Case for DC-DC step-down converter LM2596S

This is a simple case for a DC-DC step-down converter.
I use it to power my Raspi 3 with a former laptop power supply which is easier for me to use than a good 5V-3A power supply for the Raspi.

I got rid of the under-power alert on Octoprint, regardless of how good the 5V power supply was told to be.

This convert also gives the opportunity to use it internally with a 24V or 12V power supply of a 3D printer.

Feel free to modify this simple cae to your own needs.

I would be happy if you upload your modified thing or pictures of makes, in case you use this creation.