The increasing accessibility and falling costs of printing materials and equipment have led to the widespread acceptance of rapid prototyping technologies, especially 3D printing. This article delves into the investigation of specific mechanical strength properties of 3D-printed elements, with a focus on PLA material. While such properties may be less critical for elements serving solely as models for subsequent manufacturing techniques, they become pivotal when 3D-printed components are integral to the functionality of a device, such as those in unique scientific equipment. The research centers on standardized samples printed with low-cost PLA material, utilizing an affordable 3D printer. The study systematically explores the impact of key parameters, namely, infill density, extrusion temperature, and layer height on the tensile strength of the PLA material. By comprehensively testing these parameters, the research aims to provide insights that enable informed decision-making for the printing of durable elements, whether on non-professional printers or through professional manufacturing services. This research contributes valuable knowledge to the growing field of 3D printing, offering practical guidelines for optimizing PLA material properties in diverse printing scenarios.