The Trotec acrylic product assortment contains a large selection is exciting acrylic sheets. Laser cutting cast acrylic produces burr-free cuts on either sides, and laser engraving will offer better processing results than extruded acrylic - a perfectly white engraved image results. Acrylic is one of the most essential and popular materials to work with i n the awards and engraving industry.It can also be one of the most difficult. If the frequency is too low, fine ridges or 'chatter marks' can become visible on the cutting edges. SP series: CO2 laser cutter for large-format materials. Laser cutting cast acrylic creates burr-free cuts on both sides. Lens selection is crucial when laser cutting acrylic. For those smaller parts (100mm or less) the acrylic cutting grid table, or the acrylic grid overlay on top of the vacuum are much more suitable. At present Trotec's range of acrylic, TroGlass, only contains cast acrylic sheets. Akin to choosing the right lens, selecting the correct laser table is an equally important factor for achieving optimal results when processing acrylic. To fix this issue, increase or decrease the frequency of the cutting speed without reducing it to the point of creating a cutting kerf that could cause a fire. Learn more about how to select the right lens for your application. The frosted surface, combined with the intrinsic hardness of cast acrylic, allows applications where … https://troteclaserinc.blogspot.com/2014/07/laser-cutting-acrylic-for-flame.html It's very useful to have a basic knowledge about these differences when deciding on a suitable acrylic for your chosen application. At the same time they provide the physical benefits of acrylic such as being formable, UV-stable and hard-wearing. For a quick and trouble-free working method, we'd recommend a machine with 60 Watts of power or more. You can easily draw this lead-in within your template, or you can use supplementary software packages like TroCAM as part of your work preparation. Cast acrylic is created by pouring a liquid mass between two glass plates, resulting in a homogeneous, tension-free material with equal mechanical properties in directions x & y. This is what we call a 'lead-in'. First, the number of nodes in the cutting contour needs to be reduced to a minimum to allow the laser to homogeneously process your materials without unnecessary stopping. Comprehensive Laser Settings Guide. In fact, it is paramount when completing any kind of laser application. At the same time they provide the physical benefits of acrylic such as being formable, UV-stable and hard-wearing. (Thickness up to 20-25 mm). When working with parts less than 100 mm, the acrylic cutting grid table and/or the acrylic grid overlay on the vacuum table will offer the best cutting results, because they allow for flat positioning. However, it is important to note that they behave quite differently to each other when laser processed. TroGlass Clear sheets are a great alternative to glass as they offer perfect optical clarity. We offer different product ranges of durable, acrylic-based engraving sheets for laser engraving at high speeds whilst producing high quality results with very little post production cleaning. The required laser power for cutting acrylic will ultimately depend on the material thickness as well as the desired productivity. Every single one of Trotec's CO2 laser machines are suitable for processing acrylic. Even when using printed acrylic, the product can look much better when printed on the reverse. It is beneficial to have a good understanding of the differences when selecting the right acrylic for your application, because each type will behave differently to laser processing. Cast and extruded acrylic adapts very well to laser technology and both are an ideal material for laser processing. ... Trotec offers engravable plastic sheet products that are also print receptive. The rule of thumb is: For every 1 mm of acrylic sheet thickness, 10 watt of laser power must be used to achieve a high quality cut. Firstly, the number of nodes in the cutting contour needs to be reduced to a minimal amount, which allows the laser to process homogeneously without any necessary stops. As far as cost, extruded acrylic is cheaper to produce than cast acrylic and is therefore cheaper as a series production. This can be completed either through your preferred graphics software or directly in the printer settings when the job is sent to the laser engraver. The resulting gases are efficiently removed and filtered out by the Trotec exhaust systems. Subscribe to our newsletter and stay up to date. and should be laser processed from down to up. Often, the best and most favorable results are achieved when only the surface of your acrylic workpiece is lightly scratched, resulting in a white engraved image. CO2 laser machines are exceptional at laser cutting, marking and engraving acrylic, and are the ideal solution for creating displays, illuminated signage, decorative objects, toys and more. Depending on settings, your engravings can produce either a white or a clear image. Every