|
Symbols had been my bugaboo ever since I started trying to teach myself KiCad. I'm now at v9.0.0 as I update my Linux systems with regularity. I seem to remember a method in which one could copy existing symbols into a new one for modifications. But I'm apparently not able to do that. Plus my existing project symbols appear to be gone. So, if I'm trying to build the symbol on the right: I've been trying to get the 31 terminal text to be horizontal, Is there a way to do that in the symbol editor? I realize that I could move the 85 terminal down and have the 31 on the side above the 85. That I know I can do. The subject is actually an 1981-1984 manual transmission Overdrive Relay. The transistor symbol hides entire analog flip-flop circuits, one variant using a 4001 the other a 14027 IC. Reverse engineering is so much fun. Cheers, Dave F.
|
|
List of Experienced Freelancers
8
I am new to this group. Is there a listing of Experienced Freelancers for KiCAD PCB layout work ?
|
|
Copy vs Duplicate
2
#tutorial
Any idea what the major differences are between using Copy vs Duplicate in KiCad? If it would be helpful in a tutorial, I'd like to help new users know up front- if it will only add confusion, I'll leave it out. I have tried looking in the forum and docs.kicad.org and have come up empty. I could have sworn there were advantages to using one over the other. Kind regards, Brian
|
|
You can turn off the copper for the pour layer, but that hides the tracks as well. This would be very useful - is there any way to do this (other than by deleting the pours before printing, my current work around) ??? Regards, Dave
|
|
Hello, I came from LTspice background and now I'm starting using ngspice to simulate some circuit. I'd like to upload the netlist of a tube amplifier I'm working on. On Files section, however, I can't see the Upload button. Can you help me ? Thanks.
|
|
File /Bravo_ocean_semi.zip uploaded
#file-notice
The following items have been added to the Files area of the [email protected] group. /Bravo_ocean_semi.zip By: Carlo <carlo.cianfarani@...> Description: Bravo ocean tube amplifier: it seems the DC operation point from ngspice isn't good.
|
|
12AU7 tube amplifier simulation
Hello, I'm using ngspice to simulate a tube amplifier based on 12AU7 triode. Attached you can find a zipped folder with the main .cir file and the referenced libraries. Coming from LTspice, I can see there is some issue when running transient analysis using ngspice. Namely the Initial Transient solution (ITS) step from .tran 10n 10m analysis picks a DC operating point solution quite different than LTspice (the same as the .op analysis). ITS/DC operating point looks a bit weird, indeed the amplifier's output signal V(out1) isn't good at all. Can you help me in understanding why ? Thanks. Carlo.
|
|
.include vs .lib directives
6
Hello guys, I'd like to ask how ngspice, under the hood of Kicad, actually manages library files. From ngspice manual, there are two ways to include .models or .subckt, namely using .include vs .lib directive. .include <filename> literally includes the content of <filename> where the directive is located (e.g. within a .cir netlist). It works, let's say, just like the #include pre-processing directive in C language. .lib instead actually includes only parts from library referenced in the file where the .lib directive is. The manual says that. lib directive has the following format: .lib <filename> libname. The latter should be the name of a "section" within the <filename> library file. If the above is correct, what are the "markers" of sections within the library files ? Thanks.
|
|
KiCad 9.0 and my 6-hour project video on Youtube
2
#tutorial
Hi all, KiCad 9.0 is finally here, and to mark the occasion I have published a 6-hour (!!!) video on Youtube. In this video, I show the complete process of how I designed a 4-layer PCB with a variety of interesting components, like an ESP32 C3, USB C, battery controller, flash memory, etc. I used the release candidates of KiCad 9 during January, mostly RC1 and RC2. My objective was to experience KiCad 9 in a realistic non-trivial project and get first-hand experience of the productivity gains that we can expect from the latest refinements in the UI and several new features (the zone manager is my favourite). I hope you will enjoy this video. It's a big one, and an experiment I wanted to do for a long time to determine if people on Youtube are interested in this kind of content. https://youtu.be/LO9AO0XTX3M I appreciate your feedback. Enjoy! Peter -- Tech Explorations
|
|
Hello, Question about pcb transferboard. I am using an Attiny404 smd but i solder it on a pcb transferboard. How should i set this up in Kicad? Thanks, hanz
|
|
the microwave toolbar
2
Hello! Were did the microwave toolbar go? I cannot find it anymore. Is there a replacement? Kind regards, Geert
|
|
I'm still trying to get acclimated to KiCad. Could someone refer me to the correct DOC or instructions how to do the following. I'm using this connector for the I/O. "Fixed Terminal Blocks 6P 2.54mm 90DEG" (Mouser: 651-1725698) https://www.mouser.com/ProductDetail/Phoenix-Contact/1725698?qs=Ul7CXFMnlWUIR3VpVwwC4A%3D%3D This part does have an ECAD Model. My project is on my PC at: E:\Fred's Documents\KiCad\AF-Interface Is there a step by step FAQ or DOC which will take me from download of the Symbol/Footprint, and putting it to where it needs to be to be functional within KiCad on the project. What I've read so far appears to be for more advanced users, assuming I know the structure. I'm in the beginning stages of KiCad. -- Frederick R. Vobbe 706 Mackenzie Dr Lima, OH 45805-1835 U.S.A.
|
|
How do I get the KiCad FlatPak to install in Linux?
