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Using the Epilog Legend 36EXT Laser

Using the Epilog Legend 36EXT Laser. Giorgos Nikoleris. 2007. Parts made in our laser. Specifications. Maximum Engraving Area: 900 X 600 mm Maximum Material Thickness : 300 mm (350mm) Effect : 60W CO 2 laser. Materials. Engrave:

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Using the Epilog Legend 36EXT Laser

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  1. Using the Epilog Legend 36EXT Laser Giorgos Nikoleris 2007

  2. Parts made in our laser Giorgos Nikoleris

  3. Specifications • Maximum Engraving Area: 900 X 600 mm • Maximum Material Thickness: 300 mm (350mm) • Effect: 60W CO2 laser Giorgos Nikoleris

  4. Giorgos Nikoleris

  5. Materials Engrave: Wood, Acrylic, Glass, Plastic Coated Metal, Anodized Aluminum, Ceramic, Delrin, Leather, Marble, Granite, Matte Board, Melamine, Paper, Pressboard, Rubber, Wood Veneer, Fiberglass, Circuit Boards, Stainless Steel, Painted Metal, Cork, Corian, Cloth, Mylar, Tile   Cut: Wood, Acrylic, Plastic, Delrin, Cloth, Leather, Matte Board, Paper, Mylar, Pressboard, Rubber, Wood Veneer, Fiberglass, Cork, Melamine, Corian Giorgos Nikoleris

  6. Cutting of non-metals • Meltshearing • Thermoplastics: (Nylon, Polystyrene, …) • Vaporization • Acrylic: BEST CHOICE, perfectcutedges • Polyacetal (largevolumes of gaseousformaldehyde) • Chemical degradation • Thermoset polymers, cellulosic material, rubber, epoxyresins • Cellulosic material: 2000 °C • PVC: Dangerous !! HighlytoxicHClfumes Giorgos Nikoleris

  7. Laser process Giorgos Nikoleris

  8. Cutting wood or other grained material Giorgos Nikoleris

  9. Lowering the table before focusing Giorgos Nikoleris

  10. Auto Focus Giorgos Nikoleris

  11. The Printer Preferences window Giorgos Nikoleris

  12. Table of line weight that will Raster engrave at a given resolution Giorgos Nikoleris

  13. Table of line weight that will Vector Cut at a given resolution Giorgos Nikoleris

  14. Summary • Use always 600dpi • Use line weight 0.025mm to cut • Use line weight greater than 0.175mm to engrave • Or if you are doing something very special consult the tables … • Note: Check for hidden lines Giorgos Nikoleris

  15. Raster engraving Giorgos Nikoleris

  16. Piece size Giorgos Nikoleris

  17. Top-down and bottom-up engraving Giorgos Nikoleris

  18. Center Engraving Giorgos Nikoleris

  19. Center Engraving Giorgos Nikoleris

  20. Image Dithering Clipart Modes: Standard, Brighten and Low Res Photograph Modes: Floyd Steinberg, Jarvis and Stucki Giorgos Nikoleris

  21. Image Dithering Giorgos Nikoleris

  22. Vector Cut Settings Giorgos Nikoleris

  23. Creating a Perforation usinglowFrequency Giorgos Nikoleris

  24. Advanced Properties Giorgos Nikoleris

  25. 3D mode Giorgos Nikoleris

  26. Stamp Settings Giorgos Nikoleris

  27. Color Mapping Giorgos Nikoleris

  28. Multiple passes Giorgos Nikoleris

  29. The Operator Panel Giorgos Nikoleris

  30. Air assist Cone style air assist Giorgos Nikoleris

  31. Lifting the table Giorgos Nikoleris

  32. The Rotary Option Giorgos Nikoleris

  33. Leveling the surface Giorgos Nikoleris

  34. Pin Table Giorgos Nikoleris

  35. Advanced Combined Work Giorgos Nikoleris

  36. Giorgos Nikoleris

  37. Safety Rules • NEVER let the laser system operate if it will be unattended. • KEEP the area around the machine clean and free of clutter, combustible materials, explosives, or volatile solvents such as acetone, alcohol, or gasoline. • ALWAYS keep a properly maintained and inspected fire extinguisher on hand. • ALWAYS use air assist when vector cutting. • BE CAREFUL! when vector cutting. Many materials have the potential to burst suddenly into flames – even materials that may be very familiar to the user. Always monitor the machine when it is operating. • KEEP YOUR LASER SYSTEM CLEAN – A build up of cutting and engraving reside and debris is dangerous and can create a fire hazard in its own right. Keep your laser system clean and free of debris. Regularly remove the vector grid to clean any small pieces that have fallen through the grid. Giorgos Nikoleris

  38. Acrylic - Tips & Tricks • In principle it is very easy to cut acrylic. Generally speaking, the maximum laser output is set and the speed is adjusted so that the material is cut through. High-quality cutting results, however, can only be achieved with carefully selected parameters. At slow speeds, the cut edges achieved are rather more polished. However, if cutting is too slow, the resulting cut is wide and extends outwards towards the bottom. However, this also depends on the point of focus and the focal length used. Use a focal length of 2.5 inch for thicknesses between 3 and 8 mm, for thicker materials the focal length set should be 5 inch. The focus should not lie on the surface but approximately a third of the way inside the material. Striation increases with speeds that are too high. The gas flow should be set as low as possible to achieve the best possible quality. However, a higher gas flow allows faster cutting speeds. • The acrylic used is also very important. Acrylic may be cast or extruded. Cast acrylic is excellently suited to laser cutting. With extruded acrylic, the cut edges become milky after cutting due to the stresses released. It is also important to achieve clean adjustment of the beam since the cut edges are not vertical if there is any astigmatism and exhibit different angles depending on the direction of displacement. Therefore, the selection of a laser source with good beam quality is particularly crucial. • Also, it is particularly important to prevent reflections of the laser beam as far as possible since they cause visible unevenness in the cut edges. For this reason, the material may not lie completely flat on the processing surface. Use a special cutting table for this purpose. As a result the beam will barely be reflected and you will get clean-cut edges. • It is also important to remove the protective film prior to processing. • Caution: Never operate the laser without supervision as acrylic tends to burn and create flames! Giorgos Nikoleris

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