In this video Kyle and Jason compare linear servos and linear actuators. Linear Actuators and Linear Servos can be found at the URL below: www.servocity.com/linear-actu...
Thanks for the video. You both explained all the questions I had with perfect detail; opening the unit itself and displaying the inner working of the actuator was a bonus.!
The damn Actuonix linear actuators with potentiometer feedback don't even come with limit switches. I hit the limit for a just a second and the entire housing started warping. Damnedest thing I have ever seen. Glad you guys designed it right.
Great video, area there any problems that you are aware of regarding installing them in a hot humid greenhouse for ridge and side vent opening? Thank you.
I bought an actuator for my boat trim motor and it lasted about 3 weeks before it died. I made sure it was water proof and then I also sprayed it with water proofing. So that is one thing you forget to mention. It had much more dynamic and static load rating than I needed and was the correct voltage. It was slow but I would rather slow than not enough lift. Anyway, I would be interested to know what went wrong. The company had a 30 day return but by the time I was able to install I really only got about 3 weeks out of it and maybe had to lift the motor 8 times during that period. Can you comment on what may have/could have gone wrong ?
Thank you so much for the video..its very informative.. I had coded a program to set a timer to count the forward extension and reverse retraction of the actuator using 16f877a and to display the time in LCD.
GREAT VIDEO! I want to put an actuator on my lawnmower deck. How do I calculate the size, travel, and strength needed? The mower deck is roughly 200 lbs. Thanks!
Great video. My question is, can I remove the cover of my "Windy City" actuator and reposition either, or both of the limit switches to stop the extension, or retraction, at a particular position? Thank you.
Hey guys just stumbled upon your channel after trying to find a solution to a problem im having. I have little knowledge of anything to do with servos and could really use a hand figuring out what i need to do what i need to do. Im trying to make an exoskeletal arm brace/ elbow joint for my mum who suffered from arthritis and had many failed attempts at replacing the joint. She now has no elbow or bone 8 inches either side of where the elbow should be. Ive figured out the rigging now im stuck on how to wire up an actuator to extend and hold in place with one button and retract and hold in place when released with another. This is a long shot and im sure youre very busy but any push in the right direction would be amazing! Thanks for your time. Karl :)
Hi, thanks a lot for your interesting video; I just have a question if you permet Does the linear actuator contain a limit switch that stop it even if we're giving an order to the motor to move ( forward and backward) ? THANKS :)
Looking at one of these linear servos to convert a riding mower into a RC mower. Gonna need one for steering, and a light duty one for actuating the hydrostatic transmission control lever. It's gonna be sweet!
Nice video. Very helpful indeed. I have been going through some linear actuator sites, they mention usage rate or duty cycle like 20% in their specifications, what does this mean?? Could anyone explain. I am looking for a linear actuator , 80MM/sec speed, with Hall effect encoder for position feedback. The actuator would be active every 2 minutes, with rest periods of 2-5 minutes. Will this type of operation affect the life of the motor ??
The output force can be varied by changing the voltage or limiting the current supplied to the motor. If you want to have even more control there are force sensors available that could be used in conjunction with a motor controller as a closed loop system. Please let us know if you have any other questions tech@servocity.com
It sounds like you're after a linear servo of some sort, likely combined with a microcontroller to send it position commands such as an Ardunio (www.servocity.com/pololu-a-star-32u4-prime-sv/) To interpret the signals from a solar tracking sensor or something of the like.
Hello! Great video. Is it possible to create an automatic reciprocating (preferably adjustable) movement with a linear actuator (without having to turn a switch back and forth) and if so what equipment would one need? Thank you so much 😊
Very good demo.I like the contrast between you two, I actually learned a lot from two perspectives, that was very thorough and satisfying considering my obsession with finding out everything tech,especially electric motors I will subscribe and like. I love the way you get down to business, no extra B.S. I’m a K.I.S.S. fan myself, keep it simple is usually my aspect on things, I also enjoyed the disassembly, appreciate the convinces you 2 have provided and fantastic presentation!
