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Summary of Contents for Omtech USB350n
- Page 1 V20240625 USB350n Cabinet Laser Engraver User Manual For Commercial or Industrial Use Only Read Carefully Before Use Keep for Future Reference...
- Page 2 PREFACE Thank you for choosing our laser equipment. Your CO laser engraving machine is intended for commercial or industrial use. When used in accordance with these instructions, it comprises a Class 1 laser system but some components remain EXTREMELY dangerous. Never disable the preinstalled safety devices and always use your laser safely and responsibly.
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Page 3: Table Of Contents
CONTENTS 1. Introduction ................................1 1.1 General Information ............................1 1.2 Symbol Guide ..............................2 1.3 Designated Use ...............................2 1.4 Technical Specifications ..........................3 1.5 Components ..............................4 2. Safety Information ...............................10 2.1 Disclaimer ..............................10 2.2 General Safety ...............................10 2.3 Laser Safety ..............................11 2.4 Electrical Safety ............................12 2.5 Material Safety ..............................12 3. - Page 4 4.4.7 Resetting the Axes ..........................27 4.4.8 Adjusting the Laser Movement Mode ....................27 4.4.9 Adjusting the Laser Settings ........................27 4.4.10 Setting the Origin Points ........................28 4.4.11 Setting Default Parameters .........................28 4.4.12 Restoring Default Parameters ......................29 4.4.13 Setting the Interface Language ......................29 4.4.14 Setting the Machine’s IP Address ......................29 4.4.15 Diagnostic Tools ..........................30 4.4.16 Setting the Screen Reference ......................30...
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Page 5: Introduction
1. Introduction 1.1 General Information This manual is the designated user guide for the installation, setup, safe operation, and maintenance of your cabinet laser engraver. It is divided into six chapters covering general information, safety instructions, installation steps, operation instructions, maintenance procedures, and contact information. ALL personnel involved in the installation, setup, operation, maintenance, and repair of this machine should read and understand this manual, particularly its safety instructions. -
Page 6: Symbol Guide
1.2 Symbol Guide The following symbols are used on this machine’s labelling or in this manual: These items present a risk of serious property damage or personal injury. These items address similarly serious concerns with regard to the laser beam. These items address similarly serious concerns with regard to electrical components. -
Page 7: Technical Specifications
1.4 Technical Specifications Model USB350n Diameter 50 mm 1.97 in. Laser Tube Length 880 mm 34.6 in. Diameter 18 mm 0.71 in. Focus Lens Thickness 2 mm 0.08 in. Focal Length 50.8 mm 2 in. Diameter 25 mm 0.98 in. -
Page 8: Components
1.5 Components... -
Page 9: Main Parts
Main Parts A. Cover—The cover provides access to the main bay for placing and retrieving materials, as well as fixing the laser path alignment and other maintenance. Power to the laser is automatically cut when the cover is opened. B. Viewing Window—The polycarbonate window is shielded to protect you and others from the laser and its reflection, allowing monitoring of the engraving process. -
Page 10: Laser Head
Laser Path A. Laser Tube—This CO₂-filled glass tube is mounted on brackets and immobile. Its connection to the laser power supply is extremely high voltage and extremely dangerous. B. 1st Mirror—This adjustable-angle mirror is fixed in place to transfer the engraving laser from the tube to the 2nd mirror. - Page 11 H. Control Power Supply—This device powers the machine's control panel. I. Reserved Wire Harness—This wire harness is reserved for autofocus control module, which does not come with this engraver but is available at OMTech. Laser Power Supply A. High-Voltage Wire—This line is connected to the laser tube’s anode or positive end, providing high-voltage current to power the laser.
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Page 12: Control Console
Control Console Returns the machine to the saved default Sets the starting point for the laser head. parameters. Stops work or returns to a previous Starts or pauses the work. menu. Enters a command or confirms your Manually fires the laser. selections. -
Page 13: Console Screen
Console Screen A. Graphic Display Area: Shows the whole file’s track and the running track. B. Version Number: Displays the version numbers of the panel and motherboard. C. System Time: Displays the current system time. D. Parameter Display Area: Displays the running file’s file number, speed, max power, etc. E. -
Page 14: Safety Information
2. Safety Information 2.1 Disclaimer Your engraver may differ somewhat from those shown in this manual due to options, updates, etc. Please contact us if your engraving machine came with an outdated manual or if you have any other questions. 2.2 General Safety Instructions •... -
Page 15: Laser Safety
2.3 Laser Safety Instructions When used as instructed, this machine comprises a Class 1 laser system safe for users and bystanders. However the invisible engraving laser, the laser tube, and its electrical connections remain EXTREMELY dangerous. Used or modified without care, they can cause serious property damage and personal injury including but not limited to the following: •... -
Page 16: Electrical Safety
2.4 Electrical Safety Instructions • ONLY use this device with a compatible and stable power supply with less than 5% fluctuation in its voltage. • DO NOT connect other devices to the same fuse, as the laser system will require its full amperage. Do not use with standard extension cords or power strips. - Page 17 This machine can be safely used with the following materials: Plastics • Acrylonitrile Butadiene Styrene (ABS) • Nylon (Polyamide, PA, etc.) • Polyethylene (PE) • High-Density Polyethylene (HDPE, PEHD, etc.) • Biaxially-Oriented Polyethylene Terephthalate (BoPET, Mylar, Polyester, etc.) • Polyethylene Terephthalate Glycol (PETG, PET-G, etc.) •...
