Datasheet 555

D0008A

Hi,

What TI 555 part will you use? If you share the datasheet for the part
and point out which one of the various package types available you will
use, that will help.

Are you can see the question cannot be answered without more information.

Chris
--

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Hello

I would like to use a 555 timer from Texas instruments on a PCB But I don't know which footprint to choose in Kicad

Can you help me ?

Thanks

Stanislas

Hi All,

When I generate a BOM from schematic editor it just creates a .xml file rather than .csv
The error message is:
xsltproc -o "/Users/robbrown/Electronics/KiCAD/KiwiSwitcher2/Switcher" "/private/var/folders/8h/cz4ktnmx2ps01l07lh46mb980000gn/T/AppTranslocation/F2A928F6-246C-4E66-8B38-D933C6878674/d/kicad.app/Contents/SharedSupport/plugins/bom2grouped_csv.xsl" "/Users/robbrown/Electronics/KiCAD/KiwiSwitcher2/Switcher.xml"
Command error. Return code 4.
warning: failed to load external entity "/private/var/folders/8h/cz4ktnmx2ps01l07lh46mb980000gn/T/AppTranslocation/F2A928F6-246C-4E66-8B38-D933C6878674/d/kicad.app/Contents/SharedSupport/plugins/bom2grouped_csv.xsl"
cannot parse /private/var/folders/8h/cz4ktnmx2ps01l07lh46mb980000gn/T/AppTranslocation/F2A928F6-246C-4E66-8B38-D933C6878674/d/kicad.app/Contents/SharedSupport/plugins/bom2grouped_csv.xsl

There is nothing at /private/var/folders/8h

Just reinstalling by downloading the app again and dragging into apps will not affect the /private/ folder

BoM generating has worked before

Can anyone say where the BOM generating files are stored in the Mac OS port?

I will try BOM export from the same project on Monday.

Thanks,
Rob.

What version of Kicad are you using?

In V6 the latest, when you open the main launcher screen down the left
hand side there are several options. Two of which are: create a zip
archive of projects and unzip and archive...

That may help retain the old projects.

Generally I simply copy the entire project directory somewhere else...

In Kicad 6 you can have both global and project specific libs. That can
be useful sometimes.

The problem you are having is that your installs cannot find the libs.

So from preferences, open configure paths

That will tell you where Kicad is looking for the libs.
Adjust to point to your network store.
In preferences there are two other options that you may need / want to
tweak.

manage symbol libraries
manage footprint libraries

These enable/disable various libs. This reduces the clutter on the screen
when working with the libs. eg you may not want the various audio amp
libs or the dsp libs.

Likewise the footprints can be reduced as you need.


Generally I point kicad ay my own libs, and usually the devices lib, and
that's it I only add other libs as needed.



The last things to note is that you may have to do a bit of hunting about
in the old project if you have created any new footprints or symbols
there.

Kicad needs to be told WHERE to save things, especially in the older
versions. You needed to set the working lib first Then save.

The best method is to create a couple of directories my-footprints ,
my-symbols and make sure that you save anything that you create in there.

So in your old project, edit the footprint/symbol you have created and
resave it in your own libs.

You may have to add these to the new project and point it at the specific
part. That should resolve most of the problems.

Andy






On Sat, 24 Sep 2022 09:50:02 -0700
"George Csahanin" <george@...> wrote:

Not sure where to start. I've migrated to KiCAD and very much like it but from day one several years ago I just cannot understand the libraries, etc. I'm not even sure of how to explain it.
I have a project "test" which has test.sch, test.kicad_pcb in it. It is fine and I've had boards made that work great. But I want to make some improvemets to the circuitry and make new boards but I don't want to lose the old version. I tried making a new project "testa" and in its new directory I placed copies of the working files but renamed as testa.kicad_pcb and testa.sch. The board layout seems ok but the schematic gave me message about remapping the components I chose not to and the schematic came up with all of the wires present and "??" for all the components. Tried it again and same questyion so I chose remap and got ssaem result and a huge list of errors.
A sample of the errors but there is one for every component in the schematic:
Warning: No symbol “R” found in symbol library table.
Warning: No symbol “R” found in symbol library table.
Warning: No symbol “LM7805CT” found in symbol library table.
Warning: No symbol “MC78L08ACP” found in symbol library table.
Info: Symbol library table mapping complete!

