Universal Laser Systems VLS2.30 User Manual
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Universal Laser Systems VLS2.30 User Manual

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VLS Desktop User Guide
VLS2.30, VLS3.50
www.ulsinc.com
Revision 2012.08

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Summary of Contents for Universal Laser Systems VLS2.30

  • Page 1 VLS Desktop User Guide VLS2.30, VLS3.50 www.ulsinc.com Revision 2012.08...
  • Page 2 ©2012 Universal Systems, Inc. All Rights Reserved. Universal Laser Systems logo and name are registered trademarks, and High Power Density Focusing Optics, Rapid Reconfiguration, 1-Touch Laser Photo, Laser Interface + and SuperSpeed are trademarks of Universal Laser Systems, Inc. All other company and product names are trademarks or registered trademarks of their respective companies.
  • Page 3 Thank you for choosing Universal Laser Systems®. We appreciate innovative customers like you who have made Universal Laser Systems an integral part of their business. Universal Laser Systems is committed to providing the highest level of customer satisfaction and support. To ensure your satisfaction, we urge you to read the documentation provided with your equipment.
  • Page 4 Table of Contents USER GUIDE CD Chapter 1 – Specifications Chapter 2 – Safety Chapter 3 – Installation Chapter 4 – Operation Chapter 5 – Accessories Chapter 6 – Maintenance Software Your Reference Guide contains the Software Installation CD. Please follow the instructions for proper installation. Warranty Your Reference Guide contains Warranty documents pertaining to your purchase.
  • Page 5 Chapter 1 - Speci cations...
  • Page 6 VLS2.30 VLS3.50 Operating Well-ventilated office (recommended) or clean, light-duty manufacturing Environment Operating 50ºF (10ºC) to 95ºF (35º C) capable Temperature 73ºF (22ºC) to 77ºF (25º C) for best performance Storage Temperature 50ºF (10ºC) to 95ºF (35º C) Operating Humidity Non-condensing...
  • Page 7 VLS2.30 VLS3.50 16 x 12 in 24 x 12 in Work Area* (406 x 305 mm) (610 x 305 mm) 18.75 x 14.5 in 26.75 x 14.60 in Table (476 x 368 mm) (679 x 368 mm) Maximum Part 18.75 x 14.5 x 4 in 26.75 x 14.5 x 4 in...
  • Page 8 Chapter 2 - Safety...
  • Page 10 REGULATIONS UNDER EN60825-1. CDRH is the Center for the Devices of Radiological Health division of the Food and Drug Administration (FDA) in the USA. No guarantees of suitability or safety are provided for any use other than those specified by Universal Laser Systems, Inc. Laser Safety...
  • Page 11 and Fiber Laser Safety (PLS6 Multi Wavelength Laser System Only) The PLS6 multi wavelength laser system is designed to support a sealed carbon dioxide (CO2) laser cartridge that produces intense invisible laser radiation at a wavelength of 10.6 microns or 9.3 microns in the infrared spectrum and a fiber laser cartridge that produces intense indivisible laser radiation at a wavelength of 1060 nanometers (1.06 microns).
  • Page 12 Laser Safety When Using the Optional Class 4 Module (ILS Laser System Only) ILS laser systems are equipped with interlocked access doors on either side of the unit. An optional device is available to allow the user to operate the laser system with the side doors open. This device bypasses the safety interlocks on the side doors of the ILS laser system.
  • Page 13 The Owner of the Class 4 laser system will be responsible for creation of a controlled area in which a Class 4 laser system will be operated. A controlled area is an area designed to fully contain the laser radiation potentially escaping from a Class 4 laser system. and with measures in place to prevent unauthorized personnel from entering the area including lighted warning signs outside the designated and controlled area and interlocks on entryways.

  • Page 14: Safety Labels

    If the labels become damaged or have been removed for any reason, do not operate the laser system and immediately contact Universal Laser Systems, Inc. at 480-609-0297 (USA), +43 1 402 22 50 (Austria), +81 (45) 224-2270 (Japan) or e-mail us at support@ulsinc.com...

  • Page 17: Eu Declaration Of Conformity

    EU Declaration of Conformity Product Identification: All ULS Laser Systems Manufacturer: European Office: Universal Laser Systems, Inc. Universal Laser Systems GmbH 16008 N. 81st St. Lerchenfelder Guertel 43 Scottsdale, AZ 85260 A-1160 Vienna/Austria The manufacturer hereby declares that the equipment specified below is...

