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Re: Diodes in standard library - square pin??

 

--- In kicad-users@..., "shelmichaels" <yahooshel@...> wrote:

Hi...

I'm trying to get up to speed with KiCad, and it's going pretty well. 8^)

One thing that bothers me, though, is the footprint/module for diodes as presented in the standard library. In the library version that I got when installing KiCad just a few weeks ago, the anode is marked as pin 1, and the cathode as pin 2. Good. But, the square pin shape is on pin 2. Not good??

Doesn't this violate conventions on pin shapes? Isn't it always pin 1 that is supposed to get the square shape? Would I be painting myself into some kind of corner if I change all diode modules to have square shapes for pin 1?

Thanks for your time in looking at this.

Best regards,
...Shel

My advice, which applies to any EDA, is to largely ignore the libraries that come with it. When there is a part in the library that is worthwhile, export it to a new library and modify it to suit your preference. It won't take long before you have a nice set of libraries containing many parts that you actually use, without having to sift through thousands of random bits. Another advantage is that if you reinstall or upgrade KiCAD, it won't overwrite your changes as it will if you modify parts in the default library.

As for pad shapes, do it the way you prefer, it makes no real difference in the end as long as you are consistent. I generally use A and K rather than 1 and 2 because there are many diodes in various SMT packages that use other pin numbers.
Hi kicad outputs parts lists are their ways to connect that to a mouser and digi

 

Hi kicad outputs parts lists are their ways to connect that to a mouser and digikey parts lists?

What database spread sheets applications are avalable for making the manufacturers part numbers pad type like 603 smd or 805 stock sort by price sql option?

Can I pull in a xml or csv file that is mouser and digikey?
Re: internal autorouter

 

Em 19-07-2012 05:06, blindbox escreveu:

I repeat, it's not very good. You're better off with Freerouter.
Auto router serves not only to make a fully routed PCB !!!

I use it a lot, running quick autoroutes and reversing to previous version.

What I gain with it? Well, it is a very good check for my component placing. After a few fast iterations I can get a much better view of routing problems and plece my components in a much better way

my 2?,
Alain
Re: internal autorouter

 

This is awesome news. I did a tiny bit of experimentation with gEDA-PCB's topological router a couple years ago, and it was pretty interesting.

Will the trip into gEDA-PCB be one way, or will we be able to get results back into KiCad?

I think a command-line tool for this is a great idea. I suspect most of the time it's what I would use anyway. :-)

Cheers,
-Mithat

From: mike
To: kicad-users@...
Sent: Thursday, July 19, 2012 6:16 PM
Subject: Re: [kicad-users] internal autorouter

?

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Guys,

We've made some progress porting the toporoute engine to run as a
qautorouter plugin but it's stalled for now as none of us has large
chunks of time to devote to it in the short term.

In the near term what we are doing is adding a geda pcb export
function such that you can read your KiCAD generated specctra file
into qautorouter and then export to geda pcb and then route it from there.

That functionality should be available pretty soon.

I'm thinking we should build the specctra->geda-pcb converter
functionality as a stand-alone command-line utility as well.

- --Mike

On 07/19/2012 05:20 AM, Mithat Konar wrote:
> Does anyone know if the qAutorouter people
> (http://sourceforge.net/projects/qautorouter/files/) are making any
> progress?
>
> -M
>
>
>
>
>> ________________________________ From: blindbox
>> <blind_box2@...> To: kicad-users@... Sent:
>> Thursday, July 19, 2012 11:06 AM Subject: Re: [kicad-users]
>> internal autorouter
>>
>>
>>
>> The internal router is not that good compared to Freerouter.
>> Also, to use it, simply click autorouting mode (2nd from the very
>> right on the top icon list). Then, right click anywhere on the
>> grid (not on a module) >
> Autoroute > Autoroute all modules.
>>
>> I repeat, it's not very good. You're better off with Freerouter.
>>
>> On 7/19/2012 10:29 AM, jed wrote:
>>
>>
>>> i've done a search on this UG, as well as looking through the
>>> kicad documentation and wikis for info on how to use the
>>> built-in autorouter, but can't find any info at all. i see it
>>> mentioned a lot, including some members of this group saying
>>> "the internal autorouter works fine for me..." but no info on
>>> how to actualy use it... can somebody tell me how to use it?
>>>
>>>
>>
>>
>>
>>

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Version: GnuPG v1.4.11 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/

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Re: internal autorouter

 

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Guys,

We've made some progress porting the toporoute engine to run as a
qautorouter plugin but it's stalled for now as none of us has large
chunks of time to devote to it in the short term.

