I’ve completed an early draft of the normal maps. I had to redo a large chunk of the high poly because creased edges wouldn’t behave. I really like the look of the rotating lock dial but I’m not so sure about the “lock/unlock” symbols.

I also normal mapped a small “high security” keyhole in the top of the unit, it is just drawn on the rotating dial so the lock will rotate with the colored discs.

I think it’s a nice touch.