Hi Alfonso,

You can't make the PCB Editor in AD output Gerber files with holes 
showing.  All of the thru-hole pads will be solid (AD doesn't have 
the ability to specify "donut" pads).

What folks have done in the past to get what you are after, is hand 
edit in CAMTASTIC.  You can change the D-Code "shape" for the desired 
pads from "round" to "donut" and enter the desired hole size.  Be 
aware that tracks terminating in the center of donut pads will at 
least partially overlay any hole you introduce using this method - if 
that's a problem, you need to do more hand editing by pulling the 
track ends back a bit.

Once the editing is done in CAMTASTIC, you can print and/or save the 
modified Gerbers.

With regard to your printer output accuracy, I've had better luck on 
1:1 prints produced on a plotter.  For that reason, I suspect the 
registration and accuracy are related to how the printer drivers 
handle the data, and not to anything inherent in AD.

Regards - Harry


At 08:42 AM 7/17/2007, you wrote:
>-----Original Message-----
>From: Alfonso Baz [mailto:[EMAIL PROTECTED]
>Sent: Tuesday, July 17, 2007 12:43 AM
>To: [email protected]
>Subject: [PEDA] Show Holes in gerbers
>
>
>Hi all
>
>I'm currently working for customers who have AD and they prototype small
>boards in house.
>
>The problem I'm having is that the print output, (File->Fabrication
>Outputs->Final), are not very accurate (regardless of printer type selected)
>
>The tracks entering a fine pitch component print slightly off centre (they
>preview this way also). When I produce gerber files and print those the
>output comes out right.
>
>Unfortunately I can't seem to find a way of producing gerber files with pad
>holes showing for through hole components.
>
>Is there a way of accomplishing this?
>
>
>
>Cheers


 
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