[kicad-users] Convert Eagle library to KiCAD
Dear KiCAD group, I just found an ATXMega library for Eagle which I would like to use on my KiCAD Project. Is it possible to convert the library to KiCAD? Apprecitate any help Andrej
[kicad-users] Re: Eagle to KiCAD
Hi, mostly I redraw ALL my libraries and modules, but using some existing library. It is so easy that I turned it into a habit... There are a lot of Eagle converted libraries by Renie (also Brazilian) at http://www.reniemarquet.cjb.net/kicad.htm I am answering to the list, maybe you get more answers from there, including Renie ;) that is what the list is for... Alain andrej_georgi escreveu: Dear Alain, I am not sure if your the right person to ask. I just found an atmel atxmega library for eagle and lookn for a solution to convert it to KiCAD. Since you got experience in KiCAD convertions I just ask you how to do that? Kind Regards Andrej Georgi
[kicad-users] Re: Solder Paste
--- In kicad-users@yahoogroups.com, Robert birmingham_spi...@... wrote: Thanks. I should add that they want the solder mask to be positive (ie the solder mask clearance is supposed to be 0.4mm), so your cunning idea can't be applied in this case. [sound of planting face in hand] D'oh! Yes, I was thinking solder masks and not the paste tool. Well, one sure way to do this is to edit the *SoldP_Cmp.pho (and similar) file and mod the appertures. E.g., if the original apperture for an 0804 was D23 and it was listed as %ADD23R,0.055000X0.035000*% (1.4 mm x 0.9 mm) in the Gerber, changing it to 1 mm x 0.5 mm would be %ADD23R,0.04X0.02*%, more or less.
Re: [kicad-users] Re: Solder Paste
Hmmm - that would be a lot of manual editing. OK, thanks. At least I can now solve it with a bit of C code if they insist on this one. Regards, Robert. axtz4 wrote: --- In kicad-users@yahoogroups.com, Robert birmingham_spi...@... wrote: Thanks. I should add that they want the solder mask to be positive (ie the solder mask clearance is supposed to be 0.4mm), so your cunning idea can't be applied in this case. [sound of planting face in hand] D'oh! Yes, I was thinking solder masks and not the paste tool. Well, one sure way to do this is to edit the *SoldP_Cmp.pho (and similar) file and mod the appertures. E.g., if the original apperture for an 0804 was D23 and it was listed as %ADD23R,0.055000X0.035000*% (1.4 mm x 0.9 mm) in the Gerber, changing it to 1 mm x 0.5 mm would be %ADD23R,0.04X0.02*%, more or less. Please read the Kicad FAQ in the group files section before posting your question. Please post your bug reports here. They will be picked up by the creator of Kicad. Please visit http://www.kicadlib.org for details of how to contribute your symbols/modules to the kicad library. For building Kicad from source and other development questions visit the kicad-devel group at http://groups.yahoo.com/group/kicad-develYahoo! Groups Links No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.283 / Virus Database: 270.11.38/2037 - Release Date: 04/02/09 06:09:00
[kicad-users] Re: Solder Paste
--- In kicad-users@yahoogroups.com, Robert birmingham_spi...@... wrote:
Hmmm - that would be a lot of manual editing. OK, thanks. At least I
can now solve it with a bit of C code if they insist on this one.
Give this a try (I hope the Y! formatting doesn't totally destroy it.) May need
to be tweaked for your house Gerber style.
#!/usr/bin/perl
#
# Usage: perl shrink_paste.pl [input] [shrinkage] {minimum}
#
# Define $scale as the factor from the units of the command line shrinkage
# value to the units in the Gerber. For a command line unit of mm and a
# Gerber unit of inches, use 25.4.
# If specified, the minimum dimension will be respected. If not specified,
# it defaults to 0.0. Units are assumed to be the same as shrinkage and
# similarly affected by the scale factor.
$scale = 25.4;
$minimum = 0.0;
$iname = $ARGV[0];
if ($iname eq ) {
print No input filename\n;
exit;
}
$oname = $iname;
$bakname = $iname;
$base = rindex($oname, .pho);
if ($base == -1) {
print Input not a Gerber? (Not .pho)\n;
exit;
}
$shrinkage = $ARGV[1];
if ($shrinkage == 0) {
print Quitting, no shrinkage spec'd\n;
exit;
}
$shrinkage /= $scale;
$minimum = $ARGV[2];
if ($minimum 0.0) {
$minimum = 0.0;
}
$minimum /= $scale;
substr($oname, $base) = .tmp;
substr($bakname, $base) = .bak;
open (IFILE, $iname) or die $iname: $!;
open (OFILE, , $oname) or die $oname: $!;
$working = 0;
$x = 0.0;
$y = 0.0;
while (IFILE) {
chomp;
if (!$working) {
printf(OFILE %s\n, $_);
if (/APERTURE LIST/) {
$working = 1;
}
} elsif ($working) {
if (/APERTURE END LIST/) {
$working = 0;
printf(OFILE %s\n, $_);
} else {
@field = split(/[,X\*]/);
if ($field[0] =~ /C/) {
$x = $field[1] - $shrinkage;
if ($x $minimum) {
$x = $minimum;
}
printf(OFILE %s,%.6f*%\n,
$field[0], $x);
} elsif ($field[0] =~ /[RO]/) {
$x = $field[1] - $shrinkage;
if ($x $minimum) {
$x = $minimum;
}
$y = $field[2] - $shrinkage;
if ($y $minimum) {
$y = $minimum;
}
printf(OFILE %s,%.6fX%.6f*%\n,
$field[0], $x, $y);
}
}
}
}
close(IFILE);
close(OFILE);
rename($iname, $bakname);
rename($oname, $iname);
[kicad-users] Re: Is there a fast way to move reference designators?
Hi there, I had exactly the same issue - and unfortunately no solution to you. In my opinion, Kicad needs plenty more shortcuts, a dedicatd one for move designator and rotate designator would be perfect. Cheers, Heiko --- In kicad-users@yahoogroups.com, earthysmell earthysm...@... wrote: So far my kicad experience has been great. I've got my first board almost finished and now its time to move the arrange the reference designators for my closely spaced SMT components. Every time I want to move a designator I start by right clicking and then have to specify that I want to select the reference, then from the next menu I select reference and finally move. Way too slow. I've used other layout tools that let you chose the section mode (with a mode for designators only) so that no clarification is needed. This allows you to move silk around with a single click (like hitting the M key to move a component in kicad.) Is there a quick way to do this??
[kicad-users] Re: Solder Paste
Hi Robert, Interesting manufacturer you've got there. No, Kicad does not have the ability to shrink the solder past pads as it can increase pad sizes on solder resist layer. I myself just finished a PCB where I only had to shrink solder paste for 2 fine-pitch connectors. I did it by not using the original pad for paste but added a smaler drawing for each pad. Man, that was a lot of work, the connector has 60 pins. On the standard components, the manufacturer said it's ok to leave it 1:1. Aparently, the needed shrinkage depends on pad size and how the stencil is manufactures (etched, lasered, electro-polished) but also on the thickness of the stencil. Maybe going to a thinner stencil might be a solution for you, they are usually available down to 100um/4mil. Cheers, Heiko --- In kicad-users@yahoogroups.com, Robert birmingham_spi...@... wrote: Hi all, I've been asked to shrink the size of the solder paste windows relative to the pads by 0.04mm, ie if a pad is a 1mm diameter circle, I've been asked to make the solder paste window 0.96mm in diameter. Does anyone know how I might achieve this please, either with kicad or via some post-processing stage? Regards, Robert.
