Robotic Hand with independently moving fingers

I loved the robotic hand design but I thought: why not give it four fingers instead of just one? If you have had similar thoughts then here you go. I recommend printing it rather slowly (50mm/s tops) and you should probably put supports on the bars that connect the rings to the tendons. In my experience the base joint of the thumb can be a bit stiff, to fix that you can turn it back and forth a few times with a pair of plyers.