Hello , sorry for my english , I'm from Russia . Very cool stuff your program , but there are a lot of questions . I hope with time they will explain everything . I test your program for a possible purchase . solidwokrs version 2016 sp3 power surfacing v3.01.0075 My Problem is: when you open obj file is first loading , at the end or otkryvaetsya empty workspace without models or all coordinates with zeros . help me understand what I'm doing wrong. Thank you very much for your response and understanding .