crewpunch_smallest_shape = crewpunch_shape[0];
crewpunch_biggest_shape = crewpunch_shape[len(crewpunch_shape)-1];
-crewpunch_skew_angle = 2.0; //degrees
-crewpunch_skew_yoff = -0.6; //mm
+crewpunch_skew_angle = 2.7; //degrees
+crewpunch_skew_yoff = -1.1; //mm
// computed