I am building a stationary robotic arm, probably with a stepper motor base and servo joints. I haven't finalized a design, but I will probably be using Microrax extruded aluminum and "like" 4 servos. My main concern at this point is providing adequate power to my system. I am currently looking at a bench linear power supply that can be viewed at the link below. http://www.hobbyking.com/hobbyking/store/__6222__Towerpro_MG946R_12kg_55g_12kg_20sec.html
My main question is: Can I establish a dedicated voltage rail with the supply that each servo (and stepper) connects to. In addition, is there a method of calculating/modeling the voltage/current settings for the power supply to ensure the necessary amount of power is being transferred to each motor. I would really like to learn a modeling method for future reference. On a side tangent, I haven't decided on controller hardware (Microcontroller, and stepper motor driver/h-bridge system) if anyone has a good suggestion please share.