Explore the fascinating world of gears with this mechanical educational kit featuring an epicyclic gear train, also known as planetary gears. Commonly used in speed reducers to slow motors and increase torque, this tabletop model is perfect for teaching students about mechanical principles, including the inner workings of pencil sharpeners. Designed as an engaging STEAM project, it offers a hands-on experience that fosters creativity and problem-solving. Made from eco-friendly plywood, the kit includes clear, colorful step-by-step instructions for easy self-assembly without messy glue. It comes with candle wax for gears, sandpaper, and rubber bands (included when relevant). With high-precision laser-cut parts and sturdy construction, this 3D STEM model ensures durability and intricate details for customization.Details:Natural woodPackage measures 9.7" x 4.6" x 8"Eco-friendly sustainable plywood materialVery high precision laser-cut piecesNo glue required, sturdy constructionFeatures epicyclic (planetary) gear trainIdeal for teaching mechanical principlesIncludes clear step-by-step instructionIncludes candle wax, sandpaper, and rubber bands (when relevant)Total 153 pieces puzzleRecommended for ages 14+ years