AutoCAD Drawings
 

Check the White Papers for some AutoCAD field drawings & such.

Converting AutoCAD to pdf file
 

Would it be possible to convert the AutoCAD files into a pdf file or something else we can open in WORD?

I am just getting heiroglyphics.

Thanks.

These files can only be opened in AutoCAD. I don't have AutoCAD or I would convert them.

I'll direct this thread to the proper people. ;)

Field Layout
 

The field layout sent was an earlier version that does not show the four foot diagonal 2" by 4" corner boards that the committee wanted in the corners, in front of the human player stations. The modified layout will come your way soon. I believe the field pieces are all shown correctly. If you can't open the CAD files here, all people on the OCCRA e-mail list have been sent files that can be opened in Word.

please forward files to me
 

Can someone please forward the files all the teams received by e-mail. For some reason Team 469 was not on the list. We would like to build field components tomorrow and are frantically looking for drawings we can read.

My e-mail address is:
GSALP@aol.com

Thank you for your support.

I cant download the drawings, it says the file does not exist, if someone could email them to me at jp2morga@oakland.edu it would be good.

size of plywood for cart
 

The acrobat reader files I received to don appear to show a dimension for the plywood bottom of the cart. It shows casters, corner radius, etc. Do you know the length of the plywood.

Thanks.

I am ctually looking forthe length and width of the piece of plywood for the bottom of the rolling cart that the top rail and wheels mount to.

ie. what size piece of plywood? 2ft x 2ft, or 3ft by 3ft?

Yesterday our team built a cart and the tower. If i remember correctly and understand what dimension you are asking for, its 2 feet. (The width/height of the cart.)

We had to open the drawings in autocad and put in an extra dimension to figure it out.

Also, for anyone who wanted to know, the pipe flanges that attach the pvc to the wood bases are NOT drawn to scale.

PS: I included a pic to show what dimension i mean. (I really dimensioned it yesterday, but because i only have 3ds max at home, i hade to open the .dwg file up in max and then add the dimension in paint)

PPS: If you need to get any other dimensions, post and i'll try to get them for you

Field Drawings - improved
 

Justin Howard has promised improved, accurate drawing in a few days.

These will include the error corrections of the corners that should be 4 feet on diagonal not 8 feet. This is where the human player station will be. There will be a clear protective barrier placed that will allow balls to roll to the human.

What is different is the distance between human players, as that is now increased when correcting the drawing.

We will be asking Jim Meyer to convert them with ACROBAT Reader.
Hey, Jim Meyer can you do this for us? Contact Justin please.

No problem
 

I'll send him an email.

php error
 

the file that is downloading for 2002 OCCRA Field Layout is jut the php error page.

aparently the file is not on the cd site or the link name is worng.

Re: php error
 

Thats what I get for manually adding it to the white papers. I'll fix.

*EDIT* Fixed *EDIT*


I also have a PDF that Justin sent me last night ... but Eudora corrupted it... :\ I'll get that online ASAP, once I get a new version of it...

Errors in CAD drawings
 

There are a few things left out in the CAD drawings for the OCCRA 2002 carts. For starters, what is the thickness and size of the wood platform? Second is what material are the 1.25" floor flangesthat connect to the 1.5" PVC pieces?
Any information would be a big help.
Thanks in advance,
C. Fox 247 Da' Bears

Floor flanges
 

The carts are 2' x 2' and made of the same 3/4" plywood as the goal tower; note that the corners of the cart are rounded to match the radius of the floor flanges (they did not appear that way on one of the views I saw). The floor flanges are iron and were available at Home Depot (at least they used to be: I haven't checked lately). They are the same as the flanges on the goal tower.

Floor flanges
 

Thanks for the details. But there's a new probelm. How do i join the PVC to the flanges? They're 2 different sizes. Is there an adapter or something?
Any information would help a great deal.
Thanks again in advance
C.Fox 247 Da' Bears

Flange slop - Official
 

What was done on the game piece was a wood dowel plug was installed inside the plastic and the set screws ( set screws suck ) used to hold in place.

In high stress areas there will be a thru bolt for safety.

which is official?
 

is the dowel plug the official answer or has it been deemed official that set screws suck?

FIeld Layout
 

How high are the borders to the OCCRA 2002 field?
C. Fox 247 Da' Bears

OCCRA
 

How high are the borders to the OCCRA 2002 field?
Has any team built the goal structure yet? If so, how many balls can it hold?
C. Fox 247 Da' Bears

Fox, simple math, if the goal is 6 feet tall, that's 72 inches. Each playground ball is 10 inches. 72 / 10 = roughly 7 balls in the tall portion.

set screws -suck official
 

That's now official.

