http://demonstrations.wolfram.com/UniversalJoint/
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Universal joints (Cardan joints) are used to transmit rotary motion between machine parts that are not in line with each other. Such a joint can allow bending movement in any direction.
Contributed by: Sandor Kabai
thats not what i was looking for
mTreyV 3 months ago
nice modelling when it is used to connect non collinear shafts which parts have relative motion
COD5252 8 months ago