Buck Converter Case

This is a case for a buck converter that takes voltage from 6V 9V 12V 24V 30V (6V-35v) to 5V 3A Single USB Port Output. This buck converter is used to power my Raspberry Pi from my Ender 3 V2's power supply.

I used this buck converter: https://www.amazon.com/gp/product/B01HM12N2C/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1