Create an outline mesh around another structure / edges with equal distance I am having a big problem creating an outline mesh around a number of edges. 

I found a lot of solutions to that topic like extrude along individual normals (after creating faces) or using the mesh-offset-plugin but all solutions I found so far do not work the way I would them expect to work. 

eg How do I Inset a face equally? and How to offset the edges?

The following screenshot shows my problem: 



The top object is my source where I want an outline object... Or just another object where all points have the same distance to the origin. 

The second object just shows the result of an extrusion along the z axis where the distance on the hitches are too small..  

The third object shows my "normal" results using any of the hints google shows me... including the result of the mesh-offset-plugin... the hitches are to big compared to the "flat" faces...

The last object at the bottom shows the result I created in 2D with corel draw and 2 mintues time...  (the reimport through Inkskape Import and Export to blender took a little longer...)

Using the Inset toolset did not work the way I want nor the shrink/fatten tool nor the extrude individual faces does the job... 

A possible but very unsatisfying solution is to first extrude along the y-axis to get faces instead of edges and then extrude every single selected face by an identical amount using "e" to extrude and "1" for the distance of 1 eg. 



After that I have to delete and merge all the new overlapping vertices in order to get the outline I wanted... And even that does not rally work the way I wand becaus extruding the faces on the sides does not extrude orthogonally to the face but somewhere else...

What am I missing here? I thought of a problem of the direction of my normals but did not find any possibility to make the orthogonal to the face they are connected to... 

Thanks for your thoughts!

Update / Edit: 

Here is what I got from the skin modifier: 



I really have no idea what the problem is... I think maybe my line is the problem... here is a blender file with the line I am trying to outline: 

Edit: finally ;-) THANKS very much for the hint with the wrong scale in my line... that was the problem which caused every solution to fail!
Considering the base shape has no surface and is edges only, you can convert it to a curve with AltC, then use the "extrude" parameter:



Doing that the distance from the outer edges to the base vertices is constant.

Edit: in meantime I've downloaded your file. From both solution the problem is your shape is scaled. So you need to apply scale CtrlA before any other thing.