Re: Beware of R16 your robot design may be too big.
 

You do know that the cylinder reference is a reference only, right? Yeah, it works, but the rule is 80" point to point. Easy test: Two posts, set 80" apart. Put robot between in all possible orientations that come close (e.g. arm out). If any can't fit, they need to be hard-stopped or programmed out.

Re: Beware of R16 your robot design may be too big.
 

Please take a look at the FIRST Q&A, especially this thread: http://forums.usfirst.org/showthread.php?t=8159

There is no "80 inch cylinder" rule. That was just an EXAMPLE of one shape that will pass.

The rule can be rephrased as this: if you were to project all points of the robot onto the ground (i.e. a horizontal plane), would there exist any two points which are more than 80 inches apart? If the answer is yes, then the robot is too big.

Re: Beware of R16 your robot design may be too big.
 

I AM SO WRONG! The diagram a few post up really messed with my brain. Either the 80" coke can or a 160" coke can with the center on any part of the robot do the same thing. The kids have a design that fits within the 80 inches, it would just be a little bit better if they could get another couple inches. There are plenty of suggested ways to maximize the 80", I am not looking for any more in response to this post. Thank You.

EDIT: Responce to ay2B, previous post, I was posting this while you were also posting, I have been there and done that, many, many times, my head officially hurts.

Re: Beware of R16 your robot design may be too big.
 

This is the most clear way I have heard it stated.... Any two points more than 80" apart? if so, fail (restating that was more for my own understanding than anything).

Re: Beware of R16 your robot design may be too big.
 

Adam, the rule says "While in the PLAYING CONFIGURATION, the ROBOT may expand up to a maximum horizontal dimension of 80 inches"

I think that the best way to say that is just like you said it: There cannot be any two points on the robot that are more than 80" apart (in a horizontal plane)

Here is a better drawing of a robot that is illegal, even though the arm extends less than 80" from the rear bumper measured straight on (and I apologize to you ALIBI for messing with your brain!)

Re: Beware of R16 your robot design may be too big.
 

I like this drawing a whole lot better. Aside from design changes, there just does not appear to to be any way to make 80 inches any longer than 80 inches. Did I just say that? What if we measured with nautical miles, oops, that would make it worse.

EDIT: Thank you Squirrel, but it was probably more my doing than yours..

Re: Beware of R16 your robot design may be too big.
 

See Q&A: http://forums.usfirst.org/showthread.php?t=8181

A robot that is physically capable of extending past 80" but does not do so during a match will not be penalized.

Re: Beware of R16 your robot design may be too big.
 

yes but you would want to cover the back of your robot especially well since you will be getting "gently bumped" quite a bit there.

-vivek

Re: Beware of R16 your robot design may be too big.
 

What do you mean by "If you are planning to reach over the overpass while hurdling you better either start while underneath or not reach more than 3" past it. That includes your gripper.":confused:

Re: Beware of R16 your robot design may be too big.
 

ALIBI stated "does not appear to to be any way to make 80 inches any longer than 80 inches."

Now if you just accelerate your robot to near the speed of light whilst measuring it in the earth's inertial frame...

Re: Beware of R16 your robot design may be too big.
 

But apparently any robot that is just sitting still is now formally moving at the speed of light, so that should be pretty easy.




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Re: Beware of R16 your robot design may be too big.
 

Oink...Oink...BOOM! The team name is Exploding Bacon. One of last year's Einstein semifinalists.

Re: Beware of R16 your robot design may be too big.
 

I Wonder How many teams have really missed this Rule and will FIRST inforce it?

Re: Beware of R16 your robot design may be too big.
 

I'm sure it will be enforced - there's a notation on the inspection sheet to indicate whether or not the robot can physically extend greater than 80".

Re: Beware of R16 your robot design may be too big.
 

I imagine it's a non-zero number.
Absolutely.