I have a few questions about the linear servo. I would like to do position control what would I need for this? Just a PWM Signal? Also this has a Yellow, Black and Red wire which is which?
Yes, a PWM signal will tell the linear servo exactly what position it needs to be at (just like a normal servo). On a servo lead the Red wire is + the black wire is - and the yellow wire is signal.
Thanks for a great instructional video. I am going to use actuators to control my boats speed and shift her transmission. Do you know of any better suited for the marine environment?
While there are marine grade linear actuators on the market, we do not offer them or have a suggested source that we know to send you to unfortunately. Feel free to reach out to our Tech Team should you have any other questions tech@servocity.com.
hello, excellent video !!! Do you know if the linear servos or the linear actuators would have the necessary force to be able to step on the clutch of a mechanical car? If so, please recommend one. I am disabled, I appreciate your response.
Glad you found our video helpful, Braulio. Yes, a linear actuator or linear servo is capable of actuating the clutch on a vehicle. There are a lot of variables involved such as the position of the actuator in relation to the fulcrum, the type of clutch (mechanical, hydraulic, etc.), the pressure of the clutch, rated force of the actuator, etc. Please contact us should you have any additional questions tech@servocity.com, we'd be glad to help.
In terms of controlling the analog potentiometer, do you have any equipment on your website or alternate suggestions which connects to a PC, allowing one to set the actuator position by computer? Thanks guys!
At this time we do not sell any products which allow you to read an analog signal (such as from a potentiometer) from an PC. That being said you might take a look at microcomputers as a means of doing this depending on your project requirements. Please let us know if you have any additional questions tech@servocity.com
You guys are great together, Cracked me when you pulled out the linear servo how Jason was looking at you thinking "why is this dude trying to one up me man"
First it's not up and down. It's in / out or extend / retract. Next the screw rotates, it doesn't move in or out. The lead screw nut is what travels along the lead screw and Push Rod / Extension Tube is attached to that nut. The gears that drive the lead screw are a combination of a worm drive/screw that drives the rest of the spur gears. OOPs My apologies. The one he is showing here does not use a worm gear. It is just a set of spur gears.
For my application I need 2, of the 2" Stroke 115 lb Thrust Heavy Duty Linear Actuator, I wanted to know if I could use a, "Thrustmaster USB Joystick (PC)", or which one do you recommend. I don't understand much. I have seen your video. Thanks Raffaele
Great review. I have a question. If you stop it in the middle before it hit the limit switch and keep for a few hours does it use any electricity and drain the battery?
The current draw will be considerably less given the motor is going to be at idle but it will continue to draw from your battery until it's turned off of the battery is discharged. Let us know if you have any other questions tech@servocity.com.
Hi David, there are various ways you could go about it. For example you could use a limit switch ( www.servocity.com/electronics/components/switches/limit-switches ) that is physically engaged to turn on the light. Or you if you are using something like an Arduino or Raspberry Pi with a servo hat you could use a linear servo ( www.servocity.com/servos/linear-servos ) and a PWM switch ( www.servocity.com/electronics/components/switches/pwm-switches ) and send two PWM signals, one to control the linear servo and one to turn on the light via the PWM switch. You could also use a PWM switch with a Y-harness and linear servo to run them both off of the same PWM signal (like from an RC receiver or Arduino, Raspbery Pi etc) but the light would turn on the entire time the servo is extending and not just at full extension. Let us know if you have any other questions tech@servocity.com.
A couple questions! What is the noise rating on the servo? Also, if I were to open the servo and move the limit switch on the fully-extended side (desolder, drill, solder), would the servo have a correctly-functioning shortened range? I'm looking to do ~85 lbs with a ~1.5" throw and it would be excellent to have the safety in hardware, not software.
