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The fabricated 3D composite filaments are processed and evaluated for wear property using the pin on disc technique in a Fused Deposition Model (FDM). When measurements are taken under various machining conditions such as load, track diameter, and speed, Grey Relational Analysis (GRA) is used to optimize friction strength and wear rate. Some relevant similarities of those other metrics are found and documented using Analysis of Variance (ANOVA). It is notable that the applied test load appears to have a greater contribution of about 76 percent and appears to have a high effect on the sample's end quality. To check the findings, a validation experiment is also carried out.