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-   -   **FIRST EMAIL**/Advance Materials List and Autodesk Virtual Kit of Parts Information (http://www.chiefdelphi.com/forums/showthread.php?t=41189)

Madison 06-01-2006 02:38

Re: **FIRST EMAIL**/Advance Materials List and Autodesk Virtual Kit of Parts Informat
 
Quote:

Originally Posted by DeepWater
I don't want to sound like a smart butt but I don't understand your response. I don't know about you but I can rip a 10' 2x4 on my table saw into 2 10' lengths if I cut down the middle. I can cut at an angle and get anything in between (i.e. two 6' long 2x4s with pointed ends). I could even cut two 10' long triangle wedges if the 10' 2x4 was cut on a diagonal. I make no claims that anything I cut will be straight though. ;) My point is I'm not assuming anything about how we may or may not cutup and use any of the material on the list.

Well, of course, but wouldn't it be a bit silly for FIRST to have us buy 2x4s only to make them into 2x2s? :p

I was just pointing out that you can't get two 5' 2x4s from a 10' 2x4, but even that's not true, apparently. As with their width and height, I'm told, 10' lumber is actually not 10'. It's a bit longer. Or so says the guy who works at Home Depot.

(This is why I hate lumber.)

sanddrag 06-01-2006 02:42

Re: **FIRST EMAIL**/Advance Materials List and Autodesk Virtual Kit of Parts Informat
 
Quote:

Originally Posted by M. Krass
(This is why I hate lumber.)

Pipe is nearly as bad. One day they (yes, the mysterious "they") need to redo the naming/reference system on lumber and pipe.

Madison 06-01-2006 02:44

Re: **FIRST EMAIL**/Advance Materials List and Autodesk Virtual Kit of Parts Informat
 
Quote:

Originally Posted by sanddrag
Pipe is nearly as bad. One day they (yes, the mysterious "they") need to redo the naming/reference system on lumber and pipe.

...and heaven forbid that you confuse pipe and tubing. Oh man.

varcsscotty 06-01-2006 03:56

Re: **FIRST EMAIL**/Advance Materials List and Autodesk Virtual Kit of Parts Informat
 
are you sure it's longer? i thought it was approx. 1/16th shorter because the mill has to cut it down so some of it becomes sawdust....not that it makes a huge difference... but it might to my engineer team membes :)

JohnBoucher 06-01-2006 05:47

Re: **FIRST EMAIL**/Advance Materials List and Autodesk Virtual Kit of Parts Information
 
Very, Very difficult to roll a sheet of Lexan, even 1/8"

Tom Bottiglieri 06-01-2006 06:57

Re: **FIRST EMAIL**/Advance Materials List and Autodesk Virtual Kit of Parts Informat
 
Quote:

Originally Posted by JohnBoucher
Very, Very difficult to roll a sheet of Lexan, even 1/8"

The 1/8" thickness might allow you to get away with a slight curve, but for the most part I agree: No rolling of the lexan will be done this year.

artdutra04 06-01-2006 08:03

Re: **FIRST EMAIL**/Advance Materials List and Autodesk Virtual Kit of Parts Informat
 
Quote:

Originally Posted by Tom Bottiglieri
The 1/8" thickness might allow you to get away with a slight curve, but for the most part I agree: No rolling of the lexan will be done this year.

Heat guns could solve that. :rolleyes:

Noah Melamed 06-01-2006 08:09

Re: **FIRST EMAIL**/Advance Materials List and Autodesk Virtual Kit of Parts Information
 
We curved lexan on our front hardware shield in a 90° arc. While bolting it down we heated with a heat gun for 15-20 minutes. Wheen I took off the pieces after they had been bolted at that angle for over a year the Lexan sprung back flat with only minor deflection. :ahh: maybe we did something wrong but im pretty sure you won't get too much of a bend.

Don Wright 06-01-2006 09:31

Re: **FIRST EMAIL**/Advance Materials List and Autodesk Virtual Kit of Parts Informat
 
After further thought and discussion with some people, I believe I was incorrect on my assumption that we wouldn't have to drive on the lexan. Not that this means anything to anyone...

Nitroxextreme 06-01-2006 09:38

Re: **FIRST EMAIL**/Advance Materials List and Autodesk Virtual Kit of Parts Information
 
In regards to the bending of lexan...
Last year we made a lexan "hood" out of 1/8 Lexan and it had a slight bend in it...this bend however slight it was stayed consistent

This was acomplised by the use of a heat gun

1075master 06-01-2006 10:58

Re: **FIRST EMAIL**/Advance Materials List and Autodesk Virtual Kit of Parts Informat
 
if u read up on one of the items it is called luan! the person who works at home depot and found out the mailbox thing also gave us info that luan is very flexible. it is used as a sub floor in damp areas. yes it is for damp areas but keep in mind water is messy and bad for the robots so its DEFINETLY NOT being used for its water proof purpose but probably more for its flexibility.
i also just thought of the fact that they are trying to keep the field cheap so the lexan could be used as part of an end zone that the players stand behind because it may be an obstacle for the human player as in '04. but 2 sheets? that makes me a bit skeptical that i'm somewhat correct. but hey its just a guess!

