Chief Delphi - Air gun length

Chief Delphi (http://www.chiefdelphi.com/forums/index.php)

- Technical Discussion (http://www.chiefdelphi.com/forums/forumdisplay.php?f=22)

- - Air gun length (http://www.chiefdelphi.com/forums/showthread.php?t=41984)

Can we make our air gun longer than 38" ?

Thanks!

Re: Air gun length

Quote:

Originally Posted by Max Brin

Can we make our air gun longer than 38" ?

Thanks!

Your shooting mechanism must stay within the starting footprint (28" by 38"). The manual is very good reading this time of year.

Re: Air gun length

Thanks, but I ment after the game starts, not at the first measurments.
Isnt there a 60" limit or something similar while playing?

Re: Air gun length

Quote:

Originally Posted by Max Brin

Can we make our air gun longer than 38" ?

Thanks!

Max,

What makes you think that it is legal to make an airgun at all?

Regards,

Mike

Re: Air gun length

Generally speaking about shooting mechanism, not air gun as a specific, sorry about misleading you.

Re: Air gun length

It must fit into the original space of 28x38x60. I suppose that if you put the gun at an angle in that virtual box, you could get a gun longer than 38", longer than 60" actually. But no, the gun cannot extend outside the original robot footprint, if thats what you mean.

Re: Air gun length

Quote:

Originally Posted by Andrew Blair

It must fit into the origninal space of 28x38x60.

And the reason is <S03>:

Quote:

Originally Posted by <S03>

Shooter Mechanism must remain inside the ROBOT - Any mechanism used to throw balls must be contained within the original 28” x 38” x 60”starting envelope of the ROBOT and must be shielded such that the mechanism cannot make contact with other ROBOTs. A ROBOT that violates this rule will be considered unsafe per <S01>.

Re: Air gun length

Guys, I've copied this paragraph:

The_Robot.pdf
5.3.2.1: Robot Size

"<R08> Once a match begins, robots may extend horizontally beyond the 28-inch x 38-inch starting size under
their own power, up to a limit of 60 inches in either horizontal cardinal dimension. The robot may not exceed
the 60-inch height restriction at any time during the match. In other words, after the start of the match the
robot may expand up to a maximum volume of 60 inches by 60 inches by 60 inches. The one exception to the
height restriction is provided in Rule <R13>. Any restraints (elastic bands, springs, etc.) that are used to
maintain starting size must remain attached to the robot for the duration of the match."

Re: Air gun length

Your cannon would be a part of your ball throwing mechanism. Therefore, your cannon can not exceed the 28" x 38" x 60" starting envelope. Please see this thread in the FIRST Q/A for further clarification.

Re: Air gun length

Quote:

Originally Posted by Max Brin

"<R08> Once a match begins, robots may extend horizontally beyond the 28-inch x 38-inch starting size under
their own power, up to a limit of 60 inches in either horizontal cardinal dimension. The robot may not exceed
the 60-inch height restriction at any time during the match. In other words, after the start of the match the
robot may expand up to a maximum volume of 60 inches by 60 inches by 60 inches. The one exception to the
height restriction is provided in Rule <R13>. Any restraints (elastic bands, springs, etc.) that are used to
maintain starting size must remain attached to the robot for the duration of the match."

<S03> still wins. Your shooter (and barrel, as clarified by Q&A) must remain in the 28" by 38" footprint for the entire match. Length is only limited by what you can fit into the box at the start and cannot expand out of it.

Why does <S03> win here? 2 reasons: 1) It's a limiting agent on <R08>, and 2) It's a safety rule and will be heavily enforced.