## 4 Conclusions  
In this study, horizontal, vertical and radially graded lattice structures were compared with uniform structures in terms of deformation behavior, mechanical properties and energy absorption. The main conclusions were obtained as follows:  
* According to the results of the compression test performed in this study, the highest compressive strength value was obtained in the uniform configuration of the rotation lattice structure. When only FGLSs are considered, the best results were obtained in the RG configuration of the rotation lattice structure. The HG and RG configurations of the chiral lattice structure stand out for their high energy absorption.
* It was found that the energy absorption capacities of rotating and re-entrant FGLSs were more successful than those of uniform structures. The energy absorption potentials of FGLSs in chiral lattice structures can be further enhanced with improvements to the design.
* It was found that the dimensional deviation in uniform lattice was less than that in gradient lattice. The chiral structure was superior in geometric accuracy and dimensional completeness.
* The problem of the incomplete dissolution of the support material, which occurs in the post-production process with MJ, leads to dimensional deviations, especially in thin geometries. Therefore, the largest geometric deviations occurred in thin geometries. CAD design has an impact on dimensional accuracy, which complicates the solution of the support material in rotation lattice.
* The connection problems in the re-entrant lattice structure showed that geometric features can cause problems during fabrication. This was due to the inability to create strong strut-end connections in the re-entrant structure.
* Consistent with the literature [63], the results showed that the internal design of lattice structures is decisive in achieving a more ideal energy-absorbing structure.
* The maximum energy absorption capacity value (19.381 KJ) and the maximum SEA value (3649.905 KJ/kg) were obtained from the uniform configuration of the chiral lattice structure.
* Generally, the best SEA performance was obtained for chiral structures. The results showed that chiral lattice structures can be used for applications where high toughness and energy dissipation are expected.
* This study shows that FGLSs have significant advantages over uniform structures in terms of dimensional accuracy, mechanical strength and energy absorption and demonstrates the potential of these structures for industrial applications.  
Conceptualization, N.T. and I.S.; investigation, N.T., I.S. and H.G.; validation, data analysis, I.S., N.T. and H.G.; writing--original draft preparation, N.T. and I.S.; writing--review and editing, H.G. and N.T.; supervision, I.S. and H.G. All authors have read and agreed to the published version of the manuscript.  
This research was funded by Gazi University Scientific Research Projects Unit, Turkey (Grant No.: FGA-2023-8673).  
**Informed Consent Statement:** Not applicable.  
**Data Availability Statement:** Data are included in the article. Additional data are available by contacting the author.  
**Acknowledgments:** We would like to thank Basaran Yenilikci Teknolojiler San. Ve Tic. Ltd. Sti. for supporting the 3D printing process of the samples.  
**Conflicts of Interest:** The authors declare no conflict of interest.