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Longshot
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Longshot was a very good robot built for Overdrive.
- Year Built In: 2008
- Competition Built For: FIRST Robotics Competition
Mechanical
The overall mechanics of Longshot were very simple.
Forks
The forks were the device(s) in front of the robot that were initially just a square frame of 80/20 to go under the ball and eventually lift it up and into the robot for firing. Later the forks were redesigned using bent 3/4" tubing that were better fit to accept the ball easier. On the edges of the forks were two VEX sensor buttons that were used to detect the ball. The programming behind it was that the forks would not move up to move the ball into the launcher until the ball had settled (i.e. pushing both buttons).
Launcher
The launcher was the device used to launch the trackball into the air. It was very simple composed of a square frame of 80/20 that was attached using bearing blocks to the front end of the robot to pivot. On the far end that swung was attached surgical tubing that led up to the top of the robot to lauch the ball forward (effectively usign elastic potential energy). The launcher was brought down by using rope, a axle, two electromagnetic couplings "clutches", and a window motor.