Thanks for the replies.
I'm using version 20081128. The following is the "about" text:
This is PCB, an interactive
printed circuit board editor
version 20081128
Compiled on Jan 7 2009 at 13:24:12
by harry eaton
Copyright (C) Thomas Nau 1994, 1995, 1996, 1997
Copyright (C) harry eaton 1998-2007
Copyright (C) C. Scott Ananian 2001
Copyright (C) DJ Delorie 2003, 2004, 2005, 2006, 2007, 2008
Copyright (C) Dan McMahill 2003, 2004, 2005, 2006, 2007, 2008
It is licensed under the terms of the GNU
General Public License version 2
See the LICENSE file for more information
For more information see:
PCB homepage: http://pcb.sf.net
gEDA homepage: http://www.geda.seul.org
gEDA Wiki: http://geda.seul.org/dokuwiki/doku.php?id=geda
----- Compile Time Options -----
GUI:
gtk : Gtk - The Gimp Toolkit
Exporters:
bom : Exports a Bill of Materials
gerber : RS-274X (Gerber) export.
nelma : Numerical analysis package export.
png : GIF/JPEG/PNG export.
ps : Postscript export.
eps : Encapsulated Postscript
Printers:
lpr : Postscript print.
Thanks for the reference to the tutorial. It is not one of the ones
that I had looked at. However, a very quick glance at the 3 example
"first board"s shows that none of them fit what I'm currently trying
to do which is a singe sided board with the copper on the top for SMD
components. The examples seem to show a single sided board with the
copper on the bottom, a double-sided board and the final example with
SMD devices but in a 4-layer board. I guess I'd better actually read
it and then comment!!!!
I've attached a .zip file with 2 boards in it. "Board2.pcb" can use used to demonstrate 2 of the problems. If you select the 'component' layer and the 'rect' tool and draw a rectangle around the components, you can see that the rectangle seems to be full and does not make any holes around the pads. if you close it and open it again (just so any issues are separated) and then select the 'rat lines' layer and select the 'line' tool, you can move the pencil and cross-hairs around until you click on a pad - at that point you get the error mentioned in the OP and one of the CPUs becomes fully loaded.
The other board "board1LayerWithRats.pcb" demonstrates the other problem. Simply open the file and click on the 'o' key and the CPU will go 100% with the GUI being unresponsive.
Thanks for the assistance. I really think I'll need to use something like PCB for what I'm ultimately trying to do. At this stage I'm using some prototyping boards for both learning about PCB and for validating my design. At least the last part is still progressing as I was able to download the 'ExpressPCB' windows software, recreate the schematic and create the PC board I was trying to do with PCB in about 3 hours (as opposed to about 4 days with gEDA software - very steep learning curve!!! and slow learner!)
Susan
Attachment:
PCBoards.zip
Description: Zip archive
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