## 5 Conclusions  
1. This is the first study, to our knowledge, to systematically investigate the mechanical and dimensional characteristics of MEX-printed PEEK samples printed at the point-of-care. The samples were printed in several orientations and at various positions spread across the entire build chamber and an assessment strategy was developed to study the influence of the printing parameters on the mechanical and dimensional accuracy attributes of the printed samples. Mechanical strengths of the MEX-printed PEEK samples were evaluated by tensile tests. In contrast to previous studies, the non-thermal printing parameters were chosen as an independent factor throughout the experiments. Based on our findings, the following conclusions have been drawn from this study: the tensile strength of the MEX-printed PEEK samples was in the range of 89.748-101.82 MPa, while the tensile modulus values were in between 3227.22 and 3815.41 MPa, respectively.
2. The tensile tests showed that printing in XY and XZ orientations had no significant influence on the mechanical properties of printed parts. In addition, altering the position of the objects/test samples and the height of printing in the Z-direction did not influence the mechanical strength of PEEK-printed parts.
3. The dimensional attributes and reliability of printing were also quantified and reported to be under 0.2 mm deviations.  
Up until now, there has been no study for testing the physical attributes of MEX 3D-printed outputs, specifically for mechanical strength and dimensional accuracy attributes printed at the point-of-care. We believe that the approach and findings presented in this study are an important step toward establishing a framework for developing standardized tests for understanding these relevant characteristics prior to fabricating PEEK PSIs at the point-of-care.  
**Author Contributions:** Conceptualization, P.Z. (Paridokht Zarean), P.M., P.Z. (Parichehr Zarean), D.S., M.d.W., F.M.T. and N.S.; methodology, P.Z. (Paridokht Zarean), P.M., P.Z. (Parichehr Zarean), D.S., M.d.W., F.M.T. and N.S.; software, P.Z. (Paridokht Zarean), P.M., P.Z. (Parichehr Zarean), D.S., M.d.W., F.M.T. and N.S.; validation, P.Z. (Paridokht Zarean), P.M., P.Z. (Parichehr Zarean), D.S., M.d.W., F.M.T. and N.S.; formal analysis, P.Z. (Paridokht Zarean), P.M., P.Z. (Parichehr Zarean), D.S. and M.d.W.; investigation, P.Z. (Paridokht Zarean), P.M., P.Z. (Parichehr Zarean), P.M.T. and N.S.; resources, D.S., M.d.W. and F.M.T.; data curation, P.Z. (Paridokht Zarean), P.M., P.Z. (Parichehr Zarean), D.S., M.d.W., F.M.T. and N.S.; writing-original draft preparation, P.Z. (Paridokht Zarean) and P.Z. (Parichehr Zarean); writing--review and editing, P.Z. (Paridokht Zarean), P.M., P.Z. (Parichehr Zarean), D.S., M.d.W., F.M.T. and N.S.; visualization, P.Z. (Paridokht Zarean), P.M. and P.Z. (Parichehr Zarean); supervision, D.S., M.d.W., F.M.T. and N.S.; project administration, D.S., M.d.W. and F.M.T. All authors have read and agreed to the published version of the manuscript.  
This research received no external funding.  
Not applicable.  
The authors thank [PERSON] and [PERSON] from Kumovis GmbH (Munich, Germany) for their support.  
The authors declare no conflict of interest.