You can make your own - produce a PCB with the chip on it and header, ensure edge cuts are in the right place, move things around in 3D to look like you want and then export as a 3D model, step, wrl etc. Not difficult. E.g.? its now 0755, 0810 done. This is useful for all sorts of plug in boards. You can then use the 3D model in place of the standard component.   Mike
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I'm working on a board that includes some SMT-to-DIP adapters because of some parts that are available only in surface-mount packages. Has anyone created 3D models of such DIP adapters? If it's not already obvious, it's a piece of PCB with header pins mounted on the bottom and fits the footprint of a DIP socket.
--
David Griffith
dave@...
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Re: Kicad on a Chrome Book
As it happens I've just moved from SUSE linux to Debian 11 If you want kicad 6 then you need to add the backport repository, which has it available. Andy On Mon, 21 Feb 2022 11:39:16 -0800 "Jerry Gaffke via groups.io" <jgaffke@...> wrote: Al,
Thanks for responding.
No DE?? What does that mean?
Perhaps "Debian Experimental", so you just stuck with the Kicad 5 that came with "apt install kicad"?
Kicad 6 has some major improvements.
Running Linux on a Chromebook can mean lots of things.
Best guess is you are using their Debian Linux Environment under Crostini.
But you could be using Crouton, or perhaps just rubbed out Chromeos completely
and installed Ubuntu on the machine.? I am curious exactly what it is you are loving.
Yup, LTSpice is absolutely great.
Good to know it works well under Wine on your Chromebook.
I can't think of any other MSWin centric software I would want to port.
I've been using Chromebooks for most of what I do on a computer for nearly a decade.
It just keeps getting better, this weekend the "better" was moving from Crouton to Crostini.
The Crostini Debian terminal with bash suits me fine, cut my teeth on BSD Unix in the early 80's.
Jerry, KE7ER
On Mon, Feb 21, 2022 at 10:37 AM, Al Dutcher wrote:
Ive been running Linux on my recent Acer 314
No DE, Love it
I m using Kicad 5.x on it
so far very nice
I m also running WINE on it so that
i can run my beloved LTspice
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Re: Kicad on a Chrome Book
Sorry, desktop
environment
Right, i used apt or apt-get to install
ChromeOS detects that ive done a direct install and
gives me an icon for launching
Sweet!
On 2/21/22 14:39, Jerry Gaffke via
groups.io wrote:
No DE?? What does
that mean?
--
AC2CL
I do not think there is any thrill that
can go through the human heart like that felt by the inventor as
he sees some creation of the brain unfolding to success...
Such emotions make a man forget food, sleep, friends, love, everything.
- Nikola Tesla
|
Re: Kicad on a Chrome Book
Al,
Thanks for responding.
No DE?? What does that mean?
Perhaps "Debian Experimental", so you just stuck with the Kicad 5 that came with "apt install kicad"?
Kicad 6 has some major improvements.
Running Linux on a Chromebook can mean lots of things.
Best guess is you are using their Debian Linux Environment under Crostini.
But you could be using Crouton, or perhaps just rubbed out Chromeos completely
and installed Ubuntu on the machine.? I am curious exactly what it is you are loving.
Yup, LTSpice is absolutely great.
Good to know it works well under Wine on your Chromebook.
I can't think of any other MSWin centric software I would want to port.
I've been using Chromebooks for most of what I do on a computer for nearly a decade.
It just keeps getting better, this weekend the "better" was moving from Crouton to Crostini.
The Crostini Debian terminal with bash suits me fine, cut my teeth on BSD Unix in the early 80's.
