I have the honeycomb pulled all the way to the front. But when ai set the 12 x 12 basswood sheet all the way to the front then the laser won't go the 12 inched to the back. The 12 inches is to long. So I overlap the wood with the edge of the honey comb by a cm and when I try to start that way it says I'm off the cutting area. How can I cut the full 12inch sheet?  Thank you.