This article explores the transformative role of monitoring systems in enhancing the precision, efficiency, and adaptability of 3D printing, focusing specifically on Fused Deposition Modelling (FDM) technology. Real-time monitoring tools, such as Raspberry Pi cameras integrated with OctoPrint, provide users with the ability to remotely oversee critical printing parameters, including temperature, humidity, and print progress. These capabilities significantly mitigate the risk of errors, minimize material wastage, and improve overall print quality. The study delves into both integrated and retrofit monitoring solutions, outlining their distinct advantages and limitations. Integrated systems, often tailored to specific printer models, deliver exceptional stability and reliability, making them ideal for professional and industrial applications where consistency is paramount. Conversely, retrofit solutions offer greater flexibility and cost-effectiveness, as they can be adapted to a broad spectrum of printers. This dual analysis underscores how monitoring technologies cater to diverse user needs, driving innovation and enhancing the accessibility of high-quality 3D printing processes.