Jerry, KE7ER
toggle quoted message
Show quoted text
On Mon, Feb 21, 2022 at 10:37 AM, Al Dutcher wrote:
Ive been running Linux on my recent Acer 314
No DE, Love it
I m using Kicad 5.x on it
so far very nice
I m also running WINE on it so that
i can run my beloved LTspice
|
Re: Kicad on a Chrome Book
Hi All
On 2/21/22 13:29, Jerry Gaffke via
groups.io wrote:
Following a link
from ?
down into
Ive been running Linux on my recent Acer 314
No DE, Love it
I m using Kicad 5.x on it
so far very nice
I m also running WINE on it so that
i can run my beloved LTspice
--
AC2CL
I do not think there is any thrill that
can go through the human heart like that felt by the inventor as
he sees some creation of the brain unfolding to success...
Such emotions make a man forget food, sleep, friends, love, everything.
- Nikola Tesla
|
Re: Kicad on a Chrome Book
Following a link from ? down into
? ??
it appears that Debian 11 (bullseye) for Chromebooks already gets Kicad 6.02 by default.
Give a Crostini console command of "apt list kicad" to see which Kicad version you will be getting.
So may be fine to just say "sudo apt install kicad" once you get the Crostini linux environment up
if?"lsb_release -d" at the linux prompt shows "Debian 11 (bullseye)" or later, that version
of Crostini was released in Dec of 2021.?
? ??
Looks like Kicad Debian builds can support ARM processors, but Intel/AMD processors
will have better support for some of the other Debian packages.
? ??
Older Chromeos software versions required bringing the Chromebook into developer mode
to run Crostini (the Beta release of Crostini).? Chromebooks more than 2 or 3 years old
may not be supported by new Chromeos releases, and may not support Crostini at all.?
? ?
After a couple days playing with Crostini on my recently bought Asus CX1500CN Chromebook,
I'm very impressed.? Only issue is that the contrast and viewing angles from the 1080p screen are
not as good as some.? Some may want a faster processor.? You will want a $10 bluetooth wheel mouse
when running Kicad.? If you can live with an 11" screen, some new "refurbished" Chromebooks are $50.
Just got this going, haven't built a board with it yet but am so far blown away with how capable
a lowly Chromebook can be.? Am curious what others with more time on Crostini have to report.
Jerry
toggle quoted message
Show quoted text
On Sun, Feb 20, 2022 at 03:48 PM, Jerry Gaffke wrote:
Just giving the command "apt install kicad" would work, but probably
gives you Kicad 4.? As of Feb 2022, you really want Kicad 6.
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Re: Kicad on a Chrome Book
This is the only hit I see in the group when searching for "crostini", so thought it worth updating.
Ian pasted the same text twice, so his instructions are impossible to follow.
Here's my shot at showing how to get kicad going on a Chromebook under crostini.
Search "crostini" on the web to find out how to turn on the linux environment,
and how to make a directory such as "Downloads" shareable between Chromeos and linux.
Browse a tutorial on the web for the linux bash shell if unfamiliar with linux console commands.
At the linux console on your Chromebook, type the following bash shell command:?
? ? lsb_release -d
On mine, I get an answer of "Description:? ? Debian GNU/Linux 11 (bullseye)",
With that information, go to? ?
and follow the instructions while typing at the crostini linux console.
The linux version that comes with Chromeos under crostini is stable,
and since kicad is not a priority for them it typically is not up-to-date.
So those instructions on kicad.org tell us how to install a kicad package
that has been "backported" from a newer version of Debian,
a version of Debian linux that is unstable and still being tested.
Just giving the command "apt install kicad" would work, but probably
gives you Kicad 4.? As of Feb 2022, you really want Kicad 6.
Jerry
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Re: problem connecting wires in schematic
Can you post a picture or something?
On 2022-02-18 5:37 p.m., MadTom wrote:
toggle quoted message
Show quoted text
Brian still does connect wire to symbol. Seem to make some
junction points?
