Here you can download 3d model of case…
https://drive.google.com/file/d/1iACqu5D2QaLVm0QNlTibZveHNBJFUaP8/view?usp=sharing
this is my first 3d model. i made some silly mistake but you can improve the durability of this model. but there is no major issue.
components required:
(3) 3.7v 18650 cell
(1) 12.6V BMS 10A 3S 1P (recommanded)
(3) dc Socket : https://makerbazar.in/products/power-connector-dc-jack?variant=46035537723632
(6) copper terminal for battery. (extracted from 18650 holder): https://makerbazar.in/products/high-quality-18650-smd-smt-battery-holder-case?variant=46543756460272
