OMTech USB7B47 OMTCA
OMTech 70W CO2 Laser Engraver and Cutter User Manual
Model: USB7B47 OMTCA
1. Úvod
Thank you for choosing the OMTech 70W CO2 Laser Engraver and Cutter. This manual provides essential information for the safe and efficient operation, setup, and maintenance of your new laser machine. Please read this manual thoroughly before operating the device to ensure proper usage and to prevent damage or injury.
This laser engraver is designed for precision engraving and cutting of various materials, featuring a 400x750 mm (16x30 inch) workbed, autofocus capability, and Ruida controls. It is compatible with LightBurn software and supports Windows, Mac OSX, and Linux operating systems, making it suitable for a wide range of home DIY and professional applications.

Figure 1.1: The OMTech 70W CO2 Laser Engraver and Cutter, showcasing its design and the LightBurn software logo.
2. Bezpečnostní informace
Operating a laser engraver involves inherent risks. Adhere to all safety guidelines to prevent injury or damage to the equipment. This device is a Laser Class 2 product with 0.827 mW output power.
2.1 Obecná bezpečnostní opatření
- Always wear appropriate laser safety glasses when the laser is in operation.
- Ensure proper ventilation to remove fumes and smoke generated during engraving/cutting.
- Nikdy nenechávejte stroj během provozu bez dozoru.
- Mějte po ruce hasicí přístroj a naučte se ho používat.
- Negravírujte ani neřežte materiály, které produkují toxické výpary nebo jsou vysoce hořlavé.
- Ujistěte se, že je stroj řádně uzemněn.
- Udržujte ruce a volný oděv mimo pohyblivé části.
- Před prováděním jakékoli údržby nebo čištění odpojte napájení.
2.2 Nouzové zastavení
Locate the emergency stop button on the control panel. In case of any emergency, press this button immediately to halt all machine operations.
3. Konec produktuview & Komponenty
The OMTech 70W CO2 Laser Engraver is equipped with several key features for optimal performance and user convenience.

Figure 3.1: Key features of the OMTech 70W CO2 Laser Engraver, including engraving area, laser tube power, autofocus, and auto-lift platform.
3.1 Hlavní součásti
- 70W CO2 laserová trubice: The core component for engraving and cutting.
- Systém automatického ostření: Automatically adjusts the laser focus for different material thicknesses.
- Electric Lift Workbed: Allows for easy adjustment of the working distance.
- Ruida Control Panel: Intuitive interface for machine operation and settings.
- 16" x 30" (400x750 mm) Engraving Area: Poskytuje ampprostor pro různé projekty.
- Debris Collection System: Helps manage waste materials.
- 4-Way Pass-Through Doors: Enables processing of larger materials.
- Transparent Acrylic Glass Cover: Pro jistotu viewing of the engraving process.

Figure 3.2: Visual breakdown of the OMTech laser engraver's key components, including the work bed, debris collection, laser tube, control panel, autofocus, and pass-through.
4. Průvodce nastavením
Follow these steps for the initial setup of your OMTech laser engraver.
4.1 Vybalení a umístění
- Carefully remove the machine from its packaging. It is recommended to have at least two people for this process due to the machine's weight (approximately 114 kg).
- Umístěte gravírku na stabilní, rovný povrch v dobře větraném prostoru, mimo dosah hořlavých materiálů.
- Ensure there is sufficient space around the machine for operation and maintenance, especially for the 4-way pass-through doors.
4.2 Připojení periferních zařízení
- Connect the exhaust fan system to the machine and vent it outdoors or to a suitable filtration system.
- Connect the water chiller (not included, but essential for laser tube cooling) to the laser tube's inlet and outlet ports. Ensure the chiller is filled with distilled water.
- Connect the power cable to a grounded electrical outlet.
- Connect the machine to your computer via USB or Ethernet cable.
5. Návod k obsluze
This section details the basic operation of your laser engraver.
5.1 Zapnutí a úvodní kontroly
- Ensure the water chiller is running and circulating water through the laser tube.
- Zapněte hlavní vypínač na stroji.
- The Ruida control panel will power on.