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Re: problem connecting wires in schematic
Brian still does connect wire to symbol. Seem to make some junction points?
|
Re: problem connecting wires in schematic
Try selecting your schematic, right click, align to grid
On 2022-02-18 11:14 a.m., MadTom wrote:
toggle quoted message
Show quoted text
I've used v 5.x in the past, just updated to v6.x. I can't seem to
get wires to connect in schematic. Zoomed in and changed grid
settings. Went back to default settings. I'm sure it something
simple. I have searched and googled for?solutions and tried a
number of things! Thanks for your help.
|
problem connecting wires in schematic
I've used v 5.x in the past, just updated to v6.x. I can't seem to get wires to connect in schematic. Zoomed in and changed grid settings. Went back to default settings. I'm sure it something simple. I have searched and googled for?solutions and tried a number of things! Thanks for your help.
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Having a look to the supposed to be the two TO-92 (package with Transistor EBC pins in-line)
in there on your PCB (extracted from your png file):
Have a look to KiCad's 'footprint library':
You shall then see this (by searching for TO92 possibilities, so as to select the 'best one which could fit your need'):
For? TO92 '3 pins in-line' (double-clicking on the different items in the list to show the pads footprints):  ? probably the one you are using (and normally with no difficulty to solder...)
or
could select a 'larger footprint one' (if you still worry about the one you are using):
?   (both of these footprints having the 'same pitch'...)
You could also use the following one (which could be better if you are 'not confortable in soldering')
but for TO92 package 'with not in-line pins'. If you have already procured your TO92's with in-line pins, to bend the pins before being able to insert the parts and then solder each of these pins... With hope it will help (or answer your coach's fears, if any ?).
KR GerardFX
Le?jeu. 17 févr. 2022 à?17:26, Andrew Armstrong < andrew@...> a écrit?:
The normal way to allow enough space between tht transistor
terminals, unless you have a *very* high tech PCB fabrication
system, is to offset the middle (usually base) connection
vertically. I would suggest the TO-92L_Wide footprint if you are
going to etch your own PCB. If so, then it would also be advisable
to edit the footprint for your PCB (and save it in a new library
for future use), so that there is a little more copper around the
holes. That will make hand-drilling less likely to destroy the
pad.
Also, double check that the numbering of the transistor terminals
on the schematic symbol matches the data sheet and footprint,
because a few TO92 transistors have the collector in the middle.
hth
Andrew
Hello, I'm new to using this software and pretty much everything
that has to do with PCB design and manufacturing products. I'm
currently trying to design and build a flashing LED circuit for an
engineering project. The issue I'm inquiring about has to do with
the closeness of the THT pads for my two transistors. When I
printed out the trace on a piece of paper from a PDF format, the
pads are extremely close together and my engineering teacher is
concerned that this will hinder the traces and will make it very
difficult to produce a working circuit. There is an attached
screen shot of the PDF.
--
e: andrew@...
|
The normal way to allow enough space between tht transistor
terminals, unless you have a *very* high tech PCB fabrication
system, is to offset the middle (usually base) connection
vertically. I would suggest the TO-92L_Wide footprint if you are
going to etch your own PCB. If so, then it would also be advisable
to edit the footprint for your PCB (and save it in a new library
for future use), so that there is a little more copper around the
holes. That will make hand-drilling less likely to destroy the
pad.
Also, double check that the numbering of the transistor terminals
on the schematic symbol matches the data sheet and footprint,
because a few TO92 transistors have the collector in the middle.
hth
Andrew
Hello, I'm new to using this software and pretty much everything
that has to do with PCB design and manufacturing products. I'm
currently trying to design and build a flashing LED circuit for an
engineering project. The issue I'm inquiring about has to do with
the closeness of the THT pads for my two transistors. When I
printed out the trace on a piece of paper from a PDF format, the
pads are extremely close together and my engineering teacher is
concerned that this will hinder the traces and will make it very
difficult to produce a working circuit. There is an attached
screen shot of the PDF.
--
e: andrew@...
|
All, ??
I have used ?TO-92 for a ? transistor ?footprint ?several times with no problems…. ? at ?frequencies below ?5 Mhz.
