SBC Server Case

This is a modular SBC or Development Board enclosure. Its base design
principle is you stack on top of each other plates that hold various devices
such as Raspberry Pi, Arduinos, ESP32, hard drives, etc. You can customize it
the way you like. You may need some plates not provided yet. Feel free to
contact me if some plates are needed.

It can contain up to 14.4 cm of devices in height. The plate size is 12 cm by
15 cm. The plates are held by M3 male-female brass standoffs. The fan is 120
mm by 120 mm and can up to 30 mm tick.

I designed it with two goals in mind:

* A single external power supply
* A single cooling fan.

The device showned in the pictures holds 3 Raspberry PIs, and two XL4005 buck
converters to supply the Raspberry PIs. On more buck converter along with
another Raspberry Pi can be added. It is powered by a 12V, 5A power brick. The
fan is a 12 V, 120 mm computer fan. My server case contains a firewall, a DNS
and DHCP server and my IOT management