Board Thread:Questions and Answers/@comment-68.248.233.182-20130301141000/@comment-62.116.68.230-20130309215428

Unfortunately not in this version. But it is possible to build an obsidian pipe in front of it (respectively, let the turtle go in front of it) and then let the turtle drop the items into it. However, you will need to do this with lua, using turtle.drop. The excavate command has not implemented something like that yet.