Some distinguishing features of the device include:
  • A new six degree of freedom mechanism.  Compared to the dynamic equations of a Stewart Platform type mechanism, the mathematical model is less complicated.  
  • It uses mature and cheap sensor technology.
  • Device drivers to interface the electronics to a computer already exist.  
  • The programming interface is not proprietary, anyone can build their own software.  
  • It is an elastic device, which studies suggest is easier to acquire skill with than an isometric device (which responds to the amount of force applied to it).
  • Less prone to user fatigue than a free-moving isotonic device.  
  • The mechanism could be modified with actuators to produce a six degree of freedom robotic joint or force feedback device.  

Further Reading

Zhai S. (1998). User Performance in Relation to 3D Input Device Design. ACM Computer Graphics, 32(4), ,50-54.
Sundin, Martin and Fjeld, Morten (2009): Softly Elastic 6 DOF Input. International Journal of Human-Computer Interaction,25:7, pp. 647-691.
T.W. Ng, The optical mouse as a two-dimensional displacement sensor. Sensors and Actuators A, 107, 1 (2003): 21-25.