Turns a Solid into a watertight triangle mesh by adaptive Delaunay refinement: large triangles on flat areas, small ones where the surface curves, sharp edges kept exact. Suits CAD-like parts and the STEP chain. A Solid thinner somewhere than half its largest triangle (four tolerances) — a lattice, a thin wall — is refused by name, with where: use Solid to Mesh for it. A mesh that comes out not closed (a gap in the surface, an edge where more than two faces meet, a point where the surface touches itself) is refused by name too, with where and what you can do: thin or tightly curved members can break it above that size, and Solid to Mesh makes such a part. With Remove small pieces on (the default), separate pieces with less surface than Small piece size are removed as meshing debris, and the mesh's Removed pieces and Share removed say how many and how much; above 1 % of the part's volume it warns that the part may have fallen apart.
The Solid to mesh. Required.
Largest allowed distance from the true surface in mm (default 1). Triangles are refined until each one is within it.
Find the Solid's sharp edges and keep them exact (default on). When there are too many edges to protect, meshing goes on without and warns.
Afterwards reduce the triangle count (QEM decimation) while staying within the tolerance; it never makes the surface cross itself.
Remove separate pieces with less surface than Small piece size: specks the sampling leaves where a surface only grazes it (default on). The mesh's Removed pieces and Share removed say what was taken off; above 1 % of the part's volume the block warns that the part may have fallen apart. Off, every piece is kept, and the block says how many.
The size under which Remove small pieces removes a piece, in percent of the largest piece's surface area (default 0.1 %).
Values the block gives besides its output. The editor lists them under Properties, and an input can read one by reference.
The mesh as a Solid, from its baked signed-distance field.
The axis-aligned extent of the mesh.
True when the mesh is watertight: it has no open boundary edges.
True when no edge is shared by more than two faces.
Each distinct mesh edge as a line segment.
How many triangles the mesh has.
True when every triangle is wound the same way as its neighbours.
How many separate small pieces the block's Remove small pieces took off the mesh it made: pieces with less surface than its Small piece size. Given by Solid to Mesh, Solid to Delaunay Mesh and Remesh (0 where none was removed, or where Remove small pieces is off); not listed for other meshes.
True when some pair of non-adjacent faces cross each other.
The volume of the pieces Remove small pieces took off, in percent of the part's: the volume the mesh enclosed before they were removed. Above 1 % the block warns that the part may have fallen apart. Given by Solid to Mesh, Solid to Delaunay Mesh and Remesh; not listed for other meshes.
The tolerance the mesh was made at: the largest distance from the Solid's surface it was made within. Given by Solid to Mesh, from its Tolerance or a connected Print Process (Tolerance source says which); not listed for other meshes.
Where the Tolerance came from: the block's Tolerance (at its default, set, or wired), or a connected Print Process — a third of its Smallest feature, where that is finer. Given by Solid to Mesh; not listed for other meshes.
How many vertices the mesh has.
True when the faces around each vertex form one connected fan.
The position of every vertex.