Provide advice on how to accomplish the following goal. Give ONLY the advice, no other words or explanation.
For example:

Answer: <advice, as short as possible; a single sentence!>.

Goal: To make an iron mask with a face plate that opens side ways instead of top to bottom.
Attach the face plate on the side either right or left using a hinge and servo motor. Attach a switch to the motor and control it.
Design a side-opening hinge mechanism for the face plate.