DUCKIE 06-01-2006 11:07

Re: **FIRST EMAIL**/Advance Materials List and Autodesk Virtual Kit of Parts Information
 
Quote:

Quote:

Originally Posted by ScottM
There's something missing......green paint
So I'm guessing no CMUcam cuz theres no green paint. hm...so whats Montanas green heights?
Was there green paint on the list last year?

Because that is not what FIRST used on the vision tetras. (Or atleast... thats not what my team OR Mike Wade's field used.) They used the roll of green "sticker-like" material stuck to a piece of plastic. Three of which were then attached to each vision tetra. (Which I think came in the kit of parts.)

I think they will keep the cam... just like keeping autonomous... because they are a challenge.

1075master 06-01-2006 11:16

Re: **FIRST EMAIL**/Advance Materials List and Autodesk Virtual Kit of Parts Informat
 
Quote:

Originally Posted by DUCKY
Was there green paint on the list last year?

Because that is not what FIRST used on the vision tetras. (Or atleast... thats not what my team OR Mike Wade's field used.) They used the roll of green "sticker-like" material stuck to a piece of plastic. Three of which were then attached to each vision tetra. (Which I think came in the kit of parts.)

I think they will keep the cam... just like keeping autonomous... because they are a challenge.

see its things like that that screwed people up. first gave us the exact colours to use on the tetras but when u even slightly deviate from those colours everything gets screwed up. people had a hard time because of the lights being different when you go and use tape thats not going to be the exact colour of the competition tetra you are going to have problems.

generalbrando 06-01-2006 11:18

Re: **FIRST EMAIL**/Advance Materials List and Autodesk Virtual Kit of Parts Informat
 
The lexan and diamond plate will be driving/manipulation surfaces of great importance. In 2004 they didn't have us get lexan for the top of the platform...there wasn't that much shoving and it was level. But in 2003 they had us get the HDPE because it's slick and the copper mesh because it was the ramp. They were important driving surfaces - difficult driving conditions and lots of shoving (king of the hill).

My guess is that since there's 96 sq ft of special surface here, we've got another ramp to deal with! Woe is me. I hope I'm wrong :)

ChuckDickerson 06-01-2006 11:32

Re: **FIRST EMAIL**/Advance Materials List and Autodesk Virtual Kit of Parts Informat
 
Quote:

Originally Posted by M. Krass
(This is why I hate lumber.)

Yea, every time I have to use the new less-than-original size 2x(whatever)lumber on my old house it drives me crazy. Everything now is about 1/8 smaller than it was even 20 years ago.

One thing I have always wondered is how is lumber sold in countries that use the metric system? Do they buy 4cmX9cm boards rather than 2x4s and 1.2mX2.4m sheets of plywood rather than 4x8? Seems kind of odd to me either way. Why would a country that uses the metric system sell a 4' x 8' sheet of plywood? Maybe their dimensions are totally different and you would buy a 1m x 2m piece of plywood. Anyone know what the European version of Home Depot sells? I wonder if the International teams have a problem finding 10' 2x4s and 4'x8' sheets of 1/8" Lexan?

sanddrag 06-01-2006 11:39

Re: **FIRST EMAIL**/Advance Materials List and Autodesk Virtual Kit of Parts Information
 
The lexan will be put on the bottom of moveable goals so they slide around. That is my prediction.

Mark Pettit 06-01-2006 11:49

Re: **FIRST EMAIL**/Advance Materials List and Autodesk Virtual Kit of Parts Informat
 
Quote:

Originally Posted by raf4far
So I'm guessing no CMUcam cuz theres no green paint. hm...so whats Montanas green heights?

After reading your post, I went and checked the old 2005 advanced materials pdf file and saw that only the "Sunny Summer" color was included on the advanced list last year. Green, blue, and red were not on that list (probably to throw us off).
I am not counting on robot vision systems (CMU or otherwise ) to be going away, especially based on the list. I just hope that my team will be more successful with vision should it be there for us to utilize this year.

Dave Flowerday 06-01-2006 12:06

Re: **FIRST EMAIL**/Advance Materials List and Autodesk Virtual Kit of Parts Informat
 
Quote:

Originally Posted by 1075master
first gave us the exact colours to use on the tetras

Actually, FIRST initially told us to use a certain color of spraypaint last year that ended up not even remotely close to the real tetra colors. As I recall, they released the "real" green material (which was a plastic adhesive type thing) after some prodding. Perhaps this is why some teams claimed that the camera didn't work well at the competition - if they had been practicing with the green spraypaint, the real tetras looked completely different.

