[PCB_FORUM] Re: RS-274X

  • From: "Macindoe, Gary" <Gary.Macindoe@xxxxxxx>
  • To: <icu-pcb-forum@xxxxxxxxxxxxx>
  • Date: Thu, 8 May 2008 09:47:17 -0500

Thanks George, that's what I thought.

 

  

Gary E. MacIndoe
PCB Design Engineer
MTS Systems Hardware Design
Mile High Design Center
2950 East Harmony Road
Fort Collins, CO 80528
Phone: (970) 226-9675
FAX:   (970) 226-9695

amd.com

gary.macindoe@xxxxxxx

________________________________

From: icu-pcb-forum-bounce@xxxxxxxxxxxxx
[mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of
george.h.patrick@xxxxxxxxxxxxx
Sent: Wednesday, May 07, 2008 4:24 PM
To: icu-pcb-forum@xxxxxxxxxxxxx
Subject: [PCB_FORUM] Re: RS-274X

 

 

That's him :)  Haven't seen hide nor hair of him since he retired.

 

Unfortunately, that's right.  All positive layers come out as negative
images if the film control is set for a negative film.

 

Doesn't seem to me that it would be too difficult for Cadence to add an
additional composite additive positive sub-layer to the gerber file in
if you have a positive layer selected for a negative film control, but
they have never done  it (unless it's in 16, I haven't tested for that).
But it is probably no bang for the buck, I think it is increasingly rare
to have title blocks and such on films anyway.

 

-- 
George Patrick
Tektronix, Inc.
Central Engineering, EDS Applications Support
P.O. Box 500, M/S 39-512
Beaverton, OR 97077-0001
* 503-627-5272 (voice)     * 503-627-5587 (fax)
http://www.tektronix.com <http://www.tektronix.com/>     
http://www.pcb-designer.com <http://www.pcb-designer.com/> 
 
"Off-Grid and Proud of it!"

        -----Original Message-----
        From: icu-pcb-forum-bounce@xxxxxxxxxxxxx
[mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of Macindoe, Gary
        Sent: Wednesday, May 07, 2008 14:10
        To: icu-pcb-forum@xxxxxxxxxxxxx
        Subject: [PCB_FORUM] Re: RS-274X

        Hey George,

         

        By predecessor, I bet you mean Don Gillispie (did I spell his
last name correctly?).

        How's Don doing by the way? I worked with him (actually he
supported us in Redmond) for some years at Tek.

         

        I know about the photoplot outline, I used to use one just
outside of the drawing title block.

        So either way, with 274X output, everything becomes negative,
right?

         

        Thanks for the reply.

         

        Regards,

        Gary

         

         

        Gary E. MacIndoe
        PCB Design Engineer
        Fort Collins, Colorado

        amd.com

        gary.macindoe@xxxxxxx

        
________________________________


        From: icu-pcb-forum-bounce@xxxxxxxxxxxxx
[mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of
george.h.patrick@xxxxxxxxxxxxx
        Sent: Wednesday, May 07, 2008 2:59 PM
        To: icu-pcb-forum@xxxxxxxxxxxxx
        Subject: [PCB_FORUM] Re: RS-274X

         

        Gary:

         

        You can also put a photoplot outline area around the stuff you
want visible (Setup >Areas > Photoplot Outline) to get the same effect.
If you do NOT have this area, it ignores anything outside the board
outline (unless you set the bounding box).

         

        My predecessor put in an issue about this when we went to
RS-274x back 6-7 years ago.  They put it in the future-features pile
(otherwise known as the round file) and I guess it remains there to this
day.  I have never attempted to resubmit it.  

         

        -- 
        George Patrick
        Tektronix, Inc.
        Central Engineering, EDS Applications Support
        P.O. Box 500, M/S 39-512
        Beaverton, OR 97077-0001
        * 503-627-5272 (voice)     * 503-627-5587 (fax)
        http://www.tektronix.com <http://www.tektronix.com/>     
http://www.pcb-designer.com <http://www.pcb-designer.com/> 
         
        "Off-Grid and Proud of it!"

                -----Original Message-----
                From: icu-pcb-forum-bounce@xxxxxxxxxxxxx
[mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of Macindoe, Gary
                Sent: Wednesday, May 07, 2008 13:43
                To: icu-pcb-forum@xxxxxxxxxxxxx
                Subject: [PCB_FORUM] Re: RS-274X

                Hey man,

                 

                Thanks for the idea. Yeah, it sort of worked. I set the
Bounding Box to 2100 (mils).

                The gerber for this negative layer now included my
targets and film description box, but they are negative.

                 

                With RS-274D, the negative layers still had the lines
and text of the targets/film description box (of course outside of the
board outline) as positive.

                 

                Thanks again, this may be better than not getting them
at all if I do indeed decide to go to 274X.

                 

                Regards,

                Gary

                 

                 

                Gary E. MacIndoe
                PCB Design Engineer
                Fort Collins, Colorado

                amd.com

                gary.macindoe@xxxxxxx

                
________________________________


                From: icu-pcb-forum-bounce@xxxxxxxxxxxxx
[mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of Man Tran
                Sent: Wednesday, May 07, 2008 2:14 PM
                To: icu-pcb-forum@xxxxxxxxxxxxx
                Subject: [PCB_FORUM] Re: RS-274X

                 

                Gary,

                 

                Try to set Shape Bounding Box in Artwork Control Form
and make sure this number (measure from board's outline) large enough to
cover any lines & text that you want to show.

                 

                -man

                 

                
________________________________


                From: icu-pcb-forum-bounce@xxxxxxxxxxxxx
[mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of Macindoe, Gary
                Sent: Wednesday, May 07, 2008 1:08 PM
                To: icu-pcb-forum@xxxxxxxxxxxxx
                Subject: [PCB_FORUM] RS-274X

                 

                Hey guys,

                 

                Allegro PCB 15.5.1, Expert license, Windows XP Pro

                 

                Ok, RS-274X question.

                 

                I like negative inner planes, and include targets
(lines) and a film description box (lines and text) below the board.

                 

                I notice that when I gerber out negative plane film in
RS-274X format, I don't get the targets (lines) nor the film box (lines
and text).

                I see the same results whether I load the gerbers into
an Allegro database or CAM350.

                 

                Is there any way to get the lines and text on a negative
film with RS-274X?

                 

                Thanks for any help!

                 

                Gary

                 

                 

                Gary E. MacIndoe
                PCB Design Engineer
                Fort Collins, Colorado

                amd.com

                gary.macindoe@xxxxxxx

                 

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