Extrude equally along faces, not normals I'm new at Blender and struggle with platings.
I have this piece of geometry that has been stolen from main mesh.

And try to make sort of SciFi looking plane like this, but this has been done manually extruding all faces and than moving them to the sides and up.

but if I just extrude alongside normals I get this weird result (Of course it's exaggerated extrude, just to show what is wrong)

It's fairly simple shape, and it's very easy to do that manually, but what if we have much more complex objects and plates? How to do plating properly? It has to look like hard surface, not organic matter.
If the example is not enough I have the exact same problem on vent.

extruded alongside normals


We can clearly see that something is off
Extruded manually
All faces are at 90 degrees angle, no distortions.
Also solidify modifier gets the same weird results, but I believe the only thing that solidify do is to extrude along normals.
Apply the scale, before you extrude.
In object mode press ⌃ Ctrl + A while the desired object is selected and than click on scale.