I have 2 drawings that I am trying to get ready for printing in 3D. It seems that I can get them converted to the required STL format but am having a problem getting them repaired for printing. I am using an Autodesk 30 day trial version of NetFabb to perform the repairs but don't really have a clue what to do when I get there. Has anyone had any experience in performing these repairs; if so, if I post the files can you repair them and repost them or send them directly to the guy that is going to do the printing? If you are familiar you already know that the repair does not have to be NetFabb, (your choice)