So I guess I'm asking how do I keep earlier revisions of a project. I'm pretty sure that if I just continued to modify the original project "test" it will carry forward to the board, etc but I'd lose the current version.
And where do libraries reside and how can I add stuff? I have heard nothing but frustration adding stuff in the past which is what has me locked into just modifying the existing project
And/or how can I duplicate an existing project and somehow preserve the custom components I made? I started this project in 2017 and not sure how I made the original components. I also work on KiCAD on three different PC's in my house. The files live on a central server. I use windows as well as Linux versions.

But the library thing...just a constant frustrating point for me...
Thanks y'all for any help.
GeorgeC

Not sure where to start. I've migrated to KiCAD and very much like it but from day one several years ago I just cannot understand the libraries, etc. I'm not even sure of how to explain it.?
I have a project "test" which has test.sch, test.kicad_pcb in it. It is fine and I've had boards made that work great. But I want to make some improvemets to the circuitry and make new boards but I don't want to lose the old version. I tried making a new project "testa" and in its new directory I placed copies of the working files but renamed as testa.kicad_pcb and testa.sch. The board layout seems ok but the schematic gave me message about remapping the components I chose not to and the schematic came up with all of the wires present and "??" for all the components. Tried it again and same questyion so I chose remap and got ssaem result and a huge list of errors.?
A sample of the errors but there is one for every component in the schematic:

Hi,


I'm trying to port my plotting python script to v6. I'm missing the GetAuxOrigin() method from the board class.

Do you know how to get this?

I need a wxpoint to the

drlwriter.SetOptions( mirror, minimalHeader, offset, mergeNPTH )

call.

offset = bord.GetPosition()

does something, but this is not what I wanted; the drill files will have some offset I don't want.

I can set the offset manually by issuing

offset = wxPointMM(100,100)

but I want this to be automatically detected.

Moreover, I want my XY data to be relative to the aux_axis_origin.

Any help are welcome.


Thanks,
Lev

--
Levente Kovacs
Senior Electronic Engineer

W:

开云体育

Merci pour l'info :-)

Stanislas

Forgot to mention but someone has mentioned it before... The libs may be
set as read only so any change you make will not save in them. Hence why
they may be in your project directory.

Andy


On Mon, 19 Sep 2022 02:40:02 +0100
Andy Eskelson <andygio@...> wrote:

Probably in your actual project directory.

Look at the project specific libs in the symbol editor preferences. You
may have created something there.

In the module (footprint) editor you have the option to save it in other
libs as well. It also has project specific options as well.

The symbol and footprint management has changed A LOT in V6 so it's
generally more standardised, and easier to use. However you do need to
keep an eye out for where things get saved to...

What I would do is create a couple of your own libs and use the footprint
and symbol editors to grab the things you have created, then save them to
your own lib, that should make it easier to find them and add your libs
to future projects.


Andy







You have to be a bit careful when dealing with the libs and modules.



On Sun, 18 Sep 2022 20:28:09 -0400
"Steve via groups.io" <jqe1420@...> wrote:

Thank you Angelo and Andy for the advice.

The entries in the folders found at Preferences > Configure Paths appear to be the symbols and footprints downloaded with the KiCad installation.

I have added a few symbols and footprints and find them in the Schematic Editor's Choose Symbol window and PCB Editor's Choose Footprint window. I don't see my additions in the Preferences > Configure Paths folders. Where are my additions stored?

Steve


On 9/18/2022 4:16 PM, Angelo Adamo - QSD wrote:
Hallo Steve.

It is very simple to find where symbols and footprints are located.
Run kicad, even with no project opened, and click on "Preferences", then "Configure Paths": a list of folders where the various symbols and footprints are located will appear.
Pay attention: you must have administrator priviledges to be able to manipulate these folders, both to write into or to move or delete files.

Angelo

Il giorno dom 18 set 2022 alle ore 20:30 Steve via groups.io <jqe1420@...> ha scritto:
Is it possible/feasible to restore KiCad symbol libraries and footprint libraries from backups?

