Introduction
The Comgrow ROBO CNC Router 3018 Kit is a versatile 3-axis engraving and milling machine designed for precision work on various materials including plastic, acrylic, PCB, PVC, and wood. This manual provides comprehensive instructions for assembly, operation, maintenance, and troubleshooting to ensure optimal performance and longevity of your device.
Figure 1: Comgrow ROBO CNC Router 3018 Kit
Product Features
- Effective Engraving Area: 300x180x45mm (11.8x7.1x1.8 inches)
- GRBL Control: Standard control software for CNC operations.
- Versatile Material Compatibility: Engraves and mills plastic, acrylic, PCB, PVC, wood, and certain metals like aluminum and copper.
- Pre-assembled Kit: Designed for quick and easy assembly.
- Sturdy Construction: Aluminum frame ensures stability and precision.
- Z-Probe: For automatic tool height setting.
- Offline Controller: Allows operation without a PC connection.
Figure 2: Multi-function Introduction - Highlighting Emergency Stop, Open Source board, Limit Switch, and Z Probe.
Figure 3: Key Components - 775 Spindle Motor, 42 Stepper Motors, Accurate Lead Screw Drive, Safe Barrier, Anti-slip Rubber Pad, Emergency Stop, Z-Probe, and Offline Controller.
Figure 4: Product Dimensions - 460mm (18.1") length, 350mm (13.8") width, 370mm (14.6") height. Working area: 300mm (11.8") x 180mm (7.1") x 45mm (1.8").
Setup
1. Assembly
The Comgrow ROBO CNC Router comes as a pre-assembled kit. Follow the steps below to complete the assembly:
- Attach the X-axis gantry to the base using the provided screws.
- Install the X-axis baffles on both sides using M5 X12 screws.
- Install the back baffle using M5 X12 screws.
- Install the four anti-slip rubber feet.
Figure 5: Visual guide for the 6 modular assembly steps.
2. Connecting Components
Ensure all cables are securely connected before powering on the machine.
- Connect the X-axis, Y-axis, and Z-axis motor cables to their respective ports on the motherboard.
- Connect the limit switches for each axis.
- Connect the spindle motor wires.
- Connect the main power adapter.
3. Optional: Laser Module Installation
If you plan to use the laser engraving function, install the 5W laser module as follows:
- Insert the clip into the front of the Z-axis.
- Slide the laser module into the clip.
- Connect the laser power cable and PWM wire to the corresponding ports on the laser module's main board. Ensure correct polarity (Laser to Laser, PWM to PWM).
Figure 6: Attaching the laser module to the Z-axis.
Ensure the two terminal plugs for the laser module are connected correctly and not in reverse.
Video 1: How to assembly ROBO CNC Router and 5W laser Module? (Duration: 3:48). This video demonstrates the step-by-step process of attaching the 5W laser module to the CNC router.
Operating Instructions
1. Software Installation and Setup
The Comgrow ROBO CNC Router supports various software for design, slicing, and control. Refer to the compatibility table below:
Figure 7: Software Compatibility - Lists supported systems (Windows, Mac), machine modes (CNC router, Laser engraving), slicing software (ArtCAM, Fusion360, Carveco Maker, Vectric, Easel, LaserGRBL, Lightburn), and control software (Candle).
For CNC router mode, generate G-code using slicing software, then import it into the control software (e.g., Candle) to start engraving.
Video 2: How to Use ROBO CNC Router Engraving Wood Slices by GRBL? (Duration: 5:20). This video demonstrates the full workflow from material setup to engraving using GRBL control software.
Video 3: A Brief Introduction to Candle Software (Duration: 1:51). This video provides an overview of the Candle software interface and basic functionalities.
2. Using the Z-Probe
The Z-Probe allows for automatic tool height setting, ensuring precise engraving depth.
- Connect the Z-probe to the Z-probe interface on the machine.
- Place the Z-probe block on the workpiece.
- Attach the alligator clip to the spindle bit.
- In the control software (e.g., Candle), set the parameter of the Z-probe (e.g., G21G91G38.2Z-50F80;G92Z19.24;G0Z10, where 19.24 is the measured height of your Z-probe).
- Click the Z-Probe instruction to start tool setting.
Video 4: How to use the CNC Touch Plate on CNC Router? (Duration: 0:49). This video demonstrates the process of using the Z-probe for automatic tool height calibration.
3. Offline Control Module
The offline control module allows you to operate the CNC router without a computer connection.
- Insert the SD card with your G-code file into the mainboard card slot of the offline control handle.
- Plug the offline controller into the offline joystick interface on the motherboard.
- Select the desired file from the controller to start running.
Figure 8: Offline Controller - Provides direct control without a PC.
Video 5: How to use the ROBO CNC Router Offline Module Control? (Duration: 0:15). This video demonstrates connecting and using the offline control module.
4. Engraving and Milling
Prepare your material and G-code file, then initiate the engraving process.
Figure 9: Four Holders - Securely clamp your workpiece for stable engraving.
Figure 10: Engraving Examples - Showcase of various designs and materials.
Video 6: How to engrave aluminum plate by ROBO CNC Router (Duration: 0:26). This video demonstrates engraving on an aluminum plate.
Video 7: How to engrave pine wood panels by ROBO CNC Router (Duration: 0:20). This video demonstrates engraving on pine wood panels.
Video 8: How to engrave on Acrylic by ROBO CNC ENDMILL ENGRAVER? (Duration: 0:26). This video demonstrates engraving on an acrylic sheet.
Video 9: How to engrave copper by ROBO CNC Router (Duration: 0:17). This video demonstrates engraving on a copper plate.
Maintenance
Regular maintenance ensures the longevity and optimal performance of your CNC router.
- Keep the machine clean from dust and debris, especially around the lead screws and guide rails.
- Periodically lubricate moving parts as recommended by the manufacturer.
- Check and tighten all screws and connections regularly.
- Ensure proper ventilation during operation to prevent overheating.
Spindle Motor Upgrade
For enhanced performance, the spindle motor can be upgraded to a 300W or 500W version. Follow the instructions in the video for safe replacement.
Figure 11: Spindle Motor - Available for upgrade to 300W/500W.
Video 10: Comgrow CNC Router Upgrade with 300W/500W Spindle Motor (Duration: 4:25). This video guides you through the process of upgrading the spindle motor.
Troubleshooting
- Machine not responding: Check all power connections and USB cable. Ensure the correct COM port is selected in the software.
- Engraving not precise: Verify Z-probe calibration. Ensure workpiece is securely clamped. Check for loose screws on axes.
- Spindle/Laser not activating: Check wiring connections. Verify software settings for spindle speed/laser power.
- Software connection issues: Reinstall drivers if necessary. Try a different USB port or cable.
Specifications
| Feature | Specification |
|---|---|
| Brand | Comgrow |
| Item Weight | 19.96 pounds |
| Package Dimensions | 20.5 x 13.25 x 11 inches |
| Manufacturer | Comgrow |
| ASIN | B09B6PVX6M |
| First Available | March 28, 2022 |
Safety Information
Always prioritize safety when operating the CNC router. Wear appropriate personal protective equipment (PPE).
- Wear safety goggles to protect your eyes from debris.
- When using the laser module, always wear laser safety glasses.
- Ensure the emergency stop button is easily accessible.
- Do not touch moving parts during operation.
Figure 12: Essential Safety Gear.
Warranty and Support
For any issues or support, please refer to the official Comgrow store or contact customer service. The product comes with standard manufacturer warranty as per Amazon's terms and conditions.
Official User Guide (PDF): Download PDF
Comgrow Store: Visit Store