This document provides instructions for building a DIY microscope from laser-cut parts and a webcam. The summary is: 1. The instructions guide the reader through each step to assemble the microscope parts, including unsoldering an LED from the webcam, stripping and soldering wires, assembling the slider mechanism, and securing the webcam and lens in place. 2. Tools needed include a soldering iron, tin remover, screwdriver, pliers, and stripping pliers. 3. Once fully assembled, the DIY microscope can be used with the webcam to view samples through the upside-down mounted lens.