Yeah that's awesome. Might need to do so if I am struggling to tune up the stepper. You're a legend BUGGAR, the wheel hub suggestion was a life saver!!!!!
Only thing I am struggling with now is how to run the wiring through the center of this structure to connect the microprocessor/power supply...
You guys have been so helpful, thank you. Managed to find 3 working wheel hub assemblies at various mechanics here in Berlin (after much searching) and here is the super first round prototype of the assembly.
Seems to be heading in the right direction!!
https://vimeo.com/173743292
The board...
Yeah I did look at the option of using a lazy Susan bearing, I just hadn't been able to find easily available sizes at the diameter of the outer ring (around 1400mm).
The ball supports idea is a good one too, I had considered putting the rings on a surface plate but for some reason got to a...
That should be more than enough for my relatively weightless spinning table then!
One final question on the actual mechanics of the wheel hub assembly... so if I mount the inner shaft onto my 'trunk', the outer assembly which is normally what you anchor onto the wheel assembly will then spin...
You guys are amazing, really. I can't thank you enough.
In regards to this most recent point about moment load and thrust bearings - does using the wheel hub bearing assembly take care of all of this? I imagine it is totally self contained and all I would have to do is mount the inner shaft...
Ok that's starting to make total sense now, except one piece.
How do you mount the mount the machined ring to the bearing?
Think I may just buy a hub bearing for ease of use, but now I'm just desperate to make sense of your awesome solution!
Thanks so much guys
Jack
Wow - thanks everyone. This is so useful
This sounds really great but I'm having some trouble visualizing it... specifically the part about 'inside the shaft ring'. So the machined ring is what I weld the arms onto, and inside of that we use a plain or roller bearing which sits around the...
Thanks so much for the response guys - so I could weld supports onto the thrust bearings and have that sort of vertical weight and they would be ok? It would only be a few kilos... probably the heaviest would be a 300mm wide ring of 30mm ply at 1300mm diameter...
Hi all,
Brand new to the forum, lovely to meet you all.
I am currently undertaking a project to build a large round table composed of a series of concentric rings that all spin independently.
The basic idea is, there is a single stepper motor attached the small circle in the center of the...