Hi guys! I have been enjoying the channel! Thanks for all the useful info! I have a question about linear actuators and remote setups that - I don't know if you could answer for me? But I thought you might at least be able to point me in the right direction... I have a project I'm working on that requires 2 sets of actuators. I would like them to operate independently and I am trying to use 1 power supply and 1 2-4 channel remote. Let me know if you can help. Take care!
Thanks, Ryan and glad you've found our videos helpful! Our Tech Team has sent an email your way to answer your questions. Let us know if there is anything else we can assist with.
Awesome vid...does the amp of battery effect the actuator? Asking because I plan to install 2 linear actuators in my truck and debating if I should tap off the truck battery or off separate battery. Thanks
Thanks, Benjamin. If you are running linear actuators, you can tie them into your vehicle battery without a problem. The motor in an actuator won't be bothered by the fluctuation in voltage due to the alternator. More care would need to be taken if a micro-controller were in the equation. Feel free to email us should you have any other questions tech@servocity.com.
Hi Joshua, the internal limit switches on the super duty line of linear actuators can be adjusted independently of one-another (th-cam.com/video/3jzyQ5gQUFE/w-d-xo.html). Limits on the heavy duty actuators are fixed on a molded rail. Let us know if you have any additional questions tech@servocity.com.
Hey, what would I need in order to be able to control force, so let's say it's some kind of actuator that can pull max force of 100lbs but if I set it half way then I can still pull the full range of actuator range but it would be 50 lbs, quarter setting 25lbs, ect.??? So like a shock absorber but with on the fly resistance control?
It depends on the torque required to rotate the valve but a conventional servo would be a good candidate for this application. Feel free to email our Tech Team with specifics and they'd be glad to help answer any additional questions tech@servocity.com.
I have a question. Can I use the linear actuator to do the automation of the window in smart buildings? Can i control it using my daq and labview ? In my case, the windows must open depending on the temperature of the space.
Hi Julien, if the stroke and thrust of the linear actuator is adequate for the task then it should be a fine option. From a control standpoint, an actuator could be wired to a motor controller and it would be up to the controller that you choose to sense things like temperature. Feel free to email our Tech Team should you have any other questions tech@servocity.com.
I am looking for some ideas as to how to build an old school arcade driving cabinet like Out Run where with the turn of the wheel, the base would move. I am thinking about putting an actuator or servo, I think 4 will do the job. But what I don't know is where to start or look for. Would something like these work at high speed sensitivity and would they handle the weight? I originally was looking at hydraulics, but outside of weight, they would seem slow. Suggestions?
Thank you for reaching out to us. If you could please send additional specifications to our technical department they would be happy to help with some recommendations at tech@servocity.com
Very useful video.because of the situation I will put it,sometimes it will work manual,so the power sometimes will be from the bracket to servo motor.Can it move?Will it may do a problem to the servo motor?
Hi, I have question, I have got the Linear 12 V -DC, 300N, 50mm stroke length the same as Jason tested. I connect to Adaptor 500 mA, but does not work is it because I need more Ampere for 12 v dc adaptor?
I am ready to buy the linear servo for an autonomous boat installation using the PIXHAWK Flight/ navagation controller A- How do I go about connecting the pixhawk to the linear servo?
Hi guys and thank you for sharing......Can you please make a video or guide me on how I can program it so it can automatically moves to a position stop for a few sec and than move to a the location and repeat the process..... ..tnx u
Hi George. Although either a linear servo or linear actuator could be made to do that, it would be more simple with a linear servo. An exact example would depend on how you want to go about controlling it. A no-programming option would be to use a servo recorder (part number SPC2000). Or you could use an Arduino and alternate between the servo.writeMicroseconds command and the delay command. Feel free to let us know should you have any additional questions tech@servocity.com.
I am looking for a mechanical device that creates more force in one direction than the return stroke. to shake gold particles along a shaker table. if the force is equal = no movement gained. any ideas.
