Quote Originally Posted by Toolmaker51 View Post
Took a minute to comprehend this set up. But your really high quality photos enlarge with good detail... The rods distribute side pressure, the wedges create down pressure via the cord binding, tape keeps glue from adhering the assembly sticking to the supports.

And google clearly revealed alternate process of 'rubbed joints', a term formerly unknown to me.
Thank you for taking the time to investigate it, perhaps more images would have been helpful.