Universal Laser Systems Laser Platform M-300 Guía para resolver problemas descargar pdf (Pagina 42)

4-16 Computerized Controls

Speed Optimizing

It is advantageous to engrave an object in its longest direction because total engraving time will

be reduced when the motion system has to make fewer stops and starts. If the engraving object

is longer than it is tall, a greater engraving speed can be achieved by rotating the graphic 90

degrees and placing the material in the laser system sideways. Be aware that some graphics

programs do not allow the rotation of bitmaps. In this case, it may be necessary to use bitmap

image processing software to first rotate the bitmap before importing the bitmap into the

graphics program. If the artwork contains engraved objects of the same color with a great deal

of space between them in the engraving direction, processing time can be longer since the laser

must make long strokes to engrave both objects at the same time. To reduce engraving time in

cases like these, use different colors for each of the objects but assign the same power setting

to both colors. This will cause the laser to engrave one object at a time, skipping over all blank

space, which in many cases will reduce engraving time. On the other hand, if the objects are

relatively close together in the engraving direction, then leave them the same color because it

will be quicker to engrave them both at the same time. Experiment with these techniques to

optimize the speed of engraving.

Encapsulated Postscript (EPS) Images

Bitmap images cannot be cut by the laser system only engraved. The only way to have the

laser system cut out or vector a bitmap is to first convert it to a vector file format such as an

EPS. Raster to vector conversion programs are available that trace the bitmap (this only works

well with monochrome bitmaps) and creates a separate EPS vector file. These EPS files can

then be imported into the graphics program and printed out from there. Since tracing programs

have many adjustments, some practice with them is necessary to produce desirable results.

The laser system does not support Encapsulated PostScript (EPS) printing directly. EPS files

can only be edited and printed if they are first imported into a graphics program. However,

since EPS files support engraving and cutting objects, they are therefore useful for transferring

artwork from one graphics program to another. Once an EPS file has been imported into a

graphics program, the objects can be outlined, stretched, rotated, mirrored, filled with different

colors, or anything else desired just as long as your graphics software can edit EPS images. Be

careful when using EPS files in layout software as opposed to true graphics software. Layout

software may allow the placement of EPS files in the artwork but may not actually import and

convert the EPS file to a useful format for the printer driver and therefore may not print correctly.

Please refer to your graphics software’s documentation on whether or not it can edit and print

EPS images to a non-Postscript printer.

Postscript (PS) Images

The laser system is NOT a postscript device. This means that postscript fills, postscript

textures, and especially POSTSCRIPT FONTS WILL NOT be able to print to the laser system.

Sometimes using Adobe Type Manager (ATM) will allow some postscript fonts to print correctly

but most of the time does not work properly.

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Universal Laser Systems Laser Platform M-300 Guía para resolver problemas Pagina 42