Electronics Computer-Aided Design gerber question

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Subject Author Date
gerber question sycochkn 02-21-08
Posted by sycochkn on February 21, 2008, 11:22 pm
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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



Posted by Marra on February 23, 2008, 7:01 pm
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> In a Gerber file if there are no parameter codes RS274D is a block delimit=
er
> required before the first function code? In a Gerber file that contains
> parameter codes if function codes appear before the first parameter code e=
g.
> 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

Why not download a demo version of someones PCBCAD software and make
it output Gerber information ?
Thats how I wrote mine !

Posted by sycochkn on February 23, 2008, 8:37 pm
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> 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

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



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