## 1 Introduction
ABS-like resins are highly regarded in the industrial sector for their adaptability and superior characteristics. Often utilized in 3D printing, these resins enable the production of components with decent detailing, robust strength, and effective functionality. Their extensive utilization encompasses the fabrication of computer consoles, domestic materials, components for both the interior and exterior of vehicles, luggage items, and a variety of piping systems [54]. ABS-like resin material is accessible for commercial purposes; however, it lacks extensive mechanical research, resulting in limited available literature [47]. In the paper [47], [PERSON] et al. conducted an extensive mechanical examination of both ABS and similar polymers produced via additive manufacturing techniques such as FDM, SLA, and DLP. The research utilized test samples with a complete infill density and a print orientation of 90 degrees. The mechanical characteristics were evaluated using tests for tensile strength, bending, and compression, as well as analyses of the morphology, size precision, and Shore A hardness. The outcomes of the tensile experiments revealed that the toughness offered by the FDM technique constitutes roughly 40% of that attained through DLP, with the elongation at break in FDM reaching 37% of DLPs. Furthermore, the ultimate tensile stress of SLA was observed to surpass that of FDM by an estimated 27%. As highlighted through a review of the relevant scientific literature, ABS filaments have been well-researched through various mechanical tests. However, in the case of ABS-like resin, the author of this article notes and identifies a scientific gap in this domain. Various factors influence the final product's quality, making continuous material testing in different 3D printing processes crucial. Drawing from the author's expertise in the domain, there appears to be an absence of systematic comparative studies in the scientific literature that evaluate the mechanical characteristics and properties of ABS materials printed with FDM and SLA techniques, particularly focusing on varying infill densities (30% and 100%) in the samples. Key benefits of incorporating infill in 3D-printed objects are the reduction in material usage, decreased weight of the final product, and acceleration of the manufacturing process, all of which significantly influence the overall cost of the end product. This study aims to address this gap by investigating and comparing the mechanical parameters of ABS materials (ABS filament and ABS-like resin) produced through two popular 3D printing technologies, FDM and SLA. Variations in 3D printing technology and infill density can significantly impact the mechanical properties of ABS materials, which is crucial for industries relying on these materials, affecting product safety and durability. In this research, the researcher selected 30% and 100% as the infill density benchmarks for evaluating the mechanical characteristics of ABS materials. Using 100% infill density allows for an effective comparison between the mechanical properties of the test samples and the manufacturer's specifications for ABS materials. The choice of 30% density is based on a thorough examination of the existing scientific literature, serving as an additional standard for assessment. The focus of this research is on examining how changes in 3D printing techniques and infill density influence crucial mechanical properties, such as Young's modulus, tensile strength, strain, the nominal strain at break, peak displacement, and the highest force at break. The method of tensile testing was used to assess these essential parameters. The research also includes a comparative analysis of the measured mechanical parameters against the manufacturer's specifications for ABS materials. The findings show significant disparities in mechanical efficacy between specimens printed using FDM and SLA techniques. Notably, SLA-printed samples exhibited enhanced mechanical properties, especially in terms of tensile strength, displacement, and Young's modulus.