Introduction
This manual provides detailed instructions for assembling and operating your Sitodier Rotatable Solar System Building Toy. This 758-piece set allows for the construction of a dynamic model simulating the rotation of eight planets around the sun, driven by a gear mechanism. It is designed to offer an engaging building experience and serve as an educational tool for understanding planetary motion and basic engineering principles.
Safety Information
WARNING: Not suitable for children under 6 years due to small parts which may present a choking hazard. Adult supervision is recommended during assembly and play.
Package Contents
Please verify that all components are present before beginning assembly.
- 758 Building Block Pieces
- Instruction Manual
Assembly Instructions
Follow the step-by-step diagrams provided in the included instruction booklet. Each step illustrates the placement of specific blocks to construct the base, gear mechanism, central sun, and individual planets.
Key Assembly Points:
- Begin by constructing the base unit, ensuring all foundational blocks are securely connected.
- Carefully assemble the internal gear linkage system. Precise alignment of gears is crucial for the rotatable function.
- Attach the central column and the sun model. The sun model includes a built-in light feature.
- Assemble each of the eight planet models and attach them to their respective arms, ensuring they are positioned to rotate around the sun.
- The final step involves attaching the manual rotation handle to the gear mechanism.

Image: The fully assembled Sitodier Rotatable Solar System Building Toy, showcasing the sun, eight planets, and a separate space shuttle model. The product box is visible in the background.

Image: A detailed view of the assembled solar system model, highlighting the sun, planets, and the intricate gear system that enables rotation.
Operating Instructions
Once assembled, the solar system model can be operated manually.
- Locate the rotation handle on the side of the base unit.
- Gently turn the handle in a clockwise or counter-clockwise direction. This action engages the internal gear mechanism.
- Observe as the eight planets rotate around the central sun, simulating their orbital paths.
- The sun model features a built-in light. Ensure proper battery installation (if applicable, refer to the assembly guide for details) for illumination.

Image: A close-up view of the sun model, illustrating its built-in light feature.

Image: A close-up of the mechanical transmission handle on the side of the base, used to activate the planetary rotation.

Image: A close-up view of the internal gear linkage mechanism, demonstrating how the gears connect to drive the planetary movement.
Educational Value
This building toy serves as an interactive educational tool.
- Space Exploration: Provides a tangible model to visualize the solar system and the relative positions of eight planets.
- Astronomy: Helps in understanding planetary orbits and the concept of a central sun.
- Engineering Principles: Demonstrates the practical application of gear mechanisms and mechanical transmission.
- Problem-Solving: The assembly process encourages logical thinking, spatial reasoning, and attention to detail.

Image: A child engaging with the assembled solar system model, illustrating its use as a learning tool for space exploration.
Maintenance
To ensure the longevity of your building toy:
- Keep the model clean by gently wiping with a dry, soft cloth.
- Avoid exposure to direct sunlight or extreme temperatures to prevent material degradation.
- Store in a dust-free environment when not in use.
- Periodically check for any loose connections and re-secure blocks as needed.
Troubleshooting
If you encounter issues during assembly or operation:
- Difficulty in Assembly: Refer to the instruction manual's diagrams carefully. Ensure each piece is oriented correctly and fully pressed into place. Some steps may require firm pressure.
- Planets Not Rotating Smoothly: Check the gear linkage system for any misaligned or improperly connected gears. Ensure no foreign objects are obstructing the mechanism.
- Missing Pieces: In the rare event of missing components, please contact Sitodier customer support with your product model number and a description of the missing parts.
Specifications
- Model Number: 7135
- Number of Pieces: 758
- Product Dimensions: 9.25 x 9.25 x 8.66 inches (23.5 x 23.5 x 22 cm)
- Item Weight: 1.61 pounds (0.73 kg)
- Recommended Age: 6 years and up
- Material: ABS Plastic (typical for building blocks)