  • Page 18: Fcc Compliance

    15, using shielded cables. Shielded cables must be used in order to insure compliance with FCC regulations. Recycling By placing the above symbol on our products and accessories, Universal Laser Systems is indicating that we are committed to helping reduce the amount of waste electronics ending up in municipal landfills. Therefore, Universal Laser Systems urges consumers to recycle this product and its accessories.
  • Page 19 Chapter 3 - Installation...
  • Page 20 Damage to the laser system due to inadequate or improper installation or operation is not covered under the Universal Laser Systems (ULS) Warranty. See the ULS Warranty for additional information. A ULS Warranty document is supplied with your laser system. Should you require a copy of the Warranty, please contact the ULS Customer Service Team at 480-609-0297 (USA), +43 1 402 22 50 (Austria), +81 (45) 224-2270 (Japan) or e-mail us at support@ulsinc.com.
  • Page 21 2. The exhaust system must be capable of supplying a minimum of: VLS2.30 - 150 CFM (cubic feet per minute) of airflow while under a load of 6 inches of static pressure (254m3/hr at 1.5kPa) b. VLS3.50 - 250 CFM (cubic feet per minute) of airflow while under a load of 6 inches of static pressure (425m3/hr at 1.5kPa)
  • Page 22 VLS2.30 and VLS3.50 1. Exhaust blower mounted outside* (User Supplied) 2. Weatherproof shield (User Supplied) 3. Rigid ducting matching the diameter of the blower inlet (User Supplied) 4. Shut-off or air-flow gate (User Supplied) 5. Adapter to the hose reduces from 4” to 3” (User Supplied) 6.
  • Page 23 Step 2: Computer Requirements and Software Installation Your computer is a critical component in the operation of your laser system. In fact, you cannot operate the laser system if your computer is not connected, powered on, running Windows and running the Universal Control Panel (UCP) software.
  • Page 24 Computer Power Management Power management settings on your computer can interfere with proper operation of the laser system by putting the PC in standby or sleep mode while the laser system is processing material. The settings can be controlled through the power options in the Windows control panel on your PC. The illustrations below show you how to disable power management.

  • Page 25: Software Installation

    Software Installation At this point you need to install the Universal Control Panel (UCP) and printer driver. In order to install the software, you need to have administrative privileges on the computer before starting installation. Use the Software Installation CD-ROM included with your laser system. 1.
  • Page 26 Step 3: Assembling and Connecting Your Laser System Familiarize yourself with the instructions before getting started. The final step in installation is to assemble your laser system, install the laser cartridge, make final connections and perform a beam alignment check. Do not power up your laser system until the final step, “Checking Beam Alignment.”...
  • Page 27 Bend and connect the short exhaust hose (1) provided with the air filtration unit to the exhaust port on the back of the laser system and secure it with the provided hose clamps. Once the hose is attached, install the provided sheet metal cover over the exhaust hose. Attach a power cord to the air filtration unit’s power inlet (5), but do not plug into power outlet at this point.
  • Page 28 3. Using a flat blade screw driver gently open the Thermal Sensor battery holder drawer on the back of the laser system as indicated and install the provided 9-volt battery into the battery holder. Note: A properly installed 9-volt battery is necessary to operate the laser system. The laser system will not function without a charged battery installed.
  • Page 29 b. Locate the two mounting blocks shown with arrows below and the laser connector on the left side of the laser compartment. c. Locate the “V” groove along the upper (3) and lower (2) part of the laser cartridge base plate and the alignment plate (1) at the end of the base plate.
  • Page 30 d. Pick up the laser cartridge by the ends and mount the cartridge onto the mounting blocks shown in step b by placing the upper “V” groove on top of the mounting blocks. Slide the cartridge to the right or left as necessary until the mounting holes in the top of the laser line up with the mounting holes in the top of the laser mounting block.
  • Page 31 After connecting the USB cord, the “Found New Hardware Wizard” will open to install the drivers for the USB connection. If the wizard offers to connect to “Windows Update” to search for software, select “No, not at this time.” Then select “Next” to continue. a.
  • Page 32 Checking Beam Alignment As a final step in the installation process you need to check your beam alignment. You do this using the red pointer beam. 1. Open the top door and rotate the x axis arm cover up and out of the way. 2.
  • Page 33 (0.49 mm) thick anodized aluminum test card supplied with your laser system. For additional test card please contact Universal Laser Systems’ Customer Service Team at 480-609-0297 (USA), +43 1 402 22 50 (Austria), +81 (45) 224-2270 (Japan) or e-mail us at support@ulsinc.com.
  • Page 34 Step 3 – Printing to the Laser System (Using the Materials Database Tab) 1. Verify that the Universal Control Panel (UCP) is running in the taskbar by looking for the square red icon.     2. When you are ready to print the job, select PRINT from the CorelDRAW FILE menu.
  • Page 35 Step 4 – Starting the Process 1. Turn on the exhaust and laser system if not already on. Note: Laser system cooling fans are variable speed and may speed up and slow down during operation as needed to cool the lasers. 2.
  • Page 36 Chapter 4 - Operation...
  • Page 37 Important Overview CAUTION: Please refer to the Safety section before operating the laser system. All ULS laser systems are designed to operate like a computer printer. The laser systems are provided with two software components designed for Microsoft Windows based operating systems. The first component is a printer driver that allows you to print from any Windows based graphic software capable of printing through the Windows print system.
  • Page 38 The Printer Driver Interface The printer driver is a piece of software that allows you to create jobs for the laser system using the Windows print system. The printer driver has a preferences dialog with two tabs which allow you to set various parameters for a print job.

