手搓电动螺丝刀

材料清单：

6.5*7.5*16mm三档开关*1

6*6*6轻触开关*1

Micro USB充放电板*1

18650锂电池*1

N20减速电机*1

3D模型链接：https://www.tinkercad.com/things/7KfK7Udc6R9?sharecode=0019psBuo6eRnGdevpCt0Wtwy2SuMx2Ebhry6XAhBak