Is it possible to have arc track?


#1

KiCad 4.0.7.
Task is RFID antenna with round ferrite plate ?

If not - will it be possible in V5?


#2

I believe there was a patch to add something like this last year but I don’t think it was ever merged.


Status on curved/smooth corners in traces?
#3

It wasn’t and won’t be in v5 now.
There is a work round using a component footprint


#4

Thanks,
I’ll try (probably). I wonder if KiCad accepts two pads connected internally in footprint (and I will also need some vias there).
I think - faster (for me) would be not to use KiCad for it :slight_smile:


#5

AFAIK there are the rudiments for arc-ed tracks in the router, but the only way I know how to access it is in the track tuning. I’ve only accessed with tuning differential pair skew/phase.

Nah, I take that back. I just did a length tuning on a board and found what appear to be arcs are just lots of short segments approximating an arc:

Never mind. (I would have deleted this, but decided to leave it so others can learn from my mistake in understanding.)


#6

The electrons don’t care about the arc actually being segments, so there is nothing wrong.
I suspect the OP might be trying to make a spiral antenna, so it would be a lot of segments.


#7

If @Piotr does indeed want to create spiral antenas then these posts might be of interest to him:


#8

Yes.
And being learned from some my previous questions when I can’t do such (any angle) segments under F11 I found them under F9.
But this time instead of doing lot of segments I will just modify that antenna project I had made years ago under Protel where I have arc tracks (would be faster). I am in a midle of my way from Protel to Kicad.


#9

I have added first of links to my “to look carefully in future about KiCad”.
I don’t know Python, and don’t know when will have time to learn it.

Long time ago (previous century) to add graphic to my PCBs I have written simple C++ program converting black/white BMP to gerber (line by line as 1mils width horizontal tracks). As program to edid BMP I had those times allowed max resolution of 600dpi I designed my graphic in 2:1 an saved as 500dpi.

Looking very fast through that link I sow there some tool to get gerber used in try period time. I have nothing against giving source of that my program but not sure if it can be usefull for anyone here.


#10

https://bugs.launchpad.net/kicad/+bug/1577958


#11

This topic was automatically closed 90 days after the last reply. New replies are no longer allowed.