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Page 18: Installation
3. Installation 3.1 Installation Overview A complete working system consists of the laser engraving cabinet, its vent, a water tank (not included) with a pump (included), all applicable connection cables, and the laser and access keys. The cabinet can use designs provided by the enclosed engraving software by direct or internet connection with your computer;... -
Page 19: Electrical Grounding
Step 3. CAREFULLY remove the rest of the foam packaging material from around the laser tube, the viewing window, and the rest of the machine. The laser tube is a highly fragile object and should be handled delicately and as little as possible. Step 4. -
Page 20: Water Cooling Installation
3.5 Water Cooling Installation The provided water pump is essential to your engraver's performance and longevity. When this laser works without a properly maintained cooling system, its glass tube WILL explode from excess heat. NEVER touch or adjust your engraver's water supply while the pump is connected to power. To install your pump, fill a dedicated tank with at least 7.5 litres (1.6 gal.) of distilled water. -
Page 21: Exhaust System
3.6 Exhaust System This engraver doesn’t come with an inbuilt exhaust fan. Follow the steps to set an exhaust system before use. 1. Connect the provided exhaust pipe to the port of the laser engraver, and the other end to your exhaust fan. Expand the pipe if longer is needed. -
Page 22: Initial Testing
3.9 Initial Testing Emergency Shutoff Because of the risk of fire and other hazards during engraving, this engraver includes a large and easy-to-reach emergency stop button near the control panel. Press it down to stop the laser tube instantly. When your engraver arrives, its e-stop is already pressed. Release the e-stop and press the reset button to allow the laser to function. -
Page 23: Air Assist
Water Shutoff Because of the danger posed by an uncooled laser tube, this engraver also shuts off the laser automatically when the water cooling system malfunctions. After ensuring that the emergency stop button and cover protection both work, you should also test that the water shutoff works properly before conducting any other work on your machine. -
Page 24: Operation
4. Operation 4.1 Operation Overview Operate this laser marking machine only in accordance with all the instructions provided in this manual. Failure to follow the proper guidelines detailed here can result in property damage and personal injury. This section will address only some of the options and features provided by the operation software. Before beginning to use the machine, make sure that you have read this entire manual (particularly the Safety Information above), the separate software manual, and any and all warnings provided on the machine itself. -
Page 25: Instructions For Specific Materials
Power 100% Current (mA) The threshold for the lowest setting is 10%. The laser will not fire at any setting lower than this. It is NOT recommended to use the laser tube at full capacity, especially for extended periods. The recommended maximum power setting is 70%, as prolonged use above that amount will shorten your laser's service life. - Page 26 Ceramics When engraving on ceramics, generally use moderate to high power. Using more loops rather than higher power and lower speed can help avoid cracking the material during work. Be mindful of the health risk posed by dust generated from ceramic engraving, especially for repetitive industrial applications. Depending on the material and the amount of work, a fan or even full ventilation system may be required to address the problem.
- Page 27 same problem, so medium to low resolution designs should be preferred for most plastics. Thickness of Acrylic Description 1.5 mm 3 mm 6 mm 12 mm Speed 20 mm/s 9 mm/s 4 mm/s 2 mm/s Power Rubber The various compositions and densities of rubber cause slightly varying engraving depth. Testing various settings on sample pieces of your specific rubber is highly recommended for best results.
