DOJBK Three Axis Tourbillon Model, 3d Printed Pet Mechanical Escapement Movement With Hand-wound Motion, Visible Gears And Pre-assembled Pet Structure For Stem Education And Desk Decor

DOJBK

【Three-Axis Mechanical Motion】The 3D printed model recreates a rotating three-axis tourbillon-style mechanism with visible escapement and interlocking gears, providing a clear demonstration of mechanical transmission principles. 【Hand-Wound Gear Operation】Turn the winding key clockwise and gently move the starting gear to activate the mechanism, allowing the gear train, balance structure, and rotating frames to move together without batteries. 【Pre-Assembled Display Model】The tourbillon mechanical model arrives assembled and ready for operation, eliminating complex customer assembly while making the internal gear structure easy to view from multiple angles. 【3D Printed PET Construction】Made from durable PET material with individually printed multi-color components, the model retains the characteristic layer texture of 3D printing and provides a lightweight desktop display structure. 【STEM Learning and Desk Decor】Suitable for demonstrating escapement movement, gear transmission, and three-axis rotation in engineering or physics discussions, while also serving as a mechanical ornament for desks, shelves, and offices.