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The steps and precautions of plexiglass laser engraving

by:UNQ     2021-04-03
Plexiglass is the most commonly used engraving material after wood. It is easy to cut and engrave. It comes in a variety of shapes and sizes and relatively low cost. There are two production processes for plexiglass: casting and rolling. The laser engraving machine mainly uses casting to produce plexiglass, because the frosting effect produced by laser engraving is very white, which is in sharp contrast with the original transparent texture. The plexiglass produced is still transparent after laser engraving, without a sufficient contrast effect. When buying plexiglass, it is necessary to emphasize to the dealer that it should be of high purity, otherwise the materials bought back may melt during engraving or cutting.

  Carving  Under normal circumstances, plexiglass adopts back carving method, that is to say, carving from the front and viewing from the back makes the finished product more three-dimensional. When engraving on the back, please mirror the graphics first, and the engraving speed should be fast and the power should be low. If the power is too high during engraving, uneven stripes will appear on the bottom surface. If you want to engrave deeper, try engraving several times. In the case of back carving, for partial coloring, you should first sculpt the off-color part deeper, and then use flame polishing, before you can fill in the color. If it is not polished, the color seen from the front will not be uniform.  Cutting    plexiglass is relatively easy to cut. If the customer's requirements are not high, it can be delivered after cutting without flame polishing. Otherwise, a blowing device should be used when cutting to improve the quality of the cut. When cutting plexiglass over 8mm, large-size lenses should be replaced.   Note: When cutting plexiglass, the operator must not leave, there may be flames during cutting.  Fill color   can use acrylic paint, other paints may damage the finish of plexiglass!  Clean  After engraving, you can use a damp cloth to clean the surface.

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