That was an awesome demo guys..I have a question..I am trying to build a scale model of an excavator using the hydraulic principle with syringes.these motors act as Pistons so I should be able to use them instead right,I want to know what torque do these motors have cause I want my excavator to dig and lift just like the real thing.are they expensive to buy and could you pls do a demo on how to convert it to remote control..tnx guys
You can certainly use linear actuators or linear servos in place of hydraulics if the speed, thrust, stroke length and overall size fit your model. Since we’re quantifying a linear force they are rated in pounds rather than a torque measurement. The amount of weight it can lift will depend on the placement of the actuator in your assembly. Prices vary based on what selection you make; we have HD linear servos which are the most plug-and-play solution for r/c. We offer HD linear actuators that are less expensive but more intensive to hook up to R/C (require a motor controller that can convert the PWM signal to a voltage that would get sent on to the motor). and SD linear actuators which are the same as the smaller ‘HD’ linear actuators but beefier for more industrial applications. The video covers how to connect a linear servo or linear actuator to a servo controller. An R/C transmitter and receiver is just a wireless servo controller so it’ll connect the same way. Please let us know if you have any additional questions tech@servocity.com
Super!!!tnx for the prompt reply!! Another question..how does the boom of a crane extend..do they all have multistage cylinders or are they also equipped with linear actuators within each boom extension? And i.would really appreciate it if u could do a demo on how the excavotor rotates 360degs and still powers its tracks without its wirings and hydraulics getting twisted in the slew ring.i have looked online but not really satusfued with info or the lack of detail given. Cheers bros!!
Here’s a link to a brief explanation of how a crane boom extends: answers.yahoo.com/question/index?qid=20081125153736AAiN8mW. I would have to do more research on an excavator before commenting on the rotating base; sorry I couldn’t be more assistance in that department. Let us know if you have any other questions tech@servocity.com. Thank you
Hi, I'm thinking of using the Linear Servo (similar to the one Jason used in this video) to drive my syringe pump. I am quite clueless on this and trying to find the right controller and battery. Which controller was used in this video? And what was the ampere hour draw of the battery used in the setup on the video (I would like to know what level of the ampH battery to buy)? Thanks
Hi Angelique, we're happy to help answer your questions. The linear servos will run on any type of servo controller able to operate a hobby servo. The Actobotics Dual Servo Controller (www.servocity.com/actoboticsr-servo-controller-w-enclosure) was used to operate the linear servo in the video (reference 6:30). The battery was just a lawn mower battery so that the power source would be quickly recognizable by viewers. Any 12V source will be fine so long as it can provide enough current to operate your linear servo (more applicable when selecting the proper power supply that plugs into the wall). The capacity of the battery will depend on the desired run-time and the current draw from the linear servo will depend on the load and frequency of movement. If you have any other questions feel free to let us know! tech@servocity.com or 620.221.0123
I fail to understand why the grey bearded guru doesn't talk a lot in this video, he really deserves it. I miss more of his technical explanations about the other system. I would love a more complete and technical video of both systems (and even more) work 1:1 comparisons (doing exactly the same task, same conditions, etc)
Linear servos have five wires total. The large red and black, terminated with a tamiya connector are for 12VDC power. The black, red and yellow with a TJC8 servo connector are to go to your servo controller. Linear actuators have five wires too. The red and the black go to the motor, the blue, yellow and white go to the potentiometer. Please feel free to email our Tech Team should you have any additional questions and we'd be glad to help! tech@servocity.com.
Here's a video on how to adjust limits on the Super Duty linear actuators. th-cam.com/video/3jzyQ5gQUFE/w-d-xo.html Heavy Duty linear actuators do not have adjustable limits. Please let us know should you have any other questions tech@servocity.com.
THANX A LOT FOR THE VEDIOS AND I NEED SOMEHELP PLS ! i want to understand the application for Linear Servos & Linear Actuators in automatic systems .... ?
