In the digital age, rapid advancements in manufacturing technologies have made technology selection decisions a strategic problem for businesses. For micro-enterprises in particular, choosing the right technology under limited resources is critical for gaining a competitive advantage and ensuring the sustainability of production processes. This study aims to identify the strategic criteria that micro-enterprises consider when selecting 3D printers and to prioritize these criteria using the FUCOM method. In this regard, first, a literature review and sectoral expert opinions were synthesized to define seven strategic criteria that are decisive in 3D printer selection decisions. In the next stage, semi-structured interviews were conducted with 10 micro-enterprise owners actively using 3D printing technology. The identified criteria were presented to the business owners, and they were asked to rank these criteria according to their importance. The data obtained were analyzed using the FUCOM method, and the analysis results show that micro-scale businesses give the highest priority to the criterion of print quality and dimensional accuracy (1) when choosing a 3D printer, followed by price (2), ease of use and Wi-Fi connectivity (3), print speed and production time (4), flexibility in material and filament use (5), maximum print volume and physical production capacity (6), and waste amount (7). These findings reveal that micro-scale businesses consider 3D printers not as a cost-focused investment tool, but as a strategic technology that provides production quality and operational continuity. In addition to contributing to the limited number of studies that address 3D printer selection decisions in micro-scale businesses with a multi-criteria approach, the study is expected to provide outputs that support decision-making processes for business managers and technology providers.