GaryVoshol 06-01-2006 12:41

Re: **FIRST EMAIL**/Advance Materials List and Autodesk Virtual Kit of Parts Information
 
The Lexan and diamond-plate are optional - they could be substituted with smaller pieces or other materials.

My guess - the lexan will enclose or bound something. It's clear so the audience can see what's inside, but it is not critical for the operators to see it. (Maybe because the robot is "seeing" something autonomously?) Thus for practice a team could substitute cheaper plywood.

BrianR 06-01-2006 14:28

Re: **FIRST EMAIL**/Advance Materials List and Autodesk Virtual Kit of Parts Information
 
Hey, has anyone noticed that these carriage bolts are 16" long? I have no clue what is on that list that would need bolts of that length. Corners between 2x4s? Any ideas?

Madison 06-01-2006 14:40

Re: **FIRST EMAIL**/Advance Materials List and Autodesk Virtual Kit of Parts Informat
 
Quote:

Originally Posted by BrianR
Hey, has anyone noticed that these carriage bolts are 16" long? I have no clue what is on that list that would need something of that size. Any ideas?

3/8-16 isn't a length, but a thread type. The -16 means there are 16 threads per inch of bolt. The bolts are spec'd at 4" long.

BrianR 06-01-2006 14:53

Re: **FIRST EMAIL**/Advance Materials List and Autodesk Virtual Kit of Parts Informat
 
okay, thanks for clarification

Chaychay 06-01-2006 15:17

Re: **FIRST EMAIL**/Advance Materials List and Autodesk Virtual Kit of Parts Informat
 
Has anyone had any luck finding the #7 deck screws? I got the #8 no problems.

I've tried Home Depot, Rona, HomeHardware and Brafaso....none of them had size 7. (Nearest thing I found were #7 wood screws @ home depot, but they were too short)

Thanks for any help :)

Billfred 06-01-2006 16:21

Re: **FIRST EMAIL**/Advance Materials List and Autodesk Virtual Kit of Parts Information
 
Quote:

Originally Posted by sanddrag
The lexan will be put on the bottom of moveable goals so they slide around. That is my prediction.

That might also explain the carriage bolts. (If FIRST needed to hold that lexan in place, then they'd need something that didn't dig into the carpet.)

Dr.Bot 06-01-2006 22:21

Re: **FIRST EMAIL**/Advance Materials List and Autodesk Virtual Kit of Parts Information
 
Lexan is slippery. Diamond plate isn't. Looking at all the lumber - there will be platforms, steps, or a combination. Goals will be bins or raised troughs.
I can see the goals being on raised platforms, that have lexan on them. Both defending and scoring on a lexan surface will be 'interesting.'

I think the theme song for this years competition will be: "Slip Sliding Away."

Peter Matteson 06-01-2006 22:49

Re: **FIRST EMAIL**/Advance Materials List and Autodesk Virtual Kit of Parts Information
 
Quote:

Originally Posted by Dr.Bot
I think the theme song for this years competition will be: "Slip Sliding Away."

How about Coolio's "Fantastic Voyage" with the apropo chorus :
"Slide, slide, slippidy slide living the in the city its do or die"

Madison 06-01-2006 23:05

Re: **FIRST EMAIL**/Advance Materials List and Autodesk Virtual Kit of Parts Informat
 
Quote:

Originally Posted by Dzdconfusd
How about Coolio's "Fantastic Voyage" with the apropo chorus :
"Slide, slide, slippidy slide living the in the city its do or die"

The original from which Coolio sampled, while not lyrically appropriate, is a far better song.

sanddrag 06-01-2006 23:12

Re: **FIRST EMAIL**/Advance Materials List and Autodesk Virtual Kit of Parts Information
 
Quote:

Originally Posted by Dr.Bot
I think the theme song for this years competition will be: "Slip Sliding Away."

Interesting you mention that. I wasn't going to really come out and mention this before because I didn't know how credible it was, but maybe you've heard the same thing I've heard. See, I was talking to someone who knows someone on the GDC (but of course they can't tell much) and they said to listen to the song "Landslide" (the Dixie Chicks do a wonderful version of it). Anyway, I did, and found the interesting lyrics:

"And if you see my reflection in the snow covered hill, well the landslide brought me down."

Actually, a lot of the other lyrics too can be related to a potential FIRST game.

Interesting...

Peter Matteson 06-01-2006 23:29

Re: **FIRST EMAIL**/Advance Materials List and Autodesk Virtual Kit of Parts Informat
 
Quote:

Originally Posted by M. Krass
The original from which Coolio sampled, while not lyrically appropriate, is a far better song.

Why I went with that choice. Also it was popular when I was in highschool.
Oh man, I just dated myself again.


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