Help!! extrude-cut on Lofted Bend

I am designing a plow for a locomotive. Similar geometry to a snow
plow on a truck. I need to make a cut out for an access door on the
bend of the upper portion of the plow. I have tried a few things-
(unfold, cut, and then try to fold) gets an error saying some features
cannot be folded. I would like to make the cut on the flat
pattern(layout). Any advice?


Thanks,
Eric

 

I figured it out.....I had an extruded-cut through the lofted bend in
the folded state. Since that cut was there it gave an error for a cut
in the unfolded state.