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I can confirm it is possible to create a 3D cylinder extruding a circle, using extrusion direction and thickness. The main problem is that when using a extrusion direction different from the default one (0,0,1), the object appears in different coordinates, as if the UCS was changed... Anyone knows w...

Ok, I'll go ahead and try. I'll keep you updated with the results. Thanks a lot for your help.

I have been looking at DXF documentation and in the circle entity I can see:

210

Extrusion direction (optional; default = 0, 0, 1)
DXF: X value; APP: 3D vector

220, 230

DXF: Y and Z values of extrusion direction (optional)

Wouldn't that let me extrude in any direction I want?

I would not mind adding extrusions myself and contributing to the project, but I would need to be able to rotate the resulting primitive. Can this be achieved using dxf?

Thanks a lot for your anwser andrew. So are you saying that dxflib is not capable of achieving what I want or that the result will not be compatible with every viewer? I am OK with the second, I don't need full compatibility. If indeed would be possible to use extrusion with dxflib, could you point ...

I have a cylinder in parametric form, that I want to draw as a dxf. What would be the optimal way of doing this with dxflib? Using polygons? NURBS? I am new to AutoCAD and not sure about the ways I can do this. I tried creating a cylinder in AutoCAD 2014 and exporting it to DXF and it only creates t...