这是一个适用于3d打印机电机驱动器的收纳盒或者保护盒，可容纳15个驱动器。

并提供了step文件，以供大家去设计丝印。

This is a storage box or protection box for 3d printer motor drivers, which can hold 15 drives.

And provide the step file for everyone to design screen printing.