AutoCAD Inventor :: Using Interference To Determine Cut Shape?

Is there a way to use interference checks to determine what material needs to be subtracted away from other parts to get the clearance needed? (See Attached) The way I typically handle this is to project the lines from one part onto the sketch of another and proceed accordingly, however as you can see, it didn't work out well in this instance as the face of the part in question is not parallel with the sketch plane in the other..Therefore making the cut location inaccurate.