The plug is just for support and will not affect the game piece.

Floor Flange Options
 

How authentic do you want to be? We used Kee-Klamp floor flanges (a catalog order item), but the Hazel Park team is using the 1.25" Home Depot floor flanges and screwing a threaded PVC fitting into it, then inserting the PVC columns into them. A quick, low-tech solution would be to take some 2" by 4" boards, form them into a square, drill a 1.25" hole half way through them and stick the PVC into the holes. Whatever's right.

Field Border Size
 

The field border is made from two 2" x 4" boards fastened at right angles to each other; a flat 3.5" side is vertical and faces the playing field. The other 3.5" side lies flat on the carpet and has holes drilled in it every 8' where a 16" piece of 1.25" PVC is inserted vertically; each piece of the PVC pipe has holes drilled into it where ropes pass through; there are two ropes that go through each upright PVC pole and encircle the field. This barrier is not meant to be interacted with by the robots; it has been designed to contain rolling balls and to keep robots from accidently leaving the carpeting. In front of each player station will be a 3' tall, 4' wide barrier made from pipe and Lexan; balls will be able to roll under the barrier as there is a 12" high slot at the bottom where there is no Lexan.

specs on towers
 

Can someone please measure the following on the ACTUAL competition tower:

1. The distance from the floor to the top of the plywood (the surface where the PVC poles are mounted)

2. The distance from the outer edge of the plywood to the PVC (not the flanges) ie. the inset distance, both on the encased PVC and the unencased PVC

Thanks.

Specs on Tower
 

The distance from the floor to the top of the plywood is 4 5/8"

The distance from the outer edge of the plywood to the pvc is 2 1/8"

What is the greatest possible diameter of the flanges on the cart? ( The part where the pvc is insearted, not the bottem of the flange.)

Thanks

Consider also the other 5 inches from floor to flanges, 6, MAYBE 7 balls will fit. + 2 in the mini tower

Flange diameter
 

I can't say the exact outer diameter at the top of the cart flange: they are at school and I'm at home now. I'd guess about 1 3/4" but here's a picture: you can guess for yourself...

Flange Picture
 

Something went wrong: I'll try attaching the picture file one more time.

Tower
 

I have some more questions about the tower.
1.) What are the dimensions of the ring that goes on top of the small tower?
2.) Since the small tower and the big tower seems to share a floor flange in the drawing, how does the ring attach to the small tower but not obstruct the larger tower?
3.) Does it matter whether the casters are fixed caster or pivot casters?
4.) Is ther a final answer on how to attach the center pivot yet?
5.) Why does the CAD drawing say we need 20 floor flanges? The drawing doens't show nearly that many

WE NEED ANSWERS!
 

Since we don't have the answers to the questions above, our team's building is being delayed. We need answers fast. Any help would be greatly appreciated.

Answers
 

Call and talk to Justin at OTC. He made the cad drawings from sketches that Jim Zontag made.

Goal Tower Info.
 

I do not know all the answers now, but when I get to school tomorrow I will check on them; here are the ones that I do know:

2.) Since the small tower and the big tower seems to share a floor flange in the drawing, how does the ring attach to the small tower but not obstruct the larger tower?
A HOLE IS CUT IN THE RING OF THE SMALL TOWER AND THE PVC OF THE TALL TOWER PASSES RIGHT THROUGH IT; SEE THE ATTACHED PICTURE
3.) Does it matter whether the casters are fixed caster or pivot casters?
THE CART CASTERS ARE 2.5" SWIVEL TYPE, THE GOAL TOWER USES 2.5" FIXED TYPE
4.) Is ther a final answer on how to attach the center pivot yet?
A FLOOR FLANGE IS BOLTED TO THE LOWER PLYWOOD, A PIPE THREADED ON BOTH ENDS, CALLED A NIPPLE, IS THREADED ON TO THIS FLANGE, THE UPPER PLYWOOD IS SET OVER THE PIPE SO THAT THE NIPPLE PASSES THROUGH A HOLE IN THE CENTER OF THE UPPER PLYWOOD, AND FINALLY, A FLOOR FLANGE IS INVERTED AND THREADED ONTO THE TOP OF THE NIPPLE.
5.) Why does the CAD drawing say we need 20 floor flanges? The drawing doens't show nearly that many
IT TAKES 12 FLANGES TO BUILD THE GOAL TOWER AND 8 FLANGES TO BUILD THE TWO CARTS.

I truly apologize. I just sent drawings to Brandon to post on the white pages but the measurements to the rings are 11.5 I.D. and 16 O.D.

u can use illustrator to open those files. I have tried it and u can see the files.