Chief Delphi - 2014 Game Ball Damage

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Chief Delphi (http://www.chiefdelphi.com/forums/index.php)

- Kit & Additional Hardware (http://www.chiefdelphi.com/forums/forumdisplay.php?f=55)

- - 2014 Game Ball Damage (http://www.chiefdelphi.com/forums/showthread.php?t=124416)

BBray_T1296

16-01-2014 01:14

Re: 2014 Game Ball Damage

Quote:

Originally Posted by cadandcookies (Post 1327883)

After looking at that site, I really want to see one of those 8' or larger balls as a game piece. Not really sure how scoring would work, but I'd imagine the robots would be tanks.

Sorry to tangent, but WHY ON EARTH would you pay $2,800 for a 15 foot soccerball!?!

DampRobot

16-01-2014 01:35

Re: 2014 Game Ball Damage

Quote:

Originally Posted by BBray_T1296 (Post 1327888)

Sorry to tangent, bot WHY ON EARTH would you pay $2,800 for a 15 foot soccerball!?!

I've saved for it since I was 5.

My idea was to use it as a house.

Which could roll around like a hamster wheel.

On Mars.

loyal

16-01-2014 06:44

Re: 2014 Game Ball Damage

Quote:

Originally Posted by DampRobot (Post 1327894)

I've saved for it since I was 5.

My idea was to use it as a house.

Which could roll around like a hamster wheel.

On Mars.

A mental vision of that is disturbing. :D

tim-tim

16-01-2014 07:04

Re: 2014 Game Ball Damage

Quote:

Originally Posted by Hallry (Post 1325583)

Instead of waiting for AndyMark to get them from Sportogo and then buy them from AndyMark, why not just buy them straight from Sportogo? They don't have any with the official FIRST logo on them, but you can get a same size/weight ball with a tennis ball/magic 8 ball/etc. cover instead, and they are cheaper that way. Or, if you already ordered some extra balls from AndyMark and those popped, you can keep the cover and just order new bladders from Sportogo.

Or you can buy the official FRC Ball directly from SPORTOGO. I believe the part number is SP-014ROBOT. I placed an order for two of the "25in Volleyballs" (one red and one blue), and received an email asking if I was part of an FRC team and that I could switch my order to the official balls. I don't think the balls are listed on their site, but give them an email or call.

The balls are still $52ea.

Gdeaver

16-01-2014 10:03

Re: 2014 Game Ball Damage

Our ball has 2 leaks. Has anyone used a inner tube patch kit. I worry that the solvent will melt the foam material. We are currently using a bladder from 5 below until we get our replacements.

discobrisco

16-01-2014 11:44

Quote:

Originally Posted by Gdeaver (Post 1327988)

Our ball has 2 leaks. Has anyone used a inner tube patch kit. I worry that the solvent will melt the foam material. We are currently using a bladder from 5 below until we get our replacements.

I'd recommend just using an exercise ball and ordering a new one tbh, we had no luck successfully patching ours, the tear just continued to get bigger.

Flyte

16-01-2014 11:49

Re: 2014 Game Ball Damage

Could you say what RPM you were using when the ball popped so those of us who have yet to pop ours know what is "too fast"?

KevinG

16-01-2014 15:01

Re: 2014 Game Ball Damage

Quote:

Originally Posted by tim-tim (Post 1327929)

I'd rather have a smiley face ball personally.

Ether

16-01-2014 15:41

Re: 2014 Game Ball Damage

Quote:

Originally Posted by Flyte (Post 1328041)

Could you say what RPM you were using when the ball popped so those of us who have yet to pop ours know what is "too fast"?

It's not simply RPM. It's compression, wheel diameter, tread material, number of wheels, wheel placement (angle of contact with ball), ball inflation, random factors (hit the seam or the zipper the wrong way), etc etc etc.

DonRotolo

16-01-2014 22:31

Re: 2014 Game Ball Damage

Well, here's a photo of one of our prototype shooter wheels, and we did eventually pop the ball. But we repaired it (the ball) with a bicycle patch kit.
:rolleyes:

Ether

16-01-2014 22:33

Re: 2014 Game Ball Damage

Quote:

Originally Posted by DonRotolo (Post 1328344)

Well, here's a photo of one of our prototype shooter wheels, and we did eventually pop the ball. But we repaired it (the ball) with a bicycle patch kit.
:rolleyes:

Thanks Don. You made my day.

DampRobot

17-01-2014 00:16

Re: 2014 Game Ball Damage

Quote:

Originally Posted by DonRotolo (Post 1328344)

Well, here's a photo of one of our prototype shooter wheels, and we did eventually pop the ball. But we repaired it (the ball) with a bicycle patch kit.
:rolleyes:

The real question is, did it improve grip?

loyal

17-01-2014 09:25

Re: 2014 Game Ball Damage

Quote:

Originally Posted by DonRotolo (Post 1328344)

Well, here's a photo of one of our prototype shooter wheels, and we did eventually pop the ball. But we repaired it (the ball) with a bicycle patch kit.
:rolleyes:

Very funny. Do you really expect us to believe that?

That you used a bicycle patch kit.:rolleyes:

BigJ	17-01-2014 09:32

Re: 2014 Game Ball Damage

Quote:

Originally Posted by DonRotolo (Post 1328344)

Well, here's a photo of one of our prototype shooter wheels, and we did eventually pop the ball. But we repaired it (the ball) with a bicycle patch kit.
:rolleyes:

Don, do you have any numbers on the coefficient of friction between your wheel and the ball?

Jibri Wright

17-01-2014 23:59

Re: 2014 Game Ball Damage

Quote:

Originally Posted by DonRotolo (Post 1328344)

Well, here's a photo of one of our prototype shooter wheels, and we did eventually pop the ball. But we repaired it (the ball) with a bicycle patch kit.
:rolleyes:

coefficient of friction: 1.000000.....1
Yup, broke physics

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