single one of Trotec's CO2 laser machines are suitable for processing acrylic. When engraving acrylic, remember: less is more! The increased frequency will bring the energy into the material in an even manner, causing an even melting of the cutting edges that reveals a glass-clear, flame-polished edge. TroGlass acrylic sheets are offered in a variety of colors and with different surface finishes (shiny, satin, frosted, matt/shiny combined...), so that your creativity won’t have any limits. Caution: Don’t forget to mirror the job! We usually recommend the acrylic slat cutting table, or even the acrylic cutting grid table for most acrylic applications. It's cheaper to produce, therefore cheaper to use for things like series productions and mass producing. At the same time they provide the physical benefits of acrylic such as being formable, UV-stable and hard-wearing. You can also download our PDF guide for more tips & tricks on processing acrylic materials. At Houston Acrylic, we're ready to get supplies in your hands today! Laser cutting acrylic will require a higher frequency than other popular materials, such as wood. TroGlass Clear sheets are a great alternative to glass as they offer perfect optical clarity. Additionally, laser engraving extruded acrylic results in a gray matte appearance and is therefore not recommended. At the same time they provide the physical benefits of acrylic such as being formable, UV-stable and hard-wearing. However, a good filtration system will suction these fumes out. The Trotec engraving plastic range covers 1 ply products for braille signs as well as 2 ply and 3 ply products for trophy plates or safety signs. In this video, we're working with 15mm (or 9/16", approximately) thick sheets of clear acrylic. Currently, Trotec only supplies an assortment of cast acrylic sheets. The careful preparation of your graphics can significantly improve the processing quality when working with acrylic. Remember: Move the focus to about ⅓ of the thickness of the material. This is because the vapours within the machine can be dangerous to you, your machine and the environment. We make tags, ADA signs, and larger format signs with your products. You should start high on cast acrylic (10 to 20 khz); and start lower on extruded (2 to 5 khz). The Trotec acrylic product assortment (TroGlass) offers a wide selection of glass-clear acrylic in thicknesses of 3, 4, 5, 6, 8, 10, 15 and 20 mm. It presses an acrylic mass through a nozzle with your desired thickness, making it a quicker process than with cast acrylic. This will help you achieve an even, homogeneous cut. Remember: the thicker the material, the longer the focal length. Depending on the size of your machine and application, there are many different tables you can choose from. In principle, all Trotec CO2 laser machines are ideally suited for laser processing acrylic. Smaller parts might slide around or fall through the gaps of this table, so we don't recommend its use in these situations. When the frequency is too low, fine ridges (a.k.a. When extruded acrylic is laser cut, you will be left with a beautiful flame polished edge that is much less sharp on one side. Laser engraving also yields better results than with extruded acrylic, with a perfectly white engraved image being created. A starting point that begins on a straight line or in the middle of a curve will be especially noticeable, and we recommend a starting point that is positioned in an unnoticeable corner. Defining the cutting start point is another crucial step when laser cutting acrylic, because once the laser beam hits the material, it will be visible from that point on and cannot be avoided otherwise. Use Trotec's free instructions and template download for your laser. The sky is your only limit! When engraving acrylic, Dean recommends taking the laser out of focus because the raster lines can become apparent when engraving cast acrylic. The following guiding values apply: Move focus to about 1/3 of the thickness of the material. If you want to cut lots of small graphics out of one large sheet, we suggest arranging the individual parts so that the material can cool off in between cuts. Using the proper exhaust system for your laser is essential when laser cutting acrylic, as with any laser application, to safely remove any of the vapors left in the machine from the cutting process. However, these configurations are only recommended for acrylic up to 8mm thick. Determining the proper parameters for you application is extremely important, especially in regards to working efficiently and safe. Warning- laser machines should never be left in operation unattended under any circumstance. As a rule, the thicker that the material is, the longer the focal distance of the lens should be. Available in a wide variety of colors, textures and transparencies, TroGlass products combine benefits such as clarity and excellent light transmission with advantages such durability and scratch resistance. 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. 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