Thanks Michael

Marco

Something very simple is to use the helpers : draw any lines perpendiculars & lines to anything then draw your object ;)

And for your last example : Array / Curves /(free form or flat ) can make the trick by lines! ;)

As you already have construction lines on surface, then you can simply create a line or cylinder from the int:



Then perp from the front/side view.

another easy solution is to trim a copy of the target surface, so the trim corner is becomes the target point for orienting. Then offset the trimmed surface, and draw line btween the original corner and the offset corner. Now you have a "normal" line to do the orienting...

jonah