Hi everyone, I have an stl file of a guitar neck that needs reverse engineered into surface or solid. Catia and Solidworks and Maya and Rhino, Meshlab Freecad various photoscan programs have failed, could be me,ha ha. All I need is the back of the neck and the trasitions from the head and foot like the one picture shown to run an endmill on it without violating the rest of the neck on that side.Any help would be great. Thank you for your time.