Figure 4 from EthoHand: A dexterous robotic hand with ball-joint thumb enables complex in-hand object manipulation | Semantic Scholar
Active Ball Joint Uses Spherical Gear | Hackaday
I designed this ball end joint for my portal-robot, but it can also be usefull for other robotics projects. it is 3D-printed, and utilizes air gun balls to reduce friction. A springloaded
An electrorheological spherical joint actuator for a haptic master with application to robot-assisted cutting surgery - ScienceDirect
WIP] Infernal Robotics - Next - KSP1 Mod Development - Kerbal Space Program Forums
What are the techniques for making an efficient ball joint at the shoulder in a humanoid robot? - Quora
ArtStation - Ball joint mech
The ABENICS Active Ball Joint Mechanism Moves an Output Link with Three Degrees of Freedom - Hackster.io
ArtStation - Ball joint mech
Lego Robotic Arm - Ball Joint Concept - YouTube
Ball Joint Module makes service robots mobile.
Major components of the variable stiffness ball joint. | Download Scientific Diagram
Non-spherical ball-socket joint design for Delta-type robots - ScienceDirect
3D Printable Bolts, nuts, ball joint blocks made with 3D printers (Recycling Box Toys) by Print & Play