## 5 Conclusions  
This paper described the design and execution of an elaborate experiment to generate valid and reproducible data on dimensional and geometric accuracy in LB-PBF/P. The following conclusions can be drawn from the analysis:  
* The experiment design described herein enabled the analysis and characterization of variation between the different builds and between various positions in the build chamber;* The variation between the builds appears to be negligible, and the three builds can be compared without loss of validity;
* There is a slight trend of higher accuracy towards the higher levels of the builds (higher z-coordinates), but this trend is not found to be statistically significant;
* The variation in the xy-plane is significant, with considerably larger geometric and dimensional errors towards the rear of the machine. No efforts are made to explain this discrepancy. The current research warrants further investigations into variation management in LB-PBF and especially the control of noise factors to ensure valid and reliable results in future experiments. The analysis presented in the current paper is merely scraping the surface of the data generated from the experiment, and thorough analysis is left for future work. Moreover, the data enables the development of numerical models for the prediction of geometric and dimensional accuracy. The next step of the current project involves further analysis of the data to construct predictive models for geometric and dimensional accuracy. The additional specimens produced through the described experiment have not been inspected and, therefore, constitute a major source of unrevealed data that can be utilized to further improve the understanding of LB-PBF/P. Conceptualization, T.L.L., and O.S. ; methodology, T.L.L., and O.S. ; formal analysis, T.L.L. ; investigation, T.L.L. ; data curation, T.L.L. ; writing--original draft preparation, T.L.L. ; writing--review and editing, O.S. ; visualization, T.L.L. ; supervision, O.S. ; project administration, T.L.L. All authors have read and agreed to the published version of the manuscript. This research is funded by the Norwegian Ministry of Research and Education through the PhD-scholarship of [PERSON]. Not applicable. Data Availability StatementData, artifacts, and all code for analysis are available online through a repository at GitHub: [[https://github.com/TheThorb/Leirmo_Expl_Publication1](https://github.com/TheThorb/Leirmo_Expl_Publication1)]([https://github.com/TheThorb/Leirmo_Expl_Publication1](https://github.com/TheThorb/Leirmo_Expl_Publication1)). The authors would like to acknowledge the contributions of [PERSON] in the planning of the experiment and [PERSON] for facilitating the experiment execution. * ISO/ ASTM (2015) ISO/ ASTM 52900:2015(E). _Standard Terminology for Additive Manufacturing--General Principles--Terminology_; ISO/ ASTM: West Conshohocken, PA, USA, 2015. * ISO/ ASTM (2019) ISO/ ASTM 52911:2019(E). _Additive Manufacturing--Design--Part 2: Laser-Based Powder Bed Fusion of Polymers_; ISO/ ASTM: Geneva, Switzerland, 2019. * [PERSON] (2016) [PERSON]; [PERSON]; [PERSON] Optimized build orientation of additive manufactured parts for improved surface quality and build time. _Addit. Manuf._**2016**, _12_, 314-320. [CrossRef]
* [PERSON] and [PERSON] (2001) [PERSON]; [PERSON] Manufacturability analysis of flatness tolerances in solid freeform fabrication. _[PERSON]. Mech. Des._**2001**, _123_, 148-156. [CrossRef]
* [PERSON] (2011) [PERSON]; [PERSON] Optimal part orientation in Rapid Manufacturing process for achieving geometric tolerances. _J. Manuf. Syst._**2011**, _30_, 214-222. [CrossRef]
* [PERSON] et al. (2016) [PERSON]; [PERSON]; [PERSON]; [PERSON] Feature based building orientation optimization for additive manufacturing. _Rapid Prototyp. J._**2016**, _22_, 388-376. [CrossRef]
* [PERSON] et al. (1995) [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON] Multi-objective optimization of part-building orientation in stereolithography. _Rapid Prototyp. J._**1995**, \(1\), 12-23.