I recently saw http://vimeo.com/42085064, which is a video about geometry created by recording snapshots of a 3d shape as it moves in space. This is easily doable in blender using some softbodies, and applying the movement every x frames. The problem is that it won’t be printable, because of overlapping faces. Is there any way to combine all the meshes created by this method to make one solid mesh? (Something 3d printable). A boolean modifier completely fails at this.