模型https://makerworld.com/zh/models/214531#profileId-233840的点子非常不错，基于这个思路，自己只做了一个魔都上海的剪影

后续还会陆续制作其他城市

默认是正面朝下，这样可以获取更好的pei纹理效果。

The idea of the model https://makerworld.com/zh/models/214531#profileId-233840 is very good. Based on this idea, I only made a silhouette of the magical city of Shanghai.

Other cities will be produced in the future.

By default, the reverse side is printed face up, which can obtain a better pei texture effect.

2024.03.15 update：

1.增加白色衬底   add white background

2.后盖加深1mm，解决盖不全问题 The back cover is deepened by 1mm to solve the problem of incomplete cover.