UGears Geneva Drive Dynamometer Wooden Kit The Intriguing Mini Geneva Drive Some of you might have guessed it – this item is named after the city of its invention. The Geneva Drive is a popular device in the world of mechanics, and was originally used to manufacture clocks. One of its slots would be blanked off, so the winder could be turned a certain number times – it prevented springs from being wound too tight. It works using the same principle of a pneumatic engine where you blow into a special socket or create heat via an ordinary air balloon and the heat powers the device. The model is self-propelled and requires no electricity during operation, which also ups the safety factor when children are using it. The Geneva Drive incorporates a playful element in its design – simply blow on the top gear and watch the entire system come set in motion via the air pressure. The arrow points to a funny picture that symbolizes a task or chore that you can complete according to your strength or force applied. It works as per the concept of intermittent motion that is used frequently film projectors to move the film on one frame at a time, then hold it stationary as the bright projector light is shined through it. The quirky images can transform this item into a décor element in your home or at office to add some color to your workstation. All parts are constructed using high quality and environment-friendly plywood that is available in pre-cut form. Just read the instructions and connect them to each other as directed in the manual. The Geneva Drive – Dynamometer, perhaps ranks on top as one of the fastest models for assembly under the UGEARS label. It is an ideal way to express how mechanics work using the cascading of gears and mechanical junction called the Geneva Drive. Buy it now and we promise you will have a superb time while building it. Ready to order this incredible item? Material: plywood. Model for self-assembly without glue. Model Size: 5.8 x 28 x 6.7 in (147 x 713 x 169 mm). Number of parts: 48.