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Questions tagged [motor]

Without qualification 'motor' is usually taken to mean a rotary electromechanical motor, typically either a brushed or brushless design.

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Robotic Arm Senior Capstone. Electronics/Controls/Sensors Questions

I am a mechanical engineering student currently working on my senior capstone. My team of all MechEs has to build a robotic "arm" where the arm is really just a link/bar of aluminum. The thing we ...
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Roboclaw 2x15A Motor Controller giving a Driver Fault error

I'm trying to get a Roboclaw 2x15A Motor Controller working, I'm trying to control 2 NeveRest 60 Gear Motor for differential drive. I installed the software, connected a battery, and USB cable. I'm ...
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DJI E310 Thrust Coefficient

I am reading Denis M. Filatov et al.'s paper "Parameters identification of thrust generation subsystem for small unmanned aerial vehicles" (https://www.semanticscholar.org/paper/Parameters-...
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Calculate torque required to rotate and hold a platform

I wish to rotate a rectangular platform about its length. It is attached to a shaft that runs through the length of the platform at width/2. How can I compute the torque of the motor required to ...
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Rover style robots with less motors than wheels

In all of the designs that I have seen for rockie bogie suspensions, each wheel has a separate motor. Can a rover be driven with less motors? Does each wheel need to spin independently?
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Best way to estimate velocity of motor with encoder

I'm designing a PMSM controller with the motor has an optical encoder, so I can get position information from the motor. But how to measure the velocity of the motor. Now, my design is to calculate ...
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Tamiya Dual Gearbox attached to an Arduino Uno Board

I'm building a robot that uses the arduino uno microcontroller, and the tracks system is run by the tamiya 70168-Double-Gearbox-Kit. Each Tamiya motor only uses 3V which is fine but it seems the ...
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DC geared motors or leadscrew and motor for joints

I'm trying to build a quadruped robot. I studied dynamics and to get an idea, I read and watched papers and videos related to robots like ALof and StarlETH and some more. But since this is my first ...
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How to PID loop Tuning for the system which step response is Oscillating about set point

I am using PID controller to stabilise the two DC motor response using encoder signals. DC motor is controlled by Driver with the analog signal. I am using PID closed loop to run the DC motor at fixed ...
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Need some advice on controlling maxon motors for two wheeled robot

I am using two maxon EC 45 flat motors to run a three wheeled robot (the third wheel is passive). I have two motor controllers (Maxon ESCON 50/5) to control each motor as well. There is a software by ...
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Getting error on serial monitor when using serial controlled motor

I am using this motor in a robotic arm. I wanted to move it to a position and the position was provided via an input but I am getting errors on Serial Monitor. Initially when I tried this , name of ...
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Controlling a dc servo with serial communication

I am going to buy this motor :- https://robokits.co.in/motors/encoder-dc-servo/faulhaber-coreless-17w-encoder-motor-120rpm-pid-dc-servo-drive?zenid=im3bp6grppt2f2ofdo2r6pq5c2 The datasheet of its ...
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Controlling industrial grade dc motors fitted with analogue or digital encoders for robotic arm

I am new to such industrial motors. I searched through the datasheets of these motors ( analogue and digital ) and didn't get clear answer about how I would be able control with MCU like Arduino or ...
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Controlling Stepper or DC motor with L298 or L293 and getting operation similar to Servo for 6 dof arm

I will be using 1:4 gear ratio and thus will require a motor with a continuous 360 motion and a high torque for efficient functioning. Servo motors with continuous rotation and high torque are very ...
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1answer
55 views

What propeller to use for in-pipeline robot?

