Thread: Ball posession: Roller (ball magnet) or vacuum?
View Single Post
  #12   Spotlight this post!  
Unread 15-03-2010, 17:20
Bruceb's Avatar
Bruceb Bruceb is offline
Registered User
FRC #0706 (Cyberhawks)
Team Role: Mentor
  
Join Date: Jan 2008
Rookie Year: 2004
Location: Merton, wi
Posts: 607
Bruceb is a splendid one to beholdBruceb is a splendid one to beholdBruceb is a splendid one to beholdBruceb is a splendid one to beholdBruceb is a splendid one to beholdBruceb is a splendid one to beholdBruceb is a splendid one to behold
Re: Ball posession: Roller (ball magnet) or vacuum?
As robself said earlier we use both a ball magnet and a sucker. The sucker is 2 shopvac impellers stacked back to back so that the output of the first feeds the input of the second. They are powered by 2 FP motors geared UP 2 to 1. Impeller rpm is about 19,000. Way much suck. We can move anywhere as fast as Robbie can drive and not loose the ball. We have the vac arangement at the back of the bot and the toilet plunger that sucks the ball at the front connected by 1.5 in. pvc with a wye in it. At the wye we have a small piston that holds a flat chunk of rubber over the hole. about 5 ms before we shoot we pull the piston and dump all the vacuum so we kick straight. This is VERY effective. We were the high scoring first zone bot at the Wisconsin regional and ended on the 2nd place alliance.
Bruce