Tube Clamp with Protuberances

This is a simple clamp that facilitates attaching other clamps to a pole. I had someone donate a nice floor lamp to me, minus any of the bits except the stand and the base. I use little spring clamp lights for photography, but those clamp will slide right off a slick pole - not as bad if you are using a gorillapod or a reuseable rubber twist tie... but still. This is parametric and can be adjusted for any diameter of tube.

This design uses pan-head bolts/machine screws and hex nuts to ap