  • Page 39: Normal Mode

    This mode is for very specific applications. If you select 3D mode, you can adjust how the grayscale levels are mapped to laser power levels using the SETUP button. You can contact our applications lab at Universal Laser Systems for more information on use of the 3D mode.
  • Page 40 This section allows you to switch between Metric and English units. 1-Touch Laser Photo This switch is automatically selected when printing photos from Universal Laser Systems 1-touch Photo laser photo printing software. This switch also be selected when printing a photo processed by 1-Touch Photo and then imported into other software before printing.
  • Page 41 Material Editor (Only available for customer materials - New or Cloned) This section of the driver allows you to edit new or cloned custom materials you have added to the materials database. Please note that you cannot edit any of the standard materials that come with the printer driver. They are read only.
  • Page 42 Fiber Laser Settings If the material settings are for a fiber laser enter the fiber laser settings here. Raster Engraving Settings In this section of the Material Editor window you enter the laser job settings to be used for raster engraving.
  • Page 43 Manual Printer Driver Interface Tab (advanced users) This tab of the printer driver is for the advanced user and allows the user to manually configure all laser job settings. This approach allows the user much more configurability, but requires a deeper knowledge of the laser job settings and how they affect laser processing.

  • Page 44: Set Button

    % Speed This setting allows you to select processing speed from 0 to 100%. This setting determines the maximum rate of travel of the motion system. Actual engraving time (throughput) is not only dependent on the % Speed setting, but is also dependent on the size, intricacy and the placement of the graphic in the engraving field.
  • Page 45 Apply Button The APPLY button saves all changes made to the printer driver settings. Default Button The Default button will reset the driver settings to factory default values. You may abort these changes by selecting Cancel; selecting OK or APPLY will approve the changes. Load Button To recall a snapshot of the printer driver settings that have been previously saved to a .LAS file using the save button, select on the “Load”...
  • Page 46 Raster Sub-Tab The raster sub-tab on the manual control tab of the printer driver setting interface displays a group of settings which affect how raster objects are processed by the laser system. The controls in the sub-tab are described below: Print Special Effects The drop down list allows you to choose from several special print modes, normal for most...
  • Page 47 Rubber stamp mode This mode is specifically for rubber stamp creation and is E n g r a v e d O r i g i n a l used for creating shoulders on characters and graphics R e s u l t G r a p h i c when processing rubber stamps.
  • Page 48 Power The Power table graphically represents the shoulder characteristics of the predefined rubber stamp shoulders and also allows you to adjust the shape of any custom shoulders you create. You will notice that you cannot adjust the settings when a predefined shoulder is selected.
  • Page 49 1-Touch Laser Photo Switch This switch is automatically selected when printing photos from Universal Laser Systems 1-touch Photo laser photo printing software. This switch also be selected when printing a photo processed by 1-Touch Photo and then imported into other software before printing. This switch optimizes settings for best results with 1-Touch Photo images.
  • Page 50 Black and White Mode The Black and White dither pattern is a thresholding pattern that thresholds at 50% black. Each pixel in a grayscale image that is greater than 50% black will be converted into black and each pixel that is less than 50% black will be converted into white. This dither pattern will not give good results for reproducing photographs, but is very useful when printing images that should be black and white yet may have some unintended grayscale pixels in them.
  • Page 51 Image Enhancements This section contains settings for enhancing and improving raster imaging. Texturize Texturize is a special feature which adds random variation to the laser power level assigned to each color. This is useful for creating a textured effect on engraved surfaces to mask grain lines and motion artifacts.
  • Page 52 Image Enhancement Dropdown Menu Various Image Enhancement modes improve marking and engraving quality at high speed by compensating for laser response in order to make edges crisp and defined and to keep thin elements of a graphic being printed, such as certain fonts (especially at small font sizes) and thin vertical lines, from fading out.
  • Page 53 The low density parts of the graphic are typically the ascenders and descenders of text or thin vertical lines in a graphic being printed. Within this area, using too little DEFINITION may cause thinner parts of the letters or thin vertical lines to appear too thin, faint or even non-existent when rastering at high speeds.
  • Page 54 Step 3: Adjust DEFINITION to enhance the ascenders and descenders. Now, increase the DEFINITION in increments of 5 at a time until the ascenders and descenders begin to appear sharp and clear. The objective is to increase the setting just enough to cause these parts of the graphic to match the appearance of the high density areas.
  • Page 55 neighbor” starting point method. Once open paths are completed, closed paths will follow in a nested order, beginning with closed paths that are contained within other closed paths, with the innermost closed path executed first and ending with the outermost closed path. Enhance and Sort Enhance and Sort turns on both features simultaneously.

  • Page 56: Center Image

    Max Size Button Selecting the Max Size button restores the width and height to the maximum values your laser system can accept. Center image This selection allows you to force jobs to always be centered in the processing area. Merge Pages This setting allows you to treat multipage documents in different ways.
  • Page 57 The Universal Control Panel (UCP) When a graphic has been printed through the printer driver a laser job is created and passed to the queue in a piece of software called the Universal Control Panel (UCP). The UCP software provides a convenient interface for interacting with and controlling your laser system.
  • Page 58 Focus View The Focus View allows you to quickly manually move the focus carriage to a desired position in the material processing field. • To have full range of motion, verify that you are zoomed out in the preview window by right- clicking on the mouse before entering the manual focus window.

