Hey, i would like create “free shaped” Copper Lanes in form of a Sin/Cos or a Polynom function.
an example y= 16mm sin(x) About 45mm long
Could you help me please how to make this?
thank you for you help/tips in Advance
Hmm, that’s a triggy request. 
Do you have some picture about the shape?
Directly in KiCAD it is not possible unless you “draw” the tracks piece by piece, but here is a couple of options:
- Use a Python script to do it (take a look at this post from @Joan_Sparky)
- It may be possible with FreeCAD’s sketcher and the import it back into KiCAD with StepUp Tools (@maui may help here)
- Do the drawing in a CAD software and the import the result in KiCAD as DXF file, then use a text editor to put the form in the correct layer.
Those are just ideas and possible ways, I haven’t seen an straight solution for your problem.
Hope this helps
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You only need to draw one 90⁰ segment. The rest is copy, paste and perhaps scale.
You can place line segments and arrange them with the polar coordinate setting.
thank you i will try it
I should add.
Right click on a line provides ‘move exactly’ and ‘position relative to’ functions.
Make sure the ‘use polar coordinates’ is checked.
You might find that drawing the layout in a drawing program like Inkscape and using this utility is a simple way of achieving your design. Inkscape has a function plotter which should make drawing the sine/cos waves fairly straightforward.
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Yet another method:
I accidentally bumped into: /usr/share/kicad/demos/microwave/microwave.pro which is one of the standard demo projects from kicad. It has some curved tracks apparently generated from some text file with a table. I post it just as an alternative, I have not looked into it’s inner workings myself.
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