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Unread 17-02-2014, 21:43
stefanp stefanp is offline
Registered User
AKA: Stefan Pleava
FRC #4946 (The Alpha Dogs)
Team Role: Alumni
 
Join Date: Oct 2013
Rookie Year: 2014
Location: Canada
Posts: 17
stefanp will become famous soon enough
Re: Rookie Team 4946 Shooter (Wheel material)

Quote:
Originally Posted by xForceDee View Post
That looks like an awesome shooter! Great job guys! It was one design I initially had doubts about after hearing about teams popping balls. I guess I was wrong. To the OP or any team with a similar design, what steps or considerations were taken to mitigate or completely remove this problem? I notice the tread material, but what else? How much compression do the wheels put on the ball? What RPM? ETC... I am curious how some teams achieve these results while others just destroy the game piece.
We figured out that we only rip the ball if we let the wheels touch the ball before we are firing so I made a metal bracket that prevents the wheels from touching the ball unless we are firing. The material on the wheels is also important but I don't think as critical. We compress the ball about 2 inchs I believe, and the rpm for 18ft is 1750. We can shoot at 30+ft if we increase the speed of our shooter. A lot of our energy comes from our wheels weight which gets converted into momentum while requiring less speed. (p=mv)
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