Full Court shot

[bfk]

Originally Posted by dtengineering

Before I go all "safety mode", let me just point out that is a very cool shot and I'm pretty impressed. Okay... now its time for the tech inspector in me to express a concern...

I know this is just a prototype, and that you're probably already planning a safety shield for this shooter, but I think teams should be aware that not only are these wheels not designed to spin at high RPM, but that they store a significant amount of finger-ripping energy when they do.

It is much easier to build safety shields in to your design than to add them as part of tech inspection!

Thanks,

Jason

Definitely a design consideration. I personally need all the limbs and eyeballs I currently have, and I assume other feel the same way.

[bfk]

Originally Posted by Brandon_L

That looks like the AM Pneumatic wheel. Were also using that, but it wobbles insanely. How did you manage to fix that? Yours looks pretty stable.

Basically, first of all make sure your motor mount is very stable.
Make sure the hub is perfectly centred on the wheel. We used some thin grippy material between the wheel and the hub to prevent it slipping. Make sure all six bolts are tight.
Then find a piece of something that can fit in the hole in the hub and suspend the wheel like a plumb bob. You'll see it list a lot to one side or the other. The weight of the fill tube leaves it way off balance. Attach weights to the wheel until it balances as perfectly as you can get it. Make very sure that the weights are securely attached, these wheels are really moving fast and a couple of grams at that speed will do serious damage. See Jason's post above.

Then everything is great and hopefully your team-mates will have developed the world's best climber while you were working on the shooter. That part didn't work out that way for us, but a guy can dream.

[TeamUpNext3528]

WoW! That was awesome! Our team is going for the same approach. We are wanting to shoot full court shots. But that really depends if our shooter is accurate enough.

And I do agree, there could be air flow getting in the way of those long shots depending on where the regional is.

[Willyspu]

Any tips on balancing the wheel?

[z_beeblebrox]

Originally Posted by Willyspu

Any tips on balancing the wheel?

Our team stuck a couple of long screws to the inside of the wheel opposite the valve. It seems to be working so far...

[Akash Rastogi]

Here's our full court shot - http://www.youtube.com/watch?v=rNT5c...Jchc5w&index=5

[rai337]

Originally Posted by Akash Rastogi

Here's our full court shot - http://www.youtube.com/watch?v=rNT5c...Jchc5w&index=5

what wheel you used? we've been trying pneumatic wheels and rubber wheels and the pneumatic wasnt stable, while the rubber didnt have much power..

[Orion.DeYoe]

Originally Posted by dtengineering

Before I go all "safety mode", let me just point out that is a very cool shot and I'm pretty impressed. Okay... now its time for the tech inspector in me to express a concern...

I know this is just a prototype, and that you're probably already planning a safety shield for this shooter, but I think teams should be aware that not only are these wheels not designed to spin at high RPM, but that they store a significant amount of finger-ripping energy when they do.

It is much easier to build safety shields in to your design than to add them as part of tech inspection!

Thanks,

Jason

This is definitely a valid point. One our team has considered as well. We are not using the AM Pneumatic Wheel but we attached "Shrapnel Guards" as far around our wheels as we could, so if the wheels wear out and fragment they won't fly out and hit anyone.

[tickspe15]

Don't have a video yet but we were shooting above 90 percent into the 2 point goal from the feeder station. And able to get one load of 4 Frisbees every 10 to 15 seconds

[SciBorg Dave]

Originally Posted by Willyspu

Any tips on balancing the wheel?

Team 4061 went to a tire store and got stick on wheel weights.
The valve stem was the heavy spot so we added 2 wheel weights at 120 and 240 degrees from the valve stem. This gave 3 points of weight the valve stem and the stick on weights. We had to use 1/4 oz at the 2 points. This worked very well to rid vibration.