  • Page 59: File Management

    File Management As jobs are printed, they are added to the print queue until the queue reaches the print queue limit set in the system tab. Once the Print queue reaches the maximum number of jobs, the printer driver deletes the oldest job each time a new job enters the queue (a FIFO system).
  • Page 60 System Tab The System Tab allows you to configure certain features of the laser system. If your laser system needs to be calibrated, you will need to do so from this tab. The System tab contains the following controls: • The PRINT CACHE number indicates the maximum number of print jobs that will be stored...
  • Page 61 • If you would like the laser system to re-home the X and Y axes before it processes each job, select the ‘Home XY Before Engraving’ switch. Diagnostics Tab The Diagnostics Tab gives you important information about your laser system for troubleshooting purposes. The diagnostics tab contains the following: •...
  • Page 63 Loading and Processing Materials Before laser processing material, you will need to load material into the laser system and then focus the laser system onto the top surface of the material. Loading Material Open the top door to the laser system and place material to be laser processed onto the engraving table. You may need to manually move the support table down to allow clearance to fit thicker materials into the machine.
  • Page 64 A second focusing method is to measure the thickness of the material (use a calipers for accuracy) to be laser processed and manually move the Z axis up or down until the Z axis position equals the measured thickness. Important Note: Make sure the lens specified in the system tab of the UCP matches the lens installed in the laser system when using this method.
  • Page 65 Third-Party Graphic Software Con guration ULS Windows Printer Driver will work with a wide variety of Windows based graphic software to create laser jobs through the Windows Print System. Every effort has been made to make the printing process as seamless as possible, however, to get the best results when printing through the ULS Windows Printer Driver, you should be aware of a few general guidelines for all software as well as some specific notes regarding some of the more popular Windows software for printing to the laser system.
  • Page 66 Vector Output for Vector Cutting and Marking The printer driver distinguishes between raster objects (raster engraving) and vector objects (vector cutting and marking) by the types of elements contained in the graphic being printed. All graphics, other than outlines of very thin line widths will be interpreted as raster objects and the raster mode will be used for laser processing.
  • Page 67 AutoCAD and AutoCAD LT Note: AutoCAD version 2000 is not compatible with ULS laser systems. You must upgrade to version 2000i or higher. Vector output Line widths for printing from AutoCAD products are controlled by plot styles. Make sure you set the first eight pens in the plot style you use to .001”...
  • Page 68 Chapter 5 – Accessories...
  • Page 69 Air Assist System Air Assist is employed with a backsweep or cone to direct air flow onto the material being processed during laser material processing. This feature also provides compressed air to the optics (mirrors and lenses) in the system, reducing contamination.
  • Page 70 2. Using the provided 3/16 nut driver, attach the needle valve (1) to the port from which you removed the plug. Be careful not to cross-thread the small fitting when installing and do not over tighten it (the needle valve will be left permanently installed on the carriage from this point forward). Attach the air assist back sweep (2) to the mounting block using the thumbscrew (3) and adjust it up or down (4) as necessary.
  • Page 71 Air Assist Cone The cone attaches to the base of the Focus Carriage and will force air directly onto the surface of your material. It also helps to protect the lens from contamination. CAUTION: Do not install the cone unless you plan on using Air Assist and never use the Air Assist Cone without proper airflow.
