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August 12th, 2009 admin Leave a comment Go to comments

Heart Engraved

Laser engraving screen printers the opportunity to

find out about the features and functions of laser engravers, what applications support machines, and how they can be used with thescreen-printing process.

laser engraving systems can be a valuable addition and beneficial to each screen-printing shop, screen printer, provides the opportunity to decorate the substrate material and that they may not have previously considered or device they can not support. laser cutting and engraving systems can be used in a variety of materials. However, identifying potential applications can be a challenge. This article will discuss how this tool works and the benefits they can bring to the screen-printing operation.

Technology

The most charged CO2 laser engravers to produce the right image and detail in a very high rate of speed. they are generally referred to as the xy laser system or laser cabinet, refer to the x and y railroad tracks along the assembly moving the laser and the fact that the system is closed (figure 1). overall throughput of the machine depends on the power output (watts), speed, measured in entry / second (ips), and most importantly, the acceleration of the movement engraving machine.

several lasers on the market specializing in one function over another. for example, one system specifically designed for cutting material into a vector to 1.5 thick and has a large table size, which makes it suitable for someone who mainly do a lot of cutting. to most businesses, it s important to have a machine that can handle many different jobs as possible. Therefore, by using a laser that can be carved in marble raster and then vector cutting acrylic is very important for those who need to maximize their resources.
Figure 1 laser engraving equipment
laser engravers CO2 can be used to decorate a variety of materials, including acrylic, leather, cloth, marble, rubber, and most plastics. industrial lasers, including nd +: yag and nd +: yv04 system, can be used to mark the raw metal.

CO2 laser is the most common systems in the market because it can cut carvings and carved in acrylic, wood, marble, leather, cloth, plastic, and even anodized or coated metal. CO2 segment, there are metal and glass tube CO2; each with advantages.

glass tube tends to work both for vector cutting and, at the same time, producing smooth, clean raster image. glass tube, which includes housing elements of glass filled with CO2, tended to show less pulse from a metal tube. because of fluctuations in the power minimized, vector cut out clean, and raster images showed less trace of appeal. as large as this sounds, the main deficiency tube glass is the fact that age is much shorter than the metal tube. so that the cost of having the machine by running a glass tube as you need to frequently replace the laser tube. concern Related is the machine downtime occurs when a tube must be replaced.

metal tube, on the other hand, tend to show fluctuations and pulsed power. still, adjust Raster and resolution settings can produce very professional, clean image raster and vector wounds. The main attraction of metal laser tube is age. Average life 20,000-35,000 hours of use. that the amount of up to eight hours a day at 100% power, seven days a week, for seven years, if the tube only lasts for 20,000 hours. but the tube will often last longer from it.

also available is a nd +: yag and nd +: yv04 laser. This laser is designed for those who want to mark the raw (uncoated) metal and therefore, they are usually again found in the field of manufacturing and high-end technology companies. This laser operates differently from the standard xy laser system that they use a lens to direct the galvo laser. because of this configuration, the laser can carve out much faster than the system xy; However, the work area is usually much smaller.

to use this system, operators The first is to create or import images to standard graphic design programs. after the drawing is ready, the operator using the command sprint program to open the driver for carving, which opens the option Additional columns for engraving pictures.

ability and choice of laser engraver highly dependent on the driver. at this stage, the user can select the style and raster resolution, set home position, and adjust the power and speed settings. some drivers even allows users to adjust the sharpness of the edge of the field and engraved for applications such as rubber stamps. then a user enters into the machine the substrate, usually to the upper left corner of the table, which is generally used as a home position and is the starting point of the laser. after the laser focus the material (most machines offer auto-focus function), push the start button and the user fires a laser to go.

some ability

most systems capable of cutting and engraving functions. when choosing a laser, it s important to consider the two functions, you'll need most often, because some systems can perform a function better than others. power plays a big role in how well the machine will work. when it comes to photo engraving, 30 - or 40-watt laser will usually suffice. However, when it comes to cutting, especially with thick material, you may consider a laser range 60-100 watts, or even 200 watts. You need more power to cut completely through the material, while in carving you cut to a depth of only a few millimeters.

machines that use a higher wattage more doors would open. not only will be able to cut or carve out more material, but you also will do much more quickly and neatly than you would with a low-watt machine. Therefore, when purchasing a laser engraver The new, consider buying one that has a higher wattage than what you think you might need. This will give you room to expand and take your job may not be complete with low-powered lasers. buy a machine with room to grow simpler and usually cheaper than trying to upgrade your machine to a level that more watts to the bottom line.

opportunity to screen printers

laser engraving system allows users to etch extremely fine and detailed graphics (including 4-pt type) into the wood, rubber, or material of carbon-based materials to create a stencil, which can then be used in screen printing applications. laser engraver can also be used to cut the printed image.

