FRC 3620 Average Joes (St. Joseph, Michigan)
Mentor 2002-10 for FRC 931 Perpetual Chaos (St. Louis, Missouri)
since 2003

I believe in intuition and inspiration. Imagination is more important than knowledge. For knowledge is limited, whereas imagination embraces the entire world, stimulating progress, giving birth to evolution. It is, strictly speaking, a real factor in scientific research.
(Cosmic Religion : With Other Opinions and Aphorisms (1931) by Albert Einstein, p. 97)