Eccentric

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this is my mechanical build as it is evolving.
I needed to find out what I needed to do to get it to lock every time without any other parts, and well this version does just that.

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here is the system opened up to make it easy to see how simple this device is.
The silver cap in the center is the "pin" that the ring gear rotates around.

So simply put any sun to ring offset distance that is greater than 20mm will cause this to lock into mesh, there is a side effect of the tensile force between the sun to ring and then the ring to pivot via the arm that creates a very high force, this force is what forces the arm to rotate in sync with the sun gear, with no load or resistance on the pivot then the only force that is made with that is the force to make the arm follow the mesh.

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One point that I will make is that the force is BETWEEN the RING gear and the PIN,, this is kind of very important to understand, that point stays within the closed system and becomes an integral part of the function of the system.

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first pull is very interesting,, a rubber band force evaluation

The first pull was with the input rubber band at 60mm and the output was at 80mm, the system has a natural 5/6 step down to the output,, but both moved about the same 25mm from the spacer/preload stop.

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the green is the input.
The gear-set is a 6/5 step down from input to output so the output arm should be 60mm for the input arm of 50mm for the system to balance in force.
The pic I have posted has the output rubber band at 70mm to have the same amount of stretch, between 40 and 42mm as the input,, resetting and retesting many times has given me the little window on the measurements but they are almost always within about 0.1mm of each other.

This then is a picture of a device in a static test state that is showing a mechanical gain for the operator.

I forgot to mention that that little gain is after all of the input costs have been paid for by the input,, so it cold be more,, it is a little sad that it is not yet at the 10:1 that the model predicts.

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a video of Mr. Finger moving the input

https://youtube.com/shorts/2y2TRE8bvuo?feature=share