Parts List 1x Universal Mounting Hub - 5mm Aluminum 1x Big Easy Stepper Driver 1x NEMA 17 Stepper Motor 1x US1881 Hall Effect Sensor 1x Logitech C270 Webcam 1x Raspberry Pi 3 Model B 1x Transcend 16GB MicroSDHC Class 10 UHS-1 Memory Card 1x 6" Acrylic Hemisphere w/Holes