If you are a proficient engineer or a beginner maker, learning the appropriate uses of design equipment to prevent pitfalls and mistakes takes time and experience. Every once in awhile, 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 any field and Laser Rust Removal Handheld engraving is no different.
Knowing how to prevent these mistakes so they don’t appear again is half the battle. Bearing that in mind, let’s talk about five of the very common mistakes with regards to laser engraving and ways to prevent them in future projects.
Mistake 1: Engraving Fabric nevertheless the Laser Burns through the Material – Step one in avoiding burning fabric having a laser engraving/cutting machine is always to understand which fabrics can withstand this process and at what temperatures. Heartier fabrics like denim, canvas and leather can withstand higher power settings during engraving. But with regards 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 in case the material can withstand it, increase the power before you have the results you are searching for.
In terms of direct-to-garment engraving, it really is helpful to lower the dots per inch (DPI) at which you engrave. The greater the DPI, the more material will likely be removed. Engraving with a lower DPI helps ensure the laser just slightly vaporizes the best layer and doesn’t burn entirely with the fabric. Most fabric engravings do fine at 150 to 300 DPI.
Mistake 2: Acrylic Doesn’t Create a Frosty White Engraving – Most likely, this really is caused using the wrong acrylic inside the application. Two kinds of acrylics are generally found in laser engraving and both are suitable for different applications. Cast acrylic sheets and objects are made from a liquid acrylic which is poured into molds that may then be set into various styles and sizes. This kind of acrylic is great for engraving since it turns a frosty white color when engraved, rendering it suitable for awards and plaques. It can be cut with a laser, but it won’t give projects flame-polished edges.
One other kind of acrylic used in laser engraving is called extruded acrylic, which can be 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 using the laser engraving machine. This type of acrylic cuts cleanly and smoothly and produces a flame-polished edge; however, when engraved, it doesn’t produce that frosted look, but rather a specific engraving. So ensure you are using cast acrylic if you want a frosted white finish.
Mistake 3: Inconsistent Glass Engraving – Oftentimes, each time a Raycus Fiber Laser 20w strikes glass it is going to fracture the top however, not engrave deeply or eliminate the material needed to engrave fully. The fractured glass surface will create a frosted appearance, but could be rough and chipped depending on the form of glass which is being engraved. As the frosted look is desired, no one wants a rough surface or chipping.
So that you can create 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 as you separate the dots you are engraving.
Alter the black in your graphic to eighty 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 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 within the paper after it really is applied. An additional way to dissipate heat is to apply a thin coat of liquid dish soap towards the area you’re engraving – either along with your finger or even a paper towel. Finally, if there are shards of glass after engraving, polish the region having 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 could be cut effortlessly, but also as it engraves perfectly. However, different woods have different reactions when they are laser engraved and provide different results. Lighter woods, like cherry or maple, produce a nice contrast in which the laser burns away the wood, while denser woods require more Laser Drawing Machine to reduce or engrave.
Grain density can transform dramatically depending on the type of wood you are utilizing. Cherry, alder, walnut and maple have fairly small veins of grain in them, while oak has medium to large veins. For example, in case a large square pmupgg engraved into a piece of cherry, it would have got a uniform appearance; the region engraved will 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 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.
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