Extruding with an angle....

 From:  Michael Gibson
3228.4 In reply to 3228.3 
Hi Pilou, that's an interesting solution!

But just keep in mind that offset and scale are not equivalent - offset will keep an even distance between 2 shapes, which can often involve changing the proportion of different internal segments.

For example if you have a curve like this:

Then offset will produce a result like this:

Notice how it is much differently shaped than just a uniform scaling of the original shape?

This is why you usually want to use offset and not just simple scaling in order to maintain an even "wall thickness" between pieces.

The only way that scaling gives you the same result is in some special symmetrical cases like a circle.

- Michael