The Raspberry Pi 3 Model B single board computer is already very small, measuring just 85.6-by-56.5-by-17mm. However, well-known hardware hacker Node managed to reduce that 17mm thickness down to just 7mm.
Node calls it the Raspberry Pi 3 Slim. His aim was to create a very small and slim headless computer (setup to operate without a display, keyboard, or mouse attached) offering significantly more power than the Pi Zero. But in order to achieve a 7mm thickness, some major modifications were required to a standard Raspberry Pi 3.
As Node explains in the video above, he removed all the major ports and components from the board. The area where the USB and Ethernet ports sat was also sawed off. In their place, Node fitted three micro USB ports inside the case and soldered connections to them on the board. The middle port is used to supply the Pi with power.
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The case is a custom design which Node made the files available for so anyone can 3D print it. The top is an open grill so as to allow heat to escape from the Pi's ARM chip. There's also easy access to the SD card slot on the bottom.
Although Node classes this as a simple project, it still requires some hardware knowledge. But as an experiment it's one worth trying if you're tempted as the worst that can happen is you break your Raspberry Pi, which isn't very expensive to replace.
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