Introduction
Welcome to the world of JEKCA! This instruction manual provides detailed guidance for assembling your JEKCA Cat 12S-M01 Calico Cat model. JEKCA building blocks utilize a unique interlocking technology to create sturdy, glue-free sculptures. Please read these instructions carefully before beginning assembly.
Package Contents:
- JEKCA building blocks (approximately 1460 pieces)
- Detailed step-by-step assembly manual
- Special interlocking brick-through system components
Safety Information
WARNING: CHOKING HAZARD - Small parts. Not for children under 3 years.
This product is recommended for individuals aged 14 years and above due to the complexity and small size of some components. Adult supervision is advised for younger builders.
Keep all packaging materials away from children and dispose of them properly.
Setup and Assembly
Follow the included step-by-step manual for detailed assembly instructions. The JEKCA system uses a unique interlocking mechanism to ensure stability without glue.

Figure 1: JEKCA Interlocking System. This image illustrates the core JEKCA interlocking mechanism. A screw is inserted through a brick, then turned 90 degrees to secure it to another brick, creating a sturdy connection. This method ensures the model remains stable without the need for adhesive.
- Unpack Components: Carefully open the package and sort the building blocks by color and shape if desired. Refer to the included parts list to ensure all pieces are present.
- Understand the Interlocking System: The JEKCA system uses a special screw-based interlocking mechanism. As shown in Figure 1, bricks are connected by inserting a small screw through designated holes and then rotating it 90 degrees to lock the pieces together. This creates a strong, stable bond.
- Follow the Manual: Refer to the dedicated step-by-step assembly manual provided in your package. Each step will guide you through adding specific bricks and securing them.
- Build Layer by Layer: Most JEKCA models are built layer by layer. Ensure each layer is securely interlocked before proceeding to the next.
- Check Connections: Periodically check that all connections are firm. If a piece feels loose, ensure the interlocking screw is properly rotated and seated.

Figure 2: Completed JEKCA Calico Cat Model. This image displays the fully assembled JEKCA Cat 12S-M01 Calico Cat model, showcasing its intricate design and sturdy construction. The model features a calico pattern with white, black, and orange blocks, and is depicted in a playful, standing pose with one paw raised.
Usage and Display
Once assembled, your JEKCA Calico Cat model is ready for display. Its sturdy construction allows it to stand freely on flat surfaces. Choose a prominent location to showcase your completed masterpiece.
This model is designed for static display and light handling. Avoid dropping or applying excessive force, as this may dislodge bricks.
Maintenance
To keep your JEKCA model looking its best:
- Cleaning: Gently dust the model with a soft, dry cloth or a soft brush. For more stubborn dirt, a slightly damp cloth can be used, but avoid excessive moisture.
- Storage: If disassembling for storage, keep all pieces organized to prevent loss. Store in a cool, dry place away from direct sunlight to prevent material degradation or color fading.
- Avoid Chemicals: Do not use harsh chemicals, abrasive cleaners, or solvents on the plastic blocks, as this can damage the material and finish.
Troubleshooting
- Problem: Model is not sturdy or pieces are loose.
- Solution: Ensure that all interlocking screws are fully inserted and rotated 90 degrees to secure the bricks. Re-check connections in the affected area. Refer to Figure 1 for the correct interlocking method.
- Problem: Missing pieces.
- Solution: Double-check the packaging and assembly area. If pieces are genuinely missing, contact JEKCA customer support with your model number and a description of the missing parts.
- Problem: Difficulty understanding assembly steps.
- Solution: Review the step-by-step manual carefully. Pay close attention to the orientation of the bricks and the direction of screw insertion. Online resources or community forums might also offer visual guides.
Specifications
| Feature | Detail |
|---|---|
| Model Name | Cat 12S-M01 |
| Model Number | ST19CA12-M01 |
| Brand | JEKCA |
| Material | Plastic (Acrylonitrile Butadiene Styrene) |
| Color | Calico (White, Black, Orange) |
| Number of Pieces | Approximately 1460 |
| Recommended Age | 14 years and up |
| Educational Objective | Concentration, Construction Skills |
| Product Dimensions (Approx.) | 47.5 x 10.6 x 27.9 cm (Length x Width x Height) |

Figure 3: Product Dimensions. This image provides a visual representation of the assembled JEKCA Calico Cat model's dimensions, indicating a length of 47.5 cm, a width of 10.6 cm, and a height of 27.9 cm.
Warranty and Support
For any questions, missing parts, or support inquiries regarding your JEKCA Cat 12S-M01 model, please contact JEKCA customer service. Refer to the contact information provided on the product packaging or the official JEKCA website.
Please retain your proof of purchase for any warranty claims.