How can I pattern a bunch of holes along the outline of something that's not straight?  I'm trying to make a vacuum form mold for a product of ours, and it would be very beneficial if I could get a pattern of holes offset from the edges of the part.  I'd rather not do a linear pattern, and sketch driven patterns don't seem to accomplish this either.  I try the curve driven pattern, and get an error about "all segments of the profile must be tangential and they should be of one contour only".

Thanks in advance for any help.