*3.1. Mechanical Properties*

Table 3 shows the results of mechanical tests for the FDM-printed PEEK and CFR-PEEK samples. From Table 3, it is observed that the PEEK samples with reinforced carbon fiber had significantly better strengths than the bare PEEK in the tensile and bending tests (*p* < 0.05). As for the compressive test, there was no statistical difference between the two materials in compressive strength.

**Table 3.** Mechanical properties (means ± standard deviation) of PEEK and CFR-PEEK.


Different lowercase letters in the same column indicate significantly different groups (*p* < 0.05).
