The key to a polished edge finish is to put sufficient heat into the acrylic surface surrounding the cut. 3mm thick Frosted front and Back Up to 600x600mm sheet size. There are actually two types of acrylics suitable for use with the laser: cast and extruded. To achieve the best results when cutting extruded acrylic, you'll want to elevate the material so that it's not touching the cutting table. For the most part, laser users engrave acrylic on the back side to produce a look-through effect from the front. You’ll see this often on acrylic awards. Laser cutters are also easy to use, as they function as a printer. A computer directs this laser to follow the cutting line provided in your digital design. Laser cutting acrylic is developing a clear smoke with distinct sweet smell. Gemini’s laser cut acrylic is customizable for almost any application. So I thought I’d put down some suggestions to get you started. A lens with a long focal length will have a larger beam diameter, the temperature at the outer edge of the beam is sufficient to melt but not vapourise the acrylic. This cutting process allows the laser beam to melt the edges of the acrylic and essentially produce a flame-polished edge. Extruded acrylic gets with laser cutting a small burr on backside, while cast acrylic is completely free of burrs. Acrylic glass, polymethyl methacrylate (PMMA), is a synthetic, transparent thermoplastic material. When using stand-offs, the reflected beam becomes so defocussed by the time it hits the bottom of the acrylic it does not have enough energy to mark it. Frosted Acrylic. Having a decent cross-flow of air across the sheet can reduce the risk further. Bookmark this handy 'cheat-sheet' for cutting cast & extruded acrylic sheet on your Glowforge. Buying a Chinese Laser Cutting & Engraving Machine. When you use a laser cutter for acrylic, you can create some truly amazing pieces of art. This site is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. Edge-lit acrylic signs are manufactured from clear cast acrylic that has been laser engraved with an image on the rear surface. Laser cutting acrylic is an exceptionally popular application for Epilog Laser machines because of the high-quality results that are produced. For a productive work method, we recommend a laser power of 60 watts or more. This will depend on the wattage of your laser cutter. Pearlescent Acrylic. To clean your Acrylic laser cut or laser engraved parts, simply use a mild soap and lukewarm water mixture with a clean soft cloth, do not use cleaning sprays. If you have a flat metal bed then Dome nuts are a great solution, they will sit flat on the bed and only the tip of the dome comes in contact with the sheet. The Pin Table also allows you to place pins to support small or intricate parts that would normally fall out of the cutting pattern. Epilog's Pin Table is the perfect accessory to help you get those perfect cuts on extruded acrylic. It is also recommended to avoid rough cloths, scouring sponges, lacquer thinner, and aggressive cleaning products. A low air assist level can also result in flare-ups when the laser beam ignites the concentrated acrylic vapours. 2021 © Epilog Laser. Fill out the form on this page to get a full product line brochure and laser cut and engraved samples. There is also less margin for error; a laser cutter is computer-based and works off of the X … Quality Manufacturing: There are acrylics made for laser cutters that are of high quality and readily available. Attempting to cut 3mm Acrylic in various colours with the HyperCube 3D Printer/CNC. The rule of thumb is: 10 watt laser power per 1 mm sheet thickness for a high cutting quality (Up to a … Plexiglass, especially colored plexiglass, is a popular acrylic. We are compensated for referring traffic and business to Amazon and other companies linked to on this site. 3mm thick only Up to 900x600mm sheet size. You can acquire cast and extruded acrylic from a number of materials suppliers. Both cast and extruded acrylic will engrave. Interestingly, they look identical, buton many occasions, you’ll always choose one based on several reasons. 99. Cutting acrylic is usually best achieved with relatively slow speed and high power. Extruded acrylic in its sheet form is manufactured by pushing a mass of acrylic through a shaped opening. When cutting acrylic on a metal cutting bed, the laser energy may hit the metal cutting bed and bounce back into the material causing divots or vertical marks along the cut line. The main areas of application are in the advertising industry. 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