Double universal joint style drive systems

[GILow]

Originally Posted by Wotname

…the change in the non linear velocity is dependant on the angular displacement ….

Is it just me or is it getting a bit nerdy in here?

[GILow]

Originally Posted by Nicholson58

Without a CV component it would not permit length variations.

I’m not sure the CV component provides the length variation, usually that comes from a telescoping splined shaft between the joints.