Thread: 1726 Prototype Testing
View Single Post
  #13   Spotlight this post!  
Unread 27-01-2008, 00:02
Matt H. Matt H. is offline
Long Distance Mentor
FRC #1726 (N.E.R.D.S.)
Team Role: Alumni
  
Join Date: May 2006
Rookie Year: 2007
Location: Sierra Vista, AZ
Posts: 238
Matt H. has a reputation beyond reputeMatt H. has a reputation beyond reputeMatt H. has a reputation beyond reputeMatt H. has a reputation beyond reputeMatt H. has a reputation beyond reputeMatt H. has a reputation beyond reputeMatt H. has a reputation beyond reputeMatt H. has a reputation beyond reputeMatt H. has a reputation beyond reputeMatt H. has a reputation beyond reputeMatt H. has a reputation beyond repute
Re: 1726 Prototype Testing
We hold the cylinders at 3in by using the weight of the ball combined with the piece (not yet built) which holds down the ball. Because of the geometry of the catapult it takes very little force to hold it down, but increases exponentially when released.

We are trying to cut down air usage and have been somewhat successful. Almost all of our cylinders are now single action instead of double action. By doing this we have cut air consumption for one shot from about 115-70 to 115-90 psi drop on four tanks (about 15 sec recharge time). If we start with the tanks precharged we should be able to get through a match without too much trouble.

On a side note does anyone know if it's possible to design a pressure readout display for the OI. I think that would be immensely helpful this year.