Structural Design and Performance Evaluation of a 3D Printer

Structural design and performance evaluation of a 3D printer, focusing on improving stability, dimensional accuracy, and overall print quality. In many low-cost fused deposition modelling (FDM) printers, structural limitations such as weak frames and improper alignment lead to vibrations and inconsistent results. To address these issues, this study emphasizes the development of a rigid and well-aligned mechanical structure that minimizes unwanted motion during operation. The printer was assembled carefully with attention to frame rigidity, motion system alignment, and extrusion stability. Experimental evaluation was carried out using dimensional accuracy testing, print speed versus quality analysis, and repeatability assessment.