Implicit bodies often need to be surface-meshed for the purposes of simulation, exporting to other formats, and manufacturing. Since implicits are defined by continuous fields, a few steps need to be taken to properly discretize them and generate a clean mesh. Note that in nTop we refer to surface meshes as simply ‘meshes’, while volume meshes are specified as volume or solid meshes. Information on volume meshing can be found here.
Mesh from Implicit body
Whenever meshing an implicit body, the first step must be to use the Mesh from Implicit Body block. The feature size input of this block should be less than the minimum feature size you want to capture in your implicit body. Because all future meshes will be based on this, you should consider using a very small feature size for intricate implicit bodies, and then remesh to a coarser mesh later. The adaptivity input takes in a number greater than 0, which controls if mesh elements will increase in size over flat areas. Low values will result in a more uniform and accurate mesh, while larger values will result in lower element counts.