In this ZBrush hardsurface tips & tricks video show how to sharpen edges of a dynamesh, how to use live booleans to create panels with buttons and I also use polygroups to add some kind of rubber caps.
The part for the buttons is influenced by the video from Michael Pavlovich:
in which he uses a different approach of slicing and adding polygroups with dynamesh to add the button-like meshes.
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