1. Introduction
This instruction manual provides detailed guidance for the assembly, operation, and maintenance of your ROKR 3D Wooden Ballista Launcher Model Kit. This kit is designed to offer an engaging and educational building experience, culminating in a functional mechanical model.

Figure 1: Fully assembled ROKR 3D Wooden Ballista Launcher Model Kit.
2. Safety Information
- Choking Hazard: Small parts are included. Not suitable for children under 3 years.
- Projectile Safety: The ballista launches projectiles. DO NOT AIM AT FACE OR EYES. Always ensure a clear and safe firing area.
- Material Handling: Wooden pieces may have sharp edges or splinters. Handle with care during assembly. Sandpaper is provided to smooth edges if necessary.
- Storage: Keep the product away from sources of ignition and do not soak it in water.
3. Package Contents
Verify that all components listed below are present in your kit before beginning assembly.

Figure 2: Overview of the kit's contents, including wooden sheets, manual, and accessories.
- Pre-cut wooden sheets (multiple boards)
- Rubber bands
- Sandpaper
- Instruction Manual
- 3 Wooden Projectiles
4. Assembly Instructions
Follow the step-by-step diagrams and instructions provided in the included manual. The assembly process involves connecting pieces using a tenon and mortise structure. Precise laser-cut pieces are designed for a snug fit.
- Read the Instruction Manual: Familiarize yourself with the entire assembly process before starting.
- Identify Parts: Carefully pop out the pre-cut parts from the wooden sheets. Each part is typically labeled in the manual for easy identification.
- Assemble Components: Follow the numbered steps in the manual to connect parts. Pay close attention to the orientation and fit of each piece. Some smaller parts may require gentle force or the use of the provided tool to fit correctly.
- Lubrication (Optional): For smoother operation of moving parts, a small amount of wax (not always included, common household wax can be used) can be applied to connecting points as indicated in the manual.

Figure 3: Visual guide for initial assembly steps, including reading instructions, taking out parts, and assembling.

Figure 4: Close-up of hands assembling the wooden puzzle pieces.
Assembly Video Guide
Video 1: An official ROKR video demonstrating the assembly process of the 3D Wooden Ballista Launcher Model Kit.
5. Operating Instructions
Once assembled, your ROKR Ballista Launcher is ready for operation. Ensure you are in a safe environment before firing.
- Adjusting Angle: Turn the lifting gears on the side to adjust the launch angle between 90° and 135°.
- Rotating Turret: The base features a 360° rotatable turret, allowing you to aim in any direction.
- Loading Projectile: Place one of the wooden projectiles into the firing mechanism.
- Firing: Pull back the firing trigger mechanism and release to launch the projectile. Projectiles can travel up to 10 feet.

Figure 5: Key operational features: Firing Trigger, Ratchet Lifting Mechanism, and Rotatable Turret.
Operation Video Guide
Video 2: An official ROKR video demonstrating the mechanical operation of the ballista, including loading and firing.
6. Maintenance
- Cleaning: Use a clean and soft fabric to clean the product. Do not use corrosive solvents such as alcohol, ammonium hydroxide, or other harsh cleaning agents.
- Smoothing Edges: If any part edges become rough over time, polish them with sandpaper.
- Storage: Store the model in a dry environment, away from direct sunlight and extreme temperatures, to prevent warping or damage to the wood.
7. Troubleshooting
- Parts Not Fitting: Ensure you are using the correct parts for each step. Refer to the manual's diagrams and part labels. Gentle sanding with the provided sandpaper can help if a fit is too tight.
- Fragile Parts: Some wooden details can be delicate. If a part breaks, check for spare pieces in the kit. The design often allows for some flexibility in reassembly if a minor mistake occurs.
- Mechanism Not Smooth: Apply a small amount of wax to the gears and moving joints to reduce friction and improve operation.
- Weak Launch: Ensure the rubber bands are correctly installed and taut. Additional rubber bands can be added for increased power if desired.
8. Specifications
| Feature | Detail |
|---|---|
| Product Dimensions | 11.9 x 9 x 0.01 inches (assembled size approximately 11.9 x 9 x 6.5 inches) |
| Item Weight | 1.17 pounds |
| Recommended Age | 14 years and up |
| Number of Pieces | 142 (Self-Assemble) |
| Material | High-quality wood (plywood) |
| Launch Range | Up to 10 feet |
| Adjustable Angle | 90° - 135° |
| Turret Rotation | 360° |

Figure 6: Visual representation of the assembled model's dimensions.
9. Warranty & Support
For any questions, missing parts, or support needs regarding your ROKR 3D Wooden Ballista Launcher Model Kit, please contact ROKR customer service at service@robotime.com. Please provide your model number and a detailed description of your inquiry for efficient assistance.





