This document discusses the design and fabrication of a pipe inspection robot. It describes how robots can perform dangerous and labor-intensive inspection tasks. The document then discusses different pipe inspection methods and focuses on visual inspection. It provides details on the design of a pipe inspection robot prototype, including its parameters, links, motion calculation and applications. The robot is intended to inspect the interior of pipes ranging from 140-180mm in diameter to detect corrosion, cracks or other defects. Limitations and suitable applications are also covered.