Extruding equally along a path This is my first post on here. I've been using Blender for years and a lot of my questions have been answered here but I've been having trouble with something and I haven't found a solution. I'm trying to create a sidewalk for a road. I figured I would do this by extruding out along both sides of the road and then extruding up. However, the road is curved, and when I got to extrude the extrusion is not equal in all directions. I've searched for a way to do this on here but I haven't found a way to equally extrude all sides. Any advice? Or is there another way to do this?

Pic is of the road object.
You can try this, it might work for you.


In Edit mode, select the first edge of your road (Left or Right) using alt-click.
Duplicate (Shift-D), hit Escape, then split into a new mesh (P, choose "Selection").
In object mode, select the new object you created (should be a single line of connected vertices), tab into edit mode, and extrude along the Z axis.  (A to select all vertices-->E to extrude-->Z to constrain to Z axis-->1 to extrude one unit-->Enter),
Tab into object mode then add a "solidify" modifier.  Modify the Thickness to your liking - use a positive or negative Thickness to get it to extrude out to the direction you want.
Apply the solidify modifier.
Tab into edit mode and delete the upper/lower layer of vertices, or else move them up/down to the sidewalk thickness you prefer.
Do the same for the other edge of your road.


Should do the trick!  At least it did with a sample curve I played with.  I don't know if it's shaped like your road.

Edit: here is a screenshot of the sample I worked with:



I started with the light gray road mesh (which I actually created from a bezier curve), then I created the two light blue sidewalk objects using the steps described above.