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Summary of Contents for Omtech USB3020B
- Page 1 V20221212 USB3020B Desktop Laser Engraver User Manual Read Carefully Before Use Keep for Future Reference...
- Page 2 PREFACE Thank you for choosing our laser equipment. Your CO₂ laser engraving machine is intended for personal and professional 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............................8 2.1 Disclaimer............................. 8 2.2 General Safety ............................8 2.3 Laser Safety............................9 2.4 Electrical Safety.......................... -
Page 4: Introduction
1 Introduction 1.1 General Information This manual is the designated user guide for installation, setup, safe operation, and maintenance of your desktop 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 5: Symbol Guide
1.2 Symbol Guide The following symbols are used on this machine’s labeling 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 6: Technical Specifications
1.4 Technical Specifications Model USB3020B Diameter 1.96 in. 50 mm Laser Tube Length 27.56 in. 700 mm Diameter 0.47 in. 12 mm Focal Lens Thickness 0.08 in. 2 mm Focal Length 2 in. 50.8 mm Diameter 0.79 in. 20 mm... -
Page 7: Components
1.5 Components... - Page 8 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—This acrylic window allows you to monitor the engraving process but only partially absorbs the high infrared laser and is NOT otherwise protected against it.
- Page 9 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 10 Control Panel A. Temperature Gauges—These show the temperature of the laser’s power supply and cooling water system in degrees Celsius (±3°C). Do not allow either reading to exceed 38°C. B. Ammeter—This shows the amount of current being used by the laser tube. C.
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Page 11: 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 12: 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 components 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 13: 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 standard extension cords or power strips. - Page 14 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 15: Installation
3. Installation 3.1 Installation Overview A complete working system consists of the laser engraving machine, its exhaust system, a water tank (not included) with a pump (included), and a USB cable connected to a control computer with the enclosed engraving software. Users can also configure other additional accessories to suit their needs. -
Page 16: Water Cooling System
3.4 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 its power supply. To install your pump, fill a dedicated tank with distilled water. -
Page 17: Exhaust System
3.5 Exhaust System Installation Install the provided exhaust pipe on the fan, as shown below. The pipe can be expanded to a full length of about 5 feet (1.5 m). The other end of the pipe should be connected to a dedicated purifier or (if the fumes are not harzardous and meet local and national air safety standards) placed out a window. -
Page 18: Main Power Connection
3.7 Main Power Connection Confirm that the labeling beside the connection socket on the machine matches your power supply. Connect one end of the main cable to the connection socket and the other end to a grounded outlet. Under NO circumstances should you switch on the device if the voltages do not correspond. -
Page 19: Control Computer Setup
3.9 Control Computer See your software manual for details on the requirements for the control computer. The control computer should be connected using the provided USB cable via the port marked "PC". If you choose to use your own USB cable, do not use one longer than 15 feet (4.5 m) to avoid possible interference on the line. - Page 20 The "Mainboard" and "Device ID" fields should match your machine. These numbers are located on the engraver’s motherboard. To check them, first turn off and unplug your engraver. Unscrew and open the control panel. The motherboard should be located along the front wall of this compartment. Find the device ID in the white box along one side of the board.
- Page 21 Correct these values in your software. Press Apply and then OK. Restart your software, close and refasten the control panel, and restore power to your machine.
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Page 22: 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 23 Pull the holding clamp towards you, place your material between it and its frame, and release the clamp to hold your material in place at the correct height. Be aware that using the deeper bed and clamp limits your engraver’s processing area to 8 inches by 5 inches (200×125 mm).
- Page 24 You can move your design to change its position relative to the origin. You can also click and drag the origin point to change the position of the laser head over your material. Finally, you can use the Refer command to quickly adjust your design to set positions around the current laser head position.
- Page 25 If you want your design to have a frame engraved around it, select the appropriate shape under Frame. Step 8. Customize our design’s contrast and engraving depth by adjusting the speed, power, and other parameters in your engraving software or directly through the control panel. Select whether you will be engraving, deeply cutting, or lightly marking your material.
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Page 26: Instructions For Specific Materials
Step 10. Once the laser has stopped, examine the quality of your first run and adjust the laser parameters on the control panel or in your software as necessary to create the desired effect. During repetitive engraving and cutting, periodically check your temperature gauges to maintain a water and power supply temperature below 100°F (38°C). - Page 27 4.3.4 Metal CO₂ laser engravers should not be used for marking, engraving, or cutting metal. They are best suited for working coatings applied to a metal base, and care must be taken not to attempt work on the underlying metal itself. A variety of coatings specialized for CO₂...
- Page 28 4.3.8 Stone When engraving various kinds of stone, generally use moderate power and moderate to fast speed. As with ceramics and glass, be mindful of the dust created (especially for repetitive industrial applications) and take similar measures to ensure the safety of users and others in the work area. 4.3.9 Textiles When engraving textiles like cloth and fleece, generally use low power and fast speed.
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Page 29: 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 30 5.2.3 Clean the Main Bay Daily 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.
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Page 31: Laser Path Alignment
5.3 Laser Path Alignment Having a proper beam alignment is important for the machine's overall efficiency and the quality of its work. This machine went through a complete beam alignment before shipping. When the engraver first arrives and about once a week during normal operation, however, it is recommended that users confirm that alignment is still at acceptible levels and that the mirrors and focus lens have not shifted due to movement of the machine. - Page 32 5.3.1 Laser Tube 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 11% or lower. Press Laser Test Switch to manually fire the laser.
- Page 33 5.3.2 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, gently move the X axis rail along the Y axis to send the 2nd mirror to the back of the bed. Once set, place a piece of tape on the 2nd mirror's frame.
- Page 34 5.3.3 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. Gently move the X axis rail along the Y axis to send the 2nd mirror to the back of the bed. Gently move the laser head along the X axis to the far left.
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Page 35: Parts Replacement
5.4 Parts Replacement The engraver should not be modified or disassembled by anyone except trained and skilled professionals, but some consumable parts may require replacement after prolonged use. Be sure only to use identical or compatible replace- ment parts with this engraver. Contact your vendor or our technicians if you have any questions about fitment. Using incompatible components is highly dangerous and waives all the manufacturer's liability for any damage or injury caused. -
Page 36: Disposal
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. - Page 37 U S B - 0 3 2 B - U 1 Rev. 12 Dec. 2022...