music_box_v2

对第一版音乐盒进行了修改，如图片所示，将发条旋钮和螺丝移至背面，上下部分通过铰链和磁铁连接。

材料清单：

M3*10螺丝*3

M5*3磁铁*4

M3.5螺母*1

The first version of the music box was modified, as shown in the picture, the clockwork knob and screws were moved to the back, and the upper and lower parts were connected by hinges and magnets.

List of Materials:

M3 *10 screw *3

M5*3 magnet *4

M3.5 nut*1