Geared motor for extra power.

Uses a worm drive for low gearing.

Experiment with different weights for varied acceleration..

Basic robust model.

Lift arm demonstrates pulleys.

Chunky wheels and stylish design.

Rocker switch to isolate the battery.

Levers activate the gripping hand/pincer mechanism,.

Simple effective design, results can be altered by using different bands.

This simple arch bridge has amazing strength.

Includes a control box to activate the motion..

Uses a worm drive for low gearing.