Path not as smooth as spline

[_Aka_]

Hi,

1- When using a spline in the generator, the Spline(an infinite number of point defined by a mathematical function) is rasterized to finite set of points called a Path. Depending on the parameters of the rasterization, that set is more or less close to the original spline. More info here:
https://curvyeditor.com/documentation/generator/modules/shapeextrusion#path
https://curvyeditor.com/documentation/generator/modules/rasterizepath
https://curvyeditor.com/documentation/splines/cache
Also, for your train, you can use the Path Controller class instead of the Spline Controller class.

2- On the forum page, in the top right part, there is a "Post Thread" button

I hope this helped