I believe this will all depend on how the part will be made . . .
For instance, we would cut the metal on one of our higher powered laser cutters, and do the engraving later on a lower powered laser engraver.
(Our higher powered laser cutters are capable of "etching" a part, which we often use for part identification - like the J1, J2, J3)
For our engraver, we just use the dxf of the logo, and we will hatch the area to be engraved.
Are you hoping to engrave to the depth shown in the model?
If this is the case, we would usually make several passes with the lower powered engraver.
It's pretty straight forward, just depends on the equipment and the process that will be used.
Yes the depth on all layers.. I'm guessing a depth dimensions would be all you need? I saw other tutorials specifying colors needed to identify different layers but I'm guessing this all depends on the laser etching company. I do have the layers set differently which I can add easily via dwg of the 2d side of the model.
Would that DXF be all you need then?
Was away from my computer for a bit . . . yes, you should only need a .dxf - this would depend largely on your equipment, I can only speak for what our lasers require.
Bjorn Hulman is correct, it takes a looooong time for a laser engraver to cut to depth, and it involves some trial and error to get the depth correct. With our engraving laser, we are basically making a lot of passes to get it to the final depth.
EDM would also be a really good idea.
You want the laser etching to have depth? Not sure that is possible, and if it is that would be a lot of engraving time right there.
My experience with laser engraving metals is that you put a layer of die down, the laser fuses the die to the surface and the rest is wiped away. Surface depth is not altered (or is measurable in the micro range).
What is the part budget? What volumes will it be produced in? If it needs depth and you have the volume/budget you could get it spark eroded. But a better bet would be to use a badge such as Electroformed Badges – Diametric , then you could use it elsewhere also.
This type of logo can also be chemically etched, but the offset differences that you show will take a long time, don't matter what process is used..