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Page 28: Control Console
4.4 Control Console Instructions 4.4.1 Overview You can control your engraver directly from the built-in control panel, through a direct connection with your computer, or over the internet. For details on operating your engraving software, see its separate manual. The built-in control panel can operate the laser manually or engrave designs loaded onto flash drives and external hard drives connected to the USB port on the right side of the cabinet. -
Page 29: Setting The Laser Power
4.4.2 Setting the Laser Power When you press ENT in the main interface, the cursor box will initially select the “Speed” parameter, as shown in the figure below: Push the ▲ and ▼ keys to change between the parameters. Select the “Power” parameter, as shown below: Press ENT while the red cursor is on “Power”... -
Page 30: Function Menu
Press ENT key again and the following interface pops up. Push the ▲ and ▼ keys to change the parameter value. Press ENT to save the change. Press ESC to invalidate the change and return to the main interface. 4.4.4 Function Menu Press MENU on the main interface to enter the Menu interface: Push the ▲... -
Page 31: Resetting The Axes
4.4.7 Resetting the Axes When Axis Reset+ is selected, push ENT and the display will show: Push ▲ or ▼ to select an item. Press ENT to start the resetting of the selected axis, and the message “Resetting Is Underway” will show on the screen. Upon completion, the message will automatically disappear and the system will return to the main interface. -
Page 32: Setting The Origin Points
4.4.10 Setting the Origin Points When Origin Set is selected, press ENT and the following dialogue box will pop up: Press FN to select an item. When Multi-Origin Enable is selected, press ENT to enable or disable the item. When enabled, the small box will be red and, when disabled, the small box will be grey. -
Page 33: Restoring Default Parameters
4.4.12 Restoring Default Parameters When Def. Fact. Para. is selected, the system will replace all current parameters with the saved default factory parameters. The operation method is the same as setting the default parameters. 4.4.13 Setting the Interface Language When Language is selected, press ENT and the display will show: The operation method is the same as those described above. -
Page 34: Diagnostic Tools
4.4.15 Diagnostic Tools When Diagnoses is selected, the following dialogue box will pop up: This interface displays the system’s hardware I/O port information: INPUT: Reads the system’s hardware information. When the hardware signal is triggered, the small box to the left of the corresponding entry will be displayed in red. -
Page 35: Adjusting Engraving Layers
4.4.17 Adjusting Engraving Layers When the system is idle or the work is finished, press ENT to enter the layer parameter section. Push ▲ or ▼ to select the intended layer. Press ENT to check the selected layer's parameters as shown below: The red cursor will be on “Layer”... -
Page 36: Setting The Blow Parameters
4.4.20 Setting the Blow Parameters In the Para Setting submenu, select Blow Setting to display the following interface: Select and adjust the parameters by pushing the arrows. When you finish your adjustments, move the cursor to Write and press ENT to save the parameter change or ESC to exit without saving. Read can load saved parameters. 4.4.21 Adjusting Reset Speeds In the Para Setting submenu, select Speed Setting to display the following interface: Select and adjust the parameters by pushing the arrows. -
Page 37: Adjusting Rotary Axis Parameters
4.4.23 Adjusting Rotary Axis Parameters In the Para Setting submenu, select Rotate Function Setting to display the following interface: Select and adjust the parameters by pushing the arrows. When you finish your adjustments, move the cursor to Write and press ENT to save the parameter change or ESC to exit without saving. Read can load saved parameters. 4.4.24 Setting an Interface Password When the cursor is on Panel Lock, press ENT, and the following dialogue box will pop up: Push the ▲... -
Page 38: Setting The Machine's Date And Time
4.4.26 Setting the Machine’s Date and Time In the Controller Setup submenu, select Time Setting+ to display the following interface: Select and adjust the parameters by pushing the arrows. When you finish your adjustments, move the cursor to Write and press ENT to save the parameter change or ESC to exit without saving. Read can load saved parameters. 4.4.27 Authorisation Management and Keyboard Layout Your engraver should arrive already authorised and ready to go. -
Page 39: Maintenance
5. Maintenance 5.1 Maintenance Overview The use of procedures other than those specified herein may result in hazardous laser radiation exposure. Before any cleaning or maintenance work, always switch off the device and disconnect it from its power supply. Always keep the system clean, as flammable debris in the working and exhaust areas constitutes a fire hazard. ONLY allow trained and skilled professionals to modify or disassemble this device. -
Page 40: Main Bay & Engraver
If you use an industrial water chiller instead of the provided pump, follow its separate instructions for maintenance but similarly ensure that the water used remains cool, clean, and pure. 5.3.2 Cleaning the Main Bay and Engraver Check at least once a day whether dust has accumulated in the main engraving bay. If so, it must be removed. The exact cleaning interval and requirements strongly depend on the material being processed and the operating time of the device. - Page 41 4. Remove the pressurised air hose and laser guide connections. 5. Once positioned over your clean lens-cleaning tissue, remove the lens from the lens holder by carefully turning the lens holder and letting the lens and its O-ring drop onto the cleaning cloth. 6.
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Page 42: Mirrors
5.3.4 Cleaning the Mirrors The mirrors should be similarly cleaned if there is any debris or haze on their surface to improve performance and avoid permanent damage. The 1st mirror is located in the back left of the machine beyond the far end of the Y axis. The end of the laser tube closest to this mirror is itself a semitransparent mirror that should be checked at the same time. -
Page 43: Laser Tube
5.4.1 Red Dot Locator Alignment To test the alignment of the laser tube with the 1st mirror, cut out a piece of tape and place it on the mirror's frame. DO NOT place the tape directly onto the mirror. Turn on the machine and set the power level to 15% or lower. Press PULSE to manually fire the laser. -
Page 44: First Mirror
5.4.2 1st Mirror Alignment After ensuring the laser is well aligned between the laser tube and 1st mirror, check the alignment between the 1st and 2nd mirrors. First, use the direction arrows on the control panel to send the 2nd mirror to the back of the bed along the Y axis. -
Page 45: Second Mirror
5.4.3 2nd Mirror Alignment After ensuring the laser is well aligned between the 1st and 2nd mirrors, check the alignment between the 2nd and 3rd mirrors. Repeat the steps and adjustments above, taking care to use the tape on the mirror's frame and not its surface. -
Page 46: Parts Replacement
QR code to the right. Come join the OMTech community at our official laser group on Facebook or visit the company forums at omtechlaser.com! Check our YouTube channel for helpful hints and instructional videos.
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