I have been crerating the model shown in figure 1 and have had some trouble with the curve driven pattern function. All of the pictures have a section view so it can be clearly seen. Firstly I have made the extrusion (picture 2) where the shape was rotated 5 degrees away from the perpendicular line to the curve. I also made the upper left hand point on the shape and the curve a coincidence. After using the function, the repetitions slowly creep above the curve line (pic 3). I have changed the allignment method to 'tangent to curve' as well.  How can this be resolved. Any help would be great! Cheers