Catapult

In ancient times the catapult was used to hurl objects at the enemy. This catapult is used to teach designed experiments or Taguchi Methods. The unit is produced for classroom use to allow students to conduct an experiment and determine the best combination of tilt, spring direction, draw back distance, ball position, and ball type for overcoming the enemy. The catapult experiment turns learning into fun. The unit has five factors, each of which can be varied over three levels. Hundreds have been sold to support Six Sigma and Design of Experiment Training.

Description
The catapult throws a variety of balls a distance across the classroom. The distance is the response variable in the experiment (total distance less than 100 inches). Students can vary a total of six factors, each at three levels, in conducting the experiment.

The factors are:

• Elevation is the ability to tilt the entire unit, much like you would a slide projector. There are three different elevation positions.
• Stationary Arm Position - There are three different places that you can attach the elastic rubber to the stationary up right.
• Pivot Arm Position - there are three locations to attach the elastic to the pivot arm, same as previous.
• Ball Seat Position - there are three different locations that you can place the ball for throwing on the pivot arm.
• Turn Table Position - these are the positive stops for pulling the pivot arm back to before release. As you rotate the round table it has three different pegs that basically establish how much tension you place on the elastic.
• Ball Type - three different balls, ping pong, wiffle, and semi-solid.

Item #: CAT100
Price:    $350.00