Raspberry Pi 4B外壳(风扇、无风扇、无螺丝、快速打印、最小材料)
Raspberry Pi 4B 带5英寸触摸屏外壳
RaspberryPi B+ 3D打印外壳
This case is based on this one; http://www.thingiverse.com/thing:922740
树莓派使用手册基础篇