My Carvewright struggles with DXF cuts sometimes...it will start cutting inward with each pass (which creates a 45 degree angle) It's failing more and more on cut paths. As it cuts, it cuts in closer than I designed it to with each pass. I am inclined to think that it's a hardware issue. I use pine for almost everything I cut. I have been noticing that that the axis that crosses the board (Left and right) is getting jumpy. This is an issue for me as it costs me material.