Hi everyone
I’m designing an Arduino based motion replicator robotic arm for my High School. I’ll make it with potentiometers (they will be placed in the articulations of the person’s arm, to detect the rotation of each one) and servomotors (they will receive the rotations from the potentiometers and turn them into movement: X degrees in Y direction, so the robotic arm will do exactly the same as the person’s arm). Now I’m creating a 3D model of the arm, so the construcion will be easier, but I have a question. What kind of servo motor should I use? The arm will be of wooden and I want it to be similar tho this one:
youtube.com/watch?v=nYG19lh … e=youtu.be
I’m thinking in buying the TowerPro MG90D 13g, but I don’t know if it will hold the weight.
In addition, I want to know if do you think that I can do the robot from 0 to 100 (3D design, construction, electronics part and programming) in 3 months. Thank you!
Hi Ozone11,
This is pretty easy but nice to do project.
You can use the “knob” option in the Arduino Servo library to do it. (here)
The weight of the arm will have an impact to which servo to use.
Our suggestion would be a Hitec servo with the HS-645MG being the best choice and the HS-422 / HS-485 as a second choice.
Make sure you power the servo from a 6VDC source that can supply enough current.
