My LCD was rattling and buzzing as the printer was printing, and I was never comfortable with the way the LCD screws caused the PC board to flex, so I printed some spacers so I could tighten the LCD screws down without causing damage to the board. I re-mounted the LCD with the spacers and nylon lock nuts, and this solved the vibration problem.

I also used sandwiched some strips of double-sided tape between the boards to keep them from rattling against each other.

The spacer can be downloaded here: http://www.thingiverse.com/thing:335589

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