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I agree with Robot Bill:   You best bet is ensure your robot can perform with a wall which is either short or tall.  

For what it is worth, to the best of my knowledge, I think that all tables currently used in Virgina-DC tournaments were built with 2x4s for wall.

Steve Scherr
 Virginia-DC FLL Referee Advisor

On Tue, Oct 30, 2018 at 1:47 PM Robot Bill <[log in to unmask]> wrote:
3-15⁄16" (100mm) is the maximum height of an official FLL table's walls.What will be at your competition may vary depending on the competition, but all the walls will be the same height at that competition.

The table construction for official FLL Tournaments comply with the instructions provided by FIRST in the field setup instructions: https://firstinspiresst01.blob.core.windows.net/fll/2019/FIRST-FLL-2018-19-FieldSetup-Letter.pdf. On page 3, it tells us, "The height of B and C must measure between H = 2-½" (64mm) and 3-15⁄16" (100mm)."

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For those that are unaware, the rationale for the large tolerance in the wall height enables FLL to be an international program. Standard wood sizes vary from country to country. For example, in Europe, you cannot easily get a 2x4 like you can in the USA.

Technically, in the USA, there are two common dimensional lumber sizes that can be used for the walls of a FLL table (between 64mm and 100mm tall): a 2x3 and a 2x4. The actual sizes of these two are 1-1/2" x 2-1/2" (38mm x 64mm) and 1-1/2" x 3-1/2" (38mm x 89mm).

You best bet is ensure your robot can perform with a wall which is either short or tall. You can also ask the tournament coordinator what wall sizes they intent to use.

Bill



On Tue, Oct 30, 2018 at 12:49 PM Piyush Radadiya <[log in to unmask]> wrote:
Hi,

This is a question on the height of the side wall from the mission mat to the top of wall. The table build guide says that minimum is 2.5" to maximum 3.5". We have experienced that this height is well above 3.5" on competition tables. does anyone know the maximum height of wall at the competition?

Thanks,
Piyush

On Tue, Oct 30, 2018, 2:33 AM Laura Perlini <[log in to unmask]> wrote:
Hi all,

I have so appreciated reading responses to various questions posted on this listserv. It has helped me learn a lot as a rookie coach. So a huge thanks to you more experienced coaches for answering questions so promptly.

My team (BrainSTORM Troopers) has a question regarding the Satellite Orbits Mission (M12). The rules say you get points for any satellite on or above the two outer orbit lines. Does anyone know how “above” is defined? Is there a certain range/distance from above the outer orbit lines we should be staying within?

Thanks in advance for any response!

Take care,
Laura

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