  • Page 72 3. Loosen the thumbscrew (1) on the side of the Focus Carriage (if already attached). Insert the cone (2) into the cone base on the bottom of the Focus Carriage until it bottoms out and gently tighten the thumbscrew. Air Flow adjustment The needle valve can be used to adjust air flow for different applications.
  • Page 73 ULS Computer Controlled Compressed Air Unit The ULS Computer Controlled Compressed Air Unit provides a 50 PSI max pressure and 2.0 cfm free air flow (3.2 bar and 3.2 cubic meters/hour) source of clean, dry, oil free compressed air for air assisted laser material processing.
  • Page 74 Maintenance At least once per month, check the condition of the two filters on the back of the device. If they are dirty, simply remove them by snapping off the covers, removing the filter media, washing them out with mild soap and water, drying the filters and re-installing.
  • Page 75 Cutting Table The cutting table is used to support material when cutting so that exhaust flow is redirected both above and below the material for clean cuts. Without it, smoke and debris can build up underneath the material causing the surface of the material to be damaged.
  • Page 76 Locate the self-aligning electrical connector (1) and two alignment holes (2) on the underside of the cutting table. Using the thumbscrews as handles (1), install the cutting table into the machine (the cutting table is hot swappable so it is not necessary to turn power off to switch between table and cutting table) and adjust it until it engages the connector and alignment pins.
  • Page 77 +/- 0.140” (3.5 mm) making it much less sensitive to flatness of material and accuracy of focus, but with the trade off of a larger spot size. Contact Universal Laser Systems customer support for help in choosing the right lens for your application.
  • Page 78 Automation Kit The Automation Kit provides six inputs to initiate various laser system functions using signals from external devices, such as PLCs and provides two outputs for polling laser system status. The automation kit is automatically detected upon power-up, and is configured from the System Tab in the UCP. If the automation kit is not present, the controls for the automation kit on the systems tab of the UCP will not be visible.
  • Page 79 External Wiring The automation kit connector J2 is used to wire external signals to six programmable inputs which can initiate various laser functions. To trigger a function, supply between 5V DC to 24V DC to one of the input pins as shown below.
  • Page 80 Example Connection for PNP mode Example Connection for NPN mode...
  • Page 81 Available Automation Port Functions Input and output events are configured in the systems tab of the UCP. The controls for automation Port setup will only be visible if the automation board is plugged in and working properly. You can configure the input functions to perform the following actions: Start Job, Pause Job, Resume Job, Select Previous Job, Select Next Job, Initiate Autofocus, Display a Message, Z height and Quit the UCP application.
  • Page 82 Rotary Fixture The Rotary Fixture allows the laser system to engrave and mark on cylindrical objects. The Rotary fixture is equipped with an external cone shaped fixture mounted to the fixed, motorized end and an internal cone shaped fixture attached to the adjustable end allowing the fixture to hold a variety of objects such as wine glasses, mugs, cups, etc.
  • Page 83 Rotary Position Calibration a. Raise the Z-Axis platform to the top of its travel (engraving table should be removed first). b. In the UCP Viewer Tab, select the Focus Feature on the Viewer Tab. Using the mouse pointer and the manual motion keys in the UCP move the carriage manually and center red alignment pointer on the right alignment pin.
  • Page 84 Lower the laser system engraving table enough to install the rotary fixture. Make sure the motion system will clear the top of the rotary fixture. On the underside of the Rotary Fixture locate the self-aligning electrical connector (1) and two alignment holes (2).
  • Page 85 Rotary Focus Calibration a. In the UCP Viewer Tab, select the Focus Feature on the Viewer Tab. Using the mouse pointer and the manual motion keys in the UCP move the carriage manually and center red alignment pointer over the flat part of the internal cone fixture. Use the focus tool and manually focus on top of the flat part of the internal cone fixture.