In the near term what we are doing is adding a geda pcb export
function such that you can read your KiCAD generated specctra file
into qautorouter and then export to geda pcb and then route it from there.

That functionality should be available pretty soon.

I'm thinking we should build the specctra->geda-pcb converter
functionality as a stand-alone command-line utility as well.

- --Mike


On 07/19/2012 05:20 AM, Mithat Konar wrote:
Does anyone know if the qAutorouter people
() are making any
progress?

-M




________________________________ From: blindbox
<blind_box2@...> To: kicad-users@... Sent:
Thursday, July 19, 2012 11:06 AM Subject: Re: [kicad-users]
internal autorouter



The internal router is not that good compared to Freerouter.
Also, to use it, simply click autorouting mode (2nd from the very
right on the top icon list). Then, right click anywhere on the
grid (not on a module) >
Autoroute > Autoroute all modules.

I repeat, it's not very good. You're better off with Freerouter.

On 7/19/2012 10:29 AM, jed wrote:


i've done a search on this UG, as well as looking through the
kicad documentation and wikis for info on how to use the
built-in autorouter, but can't find any info at all. i see it
mentioned a lot, including some members of this group saying
"the internal autorouter works fine for me..." but no info on
how to actualy use it... can somebody tell me how to use it?




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Version: GnuPG v1.4.11 (GNU/Linux)
Comment: Using GnuPG with Mozilla -

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Re: internal autorouter

 

Does anyone know if the qAutorouter people (http://sourceforge.net/projects/qautorouter/files/) are making any progress?

-M

From: blindbox
To: kicad-users@...
Sent: Thursday, July 19, 2012 11:06 AM
Subject: Re: [kicad-users] internal autorouter

?
The internal router is not that good compared to Freerouter. Also, to use it, simply click autorouting mode (2nd from the very right on the top icon list).
Then, right click anywhere on the grid (not on a module) > Autoroute > Autoroute all modules.

I repeat, it's not very good. You're better off with Freerouter.

On 7/19/2012 10:29 AM, jed wrote:
?
i've done a search on this UG, as well as looking through the kicad documentation and wikis for info on how to use the built-in autorouter, but can't find any info at all. i see it mentioned a lot, including some members of this group saying "the internal autorouter works fine for me..." but no info on how to actualy use it... can somebody tell me how to use it?
Re: internal autorouter

 

¿ªÔÆÌåÓý

The internal router is not that good compared to Freerouter. Also, to use it, simply click autorouting mode (2nd from the very right on the top icon list).
Then, right click anywhere on the grid (not on a module) > Autoroute > Autoroute all modules.

I repeat, it's not very good. You're better off with Freerouter.

On 7/19/2012 10:29 AM, jed wrote:

?

i've done a search on this UG, as well as looking through the kicad documentation and wikis for info on how to use the built-in autorouter, but can't find any info at all. i see it mentioned a lot, including some members of this group saying "the internal autorouter works fine for me..." but no info on how to actualy use it... can somebody tell me how to use it?
internal autorouter

 

i've done a search on this UG, as well as looking through the kicad documentation and wikis for info on how to use the built-in autorouter, but can't find any info at all. i see it mentioned a lot, including some members of this group saying "the internal autorouter works fine for me..." but no info on how to actualy use it... can somebody tell me how to use it?
Re: Multi sheet

Andy Eskelson
 

Personally I hate hierarchical sheets, I much prefer "large" drawings so
what I do is simply define a much bigger page size A3, A2, A0 or
whatever.

If you really need multiple sheets, the the way to treat this within the
existing kicad system is to just make a two level setup, with the top
level simply used as a placeholder for the other sheets. You can then use
the various connector labels between them. In other words you simply
forget the hierarchical nature of the top level.


Andy





On Wed, 18 Jul 2012 21:23:25 -0000
"sebastien.duvier" <sebastien.duvier@...> wrote:

Hello all,
I'm a new user of Kicad and I very astonished to discover all functionalities of this free software !
The only thing that I'm concern is the multiple sheet schematic : it doesn't seem to be possible to have a multiple sheet without hierarchical way.

Do you know if this improvement could be available in future release of Kicad ?

regards



------------------------------------

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 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 ! Groups Links
Paste stencil "window pane" GND pad issue

berwynhoyt
 

Hi folks,

I have components with a central large GND pad in the middle and standard pin pads around the edges. ?The paste stencil for these has one large GND pad sized opening for solder mask. ?Then it has several smaller (no copper layer) pads overlaid on that to create a solder paste stencil "window pane" grid (this is the ? of applying solder paste because if you use a single large paste pad, there is too much solder in the middle.

