Vertical extrude of non-planar 2D Polygons

[Phileas]

Hey, this keeps bothering me so I figured I'd just ask:

Let's say, I want to create this object using extrusions of 2D polygons:

 

It's like an extrude of a sloping 2D Polygon, but it's sides are completely vertical (following the original Z-Axis).

If I create a 2D Polygon that's not exactly flat horizontal, like the bottom face of this Volume, and then extrude It, the side faces will be perpendicular to the object I extrude, like this:

 

Is there an easier way to achieve this than just using solid substractions on the sides to get vertical side faces?

It's kind of a big miss of the extrusion command that you can't define the workplane of the extrusion manually when you hit Cmd+E, I keep losing time with unnecessary solid substraction...

[Kevin McAllister]

In Vectorworks objects are always extruded perpendicular to the surface being extruded, not perpendicular to the layer/working plane. To achieve what you want, convert your original object to a NURBS curve, duplicate it, move the duplicate along the Z axis the desired extrusion depth and loft between the original and duplicate curves.

 

An alternate Extrude command which works as you describe would be a good wishlist item.

 

Kevin

 

[Phileas]

@Kevin McAllister Thanks for your answer, I go on and wishlist an extrude command where you can manually select the working plane for the extrusion, no matter the orientation of the surface in the 3D space 🙂

[herbieherb]

You don't need a new tool for this. Just use path extrude.