Simplest Raspberry Pi 3B/3B+ Case v2

This is a very simple Raspberry Pi 3B / 3B+ case designed to be 3D printed without any support material.It is compatible with most heatsinks, and the gaps around the connectors are kept as small as possible.Compared to v1, the main unit is easier to install, and the addition of small protrusions helps prevent the lid from coming off easily.Due to the number of fine details, a layer height of 0.16 mm or less is recommended. This case is available in two versions:Standard Version:Designed with appearance in mind. Ventilation holes are located only on the sides, and the GPIO pins are covered. Enhanced Cooling Version:Designed for better cooling performance. Additional ventilation holes are provided on the top and bottom, along with an opening for GPIO access. Both versions are also available in a Screw-Optional variant, which is primarily secured by a snap-fit design but also allows optional fastening using M2.5 screws.