When I am standing in the middle of my blockmaker and activate it it throws me beside it if I am on the left half of the middle. If I am on the right side of the block it throws me as far away from it as it can. The "where you stand" on the right side seems broken. I verified this behavior in a machine room, so it isn't just my blockmaker.
As a different side note, when I went from the machine room in Otter Lane to my /home and came back I was thrown to Burnabee instead of Otter Lane