Ring Roller Plans?

[Olddaddy]

So, I need to build a ring roller. I know the cheap Chinese outlets have them, but that's not for me. I've seen some nice ones online, but not any good plans. I mean, I can build one from looking at a picture, but knowing the spacing etc. would be helpful. I have a project that needs 48" and 24" balls made from thin aluminum flat bar, should be easy enough. Any good plans out there?

 

[dtsh]

Does this help?

 

[Olddaddy]

Well, it’s a remarkable piece of work, but left me feeling decidedly inadequate.....