Hi Steve, Q2: I've seen this problem with composite layers. It depends on the viewer but is not caused by it. Altium uses two layers to represent filled areas and void. In PCAD this problem appears with TTF text style - for example letters like O,P R D.. which have closed outline are represented with one positive layer (copper filling the whole area) and a negative layer (void inside).
It might be the same in Protel but you'd better ask the tech support. My PCB fab uses CAM350 (if I'm not wrong) and they read only the positive layer. To avoid the problem, they had to remove my text and place their instead. So, be careful with the composite layers. Contact your fab to make sure they can read your gerbers correctly. Fax them a printed copy of your layers just in case (if you don't want to end up with shorted pins and traces). Mira --- Steve Fenton <[EMAIL PROTECTED]> wrote: > Hi folks, > > I'm relatively new to Protel after 10 years+ of PADS > use. They're different, > and neither is perfect. > > One of the good things about PADS is the ability to > extract an IPC-D-356 > netlist from the PCB file itself. This can be > compared with an IPC file > generated from gerbers, and used to check the > gerbers match the original > design. It's saved me from scrap boards more than > once! To be fair, PADS > requires the running of a Visual Basic script. So, > question 1... Is it > possible to generate an IPC netlist from the Protel > PcbDoc file (i.e. not > from Camtastic). > > Question 2 relates to Gerbers on layers with polygon > pours. Any ideas how to > get around the composite layer format? Each gerber > file opens as three > layers in ViewMate - one is the copper, one is the > cut-outs, one is the text > & lines. > > I'm running DXP SP2 build 8.2 on XP Pro SP2. > > Cheers, > Steve > > > ____________________________________________________________ > You are subscribed to the PEDA discussion forum > > To Post messages: > mailto:[email protected] > > Unsubscribe and Other Options: > http://techservinc.com/mailman/listinfo/peda_techservinc.com > > Browse or Search Old Archives (2001-2004): > http://www.mail-archive.com/[email protected] > > Browse or Search Current Archives (2004-Current): > http://www.mail-archive.com/[email protected] > > __________________________________ Do you Yahoo!? The all-new My Yahoo! - What will yours do? http://my.yahoo.com ____________________________________________________________ You are subscribed to the PEDA discussion forum To Post messages: mailto:[email protected] Unsubscribe and Other Options: http://techservinc.com/mailman/listinfo/peda_techservinc.com Browse or Search Old Archives (2001-2004): http://www.mail-archive.com/[email protected] Browse or Search Current Archives (2004-Current): http://www.mail-archive.com/[email protected]
