I had the chance to build another swivel frame for a rotating cabinet, based on the design of my first ones built earlier this year. The customer liked the ridgidity and smooth motion of the hardware so much, that he is planning to use this concept in other projects. This one is for a single, rotating bookcase, to conceal a hidden entry into a safe room. Here are some pictures of the finished swivel frame.
If you are inetersted in more details, feel free to check out the following in my May 2017 archive folders: