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Usage: 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.. o Assemble it and discover the principle of working of the Curvimeter. o Experiment: the model comes with a Pocket Model’s Study Guide with a creation story and mechanism design as well as engaging and interesting tasks. o Immerse yourself in Augmented Reality (AR), find out how the curvimeter is used, and interact with it via the dedicated Ugears application. The mechanism of the Curvimeter is composed of: Measuring wheel with main and additional scales, and a hand. Planetary mechanism. Cycloidal drive. Self-assembly from the parts, pulled out from wooden boards, according to easy-to-follow manual instruction. No glue or cutting needed Model Size: 4.5 x 3.3 x 6.6 in Package size: 8.1 x 7.4 x 2.5 in Number of parts: 109 Level: Easy Assembly Time: 2 hours Recommended Age: 8+ Kit weight: 0.9 lbs Manufacturer: UGears