Stirling Engine Trolley Model Kit Precision construction and reliable materials Nearly all metal construction for durability and precise component fit. 55mm diameter alloy flywheel, finely polished and milled for smooth rotation. strength metal bottom plate for improved stability and consistent performance. temperature glass hot cylinder designed to withstand heat exposure. Piston and related components engineered for speed operation with low wear during long term use. Designed for handson assembly and learning This product is supplied as a spare part kit and requires DIY assembly. Complete set of spare parts with a straightforward structure to make assembly accessible. The Stirling engine is integrated with a trolley model so the assembled engine provides the driving power for the car. Key benefits Learn by doing: assembling the model develops manual skills and mechanical understanding. Observe thermodynamic principles in action by watching the engine cycle and vehicle movement. Durable materials and precise machining provide reliable operation and a satisfying mechanical experience. Compact and collectible: the finished model is suitable for display as a mechanical desk ornament or collector piece. Specifications and function Function: external combustion Stirling engine driving a trolley model. Flywheel: 55mm diameter alloy, polished and milled. Construction: primarily metal components, metal base plate. Cylinder: temperature glass hot cylinder. Performance: designed for stable operation and reduced wear under prolonged use. Typical use scenarios STEM education: classroom or home projects to demonstrate heat engine principles and basic mechanics. Hobby workshop: a practical project for model builders who enjoy mechanical assembly and fine metal parts. Display and collection: assembled model serves as a mechanical decoration and conversation piece. What you receive and assembly notes Complete set of spare parts needed to build the Stirling engine trolley model. Simple structure and clear mechanical relationships make it suitable for individual assembly. No specialized tools are included; basic hand tools are typically sufficient. Suitable recipients Ideal gift for hobbyists, model engineers, students learning physics, and collectors of mechanical models. This kit emphasizes durable metal construction, precise fit of components, and an educational handson experience that results in a working Stirling engine powered trolley.