Whether you are an accomplished engineer or a inexperienced maker, learning the proper uses of design equipment to avoid 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 100w Fiber Laser engraving is no different.
Knowing how to avoid these mistakes so that they don’t come up again is half the battle. Bearing that in mind, let’s talk about five of the very most common mistakes with regards to laser engraving and ways to avoid them later on projects.
Mistake 1: Engraving Fabric but the Laser Burns from the Material – The first step in avoiding burning fabric having a laser engraving/cutting machine is 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, it is essential 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, increase the power before you obtain the results you are searching for.
With regards to direct-to-garment engraving, it is useful to lower the dots per inch (DPI) in which you engrave. The greater the DPI, the better material will be removed. Engraving with a lower DPI helps make sure the laser just slightly vaporizes the very 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 Produce a Frosty White Engraving – Probably, this really is caused using the wrong acrylic inside 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 made of a liquid acrylic that is certainly poured into molds that will then be set into various shapes and sizes. This sort of acrylic is great for engraving since it turns a frosty white color when engraved, rendering it suitable for awards and plaques. It could be cut having a laser, nevertheless it won’t give projects flame-polished edges.
The other form of acrylic utilized in laser engraving is known as extruded acrylic, that 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 with the laser engraving machine. This type 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 precise engraving. So make sure you are using cast acrylic if you need a frosted white finish.
Mistake 3: Inconsistent Glass Engraving – Oftentimes, whenever a Economical Laser Marking Metal Machine strikes glass it will fracture the top but not engrave deeply or take away the material required to engrave fully. The fractured glass surface will generate a frosted appearance, but may be rough and chipped depending on the type of glass that is certainly being engraved. Whilst the frosted look is desired, nobody wants a rough surface or chipping.
So that you can produce a smooth frosted finish, try incorporating one or several of the tips below:
Use a lower resolution, about 300 DPI, that will generate a better result on glass when you separate the dots you happen to 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 can help to supply a smooth finish.
Sometimes, applying a thin, wet sheet of newspaper or even a paper towel towards the engraving area may help with heat dissipation and improve the engraving process. Just make sure there are no wrinkles in the paper after it really is applied. An additional way to dissipate heat is to use a thin coat of liquid dish soap to the area you’re engraving – either with your finger or perhaps a paper towel. Finally, if there are shards of glass after engraving, polish the area 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 only because it can be cut very easily, but also as it engraves very well. However, different woods have different reactions when they are laser engraved and provide different results. Lighter woods, like cherry or maple, create a nice contrast in which the laser burns away the wood, while denser woods require more Galvanized Sheet Cutter to reduce or engrave.
Grain density may change dramatically depending on the type of wood you might be dealing with. Cherry, alder, walnut and maple have fairly small veins of grain inside them, while oak has medium to large veins. For example, when a large square pmupgg engraved into a bit of cherry, it could have got a uniform appearance; the area engraved would be smooth with little variation in height. However, when the same square was engraved into a piece 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
E-mail: [email protected]
Tel: (+86) 531-5557-2337