3-matic by Materialise N.V.
Clean Up and Enhance the Surface Quality of Rough Topology Data
3-matic allows you to create complex, 3D printable internal and external lattice structures that add extra strength, provide cushioning, increase porosity, or simply reduce the weight of your design. In addition, you can easily enhance your design with aesthetic or functional textures, perforations, and patterns.
Since you work directly on STL data, your design is ready for finite element analysis (FEA) or can be used for 3D printing. You can clean up rough data for simulation or convert your mesh back to CAD. 3-matic lets you redesign rough surfaces outputted by topology optimization.