Variable Speed ROV Controller VSRC-1

This set of instructions, created by Robert L. Kershaw, help individuals in any setting develop their own Variable Speed ROV (Remotely Operated Vehicle) controller. As Kershaw explains in the introduction: "The goal for this project was creating a low cost, 3 axis (X-Y-Z) control box. The control system described here will cost approximately $250. All of the parts can be purchased online or locally and only hands tools, a drill motor, a dremel style tool, and a soldering iron are required for assembly." The 25-page documents includes step-by-step instructions with full-color images, a list of materials (and where they can be purchased), and photographs of what the final product should look like when the exercise is completed.