Physical Joint Type

There are 3 different types of the physical joints. They're ball joint, shoulder joint and hinge. 

• The ball joint has 3 degree of freedom (DOF)
• The shoulder joint has 2 DOF
• the hinge joint has only 1 DOF

Also, Each type of physical joint has its own rotation limits. We'll introduce the differences of them in next section.

_{3 different types of joint respectively: ball, shoulder, hinge}