Questions tagged [motor]

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

Filter by
Sorted by
Tagged with
1
vote
2answers
5k views

Can i use DC Brushed motors for building a drone? [closed]

I want to make a drone. But my budget is very low. Brushless motors are very expensive. I want use the Brushed CHEAP ones. can i us them ?
1
vote
2answers
3k views

DC motor shaft and gear installation

I'm hoping to use a DC motor to drive a cog bar horizontally along a track. AFAIK, I'd need to install a (plastic) cog on the motor shaft, which itself grips on the (plastic) cog bar. Does anyone know ...
1
vote
1answer
373 views

Ways of reversing motor direction easily

My set up consists of a brushed motor (ex cordless drill type) connected to a motor controller which is in turn connected to a LIPO battery and an r/c receiver. All my cables are fitted with XT 60 ...
1
vote
2answers
1k views

DC motor with encoder

Can anyone help me out here with this DC motor, especially the encoder part? I tried searching around for its datasheet but its as short as 1 page and the only spec I get are: Encoder: 1 pulse/...
1
vote
2answers
474 views

Mechanism for changing gears on a bicycle

I'm looking to make an automatically shifting bicycle for my senior design project (along with some additional features TBD). However, I come from an electrical/software background; not a mechanical ...
1
vote
1answer
42 views

Why Hydraulics and Not Motors?

I have noticed everywhere that professional robotics companies use hydraulics over electric motors. I want to know why that is. Why can they make custom electric motors that are really powerful. ...
1
vote
1answer
38 views

How to compensate for back drive caused by gravity

I have a 24v DC motor with a planetary gear box, Hbridge, and encoder feedback that drives an arduino robot similar to a winch that moves a weight by spooling a strap up and down. The problem I am ...
1
vote
3answers
43 views

A powerful pull/rotate device that provides a certain (controllable) force?

I don't know how to call the device I'm looking for (or need to create), maybe you can help me with terminology too so I can at least search.. I want something that either rotates or pulls with a ...
1
vote
1answer
29 views

Max motor voltage for RoboClaw controller

The RoboClaw data sheet from ServoCity mentions various current limits, but what about voltage? Can I run a 110 Vdc treadmill motor?
1
vote
1answer
39 views

Motor vs weight

I hope someone can help me out with please. Revolving platform on rollers. weight 800kg. Add car that parks on top . Weight 2000kg Total weight 2800kg to be rotated. 6x dc motors pushing against the ...
1
vote
1answer
51 views

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 ...
1
vote
1answer
69 views

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 ...
1
vote
1answer
399 views

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 ...
1
vote
2answers
72 views

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 ...
1
vote
2answers
5k views

How can I calculate speed and torque of stepper motor screw

I want to choose stepper motor screw with slider for use it to shift cube with side 5 cm and wight 250 g . I found this motor .. how can I calculate speed and torque of slider
1
vote
1answer
99 views

Beach Cleaning Robot - Wheel Slip problem

I am building a beach cleaning robot. I am having problems with it moving on the Sand. I have attached a video of it struggling to move. How can I proceed (I think it has enough torque) . it moves ...
1
vote
1answer
145 views

Determining rated speed (RPM) required for a DC gearmotor

I'd like a two-wheeled robot to travel at 1m/s, given a wheel radius of 0.03m. I've calculated the rated speed required by the gearmotor as 318.28RPM: $v = \omega r$, $\displaystyle{\frac{v}{r} = \...
1
vote
1answer
64 views

I need help figuring out what motor is used in this design

I am learning how to make rigs for high speed motion control. Basically, whatever action needs to be executed must be done by a rig that is triggered at an exact moment. In this particular case, I ...
1
vote
2answers
131 views

How can I turn a bowl/glass upside down?

I want to dispense water/cut-vegetables from a glass/bowl(240 ml) by turning it upside down. The screencast shows the idea: I can directly mount the clamp on a servo motor, but I think that will be a ...
1
vote
3answers
4k views

One motor, two wheels (motor direction rotates one wheel forward, reverse for other wheel)?

Rewriting this whole question as I've learned a lot more since I first tried to ask. I'm building a tiny bot and looking to use two motorized wheels for movement, but only one motor. I'll have a 3rd ...
1
vote
1answer
272 views

What does internal sparking in a motor mean?

My Arduino + Raspberry Pi robot was working fine in the morning. I tested it, it ran perfectly, and then I switched it off. Now in the evening when I'm trying to run it again, with the same ...
1
vote
2answers
820 views

3 way check valve

I am working on a micro dispensing system, using syringe pump. The design involves a syringe on top to be moved by stepper motor. There would be one liquid reservoir form which the syringe would pull ...
1
vote
1answer
243 views

Motor for DIY Remote controlled shades

I'm currently undertaking a project to build remote controlled shades from scratch. I currently have every piece figured out except I don't know know much about the motors involved in something like ...
1
vote
2answers
1k views

Building an open loop controller for a simple DC motor position problem

In order to identify the dynamics of my DC motor, I am trying to command it with Xcos using the Arduino tool box. The problem that I am facing is how to give the motor an input command such that I get ...
1
vote
2answers
465 views

Which encoder should I use with a 24V Dc motor and 6mm shaft?

