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Whether you are a proficient engineer or a beginner maker, learning the proper uses of design equipment to avoid pitfalls and mistakes takes time and experience. From time to time, issues come up that leave designers wondering what they did wrong or how they could do something better. This is true in every field and Laser Deep Engraving Machine engraving is no different.

Knowing how to prevent these mistakes so they don’t appear again is half the battle. Knowing that, let’s speak about five of the most common mistakes when it comes to laser engraving and the ways to prevent them later on projects.

Mistake 1: Engraving Fabric however the Laser Burns with the Material – The initial step in avoiding burning fabric with a laser engraving/cutting machine would be to understand which fabrics can withstand the process and at what temperatures. Heartier fabrics including denim, canvas and leather can withstand higher power settings during engraving. But in terms of delicate fabrics, it is important to start your settings at high-speed (near or at 100%) and low power (around 5% to 10%). Test these initial settings on some spare material, and if the material can withstand it, raise the power before you get the results you are looking for.

In terms of direct-to-garment engraving, it really is helpful to lower the dots per inch (DPI) where you engrave. The greater the DPI, the more material will be removed. Engraving at a lower DPI helps make sure the laser just slightly vaporizes the very best layer and doesn’t burn entirely through the fabric. Most fabric engravings do fine at 150 to 300 DPI.

Mistake 2: Acrylic Doesn’t Create a Frosty White Engraving – More than likely, this is caused by utilizing the wrong acrylic within the application. 2 kinds of acrylics are typically used in laser engraving and both are compatible with different applications. Cast acrylic sheets and objects are made from a liquid acrylic that is certainly poured into molds that may then be set into various shapes and sizes. This sort of acrylic is ideal for engraving because it turns a frosty white color when engraved, rendering it ideal for awards and plaques. It can be cut using a laser, however it won’t give projects flame-polished edges.

Another form of acrylic found in laser engraving is referred to as extruded acrylic, which is formed into sheets by a machine. Extruded acrylic is usually cheaper than cast acrylic as it is formed through a higher-volume manufacturing technique. However, it will react very differently with all the laser engraving machine. This kind of acrylic cuts cleanly and smoothly and creates a flame-polished edge; however, when engraved, it doesn’t produce that frosted look, but instead a clear engraving. So ensure you are using cast acrylic if you prefer a frosted white finish.

Mistake 3: Inconsistent Glass Engraving – Oftentimes, when a Steel Laser Cleaning Machine strikes glass it is going to fracture the top but not engrave deeply or remove the material needed to engrave fully. The fractured glass surface will produce a frosted appearance, but can be rough and chipped depending on the form of glass that is certainly being engraved. While the frosted look is desired, nobody wants a rough surface or chipping.

In order to generate a smooth frosted finish, try incorporating one or a lot of the tips below:

Use a lower resolution, about 300 DPI, that will generate a better result on glass while you separate the dots you might be engraving.

Alter the black in your graphic to 80 % black. Run your laser engraver with Jarvis Dithering (this dithering pattern can be found in Epilog’s print driver), which will help to provide a smooth finish.

Sometimes, applying a thin, wet sheet of newspaper or perhaps a paper towel for the engraving area will help with heat dissipation and improve the engraving process. Just make sure there are no wrinkles inside the paper after it is actually applied. Another way to dissipate heat is to use a thin coat of liquid dish soap for the area you’re engraving – either together with your finger or even a paper towel. Finally, if you can find shards of glass after engraving, polish the region with a non-scratch scour pad.

Mistake 4: Wood Engraving Produces Different Results on the Same Setting – Wood is probably the most laser-friendly materials available not merely because it could be cut quickly, but in addition because it engraves very well. However, different woods have different reactions if they are laser engraved and provide different results. Lighter woods, like cherry or maple, create a nice contrast where laser burns away the wood, while denser woods require more Laser Cutting Service to reduce or engrave.

Grain density may change dramatically depending on the form of wood you might be working with. Cherry, alder, walnut and maple have fairly small veins of grain inside them, while oak has medium to large veins. For instance, if a large square pmupgg engraved into some cherry, it might have got a uniform appearance; the region engraved would be smooth with little variation in height. However, in the event the same square was engraved into a bit of oak, its appearance would vary greatly in height and would have got a non-uniform appearance.

Jinan MORN Technology Co., Ltd. (MORN GROUP) is a leading laser machine manufacturers and exporter in China. We are specialized in fiber laser cutting machine and fiber laser marking machine with 10 years experience.

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Jinan MORN Technology CO., Ltd.
Address:13F, Building 5, Qisheng Mansion,Xinluo Street,High-Tech Zone, Jinan, China, 250101
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