Glad you found the video helpful. We'd be glad to help answer you questions. Please contact us at tech@servocity.com with your questions and we'll be in contact. Thank you!
i, I have an INCA TV lift with a tubular motor. We lost the remote, and lift got stuck in up position. Any advice how to bring it down? Any ideas or how to reverse the motor movement? Highly appreciated. Thanks for sharing awesome ideas.
Hello! That sounds much outside the realm of our technical support. If you'd like you can send our team an email and see if they can help you out. But no guarantees they will be able to assist troubleshooting other company's products. tech@servocity.com
Hi. I was considering to use a linear actuator to change the tilt angle of a structure holding solar panels. Overall, around 200kg. Would this option vaild to keep the structure to a certain angle for longer periods? Or the weight would push it back? Thanks
Hello thank you for reaching out to us. Please email our technical team at Tech@ServoCity.com with your project details and they would be more than happy to help you.
Kyle/Jason, What could be the maximum speed that these rods can extend at?? I need something that can push or pull really really very fast. Is that possible??? Saba.
Hi Saba, the pitch and RPM will determine max linear speed. Lead-screws are not normally chosen for high-speed. Pneumatics might be a better option for you. Let us know if you have any other questions tech@servocity.com.
Linear Actuators and Servos would be nearly impossible to move by hand with their 500lbs. static load. Let us know if you have any additional questions tech@servocity.com.
If your still around I would like to ask a question. I have an actuator that has stopped working (extending and retracting) and need to raise (retract) the shaft to its shortest length. What would be the simplest way to do this manually, if possible?
It depends on the design of your actuator, but if you can access the lead screw driving the piston, just rotate the lead screw manually (assuming it will still turn) to manually extend/retract. Feel free to contact us should you have any other questions tech@servocity.com.
Hi Parish, yes, that's one way to make a linear servo. Keep in mind that normal threaded rod is not meant for creating linear motion but for fastening. The threads of a lead screw are cut much smoother and more consistent to create linear motion while minimizing friction. Please let us know if you have any other questions tech@servocity.com. Thank you
I wanted to know if it is possible to connect a dual motor controller to a computer, so that the speed and position may be controlled by using a software.
Is there an easy way to get this to go one way with a single wire that powers on, then reverse when power to that wire goes off? I was trying to think of a way to include a dpdt relay and i think that's the idea but i can't think of how to flip the polarity using that single wire's power change.
Interestingly I made this ( circuits.io/circuits/2563498-dpdt-relay-to-toggle-polarity-via-on-off-switch ) recently to illustrate this very thing to someone. This of course would apply to the linear actuators not the linear servos. If you are using a microcomputer/microcontroller you will either want to find a DPDT relay which does not exceed the current rating of your pins (for example Arduinos are generally 40mA) or you could use a transistor to turn the DPDT relay on/off. Sort of like this ( www.instructables.com/id/Simple-Cheap-Motor-Controller/ ) only going to the relay instead of a motor and pulling it high/low instead of sending it a PWM signal.
I just checked out the circuits.io link with the relay. That will do exactly what i want. thanks. I just found the motor controller you're using too. I want one but i don't know if moving a light back and forth on the front of a truck is worth that much even though it would help me locate sasquatch.
Is there a servo or actuator that is big enough to reach 8-10 feet? Or something that can reach close to that height? Working on a project for wireless surveys and need something like this to add to a pi
There are some very large linear actuators on the market, but I doubt you'll want to tote something of that scale around given the weight that is likely to be associated. If you take on building something for your application you might get some inspiration from an extension ladder; pull the rope and it extends out. You could use a motor to reel in the rope or cable that you use to drive your assembly. Feel free to email our Tech Team should you have any other questions tech@servocity.com.
Hi there, I've just bought one from ebay very similar to the one in your video. Its 12v but much slower than I've seen in your video or any video. Is there something wrong with it?. Help appreciated Andy
That's hard to say given it's not our product. It could be faulty or could just be a different ratio than what you're comparing it to. Please feel free to reach out to our technical team at Tech@ServoCity.com if you have any additional questions. Thank you.
