1. Introduction
The Twotrees MPG Electronic Handwheel is a precision motion control system designed for CNC engraving machines. It features a 100PPR encoder, offering manual pulse generation for accurate control of XYZ axes. This device is engineered for seamless integration with compatible Twotrees CNC routers, providing both quantitative and stepless speed adjustment for enhanced carving precision.
2. Warnings & Safety Information
2.1 Fire and Burn Hazard
- High temperatures generated during processing may ignite the workpiece, smoke, or surrounding materials.
- The processing area must be kept clear of flammable substances and equipped with fire extinguishing equipment.
- After processing, the workpiece and machine components (e.g., spindle, laser head) may remain hot for an extended period; verify full cooling before handling.
2.2 Mechanical Injury Hazard
- High-speed rotating spindles, moving gantries, belts, and lead screws pose serious risks of crushing, cutting, or entanglement injuries.
- Before performing any installation, commissioning, cleaning, or maintenance operation, disconnect the machine from the main power supply.
2.3 Electrical Hazard
- High-voltage circuits are present internally. Unauthorized personnel must not open the electrical control cabinet.
- All electrical connections must comply with local regulations and be performed by qualified electricians.
2.4 Hazardous Substances and Fumes
- Processing certain materials (e.g., plastics, composites, coated metals) may generate toxic, carcinogenic, or irritating fumes and dust.
- Use only in environments equipped with an effective Local Exhaust Ventilation (LEV) system.
3. Setup
3.1 Compatibility
The TTC-MPG Electronic Handwheel is specifically optimized and perfectly compatible with the following Twotrees CNC engraving machines:
- TTC450 Pro
- TTC450 Ultra
- TTC-H40 series
- TTC-H80 series
3.2 Installation Method
This accessory is designed for plug-and-play operation, requiring no drivers. It connects directly to the control board of your compatible CNC machine.
- Preparation: Confirm compatibility of the accessory model. Ensure the workspace is clean and well-ventilated.
- Power Disconnection: Shut down the host machine and unplug it from the main power source. Wait until all components—especially the laser source and spindle motor—are fully cooled.
- Removal of Old Component (if applicable): Refer to the original manufacturer's manual for your CNC machine; record wiring connections and mechanical positioning, then carefully remove the component to be replaced.
- Installation of New Component: Insert the handwheel's connector into the designated port on your CNC machine's control interface. Ensure all mechanical connections are securely tightened and all electrical connections are correct, properly polarized, and firmly secured.
4. Operating Instructions
4.1 Control Panel Overview
The handwheel features an intuitive control panel for precise axis and speed adjustments.
| Mark | Description |
|---|---|
| OFF | MPG OFF |
| X | Select operation X axis |
| Y | Select operation Y axis |
| Z | Select operation Z axis |
| 4 | Select operation 4 axis |
| X1 | Low speed |
| X10 | Medium speed |
| X100 | High speed |
4.2 Dual-Mode Speed Control
The handwheel offers both quantitative three-speed control and stepless speed adjustment for versatile operation.
- Three-speed Quantitative Control: Use the X1, X10, X100 switch to select low, medium, or high speed increments.
- Stepless Speed Adjustment: Rotate the main handwheel dial to achieve fine, stepless speed control, allowing for precise manual adjustments during carving.
4.3 Precision Control
The handwheel enables manual precision control of the XYZ axes, simplifying tool setting and fine adjustments for intricate carving tasks.
4.4 Calibration
After installation, recalibrate the relevant systems (e.g., laser power, tool length, engraving area) as specified in your CNC machine's original manufacturer's manual.
4.5 Testing
Conduct a low-power/low-speed no-load test under safe conditions to verify smooth operation, absence of abnormal noise, and absence of alarms before resuming normal use.
4.6 Product Demonstration Video
5. Maintenance
- Keep the handwheel clean and free from dust and debris.
- Regularly check all connections to ensure they are secure.
- Store the device in a dry, non-corrosive environment when not in use.
- Before any cleaning or maintenance, always disconnect the handwheel from the CNC machine and ensure the machine is powered off and cooled down.
6. Troubleshooting
- No Response: Ensure the handwheel is correctly connected to the CNC machine's control interface and the machine is powered on. Check for any loose cables.
- Abnormal Noise/Operation: Disconnect the handwheel and re-connect. If the issue persists, refer to your CNC machine's manual for troubleshooting its control system.
- Inaccurate Movement: Re-calibrate the relevant systems (e.g., tool length, engraving area) as per your CNC machine's manual.
7. Specifications
| Feature | Specification |
|---|---|
| Model Number | TTC-MPG |
| Brand Name | TWO TREES |
| Item Type | Hardware Parts / Machine Parts |
| Encoder | 100PPR |
| Control Method | Manual Pulse Generator (MPG) |
| Assembly Required | No (Plug & Play) |
| Dimensions (L x W x H) | Approx. 129mm x 72mm x 56.8mm |
| Weight | 0.5kg |
| Operating Temperature | 0°C to 40°C |
| Storage Temperature | -10°C to 50°C |
| Ingress Protection Rating | IP20 (dust-protected, no water protection) |
| Environmental Conditions | Indoor use only. Do not use in damp, dusty, corrosive-gas, or explosive environments. |
8. User Tips
- For optimal precision, use the X1 setting for very fine adjustments, especially during tool setting or intricate detail work.
- Ensure the handwheel cable is not tangled or under tension during operation to prevent accidental disconnections or damage.
- Utilize the magnetic attachment on the back of the handwheel to secure it to a metal surface near your workspace for easy access and stability.
9. Warranty & Support
9.1 Manufacturer Information
Brand: TWOTREES
Manufacturer Name: Shenzhen Two Trees Technology Co., Ltd.
Address: 402, Building 11, No. 9, Qilin Road, Nankeng Community, Sakata Street, Longgang District, Shenzhen City, Guangdong Province, Mainland China
EU Responsible Person Information:
Name: AMZ ECREP SL
Address: Calle Gran Via 49, 7 Deb. Spain
9.2 Disclaimer
By using this product, the user acknowledges and agrees to the following terms:
- The manufacturer and seller shall not be liable for any direct or indirect damages resulting from:
- Failure to operate, maintain, or store the device in accordance with this manual and all accompanying safety guidelines.
- Unauthorized modification of the device, or use of non-OEM or incompatible accessories or software.
- Use of the device outside its intended purpose, or processing of prohibited or unknown materials.
- Installation, commissioning, or repair performed by personnel not authorized or trained by the manufacturer.
- Damage caused by force majeure or unforeseen events such as fire, flood, lightning strike, or abnormal voltage.
- Normal wear and tear (e.g., natural power decay of the laser module over time).
9.3 Additional Resources
A detailed user manual in PDF format is available for download. Please refer to the official product page or contact customer support for the link to the PDF manual: View User Manual (PDF)