Currently im working on an in-pipeline inspection robot that can navigate through narrow pipeline. My design is to use a propeller at the back to push the robot forward. The front part of the robot ...
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6 motors with TB6612 driver + power requirements

I am looking at the ServoCity Bogie platform - it comes with 6 motors. The motor listed specs are: Suggested Voltage: 4.5 VDC No Load Current: 190 mA Max. Load Current: 250 mA I ...
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Separation of motors from movement

I have a large 1m diameter metal sphere. It has a fixed hollow rod drilled through the bottom of the sphere side and reaches to the middle of the sphere. I wish to move something in a x and y ...
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Recommendations and Advice - Motor Driver for 12V Gear Motor with Magnetic Encoder

I am building a robotic insect leg that would be actuated by 2 DC motors for pan and tilt motions. Total weight of the leg is about 1.5kg and 1m long (moment arm ~0.5m). Magnetic encoder would be used ...
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Sensored BLDC motor (sometimes) needs push to get started

I'm having a sensored BLDC motor (12V version though) connected to a suitable motor controller and powered through a 25A regulated power supply With an Arduino I'm able to control the motor just fine. ...
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PID loop to control motor velocity with disturbances

I am trying to use a PID loop to control a motor. This is my first attempt at creating a PID loop (really just a PI loop). There doesn't exist a model for this system, and I don't know how to create ...
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1answer
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Excessive Heat Coming From Video Transmitter and Motor Electronic Boards

I'm building a quadcopter and I'm finding that certain electronic boards are heating up beyond what I believe the heat should be. In this case I hooked up the video transmitter and then tested it. ...
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BetaFlight sees motors working, but motors not spinning

I am using FlySky i6 Transmitter and a FS-iA6B receiver. I have it set up using PPM and BetaFlight recognizes the motors in the Receiver section. All the values adjust according to the toggles and ...
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How can I measure the BEMF signal and zero cross detection?

I have started to work on a Sensorless BLDC motor. In open loop mode, Sensorless BLDC motor is running in properly. My question is how can I measure the BEMF signal and zero cross detection? Motor ...
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What part do I need to bypass the gearbox of a hoveround motor? Helical splined hub?

I have an old powered wheelchair motor from a Hoveround. I have removed the gearbox and I would like to attach a lawnmower blade directly to the shaft. As you can see from the photo, it has 7 ...
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What motor features should I consider for automated blinds?

Not sure if this is the proper community, apologies if not. I'm wanting to start a DIY project at home to automate my blinds through Alexa. I'm comfortable with the tech from the microcontroller up, ...
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accessing serial and ethercat devices

I want to, ask is accessing all the serial devices/sensors eg. RS-422, RS-232 done in same way? And also is accessing all the devices in market with ethercat connection can be done in same way? For ...
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Motor propeller combination query

I'm building a drone. It is an octocopter with two propellers on each side. I'm using 2 propellers on each side for redundancy purpose, beacuse it will be carrying a heavy camera. My drone weight is ...
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What protection circuitry is required for tracked robot using Roboclaw controller, 313 RPM planetary motors, 12V AGM battery

I am trying to assemble a tracked robot (from Servo City) (Agent 390) with the following: -- two 313 RPM DC motors, stall current of 20A. I have tested the tracks w / motors, they draw around 0.5 to ...
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double check my Battery & DC Motor math, and provide recommendations

I'm building a lawn bot, I think I have the math for my motor draw vs battery correct, but i wanted to run it past some experts. Motor motors and transmitter/reciever Motor Controller https://www....
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1answer
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Power delivery issue for our human following robot project

We are very new in the game of robotics and we are dealing with a power delivery issue for our motors. We are using two 12V DC motors to give motion to our robot. We are using the L293D motor driver ...
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Using hls lfcd lds in conjunction with a motor driver for obsticle avoidance

I have a hls lfcd lds that i am desperately trying to figure out how to integrate into my robot. i found an arduino library for the sensor lidar sensor library Now im trying yo figure out how to get ...
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186 views

L298N driver takes too much current

I'm using L298N motor driver to spin stepper motor (42BYGHM809). When connecting it to batteries(2*9v), the batteries heats up after few minutes and stop working, and when connecting it to power ...
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Controlling a servocity planetary motor?

