With the socket screws tight, there is no real chance of them rotating. I could look into a pin, but I don't think it’s really necessary.
The 15mm rods are a set length at about 75mm and they slide into the holes on the plate. In the picture you see they are fully inward, they then can extend out as you pull them from the plate around 1.5" I guess. You could have the rods shorter, but you would sacrifice the potential reach of the 19mm bars which are currently 7" long. You could always have two sets of bars, one short and one longer, they would only take a matter of seconds to unscrew and re-assemble.
How it's set up now seems to cover a good range for various lenses. With everything nipped up tight, it’s all very solid so I wouldn’t worry in that respect.
The 19mm bars are aluminium tho, so obviously not as strong as steel, but this bracket is designed to be partially braced by the lens support bracket which would totally eliminate any slight ability to bend the bars outward or inward. You would only use this bracket in such a configuration anyway.
I’m going to try and get a picture of the bracket in use in the next day or so.
Any other questions welcomed.
I’ve had a few people off forum ask about this, might be worth getting some prices and doing a run if anyone is interested.
It's a cool looking bracket.
I have a couple of questions.
Do the 19mm rods have pins in them to keep them from rotating? I might like to mount motors on them as well so they would have to be very rigid.
Can the 15mm rods that go into the plate be pushed flush to the plate to avoid additional torque and vibration?
Otherwise like I said, it's a cool looking and potentially useful bracket.