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Electronics Forum / CAD / February 2008gerber question
In a Gerber file if there are no parameter codes RS274D is a block delimiter required before the first function code? In a Gerber file that contains parameter codes if function codes appear before the first parameter code eg. G04, is a block delimiter required before the first one. I also have a problem with the difinition of the Moire aperture macro, it seems incomplete. Ref . rs274xrevd_e.pdf. Bob > In a Gerber file if there are no parameter codes RS274D is a block delimiter > required before the first function code? In a Gerber file that contains [quoted text clipped - 4 lines] > > Bob Why not download a demo version of someones PCBCAD software and make it output Gerber information ? Thats how I wrote mine ! On Feb 22, 4:22 am, "sycochkn" <sycoc...@earthlink.net> wrote: > In a Gerber file if there are no parameter codes RS274D is a block > delimiter [quoted text clipped - 6 lines] > > Bob Why not download a demo version of someones PCBCAD software and make it output Gerber information ? Thats how I wrote mine ! Does it accurately define macro models as a drawing object? The Gerber information is not the problem. Actually I would have to see how the photoplot looks on a machine that uses RS274X. Actually I am going the other way from Gerber to DXF I am trying for an accurate 3d solid model of the pcb. Bob On Feb 22, 4:22 am, "sycochkn" <sycoc...@earthlink.net> wrote: > In a Gerber file if there are no parameter codes RS274D is a block > delimiter [quoted text clipped - 6 lines] > > Bob Why not download a demo version of someones PCBCAD software and make it output Gerber information ? Thats how I wrote mine ! Now I am at the point where I can parse the parameter codes. I ran a gerber file generated by p-cad It has a parameter code that is not listed in my gerber spec. The code is IC is that something specific to a particular photo plotter or just p-cad? Bob |
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