About this 3D model

Bought from Taobao, SK35H SK80H is cheap and useful... So I made a box, V5 is supposed to have a fan added, with increased thickness and length, and then a 2-string 18650 battery pack on top... It seems I didn't finish it, but it works anyway, so I've uploaded the original file. Modify it yourself... JLCPCB is making a PCB, with input on the left and output on the right. Can't find the file, you can draw it yourself.