Mechanical Advantage Demonstration Crane

cults3d

A Versatile Variable Geometry Crane That Teaches Mechanical Advantage to Kids in a Fun Way. I conceived this idea after participating in numerous STEM outreach events with the engineering firm where I used to work. You can check out a YouTube video that demonstrates its effectiveness here: https://youtu.be/-X3UobIKodg This crane is designed for use under adult supervision, as it is essential to prevent potential injuries from occurring. Two interchangeable winch handles are provided to allow users to experience the difference caused by varying diameters and turning moments. The gantry pin through which the string passes can be adjusted to three different heights or removed altogether to show how the geometry of the crane impacts mechanical advantage. To ensure stability, the crane must be screwed down onto a piece of wood. It has been tested with loads up to 1 kg. Use only string that is capable of supporting at least this weight. The hook should be printed horizontally to prevent print "grain" effects from weakening it. A ratchet mechanism is integrated into the winch to prevent it from unwinding and to provide a working demonstration of a mechanical system. This feature must also be used under adult supervision to prevent potential finger injuries. During construction, you will need to hammer the gantry and pivot into place on the platform while protecting the 3D printed components with pieces of wood. Hit the wood instead of the components to avoid damaging them. Please note that no responsibility is accepted for any loss or injury caused by this design. It is crucial to use common sense to prevent unfortunate incidents from occurring. Never place any part of your body under an unsupported load, as it can lead to serious injuries.