Hi Heiner,

Moi3D makes curved surfaces easy!

One way is to draw a curve in one of the side views, then use the Extrude tool make the curved surface.



You can of course add or move the control points during this process.




Now if you want to get really fancy, you can make a surface that has a more complicated curviness to it in all directions.

You'll need a simple set of curves, roughly placed together to form a framework.

You can draw them in multiple views, and then adjust the control points of each curve to represent the form in any particular area you wish.

The number of points can vary just as the curviness.



Use the Network command to make a new surface that has a curving form in all dimensions.



And now you can go further and actually manipulate the control point grid within your new network surface to add protuberances!


In my example earlier, I simply used a basic surface Extruded from one curve, but the process can be scaled.