The spot welding machine typically requires a significant amount of power, takes up a lot of space, and is heavy, making it difficult to transport. Additionally, it has limitations in height and the angles at which it can weld. In this project, we aimed to address these issues by redesigning the apparatus. The new design is simpler, lighter, portable, compact, and versatile, enabling welding at any angle and allowing even unskilled workers to operate it with ease and precision. The development of the portable spot welding machine involves two main phases. The first phase includes building the basic circuit, which features a small 1.2 kVA transformer that provides an output voltage of 0 to 2.2 volts, along with a power switch and 2.5-gauge wiring. The second phase focuses on constructing the machine's body and arm mechanism. We utilized modeling software, such as Autodesk Fusion 360, to create the design and build a prototype. To meet our welding specifications, we also designed our own transformer, as standard transformers used in electronics were both expensive and bulky.