View Single Post
  #10   Spotlight this post!  
Unread 29-03-2013, 17:21
Ether's Avatar
Ether Ether is offline
systems engineer (retired)
no team
 
Join Date: Nov 2009
Rookie Year: 1969
Location: US
Posts: 8,044
Ether has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond reputeEther has a reputation beyond repute
Re: Shooter Help for 2nd Year Team

Quote:
Originally Posted by Thorne View Post
Hello everyone!
I've got photos of the shooter in question... here:






We're using CIM Motors, with no gearboxes, I'm not sure about speed, all of our electrical is inaccessible, so we have the motors linked directly to a circuit breaker and battery.

Thanks!
Several thoughts come to mind:

1) In the world of shooting frisbees with spinning wheel(s), you reach a point where faster is not better. In fact, some teams have reported a *loss* of frisbee exit speed once the wheel(s) were spinning faster than some experimentally-determined optimum point. So, it's hard to "tune" your shooter if all you have is an on/off switch for the motor voltage.

2) I don't see anything preventing the frisbee from riding up the side of the fence (the guide rail opposite the wheels). If that is happening as the frisbee passes through, you won't get sufficient compression

3) The fence looks shiny and slippery. You want more friction on the fence so that the frisbee has to spin its way through the shooter. Without adequate spin, the frisbee won't go far.

4) The wheels are narrow compared to the chute height. There's nothing preventing the frisbee from climbing up over the exposed part of the wheel.




Last edited by Ether : 29-03-2013 at 17:24.