And for exotic cut lines cut maybe Su4_Slice by Suforyou
Last version 2.0 makes "solids" at the Line cut so volumes are closed ! ☀
Random Painter By Chris Fullmer (not sure that it's works in 2014! 😒

Exploded View by CPlassais / Pilou
here V1

http://sketchucation.com/forums/download/file.php?id=123591&t=1