Questions tagged [servomotor]

A servomotor is a closed-loop servomechanism, typically used in industrial applications. It usually consists of a motor coupled to a sensor (e.g. encoder) for precision position feedback, typically using a low ratio gearbox or direct drive.

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5
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1answer
228 views

Finding a light load high precision servo motor

I have a project that requires me to be able to accurately and repeatedly rotate an object 120 degrees. The object is small and lightweight (let's say several grams). The axis does not necessarily ...
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2answers
3k views

For robot wheel control : Brushless DC motor or Servo Motor?

Simply, when to use brushless dc motor and when to use Servo Motor ? what are the differences , specially when adding an encoder to the dc motor you can have the position and it will be similar to ...
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2answers
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What are the calculations for a badminton robot and mechanisms?

I am designing a badminton robot but i am very confused about mechanisms needed for a badminton robot and various calculations needed for millisecond response.I am also confused about calculations ...
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1answer
913 views

Torque control and monitoring of servo

I am trying to control the servo motor operation by torque control by interfacing the sensor to an avr , which will continuously monitor the torque value from the sensor and control the torque ...
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0answers
44 views

Compact design - building from off-the-shelf components [closed]

I want to build a small cylindrical arm, with a main 360º angular servo on the longitudinal axis, and a secondary angular servo with variable speed in a trasversal axis that rotates with the main ...
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2answers
1k views

Up to what force is a servo motor a reasonable choice as an actuator?

I'm working on an application where I need to apply a linear or angular force to operate a linkage mechanism, but I don't (yet) know what amount of force I will need. I anticipate that it will be less ...
3
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2answers
1k views

Electronic Speed Control Concepts

I am a programmer who has never worked with electronics before. I am learning the concepts and hoping to build a quadcopter, with the control software entirely written by me. Motor control seems to be ...
4
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3answers
7k views

Controlling digital servos

Many websites say that analog servo motors work on 50Hz and digital servo motors work on 300Hz. My question is, does this difference apply only to the inner control loop of the servo or does the user ...
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3answers
1k views

Servos power supply in Quadruped Robot

I'm facing a problem while building my quadruped robot which is figuring out the efficient power supply needed for the 12 servos. I'm using 12 MG995 tower pro servos powered by 2 lithium batteries 2x3....
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2answers
231 views

Do servo motor specifications take into account the gear ratio inside?

I am looking at buying a servo motor for a an application that must be able to lift 4-5 lb at a rotational speed of approximately 1rpm. The servo motor listed here http://www.robotshop.com/ca/en/hitec-...
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2answers
13k views

How to use Arduino for ESC control?

I am using an Arduino Uno to control an ESC for my (in progress) quadrocopter. I am currently using the servo library to control the ESC, which works great. Except.. A count of 100 is max speed, ...
4
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3answers
2k views

Is a thrift store a good place to get a servo motor?

I'm trying to learn about a very basic motor, the servo motor. Can these be found a thrift stores like Goodwill in old toys? Are these "robotic" quality? What toys or other kinds of things would I ...
2
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1answer
199 views

Why are the IRB 1410's servos running even when the joints are not moving?

I was jogging the ABB IRB1410 and I noticed that the servo motors are humming even when the joints are not moving. The motor cuts off only when the guard switch in the flex pendant is released. What ...
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2answers
802 views

Should I switch my servo system from brushed to brushless motors?

I have a robot that uses brushed motors in its servo system. These are Maxon 3W motors, with 131:1 planetary gearboxes. The motors are controlled by a PIC microcontroller, running a 1kHz PID ...

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