Thanks for the video suggestion. We hope to cover that in a future episode but in the mean-time feel free to reach out to tech@servocity.com and they can help you with your setup. Thank you!
sorry, super duty not heavy duty.. tried that route first:) they suggested a TReX. but I ain't got the TReX, I got 2 roboclaws bc they could handle the load from 4 of your super duty actuators. would really like to see them hooked up with speed and position control😁ty
Thanks for the video. You both explained all the questions I had with perfect detail; opening the unit itself and displaying the inner working of the actuator was a bonus.!
The damn Actuonix linear actuators with potentiometer feedback don't even come with limit switches. I hit the limit for a just a second and the entire housing started warping. Damnedest thing I have ever seen. Glad you guys designed it right.
Great video guys, I will be using this information for sure! Will send you guys an email shortly regarding a project.
Thanks again for the upload.
This was an amazing video, thank you very much. Really liked that you taken it apart too.
+Colin Richardson Thanks, Colin!
Exactly what I was looking for, Thank you very much. :)
Thanks Tom and Dustin. Great job.
Great video with simple language for a complex system. I'm a absolute novice but learning so much from these videos, thank you
We're glad you find our videos helpful! As always, don't hesitate to contact us should you have any questions tech@servocity.com.
A great explanation. I now know 100% more than I did 12 minutes ago!
Glad you found it helpful! Let us know if you have any questions tech@servocity.com.
Great video, area there any problems that you are aware of regarding installing them in a hot humid greenhouse for ridge and side vent opening? Thank you.
Great video guys. Minor correction: You meant "double pole double throw" switch. Cheers
really appreciate this video now I know what I need
I bought an actuator for my boat trim motor and it lasted about 3 weeks before it died. I made sure it was water proof and then I also sprayed it with water proofing. So that is one thing you forget to mention. It had much more dynamic and static load rating than I needed and was the correct voltage. It was slow but I would rather slow than not enough lift. Anyway, I would be interested to know what went wrong. The company had a 30 day return but by the time I was able to install I really only got about 3 weeks out of it and maybe had to lift the motor 8 times during that period. Can you comment on what may have/could have gone wrong ?
To be more precise, DPDT = Double POLE Double Throw switch. Good intro to servos & actuators!
This WAS a really good instructional video. Excellent.
Thanks, Dennis! Glad you found it helpful and informative.
Thank you so much for the video..its very informative..
I had coded a program to set a timer to count the forward extension and reverse retraction of the actuator using 16f877a and to display the time in LCD.
Roopa B please help. How to read position of the actuator with reed magnetic sensor in arduino?
Very well edited and great info!
Thanks, Michael! Glad you enjoyed it!
GREAT VIDEO!
I want to put an actuator on my lawnmower deck. How do I calculate the size, travel, and strength needed? The mower deck is roughly 200 lbs.
Thanks!
Great video. My question is, can I remove the cover of my "Windy City" actuator and reposition either, or both of the limit switches to stop the extension, or retraction, at a particular position? Thank you.
Thanks Man, it was awesome video, I will be contacting you guys later on for assistance on my project.
Hey guys just stumbled upon your channel after trying to find a solution to a problem im having. I have little knowledge of anything to do with servos and could really use a hand figuring out what i need to do what i need to do. Im trying to make an exoskeletal arm brace/ elbow joint for my mum who suffered from arthritis and had many failed attempts at replacing the joint. She now has no elbow or bone 8 inches either side of where the elbow should be. Ive figured out the rigging now im stuck on how to wire up an actuator to extend and hold in place with one button and retract and hold in place when released with another. This is a long shot and im sure youre very busy but any push in the right direction would be amazing! Thanks for your time. Karl :)
Hi, thanks a lot for your interesting video;
I just have a question if you permet
Does the linear actuator contain a limit switch that stop it even if we're giving an order to the motor to move ( forward and backward) ?
