If you follow this blog or follow the whole electronics DIY maker movement, you’re probably familiar with RepRap.org. This is an open source project with the goal of creating a self-replicating rapid prototyper (3D printer). Over at Bre Pettis’s I Make Things (also at Makezine Blog), you’ll find the first in a series of Makezine Weekend Project video tutorial on how to make a RepRap robot. This week they’re working on the electronics part of the RepRap robot, like the stepper boards, motor controller board, and arduinos. After watching the video, you can download their PDFcast for more details and links. In upcoming weekend project videos they’ll be working on the hardware and software. So stay tuned!