At 12:06 PM 5/26/2006, Brad Velander wrote: > Yes all of the information can be manipulated and derived > through other means but in the end you still have to flip/rotate at > least the Gerber data so it offers no more efficiency than rotating > and flipping the original design for post fabrication > documentation. None except that the Gerber is dumb so you then have > to rely on working with two files (the flipped/rotated Gerber and > the original PCB file) for your full production data rather than > cleanly all encompassed within one file.
Yes, except that it is not true that the gerber import solution offers "no more efficiency," and I suspect also that Mr. Velander did not understand the description. First, flipping the board, when text is involved, involves some complications, which is precisely why this whole topic came up. If we had a "Flip entire design" command, this could be easier, to be sure. However, there are some ... issues ... to be resolved, in particular layer pairing issues. I would not be happy with a Flip command applied to the whole board unless it really did produce an exactly equivalent PCB that, all by itself, could be fabricated and be identical to the original board. But, yes, you can flip a board in various ways, if you don't care about such details as layer sequence, the relationship of mech layers to copper layers, etc. If you are only producing this flipped PCB for the purpose of generating a single drawing, it is a reasonable solution, though I still think it quite possibly takes more labor. Now, as to the proposed process with Gerber. The end result is, contrary to what was implied by Mr. Velander, a single board file with both top and bottom assembly drawings being a part of it. Usually, I placed the bottom assembly drawing adjacent to the top assembly, it is not co-existent; the result is a single assembly drawing showing both top and bottom, instead of separate drawings for each. If separate drawings are desired, the PDF solution described by Mr. Saputelli seems much simpler, or you provide gerber plots, the same, for each assembly drawing. ____________________________________________________________ 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]
