This is my first post here, so hello all. I really hope I can learn a lot from you guys.
I am trying to build a robotic arm to carry an object and put it inside of different boxes that are placed in different fixed locations.
I found a few robotic arms that can do it, but I am still trying to find the right motor for the job. I read a lot on-line about the different motors, but I am not sure which on to pick. Since the boxes are located in fixed places, the motors have to move in a precise way, so, according to my research, Servo motors are the ones I should use.
Since it is a low budget project (I am college student), I wasn't sure which motor to choose (there are a lot of servo motors out there). I found several Servo motors on-line, for example , Analog Feedback Servo, and I was wondering what is the best servo motor I can buy for a really low cost project? I think I can spend about 10-20$ per motor (I need 5 motors).
I already have an Rpi and I know that pin 18 is the PWM pin that controls the motor's precision movement, but before I purchase a PWM controller and additional motors I need to run some testing to find how precise the motor is.
By the way, how can I calculate the amount of weight the motor can handle?
Any ideas and information will be greatly appreciated.