What method do you typically use to design a living hinge in SolidWorks (ex: case with lid & tray)? Here are some SolidWorks links on the topic:

·         Modeling method for complex 'live hinge' part?: https://forum.solidworks.com/message/50973#50973

·         "Flexing" plastic latches and living hinges: http://www.eng-tips.com/viewthread.cfm?qid=104454

As SolidWorks has the multi-body feature, two multi-bodies could be joined by a thin feature controlled by the sketch, or a loft between the two bodies. I found this tip (http://www.profilesmagazine.com/p15/tips_spinal.html) in the Pro-E profiles magazine which could be applied in a similar method to SolidWorks models.

I am wondering how other SolidWorks users model living hinges in the part models and why they use that specific technique (ex: model stability, easier for part redesign, etc.).

BTW, I have Matt Lombard's surfacing book, and the "Joining of Plastics" handbook which contains a chapter on desiging living hinges.