Homebrew PCBs

At 03:16 PM 6/5/02 -0700, Randy Knutson wrote:

>Hi:
>  I was wondering if anyone knew how to invert a printed circuit board 
> image? I am using protel 99se and I can print a positive of the image 
> just fine but I am trying to find a way to invert this image turning it 
> into a negative. Protel allows you to export an image as a windows media 
> file but when I do this and take it into an image editing program such as 
> paint much resolution is lost. I am trying very hard to avoid the process 
> of printing, scanning and reprinting. Any suggestions would be greatly 
> apprecitated!
>Thanks,
>Randy Knutson

There are several solutions.

1) Print artwork files to disk as HPGL and use PrintGL 
<http://www.concentric.net/~ravitz/> to do what you will with them.  This 
is the method I use.

2) Print artwork files to disk as Gerber and use one of the freebie Gerber 
viewers to print the file.  I *think* they can do a negative but I'm not 
sure.  Look for GCprevue from <www.graphicode.com> or ViewMate 
<www.lavenir.com> i

I think highly of Cary Ravitz's PrintGL - so much so that I purchased a 
licence several years ago.  I use it several times each week.  Do note that 
the software is not crippled in any way - it works the same if you pay for 
it or not.  Only your karma knows the difference!

dwayne

--
Dwayne Reid   <dwayner@...>
Trinity Electronics Systems Ltd    Edmonton, AB, CANADA
(780) 489-3199 voice          (780) 487-6397 fax

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