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I am new working with robotic arms but I am having trouble finding the correct servo for the base of the arm.
It is a 2 link robot - each link weighs 1.2 kg and is 40 cm long. I have a gripper of 10 centimeters. The servo in the gripper can hold a max of 4kg. The whole robotic arm, including the maximum load it will carry and the servos and other accessories, is 8.3 kg. The maximum load it needs to carry is 4 kg at the end of the arm at 90 cm.
What servo could I use to move the rotary base and what servo could I use to lift the arm in the base? The last one is to move the link so it would be preferable to have a 2 axis servo.
The only specification I need right now is what servo to use my energy supply are two 12 volts DC batteries connected in series with 18Ah. I need the servo to be DC. The other things can be worked around the servo that can best do the work.