I would like to control the position and velocity of a DC motor like this one (ZY MY 1016 - 24V - 10A - 200W). The motor comes with a 13 TOOTH SPROCKET and the diameter of the shaft is 6mm. It's not ...
1
vote
3answers
2k views

How to program parallel PID control loops? So I can give my robot multiple set points to follow

So I'm in the process of building my robot and it has encoders on every wheel measuring speed and position and a compass sensor measuring heading. I have 3 seperate PID loops at the moment, I can ...
1
vote
2answers
2k views

Adding reverse function to a brushed motor electronic speed controller

This is for a Hobby-weight (5.44 Kg) battle robot. I bought two ESCs for my drive motors but the ESCs do not have a reverse function (or brake for that matter). Is there any simple way I can achieve ...
1
vote
1answer
456 views

Designing compatible spur gears for a robot gearbox

I'm trying to increase the torque on the output shaft of my robot's gearbox. I have a motor with a pinion attached to it with 8 teeth. I want to create a gear with 33 teeth that will mesh with the ...
1
vote
2answers
109 views

How can I dynamically control the amount of torque necessary to rotate something for a test rig?

I'm looking to build a test rig for a robot that rotates a 1" diameter pipe 180º (roll not yaw or pitch). I am currently testing a motor's performance when subjected to various kinds of PWM (high duty ...
1
vote
1answer
83 views

CTL port in a motor controller [closed]

When I look at my 160A motor controller, it has a port that is called "CTL." What does CTL stand for? Is that a sort of protocol like RS232?
1
vote
3answers
550 views

How are the optical encoders used in platforms like Rover 5?

I just got my rover 5 chassis with 4 motors and 4 quadrature encoders and I am trying to utilize the optical encoders. I know the encoders generate pulse signals which can be used to measure speed and ...
1
vote
2answers
230 views

Additional Power to DC Motor via Second Power Source

How can I provide more power to a DC motor that is in series behind a receiver circuit hacked out of a cheap RC car without burning up the receiver board? The board runs off two AAs at about 3V. I'm ...
1
vote
2answers
227 views

How can a load be balanced between multiple AC electric drive motors?

I have a three wheeled vehicle in a tricycle configuration attached to a fixed frame. Each wheel is powered by an AC electric motor. The AC motors are fed by motor controllers that take a speed demand....
1
vote
1answer
31 views

How to pick the right motor driver?

I have this brushed DC motor (Vex 775pro: https://motors.vex.com/vexpro-motors/775pro; motor curve data here I assume is useful but I do not exactly know how to make sense of it) My question is, how ...
1
vote
1answer
32 views

BLDC Stuttering when attached to Arduino Nano

I am working on building a quadcopter with an Arduino nano. I am currently only working with 2 motors. However, I am experiencing an odd issue. When I try to run my motors, one of them runs fine, ...
1
vote
2answers
79 views

Why aren't my 4x 612 RPM motors driving with only 12 lb load?

I have purchased x4 612 RPM actobotics motors. Every time I try to drive the motors on ground, the motors stall, as if the torque was too low to drive. The motor model: servocity.com model #: 638284 ...
1
vote
1answer
119 views

Raspberry Pi & L298N & Johnny Five, motor turns when instantiated

I'm a newcomer to this kind of tinkering so please bear with me here. I've searched high and low for an answer but have been unable to find one. I have a Raspberry Pi Zero W hooked up to a L298N motor ...
1
vote
1answer
79 views

DC motors are stalling at low voltage (L298N controller)

I'm building a small tracked robot. Currently it's just a Raspberry Pi, two motors and an L298N controller. The problem I'm facing is that the motors are stalling at low voltages (which is what I ...
1
vote
1answer
42 views

Using Integral gain for motor positioning

I'm struggling to see how Integral gain is used for motor positioning (with an encoder on the shaft). Suppose we have an AC motor connected to a winch which drives an object forwards and backwards. ...
1
vote
1answer
35 views

Industry robot maximum torque

In google search, I find Abb industry robot wrist maximum torque is around 6000Nm, So I’m wondering, in most industry robot, how much the maximum torque can reach? In another words, which motor is ...
1
vote
1answer
45 views

Drive axis with slipping gear

I'm looking for a name of the mechanic part (axis-gear combination) with the following description to use it in an automatic window control. I can't find this online to get parts due to the lack of ...
1
vote
1answer
45 views

Power systems design for a vehicle

I'm designing a system to power up my vehicle with 12vDC and I have 8 motors each draws 25A at max and they are not expected to work always at the same time, meaning that in the maximum case 6 of them ...
1
vote
2answers
981 views

Calculating torque required to rotate a platform

I am trying to spec out a motor's torque required to rotate a platform about an axis. This diagram makes it better to understand(it's like a rotisserie): Dimensions are in cm: I have an arbitrary ...
1
vote
1answer
271 views

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-...
1
vote
2answers
284 views

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 ...
1
vote
1answer
24 views

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, ...
1
vote
1answer
74 views

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 ...
1
vote
1answer
38 views

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....
1
vote
1answer
154 views

Robot Position Control on Treadmill

Previous Question Hello, In continuation of my question above, I have another question. I have managed to control the speed of the treadmill using a PID and StevO mentioned to me how the scaling from ...
1
vote
1answer
82 views

Replace screws with motors!

I am new to this space and the field. Please pardon my lack of intuition or knowledge. I have a recording stand with a join in between. a pair of screws through which the whole apparatus pivots like a ...

1
3 4
5
6 7
9