About this 3D model

This is a model of a hinge, which been designed to create a soldering tweezer from a couple of soldering irons. More details could be found on instructable page https://www.instructables.com/id/Soldering-Iron-to-Soldering-Tweezer-Conversion/ Short assembly video: https://www.youtube.com/watch?v=KgEa8p2C4Bg Test recording of how it works is here: https://www.youtube.com/watch?v=SLrGismX2_c