Figure 5.1: The Ruida Digital Control Panel, showing its display and various function buttons.
5.2 Loading Material and Focusing
- Place your material onto the workbed.
- Use the electric lift workbed controls on the Ruida panel to adjust the bed height.
- Utilize the autofocus function by pressing the dedicated button on the control panel. The machine will automatically adjust the laser head to the correct focal distance for your material.

Obrázek 5.2: Detail view of the autofocus mechanism, which automatically corrects focus at the touch of a button.
5.3 Starting a Job
- Prepare your design in LightBurn or other compatible software (see Section 6).
- Send the job to the laser engraver.
- On the Ruida panel, select the job and press "Start" or "Run/Pause".
- Pečlivě sledujte proces gravírování/řezání.
6. Software & Connectivity
Your OMTech laser engraver is designed for seamless integration with various software platforms.
6.1 Compatible Systems
The machine is compatible with:
- operační systémy Windows
- Mac OSX operating systems
- Operační systémy Linux

Figure 6.1: Visual representation of the laser engraver's compatibility with Windows, Linux, and Mac OS.
6.2 Doporučený software
- LightBurn: Highly recommended software for laser engraving and cutting, offering powerful design and control features.
- RDWorks: Included software for Windows users.
- CorelLaser: Included software for Windows users, compatible with CorelDRAW.
- Software třetích stran: Compatible with other software like AutoCAD.
For detailed instructions on software installation and usage, please refer to the respective software manuals or online resources.
7. Údržba a péče
Pravidelná údržba zajišťuje dlouhou životnost a optimální výkon vašeho laserového gravírovacího stroje.
7.1 Denní údržba
- Clean the workbed and debris collection system after each use.
- Inspect the laser lens and mirrors for dust or debris. Clean gently with a lens cleaning solution and cotton swab if necessary.
- Check the water level and temperature in the chiller.
7.2 Týdenní/měsíční údržba
- Clean and lubricate the guide rails and bearings to ensure smooth movement of the laser head.
- Inspect the laser tube for any signs of damage or degradation.
- Replace the water in the chiller with fresh distilled water.

Figure 7.1: Close-up of the 70W CO2 laser tube, which produces stable beams over its long service life.
8. Řešení problémů
Tato část se zabývá běžnými problémy, se kterými se můžete setkat, a jejich možnými řešeními.
| Problém | Možná příčina | Řešení |
|---|---|---|
| Laser nestřílí | No water flow from chiller, chiller error, laser tube issue, power supply issue. | Check chiller connection and water level. Verify laser power supply. Contact support if tube is faulty. |
| Špatná kvalita gravírování/řezání | Incorrect focus, dirty lens/mirrors, wrong power/speed settings, material issues. | Perform autofocus. Clean optics. Adjust power/speed settings in software. Ensure material is suitable. |
| Stroj se nepřipojuje k počítači | Loose USB/Ethernet cable, driver issues, software settings. | Check cable connections. Reinstall drivers. Verify software communication settings. |
| Workbed not moving | Motor issue, control panel issue, obstruction. | Check for obstructions. Restart machine. If problem persists, contact support. |
9. Technické specifikace
| Specifikace | Detail |
|---|---|
| Číslo modelu | USB7B47 OMTCA |
| Typ laseru | CO2 laser |
| Výkon laseru | 70W |
| Laserová třída | Class 2 (0.827 mW output power) |
| Oblast gravírování | 400 x 750 mm (16 x 30 palců) |
| Workbed Type | Electric Lift Workbed (Dual Honeycomb & Knife Blade Platforms) |
| Řídicí systém | Ruida Controls |
| Kompatibilní software | LightBurn, RDWorks, CorelLaser, AutoCAD |
| Kompatibilní OS | Windows, Mac OS X, Linux |
| Rozměry produktu | 125.98 x 91.95 x 87.12 cm (49.6 x 36.2 x 34.3 palce) |
| Hmotnost položky | 113.99 kg (251.3 lb) |
| Materiál | LCD (likely referring to the control panel display) |

Figure 9.1: The spacious 16" x 30" engraving area, providing over 3.3 square feet for projects.
10. Záruka a podpora
For warranty information and technical support, please refer to the official OMTech website or contact their customer service directly. Keep your purchase receipt and model number (USB7B47 OMTCA) handy for any inquiries.
You can visit the OMTech Store for more information: OMTech Official Store