此盒子需要用到一块150×150×2mm的透明亚克力板，其中4个角需要加工出4.5mm的倒角，可以用水口钳剪；还需要4颗直径6以内的强力磁铁，可以到淘宝购买。This box requires a 150×150×2mm transparent acrylic plate, where the 4 corners need to be chamfered with a 4.5mm cut, which can be done with a water jet cutter. It also requires four strong magnets with a diameter of up to 6mm, and can be purchased on Amazon.

先打印盘7的磁铁测试件，比如手上的磁铁是直径6的，就打印6那一个测试件。打印出来后，将磁铁依次插入测试孔里，当需要用点力才能插入，插入后又不会轻易掉出来时，记录对应位置前面的数字，即配合值，比如+0.1，那所需要的磁铁孔直径就是6+0.1=6.1（代数A）。将磁铁的实际高度加上0.2安全距离，如实际高度是5mm，则是5.2（代数B）。First print the magnet size test piece for plate 7. For example, if the magnet on your hand is a 6-diameter, print the test piece with a diameter of 6. After printing, insert the magnet into the test hole in order. When it takes a little force to insert it and it does not easily fall out after insertion, record the number in front of the corresponding position, which is the fit value, such as +0.1. The required diameter of the magnet hole is 6+0.1=6.1 (algebra A). Add 0.2 safety distance to the actual height of the magnet. If the actual height is 5mm, it is 5.2 (algebra B).

将盘1和盘2的各两个负体积圆柱的尺寸都修改为上面计算出来的值（X=Y=A，Z=B）。然后点移动，将负体积圆柱的Z坐标值改成如下图的计算值。（2024.06.14更新：Bambu studio 从版本V01.09.00开始，就已经把坐标系统修改了，并不能按图上的公式修改了，应该按：Z1=20.2-0.5×B，Z2=10.12-0.5×B）         Modify the dimensions of the two negative volume cylinders on plate 1 and plate 2 to the values calculated above (X=Y=A, Z=B). Then click Move to change the Z position of the negative volume cylinders to the calculated values shown in the image below.（Update on June 14, 2024: Bambu Studio has already modified the coordinate system since version V01.09.00, and cannot be modified according to the formula on the diagram. Instead, it should be modified as follows:Z1=20.2-0.5×B，Z2=10.12-0.5×B）

开始打印，在暂停时，放入磁铁或亚克力板，之后继续打印。注意：在放磁铁时要区分方向，确保上下盖盖一起时能相互吸住；放亚克力板时，需要在板的边缘涂上一点瞬干胶，以免在后续打印时亚克力板会翘起影响打印。（下图只是示意，非本设计）Start 3D printing, and when paused, place 2 magnets or acrylic board, and then continue printing. Note: When placing the magnets, distinguish the direction to ensure that the upper and lower covers can be attracted to each other when they are placed together; when placing the acrylic board, apply a little instant adhesive to the edge of the board to prevent the acrylic board from warping during subsequent printing, which could affect the print quality. (The image below is only a schematic, not the actual design)

上下盖之间的转轴可以直接用耗材丝。The rotating shaft between the Top Cover and Bottom Covers can be made of filament.