I have the same problem. Everything cuts to the left. Table is square, blades aligned, a zero tolerance board and yet no matter what I try everything wants to wander to the left. I even thought of cutting off my left hand, but that would make going to the can difficult..not impossible, but difficult. I think it's possible that the pinless blade adapter doesn't mesh with the lower adapter. They're two different types. One is a dremel quick change adapter and the other their regular pinless adapter. I think that the quick change adapter is made for people who just want to cut things to the left. I guess I'll call the woman with the sexy voice at dremel and order another adapter or maybe scroung around and find a chunk of steel to mill one with a better tolerance..