Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [robot]

47 questions
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PID regulator for a self balancing robot

I am working on a self-balancing robot, trying to obtain the best values for the angle PID regulator. I have a working program, but I am stuck on the tuning part. The robot can hold position after start, but then it collapses or starts to…
Crax
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How far can radio signal be transmitted through a straight steel pipe?

We are needing to transmit data between a robot that will be traversing a pipe, and a base station located at the end of the pipe. The pipe is about 2 feet in diameter, made of steel, and is relatively straight so we expect to have line of sight to…
T James
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Stepper vs servo or DC motor

My friend and I are currently working on a robotic vehicle project, and he had some spare steppers lying around from a previous project. Instead of using DC motors or servo motors, is it viably to use steppers to drive a small vehicle?
Enthurzan
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Is my DC-motor strong enough to move this amount of weight?

I’m thinking about building a robot just with some old parts I have. The main thing is the motors. I have 2 DC Motors Specs below. (It’s a MFA975D Series with gear ratio 49:1) Operation range(Voltage): 12V No load - Speed 147RPM Nm = 1,8 The tracks…
Christoffer Bodholdt
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How to calculate the torque constant for a BLDC motor

I am designing a 12lb hobby robot with a 1000Kv BLDC motor at 14.8V nominal voltage and stall torque of 30A. How do I solve for the torque constant. I have seen equations where Kt(torque constant) = 1/Kv. And also equations where Kt = 30/pi(Kv).…
mikesmion
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Basic Robotics Help. Variable motor speed control by ultrasonic sensor input on arduino

First, thank you for taking the time to read my post. I am attempting to use an ultrasonic sensor to control a DC motor using the PWM output of an arduino. Fairly simple, I know, but I'm just a beginner. :) Here's my code, with an explanation of my…
Quark
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Dynamic model of three dof to state space?

I´m trying to convert a 3 dof robot manipulator from dynamic model to state space. I saw a video where explains how to convert a 2 dof robot manipulator, but I don´t know how to apply it to a 3 dof robot manipulator...this is the link of the…
Rodrigo Barbosa
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Will running four motors (two high speed and two high torque) get the robot rolling?

I've been building a 2WD robot for 3 months now and been switching the motors frequently and been running into the same issue - low torque. I had these low RPM, high torque motors around and thought: Would having four motors (two high speed and two…
8TILMATE
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Is this design of a motor controller valid?

I am trying to design a compact robotic actuator. My main focus with this project is to reduce the amount of external wiring needed to do with robots. With that in mind, I have thought of the following high-level overview for my robot: I found that…
ssarkar
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Servo motor speed and torque

From what I've read the speed is controlled based on the supplied power voltage, or using delay on arduino code, how about the torque, is there a way to make the servo motor change the torque ? like torque(0) it goes lose and any eternal force can…
Xakiru
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How to effectively avoid current drops while stepping down the voltage?

We are using a PC power supply to power our project, which is a Robotic arm. Since our power supply has a 12V output voltage, can anyone please advise how to step down the voltage (12V) to 6V. Using a buck converter to step down the voltage to 6V is…
Talat Malik
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Brushless motor control poisition (design own PID?)

I got a few motor similar to the image below from a old scanner and I want to apply them in a robotic arm to move the arm because BLDC motors have a large torque I then control with arduino. Well, in order to do that I came across that maybe I would…
Bruno Pimenta
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Stepper Motors (NEMA-17) Won't Run When Wheels Are Attached

My team and I are creating a robot using 4 stepper motors with mecanum wheels and an Arduino Uno. The code appears to be correct, and the motors seem to run just fine on their own, but once we screw on the mecanum wheels they can no longer turn. If…
cutelilcoder01001011
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Stepper motor torque requirements

I have a robot that has a load of 60kg and it has to move using 4 stepper motors. I saw from previous searches that the torque required by the motors to move is Force times the wheel radius. COF = 0.55 Torque = [(60 x 9.8) x 0.55] x 0.05 = 16.17…
Lester Narciso
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Equalizing motors speed for balancing robot

I am currently working on a balancing robot project using Arduino Uno. I am able to get the robot to balance but one of its motor have the tendency to rotate more than the other. I am using the L298N motor controller with 2 x 30:1 Metal Gearmotor…
ckong80
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