I'm not sure to use the correct words. Anyway, here what I did:
- created a bezier curve
- duplicated it
- bevelled the original one with the round option (but I should work even with an object)
- created a curve to be used as bevel object for the second one
Now I have this situation:
At the end, the inner object will be "subtracted" from the outer one, in order to make a "trench" inside.
My goal is to define a constant distance between the surface of the outer object and the surface of the inner one, along all the path.
I tried with either scaling or offsetting the bevel object but it does not keep the distance along the path. Ideally, I would define this distance in mm. I understand it depends on the two curves and the shape of the bevels. I'm not sure if it is even possible...