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Questions tagged [servo]

Servo is a tag used when referring to servo motors, electric motors capable of being programmed to turn in a desired way

Servo is a tag used when referring to servo motors, electric motors capable of being programmed to turn in a desired way

49 questions
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Does a motor suffer damage when resistance to the intended motion is met?

I'd like to create something similar to a hydraulic press. I know I need some sort of motor, but I was curious about a fundamental question about motors when used in a system where the force required to continue motion increases. General question:…
whatwhatwhat
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How to calculate the coupler length in a crank rocker mechanism

I'm trying to learn a bit about building kinematic mechanisms by building a small project. The goal is to be able to open and close a box programmatically via a servo motor. I have a small box that I've reproduced in fusion 360 and I'm trying to…
Chris Schmitz
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Improving ball feeder design

I designed this ball feeder for my robot however I'm experiencing frequent ball jams as the ball is stuck against the wall of the hole entry or just a ball being moved left and right not entering the. I was thinking of maybe adding a wall to one…
Sterling Duchess
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Is a 1:1 Worm Drive possible?

I am working on a project that requires a wing to be rotated and I need the rotation mechanism to be fail-safe -- if power fails, the wing will stay in place and not move around. My thought was to use a worm drive since they are not reversible. …
Tristan Semmelhack
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Quick release for spring-loaded rod

I have some doubts about a quick-release mechanism that I'm working on and I'd like to run it by you. I have hollow tube in which there's a spring-loaded rod. Part of it is made wider and there's a metal round pin that restrains the entire…
John Lane
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Why servomotor has such low torque compared with stepper motors?

It is easy to found stepper motors with torque over 2NM for a few coins, however, only expensive industrial servomotors achieve this torque. Examples: Stepper motor: 10usd for 1.3nm with 2.8V at 3.5A rpm 0.6kg Servo AC motor: 278usd for 2.39nm with…
Adrian Maire
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Looking for data or nomenclature that partains to "Smoothness/accuracy" of servo grade gearboxs for roll to roll application

I am designing a roll to roll web drive system where having smooth consistent very slow speed is important to quality of the product. I will be using a clearpath servo motor with a gearbox of 20:1 ratio. It has been recommended to me that I might…
Jacob S
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how much power is needed to move a linear axis

Ι need help calculating the power usage for a linear axis motor. it must move up and down at a maximum speed of 0.5 m/s a load of 50 kg What I did so far: The load (i.e. weight) acting on the motor is: $$F = mg = 50 * 9.81 = 490.5…
tt600
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How to convert a DC motor into a servo motor using a rotary encoder and a microcontroller?

Operating/ Rated Voltage: 24V No load Speed: 350 rpm No load Current: 150mA (max) Max efficiency: 1.4 Kg-cm/300 rpm/ 14.2W/ 0.87A Max power: 4.5 Kg-cm/180 rpm/28.2W/1.4A Stall Current: 2.9 A (max) Stall/ max Torque: 8 Kg-cm Gear Ratio: 1:34 1496…
Samm Flynn
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Determining the torque needed for a servo motor

I'm looking for a bit of clarity on a design I have in mind. Please bear with me as I have no background in physics, engineering and this is part of my first real DIY project, so the knowledge base upon which I write this question is fairly low. I'm…
Kieran S
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Linear guide ball bearings

I'm planning to drive a small linear guide (4cm long) with a servo in a setup like this: I wonder if the ball bearings inside would sustain too much stress due to the vertical forces exerted by the links whilst driving it linearly. AFAIK ball…
John M.
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Waterproof Pan control/bearing/mechanism

Please bear with me - I'm not an engineer, I'm a software developer so lack the language / knowledge to describe what I want precisely. I'm controlling a servo to rotate /pan a platform to hold a camera (think pan/tilt). This is fine. However, I'd…
Jack
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Gearbox oil/grease leakage

Recently I encountered a problem of oil leakage from different driving systems SERVO gearboxes. The transmitted mechanical power ranges from 2 to 8 kW, while the motor speed (the gearbox input speed) varies from 1440 to 3000 RPM. Most of the units…
Yaniv Ben David
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How to prevent movement in this 3 DOF setup?

I have a 3DOF platform that I'm trying to make more stable. It's difficult to explain in words what the issue is so I've added a GIF below. Any ideas of how I can get rid of this wobble? The DOF arm tends to cave inwards. I know it's being caused…
shekit
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What filter is this?

I am implementing a second order filter. It simulates hydraulic servo on an airplane. Its about 35-40 years old. What confuses me is the notation. Like "2(.7)(52)S", what does it mean? If its just products, why then not write the resulting…
Invariant
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