Small catapult for throwing balls

Requested Project

A light weight object such as a small ball may be thrown with this device.  The ball is placed on the catapult arm and the device is cocked.  A person who cannot throw a ball can throw the ball by pressing the trigger button or pulling a string attached to the trigger lever.  An electrical actuator may also been attached to the string so that a switch is used to throw the ball.

Design Notes

Two sizes of the ball thrower have been built.  The larger one is suitable for use on a wheelchair tray.

Caution:  This device can be potentially very dangerous and must be used under proper supervision.

RCRV designer is Lester Haerther, and was requested by GWAEA. The project was begun Sep 28, 2001 and completed Sep 28, 2001.

Small ball thrower

Large ball thrower


Additional Information:

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Construction drawings for small ball thrower
Construction drawings for large ball thrower

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