Assemble it with your own hands and find out how a curvimeter works. The model comes with a QR-code that will forward you to the learning guide about the mechanism, the principal of its working, the main characteristics, formulas, and interesting assignments. Dive into augmented reality and look at how the curvimeter works. Interact with the model via a special AR application from Ugears. The Curvimeter is used to measure the length of curved lines on topographic maps, charts, schemes, and plans. It is a common tool for map-makers, tourists, and road services.