learn raspberry pi at adafruit https://www.engadget.com/2012/09/04/raspberry-pi-getting-started-guide-how-to/ 3d printing with OctoPrint on the Raspberry pi 30 bucks for a computer.. lots of uses.. Amazon.com: Raspberry Pi 2 Model B Project Board – 1GB RAM – 900 MHz Quad-Core CPU: Computers & Accessories Source: Amazon.com: Raspberry Pi 2 Model [...]