View Single Post
  #7   Spotlight this post!  
Unread 14-01-2010, 18:27
Pneumaticsman's Avatar
Pneumaticsman Pneumaticsman is offline
Registered User
AKA: Mitch guzman
FRC #1566 (Ammoknights)
Team Role: Programmer
 
Join Date: Dec 2007
Rookie Year: 2007
Location: Idaho
Posts: 69
Pneumaticsman will become famous soon enoughPneumaticsman will become famous soon enough
Send a message via MSN to Pneumaticsman
Re: small scale winch

Quote:
Originally Posted by Shawyan View Post
We are thinking about using that idea. One problem we have already encountered (and are having extreme difficulty fixing) is the rule that you can only leave the robot for 2 seconds to hit the ball and back. That is the 3" outside the frame perimeter and before the end of the bumper.

The reason for this being, if it does not leave the frame perimeter, there is NO way to get enough force to lift the ball (which is one of the main advantages for kicking).

We must be thinking of a different idea. We are using tension on some surgical tubing to pull our kicking mechanism back. the winch cable will keep the tension and release it. In order to get lift without extending past the bumper, we are putting a "foot" on the end of our rod. we plan on having a worm gear that will lower and raise the kicking mechanism to get different heights. Then we will have a rubber stopper slightly past the contact point to absorb the force and keep the motor from being harmed. If you still can't see what we're talking about, I can upload a picture of our wooden prototype.
The prototype we build lobbed the ball (height of above 12") for about 12-15 feet. We only used about 80N of force to do this
__________________


be prepared for the unexpected