WHAT IS THE PYRAMID HEIGHT?

[swwrobotics]

Hey everyone, my team is really confused about the heights of the pyramid rungs and we would like to get some clarification on the height of it. My team thinks that the 1st rung is measured 30 inches from the floor to the middle of the rung, based on the figure 2-7 drawing in the game manual (http://frc-manual.usfirst.org/viewItem/3#2), which the Q&A people said to refer to. However, if you watch the field tour video, one of the guys clearly states that the 30 inches is measured from the floor to the top of the first rung. (http://www.youtube.com/watch?v=U8E27...y8wIL&index=1).

So does anyone have a good idea of what the right measurements are? Has anyone downloaded the CAD of the field and checked? I'm really sorry about this but I feel that this has been unclear to a lot of people.

[GaryVoshol]

The official field drawings have the official measurements. Just like the manual has the official rules - anything you hear in the game animation doesn't count.

[EricLeifermann]

Originally Posted by swwrobotics

Hey everyone, my team is really confused about the heights of the pyramid rungs and we would like to get some clarification on the height of it. My team thinks that the 1st rung is measured 30 inches from the floor to the middle of the rung, based on the figure 2-7 drawing in the game manual (http://frc-manual.usfirst.org/viewItem/3#2), which the Q&A people said to refer to. However, if you watch the field tour video, one of the guys clearly states that the 30 inches is measured from the floor to the top of the first rung. (http://www.youtube.com/watch?v=U8E27...y8wIL&index=1).

So does anyone have a good idea of what the right measurements are? Has anyone downloaded the CAD of the field and checked? I'm really sorry about this but I feel that this has been unclear to a lot of people.

The video says that level 1 goes from the floor to the top of the 1st rung, it does not say that the top of the rung is 30" off the ground.

[MrForbes]

We'll probably build our robot to work with a 2.5" range of possible bar heights.

If you can't do that, maybe you could make it adjustable over a .75" range, just in case.

Good luck!

[Kevin Sevcik]

The solidworks model puts the the center of the first rung at 29.916" above the floor. Slightly less above the pyramid base, obviously. Those are the drawings the field was constructed with, so they're likely accurate within tolerances.

[SenorZ]

Unless you have an official field to build your robot on, build with error in mind!

[swwrobotics]

Wow, thanks everyone for the advice! This actually helped a lot. My team will probably try to make our design adjustable if it comes to it just in case.

[Andrew Schreiber]

Originally Posted by SenorZ

Unless you have an official field to build your robot on, build with error in mind!

Even then. Fields do vary. My personal favorite was in 08 when the overpass started to sag.

[EricH]

Originally Posted by Andrew Schreiber

Even then. Fields do vary. My personal favorite was in 08 when the overpass started to sag.

Expect up to a 4" tolerance in overall field dimensions, and 1/4" in any given assembly. IIRC, that's what the manual states, or close to it. If you need it to be within 1/8", you don't have enough leeway.

[pfreivald]

It took us too many years to learn that all FRC values are nominal...