Some people will say that a hive turntable is completely unnecessary - but I think they're brilliant, especially when running a Cloake Board stack ...
Here's the first one I made from a Lazy Susan bearing and some scrap wood:
The second one I ran for a few years in skeleton form:
But as I much preferred working with the first - I eventually got around to making a second similar in construction to that one:
So why do I have more than one Cloake Board rig ? So I can employ one using proven methods of raising queens, while running experiments (and persistent failures - such as the Nicot Laying-Cage method, which I'm determined to solve !) on the second.