This works find to generate a paste stencil grid for the large GND plane. ?However, Freerouter will no longer open the .dsn file. ?In order to get freerouter to open the .dsn file, I have to change the pads to be copper-layer pads instead of no-copper-layer pads. ?But if I do that then I get DRC errors "Pad near pad" for each of those pads (because they're superimposed on the solder mask pad.

Is there a solution for this?

Thanks,
Berwyn
Multi sheet

 

Hello all,
I'm a new user of Kicad and I very astonished to discover all functionalities of this free software !
The only thing that I'm concern is the multiple sheet schematic : it doesn't seem to be possible to have a multiple sheet without hierarchical way.

Do you know if this improvement could be available in future release of Kicad ?

regards
Paste stencil GND pad grid issue

Berwyn Hoyt
 

Hi folks, I have components with a central large GND pad in the middle and standard pin pads around the edges. The paste stencil for these has one large GND pad sized opening for solder mask. Then it has several smaller (no copper layer) pads overlaid on that to create a solder paste stencil grid (this is the recommended way of applying solder paste because if you use a single large paste pad, there is too much solder in the middle.

This works find to generate a paste stencil grid for the large GND plane. However, Freerouter will no longer open the .dsn file. In order to get freerouter to open the .dsn file, I have to change the pads to be copper-layer pads instead of no-copper-layer pads. But if I do that then I get DRC errors "Pad near pad" for each of those pads (because they're superimposed on the solder mask pad.

Is there a proper solution for this? Thanks, Berwyn

Edited to remove huge HTML portion (Moderator)
Re: Diodes in standard library - square pin??

 

All:

The "Quick and Easy ..." document was useful and interesting.

The IPC7351 standard is also pretty interesting. Somebody has a
copy of the A revision at:



(I'm not too sure how "legal" that copy of the spec. is.)
The IPC7351 standard goes into more detail about PCB land
design.

Regards,

-Wayne

--- In kicad-users@..., "e_e_lucchesi" <e_e_lucchesi@...> wrote:

Regarding pad shapes, I came to like the approach that W. Pulliam from AMD presents in "Quick and Easy Land Pattern Creation" ().
Best regards,
Esteban

--- In kicad-users@..., "shelmichaels" <yahooshel@> wrote:

Hi...

I'm trying to get up to speed with KiCad, and it's going pretty well. 8^)

One thing that bothers me, though, is the footprint/module for diodes as presented in the standard library. In the library version that I got when installing KiCad just a few weeks ago, the anode is marked as pin 1, and the cathode as pin 2. Good. But, the square pin shape is on pin 2. Not good??

Doesn't this violate conventions on pin shapes? Isn't it always pin 1 that is supposed to get the square shape? Would I be painting myself into some kind of corner if I change all diode modules to have square shapes for pin 1?

Thanks for your time in looking at this.

Best regards,
...Shel
Re: Cannot install Kicad 2012-01-19 on Ubuntu 12.04

Andy Eskelson
 

That's very strange. The same command on SUSE gives /usr/local/kicad and
that's the only response.

The kicad binaries have everything compiled in, so apart for some system
libs there is no need to use anything else.

Have you by any chance tried to compile from source at any time?
If so that might have created a bunch of different directories.

Andy







On Tue, 17 Jul 2012 02:42:56 +0100 (BST)
Karl Ekdahl <elektrodwarf@...> wrote:

Andy

Thanks for your answer, when i do a 'whereis' on kicad after installing the version in software center i get
kicad: /usr/bin/kicad /usr/lib/kicad /usr/bin/X11/kicad /usr/share/kicad /usr/share/man/man1/kicad.1.gz

So a whole bunch of directories but no /usr/local/kicad


I tried before to overwrite all of those files manually and that's when i got the error saying something about libjpeg.so.62

Synaptics tells me libjpeg8 is installed so it should work, right?

Thanks!

Karl



________________________________
Fr?n: Andy Eskelson <andyyahoo@...>
Till: kicad-users@...
Skickat: m?ndag, 16 juli 2012 17:25
?mne: Re: [kicad-users] Cannot install Kicad 2012-01-19 on Ubuntu 12.04


?
Ubuntu has been known to make the odd mess-up from time to time, so
that might be a possibility.

For an install, this is what I do: (on SUSE)

** You MUST be root **

Kicad lives in usr/local

there is a kicad directory

I rename that to kicad-old

I then use a root file manager to open the kicad archive.
Then I drag the kicad directory into /usr/local

Enter the kicad directory and as you surmise it's the bin directory
rather than linux and check the permissions there, do a chmod 755 * if
necessary

That's it all done.

Switching between the two versions is then a simple matter of renaming
the directories

If you get problems after that then you may have to install some other
list that ubuntu has left out, but see how things go first.

It's also worth running from a shell so that you can see any error
messages as well.

(Just looking for a few more clues)

Andy

On Mon, 16 Jul 2012 19:31:13 -0000
"elektrodwarf" <elektrodwarf@...> wrote:

Tried multiple things; first off INSTALL.TXT refers to a non-existant "linux" directory which i assume to be the BIN directory. Nevertheless none of the files will execute after changing permissions; nautilus does nothing and the terminal simply says kicad isn't installed.

Tried installing the version of kicad found in Ubuntu Software Center and then overwrite all those (old) files with the new ones in the .tgz but to no avail, kicad reports a problem with libjpeg.so.62 in that case.

The whole reason i want the latest version is because the one found in the software center won't let me change track width even tho i've edited the design rules...

Any help appreciated!

Karl



------------------------------------

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 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 ! Groups Links
Re: Gerbview to .brd conversion

 

I will indeed check that out Richard.
In the end I think I may just use the round holes to give me a good guide - it seems like a LOT of effort to go and map out the
board again though.
?
As a sidenote - I found out why it makes everything into a round pad. Its actually not making pads at all but rather placing zero
length tracks that have a width equal to the width of the pad it was supposed to place. I started writing a bit of a converter that
will just place modules instead but then realised that would completely mess me up since I wanted to use it to position my stuff
and then just group delete everything that isn't a module. I am unsure if you can just place pads floating in the air in pcbnew by
creating them in the text file, but it will have to wait?till I have less panic this end?for me to?check it out....

On Tue, Jul 17, 2012 at 3:09 PM, Richard Webb <axtz4@...> wrote:
?



--- In kicad-users@..., "japie.greeff" wrote:
>
> Hey Guys,
>
> Haven't been on here for a while!
> I have an odd question though that I just can't figure out.
> I am trying to make an interface board to a board I already have (sorta like an arduino type idea), but the other board was designed in Altium. No worries I thought I would just import the gerbers into gerbview and write out a .brd file and then append it to my design and I can allign it that way. The gerbers go into gerbview fine, but when I use export to pcbnew, it creats a .brd file, but when I open it in pcbnew every single one of the square pads has been converted into a round via hole. It wouldn't be too much of a problem but its actually proving quite difficult to allign the squares to the round holes as all the vias and everything overlay it so its quite a mess (see pic in files as conversionError.png
> ).
> any help would be greatly appreciated!

When I've needed to do something like this I make an intermediate CAD drawing with the salient positions, pads, and hole sizes fully dimensioned and commented. Only once I'm happy with that drawing do I start on the new layout, not trying to overlay onto the CAD but using its numbers to place modules on the new board.

Not necessarily a universal best approach but I find it handy having that additional document. If you want to try this route but don't currently have a good CAD package, try DraftSight from Dassault It's "register-ware" and seems to have a pretty good rep. Disclaimer: I run Bricscad for 2D CAD and 3D modeling. Haven't tried DraftSight myself.
Re: Cannot install Kicad 2012-01-19 on Ubuntu 12.04 SOLVED

 

For anyone else having this issue:


to make it work i had to untar the .tgz as stated in install.txt, as this was done with sudo-priveliges i had to change owner of all the files using 'sudo chown -R name:name kicad' on the directory, then go into kicad/bin and do a 'chmod 755 *'. Aledgedly, the reason it didn't work after this is because of a conflict inbetween 32-bit and 64-bit versions of libjpeg, 'sudo apt-get install libjpeg62:i386' solved that.

thanks

Karl

________________________________
Fr?n: Andy Eskelson <andyyahoo@...>
Till: kicad-users@...
Skickat: m?ndag, 16 juli 2012 17:25
?mne: Re: [kicad-users] Cannot install Kicad 2012-01-19 on Ubuntu 12.04



Ubuntu has been known to make the odd mess-up from time to time, so
that might be a possibility.

For an install, this is what I do: (on SUSE)

** You MUST be root **

Kicad lives in usr/local

there is a kicad directory

I rename that to kicad-old

I then use a root file manager to open the kicad archive.
Then I drag the kicad directory into /usr/local

Enter the kicad directory and as you surmise it's the bin directory
rather than linux and check the permissions there, do a chmod 755 * if
necessary

That's it all done.

Switching between the two versions is then a simple matter of renaming
the directories

If you get problems after that then you may have to install some other
list that ubuntu has left out, but see how things go first.

It's also worth running from a shell so that you can see any error
messages as well.

