General ULS Troubleshooting Guide
Contents
1. General ULS Troubleshooting Guide For further information please contact our support department Email support LSTgroup com au Phone 02 9584 9499 Engraving Quality Problem Fuzzy looking raster engraving or small text appears like a double image Fine detail is missing such as the serifs of characters or thin lines of script fonts when raster engraving Vertical or diagonal background pattern present when raster engraving large areas and or large amounts of material Horizontal background pattern present when raster engraving large areas and or large amounts of material Engraving disappears becomes lighter or appears choppy when raster engraving within 1 2 inch of Y axis ruler Raster engraving appears sharp on both ends of the engraving but fuzzy in the middle Possible Cause Dirty laser system Graphic graphic software graphic software setup color palette monitor display colors or driver settings have changed Speed to fast for the material Out of focus System needs tuning Worn X axis belt and or drive gear Speed to fast for the material Out of focus System needs tuning Laser spot size too big Dirty laser system Slight pattern is normal If the pattern is excessive Loose motion system components Worn or damaged X axis bearings Worn or damaged X axis rail Dirty laser system Slight pattern is normal If the pattern is exc2. Arm is out of square Print Driver needs to be updated The highest quality vectors are obtained by running less than 5 speed Clean all optics rails bearings and belts Check and or replace X and or Y axis bearings Square arm re adjust left side Y axis bearings so both are contacting Y rail equally Print Driver advancements have been improving vector quality Engraving Quality continued Problem Angled cuts when cutting through thick materials such as 1 4 acrylic Possible Cause Angled cuts are a normal condition if they are equal on all sides of the object The front side of the object will always be slightly smaller than the back side of the object due to the material spreading more at the focal point Angled cuts on only one or two sides indicates a slight beam misalignment at the 3 mirror or focus lens Possible Solution Cut a square and observe that each side is slightly tapered inward Check and adjust the beam alignment at the 3 mirror position and the focus lens The start and stop points of circles when cutting do not meet up Slight notching when cutting circles is a normal condition due to the beam starting and stopping at the same point If the pattern is excessive Dirty laser system Mechanical problem The laser beam has width and there is heat effects from starting and stopping the laser system at the same point Try
3. correct ambient temperature to be within specifications Remove carriage from rail check for freedom of movement of tensioning arm Lubricate if necessary Position of tensioning arm should be no greater than 10 o clock Check with Service Department for latest version When homing the arm slams repeatedly for a few seconds Bent Y flag Dirty or faulty home sensor s Faulty flex cable Faulty lower flex cable board Check and or straighten Replace upper flex board home sensor Replace flex cable Replace Lower flex cable board When focusing the Z axis table only moves in one direction Dirty or faulty Z axis sensor Try to clean sensor s with compressed air otherwise replace sensor When using Autofocus the table moves all the way down to the bottom and gets stuck Z axis Homing sensor is dirty or faulty Lens Calibration is incorrect Clean sensor or replace Re home Z axis and complete Lens Calibration setup Contact Service Dept for more information When powering up the laser the UCP will show the system is initializing but there is no physical movement on the laser No 240V power only USB power Check 240V power is connected to the laser and turned on Check fuses Laser not powering up or the RED power button in the UCP is greyed out No USB Connection No 240V power Check USB cable is connected to the laser system and computer Ch
4. extending the circle through the end point by adding a small line segment to reduce the effect If cutting the material when elevated off the table make sure that the center if the circles are supported Try rotating the circle 90 or 180 or 270 degrees Sometimes this helps reduce the effect Clean all optics rails bearings and belts Turn machine off and check for binding in the x amp y directions Check for excessive belt tension Flat edges on curves when vector cutting DPI setting too low PPI setting too low Software limitation 1000 DPI produces the smoothest edges when cutting Higher PPI settings produce smoother edges but may cause excessive burning or melting The graphic software you are using has limited vector smoothness capability Operational Problem Focus carriage looses X axis position and slams into the left or right side of the rail during high speed raster engraving Possible Cause Mechanical interference Dirty laser system CPU overheating Focus carriage X axis bearing tensioning arm too tight or binding If the pattern is excessive X belt too tight Worn or binding X axis bearings Worn or binding X axis idler pulley Worn or binding X axis motor Firmware needs updating Possible Solution Check if focus carriage makes contact with material or other objects Clean all optics rails bearings and belts Clean CPU filters
