Universal Laser Systems X-600 Guía para resolver problemas descargar pdf (Pagina 37)

OPERATION AND PRINTER DRIVER CONTROLS

Section 3-12

There are two ways to use this feature. The first method is used produce an engraving that has a

contoured depth, giving it a three dimensional feel. It is used in combination with grayscale bitmaps

by automatically assigning laser power levels to the shades of gray of the bitmap WITHOUT

converting the image to a halftone. These power settings are based off the setting you entered for

the color black, in the printer driver. The darkest shades of gray (black) will be assigned the value of

the setting for the black color. The lightest shade of gray (white) will automatically be assigned a 0%

power. All other shades of gray that fall between black and white will automatically be assigned an

appropriate power level that matches the darkness of the color. The engraving will appear “3D”

because the depth of the engraving will vary according to the image. Sometimes it takes several

passes to create enough relief in the engraving to get the desired results.

Special 3D software is required to produce the type of grayscale images that are compatible with this

mode. You cannot simply use ANY grayscale bitmap to produce a “3D” effect. Please contact our

Applications Department for the latest 3D software recommendations.

The second way to use the 3D feature is to engrave any photograph, lightly onto the surface of hard

materials such as black marble, anodized aluminum, painted brass, micro-surfaced engravers plastic,

etc., to produce unbelievable photographic quality. Using the appropriate materials and settings, the

end result is an engraving that looks more like a photograph than a halftone or diffusion dithered

image does. To use the 3D feature in this method you must first set up a few things.

Choose Your Material

The best material to use is one that has the highest contrast such as black anodized aluminum,

black marble, or black cored engravers plastic with a white micro surfaced coating. While other

materials may work ok, they might not produce the highest quality.

Establishing Nominal Power

Choose your %Speed and you Image Density settings. Set the PPI to 1000 but don’t set the

%Power setting just yet. The objective is to use the LOWEST %Power setting that produces the

most contrast such as the whitest (as in black anodized aluminum) or the darkest (as in black

cored engravers plastic with a white micro surfaced coating) results. This is what we call the

“nominal” power setting. Over-powering the material will produce poor results.

In your graphics software, create a series of 5 rectangles that are about ¼ inch high and 6 inches

wide as in the following diagram:

Starting with the top rectangle set the power setting to a value that you know will be too low. For

example, engrave the first rectangle at 5% power, increasing the power for each subsequent

rectangle 5% finishing the series off at 25% power and note the results. Choose the rectangle

that uses the lowest %Power setting to achieve the most contrast. If 25% is not enough power,

then engrave the rectangles once again, this time starting at 25% and incrementing by 5% and so

on.

In this particular example, we’ll say that 20% power looks over-burned but 15% appears under-

burned. Since the material may be sensitive to small power changes, you may need to narrow it

down a bit further. Engrave a new series of rectangles, but this time start the top rectangle at

15% then add 1% for the next rectangle, and so forth, until you find the best setting between 15%

and 20%.

1 2 ... 32 33 34 35 36 37 38 39 40 41 42 ... 73 74

Comentarios a estos manuales

Sin comentarios

Universal Laser Systems X-600 Guía para resolver problemas Pagina 37

Comentarios a estos manuales

Relacionado con productos y manuales para Grabador Universal Laser Systems X-600