[PCB_FORUM] Re: Gerbtool with Allegro
- From: "westfeldt" <westfeldt_nbcd@xxxxxxxxx>
- To: icu-pcb-forum@xxxxxxxxxxxxx
- Date: Thu, 1 Sep 2005 07:09:07 -0600
This subject is relevant to the Allegro listserver, because Allegro's
treatment of positive copper pours in RS-274X is different than a number of
other packages. Although Gerbtool used to represent these pours in 3
layers, they have put them on one layer for several revisions. This did not
change the fact that the three layers were still there, and caused Gerbtool
to have some difficulty creating a correct netlist from the gerbers.
For netlists and the ipc-d-356 check, v13.5 has worked well for me, as long
as I did not let the tool change small arcs to linear approximations. v14.0
appears to have cleared up the problem, but I have only been running it for
a couple of months.
I think Mentor still ships Gerbtool with Expedition(Veribest), but almost
never the latest version.
Patrick Westfeldt, Jr.
720-406-0887
-----Original Message-----
From: icu-pcb-forum-bounce@xxxxxxxxxxxxx
[mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of
chris.ball@xxxxxxxxx
Sent: Thursday, September 01, 2005 6:05 AM
To: icu-pcb-forum@xxxxxxxxxxxxx
Subject: [PCB_FORUM] Re: Gerbtool with Allegro
Hi Richard-
I use gerbtool (old version 8.0.2) to view Allegro 274x output. It breaks
the Cu layers into multiple files that have to be turned on together to view
properly.
I had a board a month or so ago that showed a short between two planes when
using gerbtool. It was a drawn (not flashed) glob in an area where one plane
nested inside another.
Scared the pants off me. Could find nothing in the .brd to produce it.
Reran gerber several times, always showed. Eventually viewed the gerbers in
GCPreview and it didn't show there. Made a pic of the problem and included a
warning readme, just in case.
I still use Gerbtool, mainly because I'm very familiar with it (delivered
with Veribest, back in the day...). The incident I related is the only case
I can think of where there was a problem.
Why do you ask?
Best Regards,
-Chris
"richard moffat"
<richard.moffat@alliedtele To:
<icu-pcb-forum@xxxxxxxxxxxxx>
syn.co.nz> cc:
Sent by: Subject:
[PCB_FORUM] Gerbtool with Allegro
icu-pcb-forum-bounce@freel
ists.org
08/31/2005 08:41 PM
Please respond to
icu-pcb-forum
Hi all
I'd be interested to hear of any stories of success or despair when using
Gerbtool to validate 274X.
Contact me offline if you wish.
Cheers,
Richard
NOTICE: This message contains privileged and confidential information
intended only for the use of the addressee named above. If you are not the
intended recipient of this message you are hereby notified that you must not
disseminate, copy or take any action in reliance on it.
If you have received this message in error please notify Allied Telesyn
Research Ltd immediately.
Any views expressed in this message are those of the individual sender,
except where the sender has the authority to issue and specifically states
them to be the views of Allied Telesyn Research.
-----------------------------------------------------------
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
-----------------------------------------------------------
Other related posts:
