Hi
> Could you point out a specific example? I can't guess what you're
> talking about.
I think he's talking about this:
http://www.tablix.org/~avian/blog/images/blog/20070716t131612-pict0002-m.jpg
Silkscreen at the bottom center of the photo is in reverse. This style
is often used by Sony to
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Hi
> Here are the xpm files. Pick out what you think is the best. The only
> differences are the colors of the arrow. My favourite is Place3.
These are great. I also vote for Place3.
Best regards
Tomaz
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Hi
> is there an option to force pcb autorouter to route traces only on the
> selected grid?
IIRC you would have to do some major changes to the routing algorithm in
order to force it to place routes only on the grid.
Best regards
Tomaz
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> Ack.
> gschem and pcb are about the only applications that make me press escape
> during standard operation.
Maybe it's because I'm a regular vi user, but I like the fact that a few
taps on the escape key will bring an application to a known state
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Hi
>> Maybe put "Place" button on the right side of the drop-down menu. GNOME
>> HIG recommends only buttons that have to do with the dialog itself
>> should be at the bottom row.
>
> Do you mean below the preview widget? I want to put an "Edit" but
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Hi
>> Good point. Revised version ("Hide" icon from Bert):
>>
>> http://www.srcf.ucam.org/~ptbb2/gschem-place1.png
>
> Get rid of the Hide button! Move the Place button to the right the
> Close button (close is the hide function). Refresh to the lef
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Hi
> I made another try with the IC. Now it's only something like SO8 instead of
> SO14, and has (nearly) black pins
I would recommend sticking either with Tango [1] or GNOME [2] icon style
guidelines.
Especially Tango seems to be becoming a standar
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Hi
> I'm new to gEDA and my problems start already with the titleblock. With my
> vanilla installation there is already a titleblock in gschem although the
> tutorial says insert one. Me having to use a ATmega128, it does not fit into
> the
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Hi
> Thermal finger width is proportional to the copper annulus gap. So,
> increasing the copper gap also increases the thermal finger width.
Why is thermal finger width implemented in this way?
I think it would be better if finger width would be p
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Hi
> Good idea, what would be the "much smaller drill hole"? If it's too small,
> it can disappear with toner transfer, if it's too big it doesn't center
> the drill. I would suggest ~0.4 mm.
I suggest using a formula like this:
When using the drill
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Hi everyone
I've made a package with
o Icons for gschem, pcb, and gerber files,
o mimetype definitions,
o application associations
It makes applications from gEDA play a little nicer with the GNOME
desktop. It may also work with KDE (since I tried t
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Hi
> Hmmm I guess we will be forced to go 100% surface mount, unless they
> can figure out a way to print holes.
I'm more interested in how you would mount any kind of device on such a
circuit. You probably can't solder anything to paper or plast
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Hi
> I'm thinking of switching from toner transfer to photomask. Then, I
> can drill the board first and use the holes to line up the print.
I've been using masks almost exclusively to make my boards.
I don't think that drilling holes for componen
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Hi
> I'd like to see your bill of materials and design for that Tomaz. It's
> the start of some ethernet labview-like gear.
I'm afraid it doesn't work over the ethernet. It only uses the ethernet
card as a cheap interface to the computer's PCI bus.
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Hi
> Is there some change in the current CVS release of PCB that causes the
> earlier "20060822" version to not be able to read in a file saved by the
> current CVS version? The error I get is below:
> ERROR parsing file 'memnetout.pcb'
>line:
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Robert Fitzsimons wrote:
>> Does anyone have some good ideas for me? I'm a hardware guy with lots
>> of experience in building radios and audio systems (RF and audio).
>
> A few months ago I joined a project to develop a GSM Scanner [1], at the
> mom
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Hi Michael
Great post and I respect your view. It's quite an achievement if you
still manage today with only an ASCII terminal.
I do share some of your points. Almost everything I write for example is
made in vi and Latex, with tabular data entered i
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When using the gtk-hid for PCB, I see some strange behaviors every now
and then. For example, usually when I press "z", it usually zooms.
However, sometimes it gives me the message "click on focus for zoom"
or something like that, forcing me to eith
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Hi
For a new project I probably have to define one or more board
cutouts, is this possible in PCB? I was thinking maybe drawing the
cutout areas on the outline layer would suffice.
Name one of the unused drawing layers "outline" and PCB treats at
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Hi
> You may want to try using a digital camera to take a picture of the
> board or enclosure. Use image-magick/gimp to simplify and scale the
> image. You could then print out a piece of paper, verify it matches
> the enclosure and take your measure
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Hi
> The CircuitCAM software also has some settings to increase the amount
> of copper cleared around pads without rubbing out the entire board.
> (It simply runs the router around a pad several times with an
> increasing radius.) This should take
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> That "seemingly random" location is the "mark", or origin of the
> element. When you created the element, at one point you cut or copied
> a bunch of lines and vias into the paste buffer so you could convert
> them. The location of your mouse curso
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Hi
I have another question regarding labels:
When I move a label that is attached to an element from the library, a
red line will be drawn from the label to the element it is connected
to. This helps identify the element that the label belongs t
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Hi
I can see where the mill created trenches next to the PCB tracks. But
how did you clear copper from large areas? Also using the mill?
Yes. That CircuitCAM software has a feature called "rubout" that will
completely remove copper where it's n
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Hi
I would just like to show you some pictures of a PCB I got back from
manufacturing yesterday.
This is a motherboard for a redesigned 1980's Yugoslav computer named
Galaksija. The design and layout was done completely with gEDA tools
(gschem and PC
3.2 (258).
Thanks.
Best regards
Tomaz Solc
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Hi
> According to the documentation, "clearance" is the amount added to the
> thickness of the line, so a 10 mil clearance should result in a 5 mil
> gap on each side of the line. At least, that's what the file format
> spec says.
I tried this on my
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Hi
> Just updated to metacity v 2.14.5-2 as packaged by debian/etch. Dragging
> works now. Still, the titlebar is not highlighted when the mouse moves in
> (I made sure to set focus_mode to "mouse"). If I set focus_mode to "click",
> the pcb sub windo
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Hi
> 3) Auto router and manual line drawing tool interpret line clearance
> differently. If clearance is set to 10 mil for a particular route style,
> the auto routed lines will punch a 10 mil gap into polygons. With manually
> drawn lines the gap is
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Hi
>> I'm guessing that it would be a simple change to fix aperture naming
>> in PCB - it seems that most of the other PCB software out there
>> takes care not to share names.
>
> I checked in a patch for this today, which has a globl aperture list
>
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Hi
> I'm not sure if this is really fair to call a bug in
> CircuitCAM. It's a little ambiguous as to whether
> multiple layers of the same design should have a
> common aperture definitions.
Other gerber software I tried (gerbv and GCPrevue) don't h
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Hi
> That's nasty, but yeah, we can work around it.
Here's a patch that adds an option that enables a workaround:
http://sourceforge.net/tracker/index.php?func=detail&aid=1634337&group_id=73743&atid=538813
Best regards
Tomaz
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Hi
After spending a couple of hours with our PCB manufacturing staff I
found a solution to my problem. I'll try to explain, but please keep in
mind that my knowledge of the gerber format is limited to what I
learned today...
This time I used the latest CVS version of PCB to export my layout
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Hi Stuart
> My heretical suggestion: Download GCPrevue and inspect your Gerbers
> with it. GCPrevue is a very powerful freeware [1] Windoze program for
> Gerber viewing. It has never failed me. If the polygons look bad in
> GCPrevue, the PCB has a
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Hi everyone
Yesterday I sent a layout I've made with PCB (exported to gerber) to our
faculty PCB fabrication department. Fortunately people there checked the
layout before actually starting the machine and warned me that it looks
a bit strange.
This
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Hi
> I would think that if the Symbol Submission was integrated within the GUI,
> that
> perhaps the Symbol library may be larger then it is now? Just a thought…
I have another idea. How about a GUI that allows you to search for a
symbol in the geda
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Hi David
> problem 1:
> There are lots of floating pins in the design. Is there some way to
> explicitly tell gnetlist that a pin is intentionally left floating?
There is a "nc" ("not connected") symbol in the library. If you connect
a floating pin
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Hi
> It might be related, without a header it might get redirected through
> the "guess the file type" filter, which may invoke ghostscript to
> pre-process the files.
I did some experiments with this particular layout.
My printer understands HP's P
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Hi everyone
I have a weird problem: when I export my layout to Postscript (File ->
Export layout -> PS) some pages look like a bitmap with resolution of
only some 20 dpi.
I've photographed an example of a good and a bad printout. See pictures
at: htt
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Hi
> So is there anything terribly bad/spec-violating/unsafe about driving
> an always-asserted RS-232 output directly from the +12V supply through a
> resistor, or is that perfectly OK? What should the resistor value be?
> Or should I use something
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Hi
> I use the built-in one, when I use it at all. Mostly I hand-route.
I'm curious. In which cases do you use the built-in autorouter?
Recently I was trying to use it to make a single-layer PCB for a
keyboard with 54 keys - one of the most simple
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Hi Karel
> Does anyone have a gschem schematic of Sinclair ZX Spectrum?
Last time I needed Spectrum schematics I had no problem finding them
with Google.
They are probably still on my hard disk somewhere, so if you can't find
them on the net I can s
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Hi
> How is it possible that the LED withstands 20mA in forward and is destroyed by
> 0.5mA in reverse? If it has say 1.5V forward and 5V reverse then the amount of
> energy dissipated is greater in the forward case.
I just tried this in practice. I'
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Hi Levente
> I am designing a home PoE system. I want to use those devices in
> 100Mbps networks. My question is that will my design work as it is?
> Or do I need at least two, four layers etc. I ask this because I have
> no VHF design experience.
So
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Hi
> I have no idea really, but you might learn something by looking at
> the event stream. Run xwininfo to determine the window ID of the
> drawing area, then run xev -ID (with the window id) to see the
> event stream.
I can't make out anything usef
nd other tools don't seem to have any
problems with this.
Best regards
Tomaz Solc
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rosshair.
But I'm not drawing lines near the corners of the screen. Sometimes the
scrolling happens when the cursor is right in the center of the viewport.
Best regards
Tomaz Solc
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has this bug.
libgtk2 2.8.20
xserver-xorg7.0.22
gcc 4.1.1
I'm running GNOME 2.14.3
The ./configure line I used when compiling CVS version:
./configure --with-gui=gtk --disable-doc --prefix=/home/avian/software
Best regards
Tomaz Solc
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Ver
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> Lesstif or Gtk?
GTK
Best regards
Tomaz
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rstand
how this feature is supposed to help me. I've checked the manual and
FAQ and I can't find anything about this.
Can anyone explain what is happening here? I am obviously missing
something since I can't believe such a bug could stay in the code for so
long.
Best regards
Tomaz S
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