Full Version: Color Fill -to- Bit Fill
From: MBSI (MBSI-GRAPHICS) [#1]
25 Oct 2006
To: ALL
I want to bit fill a color area.
I'm using an Epilog and do NOT want the color to be translated into
a power intensity (depth of "burn"). I want the color to be translated
into a bit-density dots-per-inch at the chosen power setting for the
engraving.
PhotoGrav does this for greyscale bitmaps.
Is there a way to greyscale fill a "color" in Corel?
Thanks in advance.
Graig
From: Harvey only (HARVEY-ONLY) [#2]
25 Oct 2006
To: MBSI (MBSI-GRAPHICS) [#1] 25 Oct 2006
If you want a true grayscale select that in the color mode of Paint.
If what you are looking for is an engravable dot pattern for the laser it is slightly more involved.
Bring it into Draw, resample it to either 500 or 1000 DPI, (assuming a 500 PPI on the laser).
Select conversion to black/white and use the fixed 8X8 setting.
Do not resize after the conversion.
From: MBSI (MBSI-GRAPHICS) [#3]
25 Oct 2006
To: Harvey only (HARVEY-ONLY) [#2] 25 Oct 2006
Going to give it a try this evening.
Regards,
Graig
From: logojohn [#4]
25 Oct 2006
To: MBSI (MBSI-GRAPHICS) [#1] 25 Oct 2006
I know what you are wanting to do.
It is a very useful feature.
Our Epilog Radius using the xp driver does exactly that from the Xenetech software. Haven't tried it from coreldraw.
There are limited shades of gray but you can even make text ( or engraveable logos with a pen width) a color such as yellow or lime green.
The original driver mapped the speed and power to the color.
There was no photo mode.
When they released the XP driver, the color mapping no longer worked
but they added a photo mode.
With the photo mode selected, regular true type fonts or closed filled objects of a lighter color would laser with a spread of dots instead of solid lines. A lighter color of yellow would be widely spaced on down to dark brown would be almost solid. You could also just send a greyscale bmp without converting.
A red or similar color removed any trace of lines on acrylics and produced a smooth frosted image.
It is most useful on crystal and glass. The lime green or magenta lasers optical crystal with no chipping. The yellow color will even work on touchy leaded crystal.
You didn't have to convert anything, just send to the laser.
---
We got a Xenetech laser a couple months ago. I can do acrylic just as good but haven't yet figured out how to get text on crystal to come out as good without any chipping so still use the Epilog for that.
You have to convert greyscale bmps with the builtin software first similar to photograv. But I haven't found any way to do that with the text short of saving it as a bmp and then processing. Lot of extra steps.
EDITED: 25 Oct 2006 by LOGOJOHN