Power Supply Cover/Switch Mounting

This is a replacement for my power supply cover that came with my printer. I did not like it very much because all the holes should be protected but should not block ventilation.

The original was laser cut and although i 3D printed my replacement a similar design was used. There is about 10mm (3/8") gap under the top for airflow. The 2nd cover for the fan area was added should you need the holes protected from children inserting objects.

The main bolts used are M3 x 20mm