Inverted silk

Zoly wrote:

Hi guys,

 

Is there any existing idea or ULP to easily make inverted (negative) top

silk layer (or any).

Thanks in advance.

 

Zoly

 

 

I export the positive image file - then use a graphics package to invert

the PCB area and print using MS-Paint (only because it allows you to

declare the dpi print so you can get the right scale/size) For graphic

edit I use a geriatric but excellent program - paint shop pro 4...

Anton

I export the positive image file - then use a graphics package to invert

the PCB area and print using MS-Paint (only because it allows you to

declare the dpi print so you can get the right scale/size) For graphic

edit I use a geriatric but excellent program - paint shop pro 4...

Anton

Thanks for your input, I will try out your the paint shop version.

In the mean time, I had trouble with MS-paint (I though about this since it

has the direct inverting function built in), but the fairly large exported

monocolor BMP file to keep the detailed result is continuously crashing the

MS-paint on my "not actually low end PC" (core2 duo 6800 Extreme with 4G

ram, and lots of HDD, fully updated winXP-pro.)

Also I called the board house, and asked them if they could do the inverted

silk, they did not say no, but they stated this will create a huge delay

caused by possible confusion in the CAM department, multi pre-approvals have

to be presented, involving regional sales guy too ......blah.... (not the

easy way)

I am still seeking a possible ULP, that someone might have came across with.

Best Regards,

Zoly

Zoly wrote:

I export the positive image file - then use a graphics package to invert

the PCB area and print using MS-Paint (only because it allows you to

declare the dpi print so you can get the right scale/size) For graphic

edit I use a geriatric but excellent program - paint shop pro 4...

Anton

 

Thanks for your input, I will try out your the paint shop version.

In the mean time, I had trouble with MS-paint (I though about this since it

has the direct inverting function built in), but the fairly large exported

monocolor BMP file to keep the detailed result is continuously crashing the

MS-paint on my "not actually low end PC" (core2 duo 6800 Extreme with 4G

ram, and lots of HDD, fully updated winXP-pro.)

Also I called the board house, and asked them if they could do the inverted

silk, they did not say no, but they stated this will create a huge delay

caused by possible confusion in the CAM department, multi pre-approvals have

to be presented, involving regional sales guy too ......blah.... (not the

easy way)

 

I am still seeking a possible ULP, that someone might have came across with.

 

Best Regards,

Zoly

 

 

Hi Zoly,

Try playing with eagle's export (File - Export - Image) - you can

specify the DPI there, depending on the detail in your pcb, you may be

able to get away with a lower DPI - say 200 or so which will reduce your

file size. From the browse button you can also change the format from

bmp (which is big) to say PNG or Tiff which have lossless compression.

Select the layer you want as per printing. (I use eagle ver 4.16r2)

Remember to set MS-Paint with the same DPI as you export the file with

.. sounds obvious but ...

Hope that helps...

Kind regards

Anton