Another creative use of 3d laser engraving engraver involved and then run a piece of carved though flatbed printer. it will give you piece of engraved color, depth, and a unique look.

CO2 laser marking on various materials, such as acrylic, leather, fabric, denim, marble, rubber, and most plastics (Figure 2). However, no marking or laser cut metallic materials. This because the laser beam will reflect directly to the metal surface, without effect for the material at all. but if the metal was painted, coated, or anodized, laser will remove the top layer to expose the metal underneath. result sharp, crisp marking the ideal for plaques and trophies.

Figure 2 applications for laser engraving
laser engraving systems can be used to etch the surface of various materials, as well as ablate the surface layer of the substrate. depending on material thickness and laser power, some can also support full through cutting and contour cutting of printed images.

laser engravers are usually equipped with Windows-based drivers. users can choose their own graphics-editing program. most laser engravers serve only as a printer, so no special software required. graphics program used to edit images for laser engraving include coreldraw, autocad, adobe illustrator, and adobe photoshop. You must use software you want, but must be able to work effectively with the file type you normally use. some programs may work very well with a bitmap image but not can process vector images. Other applications are written specifically for laser engraving can also be used.

some systems offer the ability to contour cut printed graphics based on the original digital design files. This system uses an integrated camera to recognize the contour lines of an image and cut. some laser engravers ccd camera offers an optional module which allows users to perform precise contour cutting. using a laser to cut open a really new world of possibilities. not only be able to cut the contour, but You'll also be able to cut around vector image details or even carved into the material as well. with a laser, you are not limited to the outer perimeter of the contour cutting alone.

some features of laser engravers exclusive functions, such as 3d engraving, which allows users to carve deeply into the wood or acrylic, resulting in multi-dimensional effect (figure 3). Other functions include a rubber stamp mode to create stamps and rotary attachment to engrave on cylindrical objects such as cups or vases. also, the system is designed with front and back door pass-through offers a virtually unlimited heights, allowing users to take jobs they might otherwise turn away. This feature is ideal for those who want to carve out a long object, like a baseball bat, gun stocks, and wood panels.

3 images carved in three dimensions
some support system 3d laser engraving engraving on various materials. function allows users to create a rubber stamp and decorate cylindrical objects.

consideration

screen printer must keep several things in mind when investigating cutting or laser engraving system for their stores. First, test the system's engraving or cutting quality. with so many laser engraving systems in the market, it may be difficult to choose one that best suits your needs. also, many people want to shop around for the lowest price. though buying cheap laser may be good for your wallet, it is probably not the best decision in the long run. Keep in mind that not all engines are created equal, and like the old adage running, you get what you pay for.

The main things to consider when assessing a laser engraver, including motors, rail system, drivers, and the laser tube, as well as technical services and warranties offered by the manufacturer. motors in the laser engraving system is very important in making precise cuts. if the motor lost a place, it can ruin a job carvings, especially if the job requires past some of the same region. dc servo motor is the best and provide consistent and accurate cuts.

the railway system should provide smooth and slick movement. some systems use low-maintenance movement of linear bearing system to ensure easy and smooth operation. driver is another important component that determines flexibility and functionality of the equipment. drivers must be easy to navigate and operate. offers more features, more choice and control you have over your work. finally, remember that the laser tube is the heart and soul of each laser engraver. make sure that the tube is from a source that has a good reputation. stay away from off-brand tubes.

one of the most ignored aspects of a laser engraver is technical support. laser engravers very complicated piece of equipment. if one part fails, who would you turn to ask for help? make sure your dealer will be able to help you if you ever need service. also check to see what kind of offers a factory warranty. some assurance longer than the others. know the length of the warranty and determine exactly what the cover. wear-and-tear items are not covered under warranty, so be sure to check price of spare parts.

consideration should focus on more than just price, features, and warranty. also ask yourself the following question: is the output is correct to be used to produce stencils? we need a better output quality? is a consistent output quality? whether there are hidden costs for training and maintenance? will have chemical reactions with the materials that we are planning to process? dangerous chemical byproducts can damage the machine and endanger the operator. These byproducts can be created when working with materials such as PVC or Teflon.

in the end, be sure to research and do your homework. laser engraving system is one of the best investments you can make your business. as long as you know what your needs and understand what the system can and can not do, you II are on the road to a profitable future cutting and engraving laser.

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