How to merge two sculpted meshes? Is it possible to merge two sculpted meshes?
If you want to make a 3d printable mesh, you want to make it hollow... so you copy the mesh and scale it down, inwards. Then you make faces between those two meshes... Is this realistic to make with an complex sculpted mesh, or should this be done, before you make the complex sculpting? Or should I retopology?
Also I sculpted the face/head and the hair in two seperate meshes, also the eyes are seperate... how do I efficient merging all those meshes into one?
Many thanks and happy modeling :)
You may use a Direct Union option of a BoolTool add on.

Activate it in User Preferences (Ctrl+Alt+U).


In my case I have four objects with different vertex count. Some of them were sculpted, some of them not.


In Object Mode select all the objects and press Shift+Ctrl+Num+ (or press Spacebar and type 'direct'-->Direct Union). 


After this operation you'll achieve a joined mesh ready for sculpting.