😲😲This tourbillon DIY model accurately reproduces the core structure of the spring and gears. ✨✨From scattered parts to assembly, you can immerse yourself in the wonder of mechanical engagement and intuitively understand the principle of the tourbillon to offset gravity and calibrate the travel time. Hold the charm of precision machinery in your palms and play with your fingertips!❤️❤️ | Moderobot.com

Want to build a mechanical heart with your own hands? Three-axis tourbillon gear model ✅ 3D transmission, multi-axis linkage is super shocking ✅ From parts to finished products, unlock the mechanical code with your own hands ✅ Become a god after assembling! Desktop C-position technology ornaments physics class teaching aids Twist the gears, clamp the shaft rods, and watch the colorful gear sets rotate like a galaxy. | Moderobot.com