USB power step down model case
thingiverse
I'm building a USB 12V to 5V step down module for direct power on my Raspberry Pi Zero W. You can check out the module here: https://item.taobao.com/item.htm?spm=a1z09.2.0.0.18a62e8dS3YX78&id=556296725828
Download Model from thingiverse
With this file you will be able to print USB power step down model case with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on USB power step down model case.