How would you make this?

[micheus]

I can't measure, because I needed to look for steps that woul be easy for you to reproduce (I made it once). Capture a screenshot at each step, put into paint brush, cut and assembly each of these charts, add the legend. So that took longer than usual.

I also use to not be in a hurry when modeling. I try to think in the further steps that I can avoid (It's the way it try to learn from each model I make).
I'm not a artist, I just know something about Wings3D.
Surely, someone else would make it faster than me.

Anyway, in this process, stoping for the dinner, talk and other do stuffs I spent around 7h - it's a lot of time. I definitely would not make money from creating "how to".

The hardest part is the one I didn't show how to make - the finàl one - create the bevels.