尺寸为25*23cm，一层的耗材量差不多150g

适合大部分飞机盒料卷外壳，只需要裁掉顶端即可使用，第二代做了镂空处理，减重的同时增加了强度，可以用快用完的末尾料进行打印，非常环保。

Suitable for most aircraft box material roll shells, just cut off the top to use. The second generation has been hollowed out, reducing weight while increasing strength. It can be printed with almost used up end materials, which is very environmentally friendly.