If so, how is it done on a Windows 10 system? As a start, where are the library files located on a Windows system?

Thanks.

Steve

Probably in your actual project directory.

Look at the project specific libs in the symbol editor preferences. You
may have created something there.

In the module (footprint) editor you have the option to save it in other
libs as well. It also has project specific options as well.

The symbol and footprint management has changed A LOT in V6 so it's
generally more standardised, and easier to use. However you do need to
keep an eye out for where things get saved to...

What I would do is create a couple of your own libs and use the footprint
and symbol editors to grab the things you have created, then save them to
your own lib, that should make it easier to find them and add your libs
to future projects.


Andy







You have to be a bit careful when dealing with the libs and modules.



On Sun, 18 Sep 2022 20:28:09 -0400
"Steve via groups.io" <jqe1420@...> wrote:

Thank you Angelo and Andy for the advice.

The entries in the folders found at Preferences > Configure Paths appear to be the symbols and footprints downloaded with the KiCad installation.

I have added a few symbols and footprints and find them in the Schematic Editor's Choose Symbol window and PCB Editor's Choose Footprint window. I don't see my additions in the Preferences > Configure Paths folders. Where are my additions stored?

Steve


On 9/18/2022 4:16 PM, Angelo Adamo - QSD wrote:
Hallo Steve.

It is very simple to find where symbols and footprints are located.
Run kicad, even with no project opened, and click on "Preferences", then "Configure Paths": a list of folders where the various symbols and footprints are located will appear.
Pay attention: you must have administrator priviledges to be able to manipulate these folders, both to write into or to move or delete files.

Angelo

Il giorno dom 18 set 2022 alle ore 20:30 Steve via groups.io <jqe1420@...> ha scritto:
Is it possible/feasible to restore KiCad symbol libraries and footprint libraries from backups?

If so, how is it done on a Windows 10 system? As a start, where are the library files located on a Windows system?

Thanks.

Steve

开云体育

Thank you Angelo and Andy for the advice.

The entries in the folders found at Preferences > Configure Paths appear to be the symbols and footprints downloaded with the KiCad installation.

I have added a few symbols and footprints and find them in the Schematic Editor's Choose Symbol window and PCB Editor's Choose Footprint window. I don't see my additions in the Preferences > Configure Paths folders. Where are my additions stored?

Steve

Yes, that are just text files. Just drag or copy them like any other.

Follow Angelo's instructions on how to find where they currently
reside.

Better still take the opportunity to set up your own library system and
put them where you want them to be.

Andy


On Sun, 18 Sep 2022 14:08:52 -0400
"Steve via groups.io" <jqe1420@...> wrote:

Is it possible/feasible to restore KiCad symbol libraries and footprint libraries from backups?

If so, how is it done on a Windows 10 system? As a start, where are the library files located on a Windows system?

Thanks.

Steve

开云体育

Is it possible/feasible to restore KiCad symbol libraries and footprint libraries from backups?

If so, how is it done on a Windows 10 system? As a start, where are the library files located on a Windows system?

Thanks.

Steve

yes, that is what normal (practical) THT design looks like. But i guess topic starter was looking for each resistor showing correct color bands like in Fritzing. i suppose that could have educational value if one is making tutorials for students.?

years ago i saw people create them and make them available. one of the nicest was by someone in Italy (don't have link). but while this does look neat, it is just not practical since footprint of each resistor would need different 3D view. and since there are many shapes and sizes of resistors, this is just insane... to really make it work, one would need to have some automation (script or similar) to change 3D views for the footprints automatically. without this, it is too much effort and only doable for very small boards.?
?

开云体育

Hi,

I make my models with FreeCAD, and KiCAD do handle the transparencies.

See:

No problem
It fostered a spirited, civil discussion (good!)
I learned something new - KiCAD already handles transparent 3D models.
All machine translation is both a blessing and a curse, but more of a blessing than a curse.

I am limited to English.? I frequently rely on Google and other translation tools. I try to warn my intended victims by indicating "machine translated" or something similar and including the original English with the translation.

Don't let language (mine or yours) be any more of a barrier than it has to be.
--
Oz (in DFW) N1OZ