5. al to the right outside of this area Slowing the raster speed down reduces the effect Clean all optics rails bearings and belts Check X axis bearings drive gear idler pulley belt and optics Run Tuning test procedure Replace belt and or drive gear and run Tuning feature Replace laser tube Engraving Quality continued Problem Engraving does not appear as deep as it normally does Possible Cause Graphic graphic software graphic software setup color palette monitor display colors or driver settings have changed Out of focus Material or material density has changed Settings have changed Dirty laser system Laser tube cooling fan filters are dirty Chiller not maintaining temperature water cooled versions only Ambient temperature not within specifications Laser beam out of alignment with the optics Air Assist cone misaligned air assisted versions only Faulty laser tube Possible Solution Check to see what has changed Use Software Setup Guide to properly setup the graphics software to work correctly with the laser system Check driver settings Re focus Check material Check power speed PPI and DPI settings Clean all optics rails bearings and belts Check and or clean Check clean or adjust chiller Adjust ambient temperature to within specifications Check and or adjust laser beam alignment Check and or a
6. djust cone so that laser beam is in center Replace laser tube Engraving is sharp clear and at a good depth on one side of the table and fuzzy and shallow on the opposite side of the table Out of focus Dirty laser system Material is not level or varying in thickness Table is not level Laser beam out of alignment with the optics Air Assist cone misaligned air assisted versions only Faulty laser tube Re focus Clean all optics rails bearings and belts Check focus point of material and different places adjust height by shimming material or using more thickness consistent material Using the focus tool focus directly on the surface of the table in all four corners Table should be within 020 inches from one corner to the other Adjust if necessary Check and or adjust laser beam alignment Check and or adjust cone so that laser beam is in center Replace laser tube Engraving appears halftoned and not solidly filled when using colors other than black Graphic graphic software graphic software setup color palette monitor display colors or driver settings have changed Check to see what has changed Use Software Setup Guide to properly setup the graphics software to work correctly with the laser system Check driver settings Wavy lines when vector engraving or cutting Running too fast Dirty laser system Worn or faulty bearings
7. eck that the print driver is correctly installed Check 240V supply Laser system is continuously beeping and UCP shows low battery alarm 9V Battery for Thermal sensor needs to be replaced Thermal snap sensor faulty Replace 9v Battery Replace thermal snap sensor Laser system stops mid job No USB or 240V present Power saving options on computers is enabled Check USB and 240V power supply Check power saving options and DISABLE
8. essive Laser is too cold or hot Laser tube is faulty Normal condition The laser system needs to accelerate and decelerate within this area Dirty laser system Something is loose System needs tuning Worn X axis belt and or drive gear Faulty laser tube Possible Solution Clean all optics rails bearings and belts Check to see what has changed Use Software Setup Guide to properly setup the graphics software to work correctly with the laser system Check driver settings Slow down engraving speed Re focus Run Tuning test procedure Replace belt and or drive gear and run Tuning feature Slow down engraving speed Re focus Run Tuning test procedure Use shorter focal length lens Clean all optics rails bearings and belts Don t remove so much material or try engraving shallower or deeper Try changing PPI and or DPI Use a 50 black fill to halftone the background which can hide the pattern Check X axis bearings belt optics Replace X axis bearings Replace X axis arm Clean all optics rails bearings and belts Don t remove so much material or try engraving shallower or deeper Try changing PPI and or DPI Use a 50 black fill to halftone the background which can hide the pattern Check and or clean filters Make sure ambient temperature is within specifications Replace laser tube Move graphic and or materi
Download Pdf Manuals
Related Search