Hi everyone,
I’m fairly new to Blender and would really appreciate some help from this amazing community. I’m trying to figure out the best way to rig this motion to a locator/null. Drivers in Blender are still pretty new to me, and I’m working on wrapping my head around them — though without much success so far.
Could you describe the motions of your parts?
In your file, is difficult to see which part will move and apply forces to the other parts… for example, if the PinShaft rotates, and it’s linked to Base1, which in turn is surrounding the OutputShaft; then everything would rotate the same way as one single piece. 
Is there something we’re missing?
About Drivers: They simply do what their name says. A Motion from one object drives the motion of another(s). A bit of math is normally required, depending of how the motion is ‘transformed’, but that’s it.
Sorry, I wanted to include a link to this animation. However looking at it closely I’m not sure it’s correct .
The first problem I can see, is the Origins and Hierarchies are not correct.
For example, Base1 and Base002 are fixed, and the rest of the parts should be linked to these ones (the PinShaft to Base002 and the Slotdisk to Base1).
Having those corrected, will make the animation easier.
Then the driver would be set to the Rotation_Z of the Slotdisk, with some function based on the Rotation_Z of the PinShaft.
I haven’t figured what that function should be exactly, but it might involve a clamping that rotation, and scale the interval to 2*PI.
Something like this:
What’s not correct about it?
Please refer to the video.
I think I’m explaining it step by step.
That was cool. Learned a couple of things about that other driver window I never bother with LOL.
My approach, I was thinking was using an action constraint with many similar setups.
Also a speed controller.
That was a very informative video!
That’s the ticket ! Thank you so much !