The laser marking machine is a kind of matching laser generator, which is controlled by computer software and combined with the focusing and deflection principles of optical lenses to project the laser onto the product surface. According to the drawings and parameters set by the software, the controllable laser makes the product surface discolor or vaporize, forming permanent marks. It is called laser marking machine or laser engraving machine, laser machine, etc. I won’t make too many statements here.
A bitmap image, also known as a dot matrix image or a raster image, is composed of a single point called a pixel (picture element). To put it more generally, the pictures taken by our digital cameras, mobile phones, and the pictures cut by the computer screen can be called bitmaps. We can simply draw an equal sign: a bitmap is a picture, a photo.
Most of the most common applications of laser marking machines are vector graphics. To put it simply, vector graph is a graph composed of points, lines and other closed curves drawn by CDR, CAD and other drawing software. It does not distort with the enlargement or reduction of the graph, and has nothing to do with the resolution. Only this kind of graph, we can set filling parameters and marking parameters on the laser marking machine. Better marking effect can be controlled. While the laser marking machine prints bitmap, all the marking software on the market at present. When we import the bitmap into the software, the software will disperse it into points of similar resolution according to its own arithmetic function to complete laser marking. The principle is the same as that of black-and-white TV imaging. The current bitmap laser marking is also unable to complete color marking. After the color picture is imported into the software, the software will convert it into a black-and-white bitmap, automatically allocate the light output energy of the laser according to the proportion of black and white in the picture, and complete the dark and light laser on the material surface to form a black-and-white picture.
After popularizing the professional knowledge of laser marking machine printing photos, we will explain how to set up the software. Let’s take the most commonly used golden orange software as an example:
First, open the software and import the picture, adjust the size of the picture according to the area of the material we want to print, and set the DPI of the picture to be fixed 300 (DPI), as shown in the picture:
Here we need to know that the laser is the color of the surface of the vaporized material, either forming a dark color or exposing the color of the material below the surface material. We must first judge the characteristics of the material to be made. For example, the black metal business card I am going to make now has a black paint on the surface, and the silver shiny metal color below after the excitation. To make the image of longevity, we should reverse the vaporization of other areas and leave the portrait part, So check the (reverse) option at this time.
The grayscale and expansion buttons are mainly used to adjust the black-and-white contrast of the picture. Here, we need to adjust it according to the background color difference of the selected picture and the parameter debugging test.
(DOT). If the dot is checked, the image will be collected and imaged in dots. There will be no reflection and discoloration, but the resolution will be reduced.
After setting the picture, the setting speed of the laser parameters on the right side of the software is generally about 1000. Turn down the power first, and test 35%. If the color is not clear enough, increase the power, and use the low frequency of 30.
Printing bitmap by laser marking machine is a great test of the operator’s familiarity with software and control of material characteristics. If we want to be engaged in printing photos on the customer’s mobile phone, because there is no sample material for debugging, it needs to be formed at one time, which is very challenging. There is also a need to master some image processing software, such as PS. after all, the photos are tetragonal, It would be attractive if it could be processed into a heart shape or other patterns. Therefore, entrepreneurs who want to engage in laser marking machines to print photos for customers’ mobile phone cases must understand these. It is still very difficult. I hope these answers can help you.
