curvy at small scale?

[_Aka_]

You are right, it didn't work as expected for things this small.
This bug will be fixed in the next curvy version. But for now, here is a quick fix for you:
In SplineInputModulBase.cs, line 146, replace

Code:

raster.Resolution = Mathf.Max(raster.Resolution, 2);

with

Code:

raster.Resolution = Mathf.Max(raster.Resolution, Mathf.Max(spline.CacheSize, 2));

For a 1cm radius circle with the default cache density value, it will produce a wire with a triangular cross section. I think that most games don't want to waste more polygons on something that small. But if you need Curvy to produce more detailed mesh, let me know and I will show you how.