I squared it using an actual square and M666 X1.75 gets it as close I can tell with paper n pen. I would like to move the stop block a notch 2mm and go with a smaller correction in the opposite direction,would that be (M666 Y.25) ?I leveled the bit to the table with the feeler gauges. And set the dewalt perpendicular to the table, with the thingy. When I was in machining this piece out of the blue foam, I tripped over the power plug and cut power to it, but I was able to restart the cut in the same exact place and finish it. The crack in it is from double sticky tape to the table (oops, I won’t do that again with foam if I actually want the peice), I don’t have an actual waste board yet. So I didn’t cut all the way through. Anyway I don’t understand everything I’m doing with ESTLcam yet, I was just copycating your tutorial.