Universal Joint of Links

It is used for rotation transmission between the shafts, relative position of which in space is arbitrary.
Yellow bar is connected to the green shaft by a spherical joint.
Yellow bar is connected to the violet shaft by a point-on-plane joint and a spherical joint.
It is not a constant velocity joint.
The video shows case when the input green shaft axis intersects with the output violet one at angle of 30 deg.

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