Updated: 07/08/2025
Overdub Mixer KiCad Project w/TL074 QUAD OPAMP
Foldername: OVRDUB
For my birthday (06/19) and through Summer '25 Solstice
I went through all of my IFX KiCad Website and Updated EVERYTHNG!
Schematics and Custom Electronics Symbols
Printed Circuit Layouts and Footprints with 3D WRL/STEP Models
All Projects are now fully functional with KiCad Version 9.x
The entire portfolio is available as one large (+180Mb) ZIP file:
DOWNLOAD LINK:
https://www.invntfx.com/_ifxkicad/IFXKICADXTRA.zip
Inside is the Master Folder “IFXKICADXTRA” …
Copy it Directly into the main Username \ Documents \ KiCad Folder
This Folder “IFXKICADXTRA” at this location is prepared to allow
easy setup of the symbols, Footprints & 3D Models for use with the
IFX KiCad Works Projects it contains or any other KiCad 9 designs.
ONCE COPIED TO THE DOCUMENTS\KICAD DIRECTORY OPEN THE HELP FILE …
IFXKICADXTRA \ KICADTXTS \ ifxkicadhlp.txt
This help file gives detailed instructions on how to configure KiCad
to work efficiently with all the projects and files.
Even if you have never worked with Electronics CAD KiCad is user friendly
and with all of these completed projects that are Schematic & PCB Editor
‘Linked’ w/Netlist Files and self-contained Symbols, Footprints and 3D Models
it allows new users and even pros to work with KiCad in a “WYSIWYG” format
so that you can see it function and examine its operation.
MAIN IFX KICAD WEBSITE LINK:
https://www.invntfx.com/_ifxkicad/_ifxkicad.htm
IFX KiCad Works
This is how I create any value of a Resistor with my 3D STEP Models.
This same method works with WRL Files also.
HOW TO MANUALLY EDIT A STEP FILE TO CREATE
RESISTORS WITH DIFFERENT VALUES
…
Wow! I just thought of a great addon feature for KiCad!!!
The color of each band and the pins and body are individual ‘units’ that can easily be edited with any text editor.
The kicad developers could write a script that would access one of my ‘edit format step file resistors’ as the default template to create resistors of any value and save them in step format.
The same could be applied to my wrl file resistors.
P.S. I use various types of 3D CAD Model software to create my 3D Model files.
All of these are Commercial Licensed Software:
I first create a WRL VRML97 file with a software program that I personally developed.
Then, I export it as a Wavefront OBJ/MTL file as this is very stable and can be converted
to STEP with all dimensions and colors intact.
I then convert the OBJ/MTL file to a basic STEP AP212 file with InStep Studio 3.0 …*I then import that STEP file into Alibre Design Pro and can export it as a more powerful
STEP AP242 with full color and ‘Transparency’ features.
AN EXAMPLE Of MY ‘TRANSPARENT’ VALVE/TUBE 3D MODELS
I DO NOT CHARGE FEES FOR MY MODELS. ANYONE MAY USE THEM FREELY.
Hint: The reason I do not use ‘absolute RGB color coding’ (e.g. Black = 0 0 0 , White = 1 1 1)
is because some 3D Model Software ‘defaults’ to duplicating absolute colors with a definition field ‘Use DEF Material’ or similar syntax that results in unwanted color saturation of random model segments during rendering for view. Therefore, as an example of a 4.7K Ohm Resistor I would use something like:
1st Band Color = Yellow = .99 .99 .01
2nd Band Color = Violet = .9 .01 .9
3rd Band Color (Multiplier) = Red = .99 .01 .01
I hope this color coding information willl be helpful to KiCad users who use FreeCAD to build their 3D Models. If you experience unwanted color transfer in model parts examine the file code and replace any repetitive DEF syntax with a chunk of full color coding with slightly altered hue/pigment.from any given absolute colors.