  • Page 86 Loading Material Before loading material into the fixture, measure the diameter (1) of the material in the area where the engraving or marking is to be located, by using a caliper or similar measuring device. A wine glass is used for illustrative purposes here.
  • Page 87 Determining Graphic Placement The next step is to align the graphics to be printed with the material inserted in the rotary fixture. Again, a wine glass is used for illustration. You can use the X axis ruler or to be more precise use the Red alignment Laser and the X-Y coordinate display in the UCP to position the graphics in the X axis.
  • Page 88 Once you have the new engraving field size, exit the printer driver properties dialog. In your graphics software change the page size to equal the new engraving field size from the printer driver dialog. This new vertical dimension of the page is now the circumference of the material to be engraved. 10.
  • Page 89 Printer Driver Settings (materials driver tab) 1. Start the graphic software you plan to print the job from and open or create the artwork you plan to print to the laser system. 2. Position your graphic on page so that it is located horizontally within the upper and lower engraving limits that you determined earlier and center the graphic vertically as shown below.
  • Page 90 Pin Table The Universal Pin Table is designed to eliminate certain scorch marks and other defects which may occur when cutting acrylic, wood or other sensitive materials using conventional laser cutting tables. By using specially coated aluminum pins to elevate the material being processed, the Universal Pin Table greatly reduces the amount of laser energy reflected back into the material from the table surface.
  • Page 91 • Sort vectors – rearrange vector processing order to maximize processing efficiency. In most cases, this box should be checked. Options available for DXF files: • Sort vectors – rearrange vector processing order to maximize processing efficiency. In most cases, this box should be checked.
  • Page 92 Chapter 6 - Maintenance...
  • Page 93 Overview Accumulation of dirt and debris on the motion system components will cause uneven or rough engraving, loss of engraving position and premature failure. Accumulation of smoke or dirt on optics can result in loss of laser power and premature failure. It is important to keep your laser system as clean as possible to ensure trouble free operation and best results from laser processing.
  • Page 94 Cleaning and Maintenance Supplies • Mild soap solution mixture of 1 tablespoon (14.78 ml) liquid soap and 1 quart (liter) of water in a spray bottle • Window cleaner • Paper towels • Cotton cloth • Denatured alcohol (do not use on any painted surface, plastic or the Top Window) •...
  • Page 95 • Dampen a cotton swab or cotton cloth with soap solution and clean the Y axis v-groove shown below. Slide the X-Axis Arm toward the front or rear of the device as necessary to gain access to the entire length of the Y-axis v-groove. Main Enclosure •...
  • Page 96 Inspect the #2 mirror and clean it only if there is debris present. To clean the #2 mirror with a cotton swab, moisten the cotton swab with the lens cleaning solution supplied with the laser system. Do not use other types of cleaners or solutions.
  • Page 97 Beam Window The Beam Window (1) is located where the laser beam enters into the processing area. It is located in the upper left hand corner of the engraving area against the back wall and is yellow in color. It is only necessary to clean the front side of the beam window.
  • Page 98 Maintenance Schedule We recommend the following schedule: As necessary Every month • Clean engraving table • Clean cooling fan filters • Clean main enclosure • Clean Z-Axis lead screws with white lithium • grease Clean top door window • Check for X-Axis and Y-Axis belt wear. Every 8 hours of engraving Replace as necessary.
  • Page 99 www.ulsinc.com...

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