Help for building heavy duty rotating platform

I'm currently trying to build some motion control kit for video production using large RED cameras. These would weigh between 5-10kg.

I posted another thread about a slider, which you can find below, but here I wanted to pick some brains about building a rotating device.

Advice for heavy duty motorised video equipment

Essentially, I'd like to build 3 small rotating platforms. These platforms could then be used individually to rotate products, small sets, joined together to rotate items in more complex ways (imagine moving a watch in two different axes), and joined together to form a pan and tilt head for the camera like the link below.

Stage R: Rotary Pan and Tilt Bundle with Stepper Motors (add on)

I can't see anything on Openbuilds that would work but I spoke with someone at Igus who said the link below would be perfect. It will provide all the torque I need, more than I need, and can be rigged up in lots of ways:

robolink® D robot joint, size 20, symmetrical

It sounds perfect but it's expensive and I wondered if anyone can think of another solution.

Thanks in advance for any advice you can give.

 

Thanks for the reply,

I had seen some right angle worm drives before and wondered if they might work. Is this the sort of thing you meant from McMasterCarr:

McMaster-Carr

I'm in the UK but I've seen plenty of similar things.

The second approach of balancing the load is fine for using the units for panning and tilting a camera but not so useful when using them for moving products/items. In that scenario the load probably won't be balanced, sometimes yes sometimes no, and I'd love to make this system as flexible as possible, i.e. not just a camera system but rather a set of motors which I can use in lots of different ways.