盒子我修改了图形减少了支撑，只需要3g的支撑就可以，另外个盖子是给4mm的批头使用的盖子，请检查你的批头是否是4mm在打印。

I modified the graphics of the box to reduce the support. It only needs 3g of support. The other cover is for 4mm bits. Please check whether your bits are 4mm when printing.