I am trying to build a 2-axis robot arm with pan and tilt mechanism. The gripper/holder will hold an object weighing 300 grams. The total weight of the arm including the motors will be around 2 kg. I have decided to use 180 degree servo motors. The maximum arm reach will be 340 mm. what I want to ask is:
- What kind of servos (analog/digital) will be suitable to support the total weight (2 kg) and the object weight (300 g)?
- How do I calculate the required torque?
- How many servos should I use to make sure that my arm doesn't flip over?
Please suggest me if there is a better approach to designing the robot. I am fairly new to electronics and this is the first time I am building a robot. Thanks in advance.