I'm thinking about making a robot that you would stand inside of and it would track the position of your arm and legs or whatever and mimic it. The question that I have right now is what is the best motor/servo/stepper motor to turn the arms and whatever they are lifting so 400+ LBS ABOUT 4 feet away from the motor(sorry if this is unreasonable)
So you're basically trying to design a machine to break your arms?
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That would be 1600 foot pounds of torque, or 2170 Newton meters (N m) in the international system.
Since motors should be operated at maximum about 25% of the stall torque, order a gearmotor with minimum 8800 N m stall torque, (measured at the gearbox output).
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The actual unreasonable part is you have NOT designed the mechanism to connect a motor to the moving parts, nor have you designed the joints and bearings for those moving parts. When you have done all that you can compute the torque and movement range and safety features necessary for your project.
Start the design at the beginning, not at the end of the design and working backward.
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- These are a good choice, however, the Arduino cannot drive them directly, you need an interfacing motor driver, and/or an H bridge driver for reversing.
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