Bio-composites were previously created with conventional techniques, but recent developments in additive manufacturing have spurred a great deal of study and use in this area. Additive manufacturing layers materials methodically to create three-dimensional objects. In this study, injection molding and fused deposition modeling were utilized to create tensile specimens from hemp and recycled polylactic acid (PLA), and their mechanical properties were assessed. Furthermore, injection-molded tensile specimens composed entirely of recycled polylactic acid were used to assess their mechanical characteristics and contrast them with those of the new natural fiber-reinforced composites (NFRC). These specimens underwent tensile tests to determine their mechanical characteristics. The results imply that these bio-composites could be used as effective, sustainable substitutes for traditional synthetic fibers and plastics, which are highly hazardous to the environment.