[tstom]

Use flow5axis locked to 4 axis out put for tool control use "to a point" put a point at the center of your axle and pick that after you click the "to point "radio button
that will keep your y axis locked on center


If this isn't what you want post your file and we'll figure something out

Thought about this some more .....you could also use contour with axis substitution if you don't want to use sufaces to drive the tool