Whether you are a proficient engineer or a beginner maker, learning the proper uses of design equipment in order to avoid pitfalls and mistakes takes time and experience. Every once in awhile, issues appear that leave designers wondering what they did wrong or the way they could do something better. This is true in every field and Laser Rust Removal Equipment engraving is no different.
Knowing how to avoid these mistakes therefore they don’t appear again is half the battle. Bearing that in mind, let’s talk about five of the most common mistakes in terms of laser engraving and the ways to avoid them in the future projects.
Mistake 1: Engraving Fabric however the Laser Burns from the Material – Step one in avoiding burning fabric with a laser engraving/cutting machine would be to understand which fabrics can withstand the process as well as at what temperatures. Heartier fabrics including denim, canvas and leather can withstand higher power settings during engraving. But in terms of delicate fabrics, you should 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, boost the power up until you have the results you are interested in.
With regards to direct-to-garment engraving, it is useful to lower the dots per inch (DPI) at which you engrave. The higher the DPI, the more material will likely be removed. Engraving in a lower DPI helps guarantee the laser just slightly vaporizes the top layer and doesn’t burn entirely through the fabric. Most fabric engravings do fine at 150 to 300 DPI.
Mistake 2: Acrylic Doesn’t Produce a Frosty White Engraving – Most likely, this can be caused using the wrong acrylic within the application. Two kinds of acrylics are generally found in laser engraving and both are compatible with different applications. Cast acrylic sheets and objects are produced from a liquid acrylic that is certainly poured into molds that will then be set into various shapes and sizes. This type of acrylic is perfect for engraving as it turns a frosty white color when engraved, which makes it suitable for awards and plaques. It could be cut having a laser, however it won’t give projects flame-polished edges.
One other form of acrylic found in laser engraving is referred to as extruded acrylic, which is formed into sheets by way of a machine. Extruded acrylic is normally more affordable than cast acrylic because it is formed via a higher-volume manufacturing technique. However, it can react very differently using 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 rather a clear engraving. So make sure you are using cast acrylic if you need a frosted white finish.
Mistake 3: Inconsistent Glass Engraving – Oftentimes, each time a Laser Marking For Metal Etching strikes glass it can fracture the outer lining but not engrave deeply or eliminate the material necessary to engrave fully. The fractured glass surface will create a frosted appearance, but could be rough and chipped depending on the kind of glass which is being engraved. As the frosted look is desired, nobody wants a rough surface or chipping.
In order to produce a smooth frosted finish, try incorporating one or some of the tips below:
Use a lower resolution, about 300 DPI, which will generate a better result on glass as you separate the dots you might be engraving.
Alter the black in your graphic to eighty percent black. Run your laser engraver with Jarvis Dithering (this dithering pattern can be found in Epilog’s print driver), that will help to supply 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 enhance the engraving process. Just be certain you can find no wrinkles in the paper after it is actually applied. A different way to dissipate heat is to use a thin coat of liquid dish soap towards the area you’re engraving – either together with your finger or perhaps a paper towel. Finally, if there are shards of glass after engraving, polish the location using a non-scratch scour pad.
Mistake 4: Wood Engraving Produces Different Results on the Same Setting – Wood is one of the most laser-friendly materials available not only because it can be cut effortlessly, but additionally because it engraves perfectly. However, different woods have different reactions if they are laser engraved and provide different results. Lighter woods, like cherry or maple, generate a nice contrast where laser burns away the wood, while denser woods require more Laser Cutting Acrylic Equipment to cut or engrave.
Grain density can change dramatically depending on the kind of wood you are dealing with. Cherry, alder, walnut and maple have fairly small veins of grain inside them, while oak has medium to large veins. For example, if a large square pmupgg engraved into a bit of cherry, it would possess a uniform appearance; the area engraved could be smooth with little variation in height. However, if the same square was engraved into a bit of oak, its appearance would vary greatly in height and would possess 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.
Jinan MORN Technology CO., Ltd.
Address:13F, Building 5, Qisheng Mansion,Xinluo Street,High-Tech Zone, Jinan, China, 250101
Tel: (+86) 531-5557-2337