Recently I got a question of how to specify a specific angle on a polyline and get accurate measurements of angles. Here are a couple of tips and suggestions to do that. Also, of you have not checked out Tim’s Podcast of detail view of a detail view, check it out. It’s a very powerful way to get just what you need. http://www.3dmojo.com/2013/08/23/detail-view-of-a-detail-view/
Tod