InstantSkin

Once rig is builded, InstantSkin panel will be appear if root control is selected. Keep root control selected and control+click meshes you want to skin. After choose which solver you want to use, click InstantSkin.

Warning

Gedodesic Voxel and Heat Map solvers are only available Max 2017 or higher.

Geodesic Voxel:

Designed to work with meshes that may contain non-manifold, non-watertight, intersecting triangles or are comprised of multiple connected components.

Heat Map:

It works better on water-tight models that are fairly uniform.

Envelope:

Max default skin solver.

For more information about skinning solvers please check Autodesk Help.