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-   -   pic: FRC 2869 - 2016 Shooter (http://www.chiefdelphi.com/forums/showthread.php?t=142591)

notmattlythgoe 28-01-2016 08:59

Re: pic: FRC 2869 - 2016 Shooter
 
Quote:

Originally Posted by Orion.DeYoe (Post 1531413)
Yeah, I was attempting to indirectly point out that you can't say a wheel is, or isn't, a flywheel based on its weight. Because whether or not it's "heavy" just depends on how much energy you need to store.

I just wanted to emphasize the fact that the OP's terminology was correct and that these are considered flywheels in this application.

But they're not, these wheels are not storing energy (or at least enough energy to make any difference) which is the exact point of a flywheel.

IndySam 28-01-2016 09:07

Re: pic: FRC 2869 - 2016 Shooter
 
That's a flywheel!


Chris is me 28-01-2016 09:32

Re: pic: FRC 2869 - 2016 Shooter
 
Quote:

Originally Posted by notmattlythgoe (Post 1531415)
But they're not, these wheels are not storing energy (or at least enough energy to make any difference) which is the exact point of a flywheel.

Yes they are. They're storing kinetic energy. If the wheel needs to be spun up before the ball contacts it for it to work as intended, then the wheel is a flywheel. Whether or not it is a particularly good flywheel isn't relevant. Spinning wheel shooters in FRC work by storing kinetic energy, which is exactly what a flywheel is.

Electronica1 28-01-2016 09:34

Re: pic: FRC 2869 - 2016 Shooter
 
Quote:

Originally Posted by notmattlythgoe (Post 1531415)
But they're not, these wheels are not storing energy (or at least enough energy to make any difference) which is the exact point of a flywheel.

It is still a flywheel, just not a particularly good one.

Sperkowsky 28-01-2016 09:50

It's definitely a fly wheel but not in the traditional sense. We spin the wheels up for a couple of seconds to gain energy before the ball is pushed into the wheel therefore it is a fly wheel.

mustangs2647 28-01-2016 10:31

Re: pic: FRC 2869 - 2016 Shooter
 
looks nice but what whats your method of loading it?

Monochron 28-01-2016 11:13

Re: pic: FRC 2869 - 2016 Shooter
 
Quote:

Originally Posted by notmattlythgoe (Post 1530480)
Yeah, I guess a heavy shooter wheel would be a flywheel in itself.

You guys might need some sleep. I can't see those wheels producing a useful amount of lift at all.

swaxman12345 28-01-2016 11:27

Re: pic: FRC 2869 - 2016 Shooter
 
Quote:

Originally Posted by hardcopi (Post 1530447)
Looks good, nice and clean... those wheels though... they look like they might rip the ball up.

They do.

notmattlythgoe 28-01-2016 11:54

Re: pic: FRC 2869 - 2016 Shooter
 
Quote:

Originally Posted by Monochron (Post 1531488)
You guys might need some sleep. I can't see those wheels producing a useful amount of lift at all.


Sperkowsky 28-01-2016 17:45

Quote:

Originally Posted by mustangs2647 (Post 1531464)
looks nice but what whats your method of loading it?

It's just a matter of reversing the motors and pitching it down.

Ginger Power 28-01-2016 17:55

Re: pic: FRC 2869 - 2016 Shooter
 
Quote:

Originally Posted by swaxman12345 (Post 1531497)
They do.

Do you have pictures or anything to support this? I'd be interested in seeing what kind of damage of they caused, and what the application was that caused it.

Sperkowsky 28-01-2016 18:22

Re: pic: FRC 2869 - 2016 Shooter
 
Quote:

Originally Posted by Ginger Power (Post 1531690)
Do you have pictures or anything to support this? I'd be interested in seeing what kind of damage of they caused, and what the application was that caused it.

+1

Ben Wolsieffer 28-01-2016 19:23

Re: pic: FRC 2869 - 2016 Shooter
 
We did some prototyping with those wheels, and while they did scuff the ball, they didn't cause any major damage to our ball. It likely depends on the amount of compression you have.

Ginger Power 28-01-2016 20:00

Re: pic: FRC 2869 - 2016 Shooter
 
Quote:

Originally Posted by lopsided98 (Post 1531720)
We did some prototyping with those wheels, and while they did scuff the ball, they didn't cause any major damage to our ball. It likely depends on the amount of compression you have.

We had the same result in the process of testing, but we got it to a point where there was no sign that it was fired.

viggy96 29-01-2016 19:22

Re: pic: FRC 2869 - 2016 Shooter
 
What motors are you using there in the image?


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