Re: Balancing a Pneumatic wheel
 

I have to second the "pool noodle" fix. We went the way of balancing the wheel but did not like the potential catastrophic results that might ensue. We tried the pool noodle and an increased speed gearbox on a cim. We were slamming the frisbee into the wall 51 feet away with only a 10 degree elevation of the shooter and a drop of 20 inches.
I can't see why anyone who now knows this would chance an injury resulting from flying debris when this can be done quite easily. I can't see of any circumstance where a tube is necessary and not replaceable with a noodle. (I guess if the whole mechanism is "buried" and too difficult to change it might be understandable).

Re: Balancing a Pneumatic wheel
 

Several things we found essential for being successful with this tire (over 100ft. range, full court shooter).

• Machined 8lb. billet steel wheel that serves as 1/2 the rim
• Machined rim to reduce wobble
• Dynamically balanced assembly
• Upper bearing for support (reduced vibrations majorly)
• Machined tire for a profile with maximum frisbee contact
• Inner tube was essential to adjust frisbee tension (we found a specific air pressure that is increased as the tire wears)

We are powering the semi circle shooter with a mini cim and spin gear box, mounted with a machined aluminum motor mount.