I use Ivex WinBoard and I generate my Gerbers with Ivex View. I have always
checked the "Mirror X" check box in the 'Plot' dialog box to be sure one
side is flipped to match the other. I always have to view the files with the
viewer before sending to the fab house- WinBoard is pretty good for the $,
but it doesn't often do a perfect job. The suggestion to place markers on
the board (WinBoard calls them "Targets" - place them once, and they will be
imaged on both sides)is a must also.
I would also look into a new board house. Advanced circuits www.4pcb.com
would have caught this type of error, and notified you before proceeding.

> -----Original Message-----
> From: pic microcontroller discussion list
> [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Peter Foster
> Sent: Monday, November 26, 2001 8:55 AM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: [OT]: Extracting Gerbers from WinBoard
>
>
> Having just spent two weeks on an MP3 project, I have
> discovered that my
> PCBs have been manufacturer back-to-front (mirror image).
> When extracting
> gerbers from Winboard is there something I should look out
> for? How can I
> check it is okay prior to manufacture?
>
> Thanks
>
> Peter
>
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