I just got a Festool Kapex 120 sliding compound miter saw. The first two cuts on it didn't go so well. A dowel was marked at exactly 3". When I made the cut, the right laser was directly over the 3" mark. The cutoff is to the right of the blade. After I made the cut, the cutoff piece was 3-1/16" long. Just to be sure, I did it again, and I got the same result. Either the laser is misaligned, or I don't know how to use it. As a beginner, I'm not into calibrating new, very expensive tools, so I'd like to understand what's happening. Thoughts?