(Just looking for a few more clues)

Andy

On Mon, 16 Jul 2012 19:31:13 -0000
"elektrodwarf" <elektrodwarf@...> wrote:

Tried multiple things; first off INSTALL.TXT refers to a non-existant "linux" directory which i assume to be the BIN directory. Nevertheless none of the files will execute after changing permissions; nautilus does nothing and the terminal simply says kicad isn't installed.

Tried installing the version of kicad found in Ubuntu Software Center and then overwrite all those (old) files with the new ones in the .tgz but to no avail, kicad reports a problem with libjpeg.so.62 in that case.

The whole reason i want the latest version is because the one found in the software center won't let me change track width even tho i've edited the design rules...

Any help appreciated!

Karl



------------------------------------

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 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 ! Groups Links
Re: Gerbview to .brd conversion

Richard Webb
 

--- In kicad-users@..., "japie.greeff" <japieg@...> wrote:

Hey Guys,

Haven't been on here for a while!
I have an odd question though that I just can't figure out.
I am trying to make an interface board to a board I already have (sorta like an arduino type idea), but the other board was designed in Altium. No worries I thought I would just import the gerbers into gerbview and write out a .brd file and then append it to my design and I can allign it that way. The gerbers go into gerbview fine, but when I use export to pcbnew, it creats a .brd file, but when I open it in pcbnew every single one of the square pads has been converted into a round via hole. It wouldn't be too much of a problem but its actually proving quite difficult to allign the squares to the round holes as all the vias and everything overlay it so its quite a mess (see pic in files as conversionError.png
).
any help would be greatly appreciated!
When I've needed to do something like this I make an intermediate CAD drawing with the salient positions, pads, and hole sizes fully dimensioned and commented. Only once I'm happy with that drawing do I start on the new layout, not trying to overlay onto the CAD but using its numbers to place modules on the new board.

Not necessarily a universal best approach but I find it handy having that additional document. If you want to try this route but don't currently have a good CAD package, try DraftSight from Dassault It's "register-ware" and seems to have a pretty good rep. Disclaimer: I run Bricscad for 2D CAD and 3D modeling. Haven't tried DraftSight myself.
Re: How to copy a PCB

 

Karl,

It looks like there's some sage advice among those links - many thanks for sharing.

Hamish
Ledbury, UK


On 16 July 2012 23:29, Karl Schmidt <karl@...> wrote:
On 07/14/2012 09:20 PM, Mitch Davis wrote:

>
> I did some reading to try and find the answer, and well, I'm quite surprised.
>
> It appears that in the USA at least, copyright on PCB layout is very
> weak, existing only in the artistic side of a design. ?The part of the
> design that exists because of utility (which is what Sudipta wants
> with the board's RF characteristics) isn't protected. ?See response 6:

The idea is to make a patent required to employ the excess of lawyers in the USA.

Some here will remember Don Lancaster ( used to have columns in many electronics¡¯s magazines ) who
has written the definitive advise on this subject.

see:
Patent Avoidance ?
Patent when?
Patent why?

Note my tag line... It isn't a joke.

--------------------------------------------------------------------------------
Karl Schmidt ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?EMail Karl@...
Transtronics, Inc. ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?WEB
3209 West 9th Street ? ? ? ? ? ? ? ? ? ? ? ? ? ? Ph (785) 841-3089
Lawrence, KS 66049 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?FAX (785) 841-0434

A patent provides one a license to enrich his lawyer. -kps

--------------------------------------------------------------------------------


------------------------------------

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 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 ! Groups Links

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Gerbview to .brd conversion

 

Hey Guys,

Haven't been on here for a while!
I have an odd question though that I just can't figure out.
I am trying to make an interface board to a board I already have (sorta like an arduino type idea), but the other board was designed in Altium. No worries I thought I would just import the gerbers into gerbview and write out a .brd file and then append it to my design and I can allign it that way. The gerbers go into gerbview fine, but when I use export to pcbnew, it creats a .brd file, but when I open it in pcbnew every single one of the square pads has been converted into a round via hole. It wouldn't be too much of a problem but its actually proving quite difficult to allign the squares to the round holes as all the vias and everything overlay it so its quite a mess (see pic in files as conversionError.png
).
any help would be greatly appreciated!
Re: Diodes in standard library - square pin??

shelmichaels
 

Thank you Esteban, that is a really interesting and useful document!

Best regards,
...Shel

--- In kicad-users@..., "e_e_lucchesi" <e_e_lucchesi@...> wrote:

Regarding pad shapes, I came to like the approach that W. Pulliam from AMD presents in "Quick and Easy Land Pattern Creation" ().
Best regards,
Esteban
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