I know this might sound like a stupid question, but I actually need help with this. So, I'm looking at this motor: https://www.servocity.com/2737-rpm-premium-planetary-gear-motor. I have a raspberry ...
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How to maximize stall torque of a motor

I'm looking to use 3-phase motor without gearbox for robotics application. It will always work at near stall situation never rotating more than 360deg. I'm looking for arrangement that will produce ...
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Linear Actuator

I'm having some technical issues with the SDA6-263 and SDA12-263. The problem I'm having is the same for both actuators. This is the list of my equipment for my setup. Sabertooth 2x32 (https://www....
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Choosing motor for shake/push pull action?

I'm looking forward to choose motor for shake or fast push/pull action. On this video you can see example motion on 3:04. I read linear motor does that but looks like much slower. What kind of motor ...
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Control geared DC motor based on timing?

According to this video from Khan Academy about electronics of a DVD drive the position of the sled (which moves the reading head) is controlled by a geared DC motor by using only timing and one end-...
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Probably basic question about how control a DC motor

over the past weeks I was trying to figure out how use the information from hall sensor to control a DC motor. Basically this is the motor which I'm using: https://www.servocity.com/32-rpm-hd-premium-...
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How can I reduce vibration of motor pulley assembly?

My motor setup is vibrating too much for my intended project. Here are my assembled parts : ClearPath® - Integrated Servo System motor, p/n CPM-MCVC-2310S-RQN two Actobotics 15 Tooth, Flanged XL ...
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1answer
73 views

Using hall sensors to calculate position

I have a geared DC motor with hall speed sensors. I want to count signals from the sensor to get position of the motor. Hall sensor has resolution of 12 CPR. Gear ratio is 1:810, which means that I ...
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Relation between Power, Weight & Speed

Motor I am going to use these 100rpm 12Volt Motor supplied Power given below. Surface Surface will be Plain Wooden. Area of contact between 6 Tyre and surface would be maximum of 4cm2 in total. Use ...
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677 views

How much weight can DC Motor carry?

How much weight can following Brushed Motors carry together? 4X 12 Volt 100rpm supplied voltage => (5/17)*12 2X 12 Volt 100rpm supplied voltage => (7/17)*12 These motors are basically the wheels for ...
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How many stages necessary to stabilize position while controlling torque?

I'm assuming that since torque translates into acceleration, the basic transfer function from torque to position becomes $1/s ^ 3$ Does this mean that 3 pid controllers are required to properly ...
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1answer
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unexpected inefficiency of a motor driver

I purchased one of these motor drivers and noticed that i was not getting as much time from my battery as i had expected. I tested the current draw when connecting my motor directly to the battery and ...
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1answer
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Identifying the connector on a micro planetary gear motor

I have purchased a couple of nifty little planetary gear motors and would like to incorporate them into my next project. could anyone help identify whether the connector is a commonly used one an ...
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2answers
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How to reduce the small free rotation/movement of a stepper motor shaft?

I was successful in running a 28BYj-48 stepper motor with 4096 steps per revolution. I am happy with the result. But there is a free movement of the motor shaft itself - you can move the motor shaft ...
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2answers
255 views

Scara robot design

I found this drawing on google photos: I don't understand why he used this part. Is it for reduction? What is its equation?
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Help with DC Gearmotor Specs

I need help understanding the specs of this RS Pro DC Geared Motor, Brushed, (RS: 238-9670). It has an operating range of 4.5-15V and a nominal voltage of 12V, so does that mean that it provides 0....
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1answer
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Calculating motor power and motor needs for 200 lbs load

I'm trying to make a load carrying robot which will follow a line and will have capacity to carry 200 lbs on concrete surface. What should be the horsepower for electrical motor to handle this on 0 ...
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1answer
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How do i figure out how much thrust an 150cc Size Brushless Outrunner Motor will output with propellers? [duplicate]

I need to know this as i'm trying to figure out if two of these could lift approximately 170 pounds of wheight. And that's includig batterys and the motors.