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If you are an accomplished engineer or a beginner maker, learning the appropriate uses of design equipment to avoid pitfalls and mistakes takes time and experience. Every now and then, issues come up that leave designers wondering the things they did wrong or the way that they could do something better. This is true in almost any field and Industrial Laser Cutting Machine engraving is no different.

Knowing ways to avoid these mistakes so they don’t come up again is half the battle. With that in mind, let’s talk about five of the very common mistakes in terms of laser engraving and the ways to prevent them in future projects.

Mistake 1: Engraving Fabric but the Laser Burns through the Material – The initial step in avoiding burning fabric using a laser engraving/cutting machine is to understand which fabrics can withstand the process and at what temperatures. Heartier fabrics such as denim, canvas and leather can withstand higher power settings during engraving. But when it comes to 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 fabric can withstand it, raise the power before you get the results you are interested in.

In terms of direct-to-garment engraving, it is actually useful to lower the dots per inch (DPI) where you engrave. The greater the DPI, the better material will likely be removed. Engraving in a lower DPI helps make sure the laser just slightly vaporizes the 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 really is caused by utilizing the wrong acrylic within the application. 2 kinds of acrylics are usually utilized in laser engraving and both are compatible with different applications. Cast acrylic sheets and objects are made of a liquid acrylic that is certainly poured into molds that may then be set into various styles and sizes. This kind of acrylic is ideal for engraving because it turns a frosty white color when engraved, making it appropriate for awards and plaques. It can be cut using a laser, nevertheless it won’t give projects flame-polished edges.

The other kind of acrylic used in laser engraving is known as extruded acrylic, which is formed into sheets by a machine. Extruded acrylic is generally less expensive than cast acrylic as it is formed by way of a higher-volume manufacturing technique. However, it can react very differently with the laser engraving machine. This sort of acrylic cuts cleanly and smoothly and creates a flame-polished edge; however, when engraved, it doesn’t produce that frosted look, but alternatively a specific engraving. So make sure you are using cast acrylic if you want a frosted white finish.

Mistake 3: Inconsistent Glass Engraving – Oftentimes, when a Stainless Steel Laser Marker strikes glass it is going to fracture the surface although not engrave deeply or eliminate the material required to engrave fully. The fractured glass surface will produce a frosted appearance, but may 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.

To be able to produce a smooth frosted finish, try incorporating one or a lot of the tips below:

Utilize a lower resolution, about 300 DPI, that can create a better result on glass when you separate the dots you happen to be engraving.

Modify the black inside your graphic to 80 percent black. Run your laser engraver with Jarvis Dithering (this dithering pattern are available in Epilog’s print driver), that will help to supply a smooth finish.

Sometimes, applying a thin, wet sheet of newspaper or even a paper towel towards the engraving area will help with heat dissipation and increase the engraving process. Just be certain 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 towards the area you’re engraving – either with your finger or even a paper towel. Finally, if you will find shards of glass after engraving, polish the area using a non-scratch scour pad.

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

Grain density can transform dramatically depending on the type of wood you are 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 a bit of cherry, it could have a very uniform appearance; the region engraved could be smooth with little variation in height. However, in the event the same square was engraved into some oak, its appearance would vary greatly in height and would have a very 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.

Contact Us:
Jinan MORN Technology CO., Ltd.
Address:13F, Building 5, Qisheng Mansion,Xinluo Street,High-Tech Zone, Jinan, China, 250101
E-mail: inquiry@mornlaser.com
service@mornlaser.com
technic@mornlaser.com
Phone: +86-531-5557-2152
+86-531-5557-2836
Tel: (+86) 531-5557-2337
Fax: +86-531-8869-2337

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