On one of the forums I was asked about how to handle big wounds on trees and if there is good example how it was done on some of my trees. On collected trees from wild it is one of the hardest task from design point of view, in my opinion. Complete healing of big wounds is hardly possible. Only power tools, Dremel, fire and natural ageing process are the right answer. With smaller wounds healing is possible. So here are few pictures of wound healed on small Oak, tree collected from wild in 2010. Wound is closed completely by now.