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Questions tagged [actuator]

An actuator is a device for converting energy into motion. They may be pneumatic, hydraulic, electric, or mechanical.

1 vote
2 answers
2k views

Solenoid to launch tennis ball [closed]

I am interested in putting together a tennis ball launcher. It's accuracy/precision are not important. Even varying distance by ~50% or more per shot doesn't matter (it's for my dogs). What type ...
jbord39's user avatar
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1 vote
1 answer
1k views

Are electric linear solenoids the best option to push a capacitive screen button on a smartphone? [closed]

I'm trying to figure out if electric linear solenoids are the best option to activate an interface element on the touch screen of my smart phone. I have also heard of linear actuators and pneumatics ...
Rocketboy235's user avatar
0 votes
4 answers
4k views

Should I wire my electrical actuators in series, parallel or a combination of both?

I'm working on a project that requires four (4) electrical linear actuators to work together. They must be driven at the same speed, simultaneously. Let's assume that I have four identical actuators ...
Birrel's user avatar
  • 109
2 votes
1 answer
325 views

Does this brake control schematic make sense?

I am participating in a student project where we are building small, portable vehicles, starting with a pocket bike and some materials. We are also allowed to buy parts on our own. Our current plan ...
Elias Hasle's user avatar
0 votes
1 answer
159 views

linear actuator internal resistors

I have been trying for nearly a week now to try and build a mechanically locking box. I thought I could try using a linear actuator to do this, so I found a model I liked. My question is as follows: ...
user120632's user avatar
0 votes
2 answers
256 views

Micron-Scale Linear Actuation

I don't know a lot about linear actuation, but I need a precise device that I can control easily (using some kind of hobby board) that is able to perform linear positioning with a resolution of at ...
Freddy Tuxworth's user avatar
1 vote
2 answers
5k views

Powering and operating dual electric linear actuators

I am in the process of building a height-adjusting desk. I am pretty good with computers (I'm a programmer), but I never learned much in the way of electrical engineering. I recently purchased two ...
Patrick's user avatar
  • 212
1 vote
2 answers
2k views

Linear actuator torque control

I want to build aplication where I will provide defined force with linear actuator. DC motor is going to be stalled most of the time and and controlled torque should be applied. So at the actuator ...
Dado87's user avatar
  • 21
0 votes
2 answers
2k views

push/pull extending rod

Will start off by saying I know very little about electrical engineering :/ so I basically need to make some sort of push/pull extending rod it Doesn't have to be particularly strong, just needs to ...
user2649305's user avatar
0 votes
1 answer
1k views

controlling vibration frequency and amplitude of a motor

I want to build a hardware circuit that can control the frequency and amplitude of motors. I have a few questions about this. 1) What kind of actuator do I need to use? I have used ERM motors and the ...
user2270860's user avatar
1 vote
0 answers
469 views

Ways to control multiple linear actuators seperately?

I intend to control multiple linear actuators at the same time (20+). These actuators need ~9V each to run, and I simply want them to either be on (pulling) or off (relaxed). Each actuator is to be ...
EclecticallyElectrical's user avatar
2 votes
1 answer
5k views

What is the difference between push and pull solenoid? [duplicate]

I want a solenoid that stays retracted and propels forward when current is passed through it. Is there a solenoid that does this? What is the difference between push and pull solenoid?
Michael Rader's user avatar
-1 votes
2 answers
1k views

Many small and cheap linear actuators [closed]

Me and my friends are trying to build a linear actuator matrix. It's supposed to be a grid of pins that go up and down at reasonably fast speed (more than 1cm/s, the faster the better). Problem is, ...
shoham's user avatar
  • 183
3 votes
2 answers
4k views

How To Interpret PID Output in a Slow Response System

@Update: A few days have passed since I asked this question and I've had a chance to do some research based on the answers I've received from @R Drast and @Spehro. I'm not sure this update is the ...
Buck8pe's user avatar
  • 1,694
0 votes
2 answers
494 views

Rudder and Main Sail control

I'm creating an autonomous sailing boat and just looking into how to control the sail and rudder. The electronics will be low powered with the main brain being an Arduino. My problem is thinking of ...
Nathan's user avatar
  • 101

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