Whether you are a proficient engineer or a novice maker, learning the appropriate 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 almost any field and Laser Paint Removal Cost engraving is no different.
Knowing how to avoid these mistakes so they don’t show up again is half the battle. Bearing that in mind, let’s discuss five of the most common mistakes in terms of laser engraving and ways to avoid them in the future projects.
Mistake 1: Engraving Fabric nevertheless the Laser Burns through the Material – Step one in avoiding burning fabric using 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 when it comes to 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 when the material can withstand it, increase the power up until you have the results you are looking for.
When it comes to direct-to-garment engraving, it is helpful to lower the dots per inch (DPI) where you engrave. The greater the DPI, the greater material will likely be removed. Engraving with a lower DPI helps ensure the laser just slightly vaporizes the top layer and doesn’t burn entirely with 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 is caused by utilizing the wrong acrylic within the application. 2 kinds of acrylics are generally used in laser engraving and both are suitable for different applications. Cast acrylic sheets and objects are made of a liquid acrylic that is poured into molds that can then be set into various sizes and shapes. This kind of acrylic is perfect for engraving since it turns a frosty white color when engraved, which makes it ideal for awards and plaques. It may be cut using a laser, however it won’t give projects flame-polished edges.
Another form of acrylic found in laser engraving is called extruded acrylic, that is formed into sheets by way of a machine. Extruded acrylic is usually more affordable than cast acrylic as it is formed by way of a higher-volume manufacturing technique. However, it will react very differently with 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 alternatively a specific 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 Fiber Laser Marking Machine strikes glass it is going to fracture the outer lining although not engrave deeply or take away the material needed to engrave fully. The fractured glass surface will create 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.
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 can generate a better result on glass when you separate the dots you happen to be engraving.
Change the black inside your graphic to 80 percent black. Run your laser engraver with Jarvis Dithering (this dithering pattern may be found in Epilog’s print driver), which will help to supply a smooth finish.
Sometimes, applying a thin, wet sheet of newspaper or a paper towel for the engraving area can help with heat dissipation and enhance the engraving process. Just be certain there are no wrinkles within the paper after it is actually applied. A different way to dissipate heat is to use a thin coat of liquid dish soap to 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 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 just because it could be cut effortlessly, but additionally as it engraves adequately. 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 Handheld Laser Printer to reduce or engrave.
Grain density may change dramatically depending on the type of wood you might be working with. Cherry, alder, walnut and maple have fairly small veins of grain in them, while oak has medium to large veins. As an example, when a large square pmupgg engraved into some cherry, it might have a very uniform appearance; the location engraved could be smooth with little variation in height. However, if the same square was engraved into some 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
E-mail: [email protected]
Tel: (+86) 531-5557-2337