1. Introduction
The Robotime Rokr Gravity Swing Series offers engaging 3D wooden puzzle kits designed around the principles of center-of-gravity balance. Each model, once assembled, features a base, a support structure, and a swinging component that creates a mesmerizing kinetic motion with a gentle tap. These kits provide a rewarding building experience and serve as unique decorative pieces.
This manual provides detailed instructions for assembly, operation, and maintenance of your Gravity Swing model.
2. Safety Information
- Age Recommendation: Recommended for ages 14 and up.
- Small Parts Warning: This kit contains small parts. Keep out of reach of children under 3 years old to prevent choking hazards.
- Material: Made from wood. Handle with care to avoid splinters.
- Assembly Tools: No electric tools are required. Use only the tools provided or recommended in the instructions.
- Environment: Assemble in a well-lit, clean, and dry area.
WARNING: CHOKING HAZARD - Small parts. Not for children under 3 years.
3. Package Contents
Each kit typically includes:
- Pre-cut wooden sheets with puzzle pieces.
- Assembly instructions manual.
- Necessary accessories (e.g., metal rods, sandpaper, glue if required, though often not needed for ROKR models).
Verify all parts are present before beginning assembly. Refer to the specific model's parts diagram in the included instruction booklet.

4. Assembly Instructions
The Gravity Swing models are DIY wooden puzzle kits. Follow the step-by-step instructions provided in your specific model's manual. General steps include:
- **Unpack and Organize:** Carefully unbox all components. Identify the wooden sheets and the instruction booklet.
- **Identify Pieces:** Match the pieces on the wooden sheets with the diagrams in the instruction manual. Gently press out the pieces. If a piece is difficult to remove, use a craft knife or sandpaper to carefully loosen it.
- **Sand Edges (Optional):** Some pieces may have rough edges. Use fine-grit sandpaper (often included) to smooth them for a better fit and finish.
- **Follow Numbered Steps:** The instruction manual will guide you through the assembly process with numbered steps and diagrams. Pay close attention to the orientation of each piece.
- **Mortise & Tenon Technique:** Many ROKR models use a mortise and tenon joint system, which allows for glue-free assembly. Ensure pieces fit snugly. If a joint is too tight, gently sand it. If too loose, a small amount of wood glue (not usually included, but can be used for extra stability) can be applied.
- **Assemble the Base:** Typically, the base is assembled first, providing a stable foundation for the rest of the model.
- **Assemble the Support Structure:** Attach the metal rods or wooden supports to the base as per the instructions.
- **Assemble the Swinging Component:** Construct the main model (e.g., airplane, boat, Santa figure) and attach it to the support structure.
- **Install the Gravity Pendulum:** Attach the pendulum (often marked with 'R') to the designated point, ensuring it can swing freely.


5. Operating Instructions
The Gravity Swing models operate on kinetic motion and do not require batteries.
- **Placement:** Place the assembled model on a flat, stable surface.
- **Initiate Swing:** Gently tap the gravity pendulum (the 'R' marked component) to start the swinging motion.
- **Observe Motion:** The model will then swing back and forth, demonstrating dynamic balance.


Video: Demonstration of the Gravity Swing models in action, showing the kinetic motion of the Sky Captain and Ocean Fisher models.
6. Care and Maintenance
- **Cleaning:** Dust the model regularly with a soft, dry cloth. Avoid using wet cloths or cleaning agents, as they may damage the wood or paint.
- **Storage:** Store the model in a dry place away from direct sunlight and extreme temperature changes to prevent warping or fading of the wood.
- **Handling:** Handle the model gently, especially the swinging components, to avoid accidental breakage.
- **Loose Parts:** If any parts become loose over time, re-secure them gently. For mortise and tenon joints, a small amount of wood glue can be used if necessary.
7. Troubleshooting
- **Model does not swing smoothly:**
- Check if the model is placed on a perfectly flat and stable surface.
- Ensure all connections, especially the metal rod to the base and the swinging component, are secure and not obstructed.
- Verify that the gravity pendulum is attached correctly and can move freely without rubbing against other parts.
- Inspect for any misaligned or stuck pieces that might be creating friction.
- **Pieces do not fit together:**
- Refer to the instruction manual diagrams to ensure you are using the correct pieces and attempting to connect them in the right orientation.
- Gently sand the edges of the pieces if they are too tight. Do not force pieces, as this can cause breakage.
- **Model is unstable:**
- Ensure the base is fully and correctly assembled.
- Check that the support rods are firmly inserted into the base.
- Confirm that the model is on a level surface.
8. Specifications
| Feature | Detail |
|---|---|
| Brand Name | Robotime |
| Material | Wood |
| Is Electric | No (Kinetic motion, no batteries needed) |
| Gender | Unisex |
| Recommend Age | 14+ years |
| Origin | Mainland China |
| High-concerned chemical | None |
Model Specifics:
| Model Name | Model No. | Pieces | Assembled Size (L*W*H) | Package Size (L*W*H) |
|---|---|---|---|---|
| Sky Captain | MCD01 | 163PCS | 145 x 170 x 315 mm | 229 x 154 x 45 mm |
| Ocean Fisher | MCD02 | 161PCS | 185 x 175 x 335 mm | 229 x 154 x 45 mm |
| Road Tripper | MCD03 | 228PCS | 160 x 95 x 375 mm | 229 x 154 x 45 mm |
| Deep-sea Adventurer | MCD04 | 219PCS | 140 x 95 x 365 mm | 229 x 154 x 45 mm |
| Santa on Sleigh | MCD05 | Not specified in data | Not specified in data | Not specified in data |
| Santa on Skis | MCD06 | 186PCS | 145 x 170 x 315 mm | 229 x 154 x 45 mm |



9. User Tips
- **Patience is Key:** Take your time during assembly. Rushing can lead to broken pieces or incorrect connections.
- **Use the Diagrams:** Always refer to the detailed diagrams in the instruction manual. They are crucial for correct piece orientation and placement.
- **Gentle Force:** Apply gentle, even pressure when fitting pieces. If a piece doesn't fit, re-check the instructions or gently sand the edges rather than forcing it.
- **Organize Pieces:** Before starting, organize the pieces by number or type to make the assembly process smoother.
- **Enjoy the Process:** These kits are designed for enjoyment. Embrace the challenge and satisfaction of building something with your own hands.
10. Warranty and Support
For any missing parts, damaged components, or assembly assistance, please contact the seller or manufacturer directly. Keep your purchase receipt as proof of purchase.
Robotime Online Store provides customer support for their products. Refer to the contact information provided with your product packaging or on the seller's platform for assistance.