机器人手臂，底盘为圆柱体，上臂和下臂均采用立方体，通过键盘为交互手段控制三个部件的独立旋转。-Robotic arm, chassis for the cylinder, the upper arm and lower arm are used cube, by means of the keyboard for interactive control of the three components separate rotation.

用鼠标左键点击可使其大的立方体变成小的立方体，在点击立方体会变得更小，点击超过一定的次数立方体就脱离中心轴而变成独立的旋转。点击右键其状态又恢复成原来的状态。键盘shift+、--控制立方体的数量。-Left-click to make it big cube into small cubes, cubes become smaller at the click, click on the cube over a certain number of times and become indepe