RPI 3B+/4B circuit board protection

When you have to prototype you do not need to close the RPI in a box, you need to access the upper area with all the connectors. At the same time, it is important to protect the circuit board of RPI from accidental damage or short-circuit.

I designed a protection for the RPI which does not need any screw!!! but let you access all you need.

I hope it is useful for you too.
enjoy :)

Update 20190921: printed with ELEGOO MARS and used perfectly with my new RPI4-4GB