This document describes the design and components of a jig saw machine. It discusses the frame, saw, cutter, motor, and bearings that make up the machine. The frame provides support for the mounted parts. The saw is the main cutting element. A circular cutter is used to cut different materials using a rotating motion. An electric motor converts electrical energy to mechanical energy to power the saw and cutter. Bearings are used to reduce friction between moving parts and constrain their motion. The jig saw machine can make both straight and curved cuts in materials like wood, plastic, and metal. It requires simple maintenance and has advantages like easy handling, repair, and replacement of parts.