Orbit Balls

[May_Walter]

1. what is their wheigt is grams?
2. what is the name of the fabruc they were originally made of?

thanks a lot
May Walter, Team 3038.

[MrForbes]

Weight is half a pound. That's 8 ounces. 8 x 28 g/oz = 224 grams (approximately).

The fabric is Spandex (like is used for bicycle riding pants)

[May_Walter]

Originally Posted by squirrel

Weight is half a pound. That's 8 ounces. 8 x 28 g/oz = 224 grams (approximately).

The fabric is Spandex (like is used for bicycle riding pants)

wow that was quick, thanks a million, you really helped us!

[jamie_1930]

And extras can be found at Walmart, I believe. We were able to get about ten additional the day after competition. Only problem is they are about ten dollars a ball

[MrForbes]

If you're in Israel, it might be a long flight to the nearest Walmart

[May_Walter]

you got that right..
nothing is easy when located so far away.

[OScubed]

May:

the bands on the inside can be made from lexan plastic, and the padding can be either very thin foam, or just cotton batting (we used cotton - cheaper and easier to work with). Although the original balls use a plastic connector to connect the bands when you fold them, we have used two holes (drilled in the end at a diagonal from each other) so that if you overlap the ring ends you can put a pop-rivet through the holes and attach. There are several good step-by-step construction instructions on Chief Delphi, or feel free to contact Team 1511 at www.penfieldrobotics.com for help with construction tips. Since we're making over 100 of them to host a local competition we've been getting pretty good at it

Cheers,

[NorviewsVeteran]

One of the coaches massed a few of them, and they are 235g.

[MrForbes]

Originally Posted by NorviewsVeteran

they are 235g.

Thanks for the correction!

[NorviewsVeteran]

No problem, he wrote it on some of them. At first I thought we had bummed some orbit balls from team 2359.

[Ted Weisse]

Here are two links that might be helpful...

HOW TO: Make Homemade Orbit Balls
http://www.chiefdelphi.com/media/papers/2187?

and

Orbit ball template
http://www.chiefdelphi.com/forums/sh...ght=orbit+ball

You might be able to make them from these...