## 1 Introduction
The 3D printed brackets not only weighed up to 35% less than the original traditional form and were 40% stiffer, but they were also built as a single part to replace an assembly consisting of numerous metal components and up to 44 rivets saving material waste and making assembly easier [22]. The CubeSat bus construction requires about 150 pieces to be machined in typical production. The United States Air Force Institute of Technology (AFIT) employed nTopology to lower the weight and production time of a CubeSat bus using AM: the obtained bus fabricated in Inconel 718 was 50% lighter and  
Figure 1: SSMS representation with different types of small satellites (copyright of [PERSON]). 20% differ than the original aluminum [PERSON] [23]. Furthermore, geometrical inaccuracies and undesirable misalignments or deflections of these components may exceed acceptable [PERSON] [24]. The AM redesign can reduce a multi-part assembly made up of numerous components into a single part with the same operational functionality [25; 26; 27]. With reference to Laser Powder Bed Fusion (PBF-LB/M), it is possible to mention some successful cases of high-rate production in the aerospace market. In [28] an engine heat exchanger, traditionally composed of 163 parts, was consolidated into one single object. This way the costs associated with the assembly and the welding, as well as an entire class of failure mechanisms and their nondestructive evaluation, were eliminated. In [29] 28 fuel nozzles were printed via PBF-LB/M finding an optimal configuration that reduced the cost savings and helped to solve problems of fuel mixing and fuel emissions. When compared to traditional manufacturing processes, the GE9X heat exchanger offers a 40% mass reduction and a 25% cost reduction while integrating 163 components into a single part. Of the most notable advantages of PBF-LB/M is the capability to manufacture parts with complex geometry such as lattice structures. They are cellular structures with periodical configurations of unit cells in two or three dimensions. The lattice structure might give good characteristics, including a superior strength/weight ratio, good thermal properties, and acoustic shielding, making it perfect for high-profit industrial objectives such as aerospace [30]. The more important feature of lattice structures is the best structural efficiency per unit weight [31]. In [32] the pumping system holder for the Dust Complex payload for the ExoMars 2022 mission's Surface Science Platform was designed and fabricated in PBF-LB/M. Sensitivity and optimization tests on AMed components based on simple honeycomb cells were carried out in order to discover the most promising arrangement for a space instrument's pumping system holder. In terms of dynamic behavior and strength vs design loads, several shapes were examined. The optimum option was a honeycomb thin-walled structure (0.3 mm thickness), whose topology and elementary cell size was adjusted to decrease bulk while meeting all design criteria. According to the tests, cast alloy displays lower ultimate tensile stress (240-270 MPa) than the AlSi\({}_{9}\)Cu\({}_{3}\) alloy manufactured by AM (374-440 MPa). The evaluation revealed that hexagonal honeycomb lattice configurations provide the greatest specific stiffness and strength. In [33] a honeycomb satellite panel was substituted by a lattice sandwich revealing improved benefits in terms of stiffness, strength, connections, special-shaped structural configuration, lightweight, and fabrication cycle. The lightweight satellite construction which is built entirely of lattice sandwich panels using PBF-LB/M shows a weight-to-satellite weight ratio of 7.7%, which is far superior to the 15-25% ratio of minisatellites (satellites weighing 100 to 500 kg) composed of standard aluminum honeycomb sandwich panels. When this satellite structure is subjected to a high frequency loading with an amplitude equivalent to the real-world service situation, the unaltered eigenfrequencies demonstrate that no structural damage occurs during testing.