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Show quoted text
Hi Sean, welcome!Yes those pads are close, and will be difficult to solder by hand.Have a look in the footprint list, and for quite a few footprints youwill usually find two versions, one as you have found and another markedsomething likeTO92L_Handsolder.kicad.modAs the name implies these are a lot easier to solder, there is a bit morspacing between the pins which also give the solder resist a chance toget in.AndyOn Wed, 16 Feb 2022 10:32:57 -0800sean.buchinger@...?wrote:Hello, I'm new to using this software and pretty much everything that has to do with PCB design and manufacturing products. I'm currently trying to design and build a flashing LED circuit for an engineering project. The issue I'm inquiring about has to do with the closeness of the THT pads for my two transistors. When I printed out the trace on a piece of paper from a PDF format, the pads are extremely close together and my engineering teacher is concerned that this will hinder the traces and will make it very difficult to produce a working circuit. There is an attached screen shot of the PDF.
|
Hi Sean, welcome! Yes those pads are close, and will be difficult to solder by hand. Have a look in the footprint list, and for quite a few footprints you will usually find two versions, one as you have found and another marked something like TO92L_Handsolder.kicad.mod As the name implies these are a lot easier to solder, there is a bit mor spacing between the pins which also give the solder resist a chance to get in. Andy On Wed, 16 Feb 2022 10:32:57 -0800 sean.buchinger@... wrote: Hello, I'm new to using this software and pretty much everything that has to do with PCB design and manufacturing products. I'm currently trying to design and build a flashing LED circuit for an engineering project. The issue I'm inquiring about has to do with the closeness of the THT pads for my two transistors. When I printed out the trace on a piece of paper from a PDF format, the pads are extremely close together and my engineering teacher is concerned that this will hinder the traces and will make it very difficult to produce a working circuit. There is an attached screen shot of the PDF.
|
Hello,
??? Welcome to the group.
- Can you specify where the pads
are too close together? If it's at the level of the
footprint of the transistors, you have to choose another one
or create one specific to your needs (it's very easy with a
little practice).
- Why do you use such thin cooper? And no ground plane ?
??? Regards,
??? Jean-Paul
****
Jean-Paul Gendner
03 88 27 03 44
Site :
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Show quoted text
Hello, I'm new to using this software and pretty much everything
that has to do with PCB design and manufacturing products. I'm
currently trying to design and build a flashing LED circuit for an
engineering project. The issue I'm inquiring about has to do with
the closeness of the THT pads for my two transistors. When I
printed out the trace on a piece of paper from a PDF format, the
pads are extremely close together and my engineering teacher is
concerned that this will hinder the traces and will make it very
difficult to produce a working circuit. There is an attached
screen shot of the PDF.
|
If you used a predefined footprint for the transistors (from the KiCAD footprint libraries that are part of the full installation) you should have no problems. I too have noticed the closeness of the pads, but they are useable even for hand-soldered assembly. If you wish, you can change the footprint to another where the pads are larger and/or farther apart (i.e. TO-92_Inline_Wide).
|
Hello, I'm new to using this software and pretty much everything that has to do with PCB design and manufacturing products. I'm currently trying to design and build a flashing LED circuit for an engineering project. The issue I'm inquiring about has to do with the closeness of the THT pads for my two transistors. When I printed out the trace on a piece of paper from a PDF format, the pads are extremely close together and my engineering teacher is concerned that this will hinder the traces and will make it very difficult to produce a working circuit. There is an attached screen shot of the PDF.
|
Manipulating kicad_sch with python
Hi all,
I used to use the sch.py to manipulate kicad schematic files, but with the new format, and the sch.py gone from kicad-library-utils repo, I don't really know how to achieve this. Any suggestions?
Thanks,
Levente
--
Levente Kovacs
Senior Electronic Engineer
W:
|
Gérard FARGES
