I guess I don't do things the way the rest of you do. I create an assembly drawing that looks exactly the way I want it to in Allegro and output my gerber with 0 width lines for the assembly and drill drawings. Gerber tools don't "tend" to do anything with the data. They import what they are given and present it. After I import the gerbers I only have to mirror the board part and leave the borders and notes alone on the assembly back layer. I use autocad to do mechanical drawings and such, not assembly drawings. The stuff I end up with doesn't need to be messaged in any way to be workable. That would be the only reason to import it into autocad, in my opinion. I hope I am not opening a can of worms here, I just see it a different way is all.
Kevin McCowan Sr. PCB Designer TSI Telsys
The funniest thing to consider is the way mechanical guys view boards verses the way PWB guys view boards... They look at the board as having "sides" and we view the boards as a single plane and flip the components. Gee, no wonder there is so much confusion in exchanging CAD files. I went through this drill with every new mechanical guy we ever used at our last company. Sometimes the light never went on.-----------------------------------------------------------
I tend to agree with others that flipping the DXF is best done in AutoCAD... and frankly working with gerber files for Assy drawings is not the best approach... gerbers tend to create lines with width, where as mechanical drawing tools tend to create sharp easy to read/plot drawings.
-----Original Message----- *From:* Mark Salberg [mailto:msalberg@xxxxxxxxxxxx] *Sent:* Tuesday, September 28, 2004 10:58 AM *To:* icu-pcb-forum@xxxxxxxxxxxxx *Subject:* [PCB_FORUM] Re: Mirror dxf file?
You hit it right on the head Mitch! Some of us used to do it in AutoCad, but our mechanical guy uses both ProE and Sim Cad. When importing our "mirrored" bottom side (text backwards) dxf file into Sim cad...it would "skew" the ref des over parts. And supposedly there was a problem mirroring in ProE. Hard to believe!
We just had another mech guy prove that you can mirror in ProE! Sorry for any confusion, but somebody here needs a ProE lesson I guess.
Thanks, Mark
Mitch S. Morey wrote:
Agreed. If, in fact, you're OUTPUTTING the DXF file to a mechanical package, leave it alone, and mirror it in the mechanical tool. It's simple to do in ANY mechanical package.
Good day.
I don't know the answer to your question, but mirroring is so easy and effective in autocad, that's where I do it. Another thing I do in autocad is hatch the pins for the assembly drawing, as they come over unfilled. To do this easily I export the pins on their own autocad layer, so that I can grab them all to hatch solid.
Patrick Westfeldt, Jr. North Boulder Circuit Design
-----Original Message----- From: Mark Salberg [mailto:msalberg@xxxxxxxxxxxx] Sent: Tuesday, September 28, 2004 8:52 AM To: Cadence User Group Subject: [PCB_FORUM] Mirror dxf file?
Hello all, Is there a way to mirror a dxf file output? We used to create a plot file, mirror on import to .brd, then dxf out. This creates a DXF on pen layers. We want to mirror all of the bottom side components, board outline, etc...for the bottom side assembly drawing. But also would like to output the DXF with real layers instead of pen layers.
Thanks, Mark
____________________________________________________________________________ _ Scanned by IBM Email Security Management Services powered by MessageLabs. For more information please visit http://www.ers.ibm.com ____________________________________________________________________________ _ ----------------------------------------------------------- To subscribe/unsubscribe: Send a message to icu-pcb-forum-request@xxxxxxxxxxxxx with a subject of subscribe or unsubscribe
To view the archives of this list please login at //www.freelists.org. Our list name is icu-pcb-forum or go to //www.freelists.org/archives/icu-pcb-forum/
Problems or Questions: Send an email to icu-pcb-forum-admins@xxxxxxxxxxxxx
Want to post a job listing ? DON'T DO IT HERE! Better yet, join our jobs listing forum.
SUBSCRIBE: icu-jobs-forum-subscribe@xxxxxxxxxx POST: icu-jobs-forum@xxxxxxxxxx -----------------------------------------------------------
----------------------------------------------------------- To subscribe/unsubscribe: Send a message to icu-pcb-forum-request@xxxxxxxxxxxxx with a subject of subscribe or unsubscribe
To view the archives of this list please login at //www.freelists.org. Our list name is icu-pcb-forum or go to //www.freelists.org/archives/icu-pcb-forum/
Problems or Questions: Send an email to icu-pcb-forum-admins@xxxxxxxxxxxxx
Want to post a job listing ? DON'T DO IT HERE! Better yet, join our jobs listing forum.
SUBSCRIBE: icu-jobs-forum-subscribe@xxxxxxxxxx POST: icu-jobs-forum@xxxxxxxxxx -----------------------------------------------------------
-----------------------------------------
Stay ahead of the information curve.
Receive PCB news and jobs on your desktop daily.
Subscribe today to the PCB CafeNews newsletter.
[ http://www10.pcbcafe.com/nl/newsletter_subscribe.php ]
It's informative and essential.
-----------------------------------------------------------
To subscribe/unsubscribe: Send a message to icu-pcb-forum-request@xxxxxxxxxxxxx
with a subject of subscribe or unsubscribe
To view the archives of this list please login at //www.freelists.org. Our list name is icu-pcb-forum or go to //www.freelists.org/archives/icu-pcb-forum/
Problems or Questions: Send an email to icu-pcb-forum-admins@xxxxxxxxxxxxx
Want to post a job listing ? DON'T DO IT HERE! Better yet, join our jobs listing forum.
SUBSCRIBE: icu-jobs-forum-subscribe@xxxxxxxxxx POST: icu-jobs-forum@xxxxxxxxxx -----------------------------------------------------------
_____________________________________________________________________________ Scanned by IBM Email Security Management Services powered by MessageLabs. For more information please visit http://www.ers.ibm.com _____________________________________________________________________________
_____________________________________________________________________________ Scanned by IBM Email Security Management Services powered by MessageLabs. For more information please visit http://www.ers.ibm.com _____________________________________________________________________________
To view the archives of this list please login at //www.freelists.org. Our list name is icu-pcb-forum or go to //www.freelists.org/archives/icu-pcb-forum/
Problems or Questions:
Send an email to icu-pcb-forum-admins@xxxxxxxxxxxxxSUBSCRIBE: icu-jobs-forum-subscribe@xxxxxxxxxx POST: icu-jobs-forum@xxxxxxxxxx -----------------------------------------------------------