11
I'd like to install KiCad from a "FlatPak" under Linux, but I want to download the "FlatPak" as a file that I can archive. I then want to be able to install from that archive so that I'll have a repeatable installation process without being connected to the Internet. Is that possible? If so, does anyone know how to do it? Thanks in advance.
|
|
I've been trying to simulate a simple oscillator using 2 BJT transistors in KiCad, and I'm having some trouble. I've tried it in both KiCad 5.0.2 and 8.0.7. I'm not sure what information to provide for help (netlist, schematic, something else?), so I'll start with two pictures and some NGSPICE code. Here's the one from KiCad 5.0.2: And here's the one from 8.0.7: I've gotten it to work directly in NGSPICE as shown in this plot: Here's the working NGSPICE code if it helps: * Vname PosNode NegNode ... VCC 6 0 DC 5V * Rname PosNode NegNode Value RC1 6 1 1K RC2 6 2 1K R1 6 3 30K R2 6 4 30K * Cname PosNode NegNode Value C1 1 4 150PF C2 2 3 150PF * Q1 and Q2 with model QM and substrate connected to ground by default * C B E Q1 1 3 0 QM Q2 2 4 0 QM * Model statement defining QM as an NPN transistor .MODEL QM NPN (IS=2E-16 BF=50 BR=1 RB=5 RC=1 RE=0 TF=0.2NS TR=5NS) .NODESET V(1)=0 V(3)=0 .TRAN 0.1US 20US .OP * Generate the plots (running twice for some reason) .control reload run reset run plot V(1) V(2) V(3) V(4) .endc .END It also works in real life on a bread board. :) Any suggestions would be helpful. Thanks.
|
|
Gerber Viewer Print Layers Problem
I am having a problem with the Gerber Viewer Printing of layers. I can only get one layer to print at a time. In the Print window I select all the layers but only the top one in the list will print even when all of them are selected. If I say only have one of the layers selected it prints, but if I select more than one only the top most item in the list will print.
|
|
Hierarchical pin net name
2
Searched around for an answer to this, but not have any luck. I am generating a schematic with hierarchical sheets, and I have a sheet where to keep the schematic "clean" looking I want to use net labels for signals that come into the sheet via hierarchical pins. So do I need to use a net label to name the nets, or are they already named the same as the hierarchical pin. So basically, say I have a hierarchical pin called SIGNAL. Is that the net name SIGNAL so at smoother place in the schematic I can use a net label on a wire to make the connection to it? Or do I need to add a net label to a wire connected to the hierarchical pin get the correct connectivity?
|
|
Hello, I have a problem with manual but also automatic route track design. As in the attachments, the design rule checker shows some errors. I tried sofar to change the values of the erroneous space in net class of the Board Configuration. Error still persists. Could I try something else ? Thank you. Regards,
|
|
Great holiday to All
5
Hi All thanks for your tips, Barry 75 On Wed, 25 Dec 2024, 02:26 Tony Casey via groups.io, <tony@...> wrote: On 24/12/2024 20:24, Frederick R. Vobbe wrote: I'm very new to KI, but used Eagle a long time ago when I was still in practice. At 71 years old, I'm getting back into the swing of making boards for my hobby. Is there a repository for symbols and footprints for KI? My first attempt at using the program is to design a relay switching board and I need to find a symbol and footprint for a Phoenix terminal block (header), 3-pos, 90-deg, 5.08mm. (Phoenix p/n: 1757488) You don't mention what operating system you are using. There is a large repository of symbols, footprints and 3D models. I'm slightly surprised you don't already have it installed. BTW, you're not the oldest around here. Not by some way. -- Regards, tony
|
|
New to KI - Library Question
7
I'm very new to KI, but used Eagle a long time ago when I was still in practice. At 71 years old, I'm getting back into the swing of making boards for my hobby. Is there a repository for symbols and footprints for KI? My first attempt at using the program is to design a relay switching board and I need to find a symbol and footprint for a Phoenix terminal block (header), 3-pos, 90-deg, 5.08mm. (Phoenix p/n: 1757488)
|
|
Smoothing of Arcs Converted to Polygons
Hi, I'm trying to create a P-shaped pad by editing a pad as graphic shapes. I've created the required outline as a set of straight lines and arcs, but when I convert these to a filled polygon, the arcs are approximated as two straight lines. Is there a way increase the number of straight lines beyond two, or do I have to do the approximation myself? Regards, Robert. -- * Plain text email - safe, readable, inclusive. * -- This email has been checked for viruses by Avast antivirus software. www.avast.com
|
Image Name
Sat 8:39am
Sat 8:39am