I am using DC motors to build a robotic arm. I want to make the base shoulder (which rotates and lifts) more stable and stronger. How should I design this using DC motors?
Also I would like to put the motor for the elbow in the base for efficiency. Which design best suits this?
UPDATE I am building a robotic arm for a payload of approx. 1-2 kg and using DC high torque motors. In this model, I am using only a shoulder with a gripper. The gripper is self made by me weighing approximately 400 grams. I want to have a proper design and material choice so that the shoulder part remains less heavy and more stable.
In addition to this I want to operate the movement of the gripper, i.e. the up and down motion, by using the motor in the base part. What should be my design and better alternative?