Re: Q&A:612 Rock Wall Dimension Change
 

I said pitchforks; you just killed a guy with a trident!

You should probably lay low for a while.

Re: Q&A:612 Rock Wall Dimension Change
 

And thus began the Stronghold riot of 2016...

Re: Q&A:612 Rock Wall Dimension Change
 

I mean, it isn't the surprise ball inflation issues of 2014 or the whole 2015 game... It could be worse.

Re: Q&A:612 Rock Wall Dimension Change
 

I've known teams to reconfigure their entire robot during the first day of a competition. I think that, two weeks into build season, teams will survive this surprise.

Re: Q&A:612 Rock Wall Dimension Change
 

I think we should follow the advice of Q&A 535

https://frc-qa.firstinspires.org/Que...5/questionlink

With enough emails hopefully they will listen. Just like emailing your elected representative. Someone could even type a form letter in this thread to cut and paste to FIRST.

-matto-

P.S. Poor Frank is going to get mobbed on GameSense with this question.

Re: Q&A:612 Rock Wall Dimension Change
 

Add a 1/2" of wood on back side and get over it. Or add 1/2" of extruded aluminum to top face and get over it........ Literally :p

Re: Q&A:612 Rock Wall Dimension Change
 

Rebuilding the team version of the obstacle is really the least difficult part of dealing with this change. Some of us have already designed our drivetrains and are locked into solutions that will at best be sketchy and at worst just not work with the new dimensions.

Re: Q&A:612 Rock Wall Dimension Change
 

It's probably more than 20% for most teams since this isn't being conveyed in a Team Update until Friday, which is Day 14 of the build season.

This game is by far the most difficult for teams in terms of field construction. It's unfortunate that teams now have to remake this section of the field, especially for teams who went with metal version. Not to mention the impact on teams who have prototyped and designed drivetrains based on the original incorrect spec. The obviously isn't a deal breaker for anyone as teams can find ways to work around this, however it's still frustrating and disappointing. Over the past few years in FRC, the GDC has basically always made team/customer friendly decisions when it comes to changes like this; hopefully they'll reconsider this one to keep with that trend.

Re: Q&A:612 Rock Wall Dimension Change
 

The other pertinent question is which is easier to fix and which does FIRST have more control over? 20 ish fields (best guess, there are probably less), each containing 2-3 rock wall defenses (assuming they are all built already). Or 3000 teams?

With the Team Update unreleased, but coming, do we start swapping our rock walls now? Or Friday? What if they reverse it?

Sigh.

I feel like they released that Q&A too quickly.

Re: Q&A:612 Rock Wall Dimension Change
 

Originally Posted by Sunshine View Post
Add a 1/2" of wood on back side and get over it. Or add 1/2" of extruded aluminum to top face and get over it........ Literally

Wow, that pun went over well!
Chris, I hope that your team gets over it, and over it, and over it, and over it.........

Re: Q&A:612 Rock Wall Dimension Change
 

FIRST dun goofed. They should just keep it as it was written. This is a game of inches and they just added one.

Re: Q&A:612 Rock Wall Dimension Change
 

Are we joking here? Field tolerances an different regionals have always been +/- 1 in. Apparently this year the field drawings are the same.

Re: Q&A:612 Rock Wall Dimension Change
 

One would hope certain field tolerances could be held slightly tighter than that, though. I mean if the rock wall was 5.5x5.5 and the moat walls were an extra inch taller, they'd be enormously more difficult. Or if the rough terrain gaps were 2.5" instead of 1.5".

Mostly I don't think the +/- 1" should apply to the defenses because they're such an integral part of the game. It's like the boulders were suddenly 9"-11" diameter. It has the potential to greatly affect robot performance.

Also, the situation is pretty insane. Literally every piece of information given to teams says 4.5" up to and including the CAD drawings. It seems like it's obviously a manufacturing error, and if I shopped out parts and had them come back 25% out of spec, they'd be sent back as rejected and I'd probably be looking for a new supplier.

Re: Q&A:612 Rock Wall Dimension Change
 

The field drawings contain the tolerances, which vary based on the field element. Check out the field assembly document.

The overall length of the field is +/- 3", because that's a dimension that's incredibly difficult to get perfect, and impossible to keep consistent over the course of a 3 day competition.

Measurements from a wall to a piece of tape (and tape to tape) are +/- 0.5", and those are easier to keep within spec.

Re: Q&A:612 Rock Wall Dimension Change
 

UPDATE: FRC Q&A Has revised the response to Q612:

Hopefully this means they are reconsidering what the "true" field dimensions will be. I'm sure we'll get some more insight on GameSense tonight with Frank.