MeshEdit
https://www.food4rhino.com/en/app/meshedit Meshedit is a set of components which extend Grasshopper's ability to work with meshes.included components:utilities:Mesh from pointsMesh cull unused verticesMesh flipMesh unify normalsMesh weld vertices with thresholdanalysis:Mesh AreaMesh VolumeMesh explodeMesh convert quads to trianglesMesh add attributesMesh extract attributesMesh find naked edgesT..