1. Introducció
This manual provides essential information for the safe and effective operation of your OMTech 50W CO2 Laser Engraver. This machine is designed for precision engraving and cutting on a variety of non-metallic materials, including wood, glass, acrylic, and leather. Please read this manual thoroughly before operation to ensure proper setup, usage, and maintenance.

Figure 1.1: OMTech 50W CO2 Laser Engraver (Model SH-G350)
2. Informació de seguretat
Operating a laser engraver involves inherent risks. Adhere strictly to all safety guidelines to prevent injury or damage to the machine. This product is a Class 2 laser with 0.827mW output power.
- Protecció ocular: Never look directly into the laser beam. Always wear appropriate laser safety glasses.
- Ventilació: Ensure adequate ventilation to remove smoke and fumes produced during engraving and cutting. The built-in air assist helps, but external ventilation is crucial.
- Compatibilitat de materials: Only engrave or cut materials specified as safe for CO2 lasers. Avoid materials that produce toxic fumes or are highly flammable.
- Perill d'incendi: Always supervise the machine during operation. Keep a fire extinguisher nearby.
- Parada d'emergència: Familiaritzeu-vos amb la ubicació i el funcionament del botó d'aturada d'emergència.
- Sistema d'enclavament: The machine features a cover interlock that automatically cuts the laser beam if the lid is opened during operation. Do not bypass this safety feature.
3. Què s'inclou
Your OMTech 50W CO2 Laser Engraver package typically includes:
- OMTech 50W CO2 Laser Engraver Machine
- Honeycomb Bed (12"x20" work area)
- Aluminum Blade Bed (12"x20" work area)
- Water Pump for cooling
- Sistema d'assistència aèria
- Cable d'alimentació
- Cable USB
- Exhaust Fan and Ducting
- Software (LightBurn compatible)

Figure 3.1: Dual Engraving Beds (Honeycomb and Aluminum Blade Bed)
4. Configuració
Follow these steps for initial setup of your laser engraver:
- Desembalatge i col·locació: Carefully remove the machine from its packaging. Place it on a stable, level surface in a well-ventilated area.
- Connexió del sistema d'escapament: Connect the provided exhaust fan and ducting to the machine's exhaust port to vent fumes outdoors.
- Sistema de refrigeració per aigua: Connect the water pump to the laser tube's inlet and outlet ports. Ensure the water reservoir is filled with distilled water and the pump is submerged.
- Connexió d'assistència aèria: Connect the air assist hose to the laser head.
- Connexió d'alimentació i USB: Connect the power cable to a grounded outlet and the USB cable to your computer.
- Instal·lació de programari: Install the LightBurn software on your computer. Refer to the LightBurn documentation for detailed installation and configuration instructions.

Figure 4.1: Two-Way Pass-Through Doors for larger materials
5. Instruccions de funcionament
Operating your OMTech laser engraver involves preparing your design, setting parameters, and initiating the engraving/cutting process.
- Càrrega de material: Place your material onto the honeycomb or blade bed. Ensure it lies flat for consistent results. The two-way pass-through doors allow for larger items.
- Manual Focus Workbed: Adjust the workbed height to achieve the perfect focal distance for your material. This is crucial for engraving quality.
- Design Preparation (LightBurn): Import or create your design in LightBurn. Adjust size, position, and assign layers for engraving or cutting.
- Paràmetres de configuració: For engraving, adjust speed (up to 23.6 ips / 600 mm/s) and power settings based on material type and desired depth. For cutting, set appropriate speed and power to achieve a clean cut.
- Iniciar el procés: Send the job to the laser engraver from LightBurn. Monitor the process closely.

Figure 5.1: Manual Focus Workbed

Figura 5.2: Panell de control digital
5.1. Laser Engraving Photos on Wood
This video demonstrates how to achieve high-quality photo-realistic engravings on wood using your CO2 laser engraver, including tips for material preparation and software settings.
Video 5.1.1: How to laser engrave a photo with a CO2 Laser Engraver
5.2. Laser Engraving and Cutting on Acrylic Mirror
Learn the basics of engraving and cutting acrylic mirror, including material handling, software settings, and post-processing for a clean finish.
Video 5.2.1: Laser Engraving and Cutting on Acrylic Mirror - DIY Project
5.3. OMTech Laser Engraver Overview
Un breu sobreview of the OMTech laser engraver's capabilities and benefits for various users.
Video 5.3.1: OMTech Laser Engraver for Most People
5.4. Insights from Laser Guys
Hear from OMTech partners, the 'Laser Guys', on their experience with OMTech lasers, business growth, and advice for choosing the right laser for your needs.
Video 5.4.1: Laser Guys from OMTech
6. Manteniment
Un manteniment regular garanteix la longevitat i el rendiment òptim del vostre gravador làser.
- Lens and Mirror Cleaning: Regularly clean the laser lens and mirrors with specialized lens cleaning solution and cotton swabs to maintain beam quality.
- Workbed Cleaning: Remove debris and residue from the honeycomb and blade beds after each use.
- Sistema de refrigeració per aigua: Periodically check the water level and quality in the cooling system. Replace water as needed to prevent algae growth and ensure efficient cooling of the laser tube.
- Filtre d'assistència d'aire: Clean or replace the air assist filter to ensure proper airflow and prevent smoke buildup.
- Laser Tube Lifespan: The high-performance DC tube delivers 50W of power for up to 1,000 hours of usage and doubles its lifespan when consistently used at lower settings.
7. Solució De Problemes
Problemes comuns i les seves possibles solucions:
- Sense sortida làser: Check power connections, water flow, and ensure the lid interlock is engaged. Verify laser tube integrity.
- Mala qualitat de gravat/tall: Adjust focus, speed, and power settings. Clean the lens and mirrors. Ensure material is flat.
- La màquina no respon: Check USB connection, software status, and machine power. Restart both the machine and computer.
- Excés de fum/fums: Verify exhaust fan operation and ducting integrity. Ensure proper ventilation to the outside.
8. Especificacions
| Dimensions del producte | 40.9 x 26.8 x 19.3 polzades |
| Número de model de l'article | SH-G350 |
| Pes de l'article | 138.9 lliures |
| Màx. Velocitat de gravat | 600 mm/s (23.6 ips) |
| Àrea de Processament | 12 x 20 polzades (300 x 500 mm) |
| Classe làser | Class 2, 0.827 mW output power |
| Transmissió de dades | USB Cable, Ethernet Cable, USB Flash Drive, Offline |
9. Garantia i Suport
OMTech products typically come with a manufacturer's warranty. Please refer to the warranty card included with your product or visit the official OMTech website for detailed warranty terms and conditions. For technical support, troubleshooting assistance, or parts inquiries, contact OMTech customer service directly.





