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  #16   Spotlight this post!  
Unread 03-02-2009, 12:28
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Re: Shooting Distance

We were orginally looking at a 10 - 12 foot range but noticed two things we when started to test it out. First, after each shot, the motor and wheels would not get back up to speed and we would lose about 4 - 6 inches off each shot, so shots would start to miss after the first 3 or 4 unless we only shot 1 per second. Secondly, the longer shots tended to drift left and right due to the geometry of the orbit balls - even with a nice top spin. We were looking at about 66% - 75% accuracy with that configuration. So we regeared down to a lower rpm and greater torque - so the rpm recovery time was almost instanteous, and we found we didn't have any drifting. So we are looking at the 0 - 5 foot range for shooting effectively. We can shoot 20 balls, with almost 100% accuracy, in less than 6 seconds at those distances.

Glenn - have a great season - too bad we will be at a regional with you guys this year! I wish you all great success!

Steve
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Unread 03-02-2009, 12:47
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Re: Shooting Distance

We're also working on a speed sensor for the shooter, to keep the shooter wheel rpm constant.
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Unread 03-02-2009, 12:54
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Re: Shooting Distance

At 620 rpm, we were at 7 feet with 75% accuracy. However, that was just our latest prototype. The real thing will be ~4200rpm max with guided rails for more accuracy... so we'll see

Of course we're scaling it back down to 10-12 feet for accurate shots, and 3-4 feet for maximum throughput. I do like the idea of a miraculous cross-field shot though...or a 'rain' of orbit balls from 20 feet in the air .
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Unread 05-02-2009, 13:20
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Re: Shooting Distance

Ours is shooting at 8 feet with about 98% accuracy
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Unread 05-02-2009, 13:46
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Re: Shooting Distance

We got 5 inches, 100% accuracy.




We're now re-gearing our shooter.
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Unread 05-02-2009, 13:48
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Re: Shooting Distance

we've gotten between 15 and 21 feet, but are working on a new shooter.
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Unread 05-02-2009, 15:09
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Re: Shooting Distance

We've got our shooter going at around 8-10 feet, and that's working pretty well
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Unread 05-02-2009, 16:04
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Re: Shooting Distance

Our turret has a 5-7 feet range
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  #24   Spotlight this post!  
Unread 05-02-2009, 16:10
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Re: Shooting Distance

We have a range, so far, of 6-8 feet... but we can shoot 2 balls at the same time... without much change in the distance...+- 6 inches

This just might be fun....
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