THANKS :)
Bravo and thank you very much for this video
great video. it helped me. thanks
Glad you found it helpful!
Looking at one of these linear servos to convert a riding mower into a RC mower. Gonna need one for steering, and a light duty one for actuating the hydrostatic transmission control lever. It's gonna be sweet!
This video was fantastic!
Thanks, Tom. Glad you found it helpful.
Nice video. Very helpful indeed.
I have been going through some linear actuator sites, they mention usage rate or duty cycle like 20% in their specifications, what does this mean?? Could anyone explain.
I am looking for a linear actuator , 80MM/sec speed, with Hall effect encoder for position feedback. The actuator would be active every 2 minutes, with rest periods of 2-5 minutes. Will this type of operation affect the life of the motor ??
great video guys !
+Makayla Felipe Thank you, Makayla!
Dear Servo City, that is very helpful video, many thanks!!
I have one question though, is the any way to vary the output force of the actuator?
The output force can be varied by changing the voltage or limiting the current supplied to the motor. If you want to have even more control there are force sensors available that could be used in conjunction with a motor controller as a closed loop system. Please let us know if you have any other questions tech@servocity.com
Very well explained !
Very Nice Description. Can a Micro:bit or Raspberry PI be used to control the Linear Actuator? Thanks!
Thanks u very much 🙏 thats the information what am looking for excellent n informative 👍👍👍best
Great vid. Do you know would you go about controlling the specific position of the actuator throughout the day? Like for a solar tracker. Cheers!
It sounds like you're after a linear servo of some sort, likely combined with a microcontroller to send it position commands such as an Ardunio (www.servocity.com/pololu-a-star-32u4-prime-sv/)
To interpret the signals from a solar tracking sensor or something of the like.
this is what i looking for.. thanks for the video..
Glad you found it helpful!
Great info! Thanks!
Thanks, Phil. We're glad you found it helpful.
Hello! Great video. Is it possible to create an automatic reciprocating (preferably adjustable) movement with a linear actuator (without having to turn a switch back and forth) and if so what equipment would one need? Thank you so much 😊
arduino
Very good demo.I like the contrast between you two, I actually learned a lot from two perspectives, that was very thorough and satisfying considering my obsession with finding out everything tech,especially electric motors I will subscribe and like. I love the way you get down to business, no extra B.S. I’m a K.I.S.S. fan myself, keep it simple is usually my aspect on things, I also enjoyed the disassembly, appreciate the convinces you 2 have provided and fantastic presentation!
Thanks, Tommy! We appreciate the kind words and are glad you found it helpful!
I have a few questions about the linear servo.
I would like to do position control what would I need for this? Just a PWM Signal?
Also this has a Yellow, Black and Red wire which is which?
Yes, a PWM signal will tell the linear servo exactly what position it needs to be at (just like a normal servo). On a servo lead the Red wire is + the black wire is - and the yellow wire is signal.
excellent video!!! Thanks for posting....it really helped me out for the project I was working on.
You're most welcome. Glad it was helpful for your project!
Thanks for a great instructional video. I am going to use actuators to control my boats speed and shift her transmission. Do you know of any better suited for the marine environment?
While there are marine grade linear actuators on the market, we do not offer them or have a suggested source that we know to send you to unfortunately. Feel free to reach out to our Tech Team should you have any other questions tech@servocity.com.
hello, excellent video !!! Do you know if the linear servos or the linear actuators would have the necessary force to be able to step on the clutch of a mechanical car?
If so, please recommend one.
I am disabled, I appreciate your response.
Glad you found our video helpful, Braulio. Yes, a linear actuator or linear servo is capable of actuating the clutch on a vehicle. There are a lot of variables involved such as the position of the actuator in relation to the fulcrum, the type of clutch (mechanical, hydraulic, etc.), the pressure of the clutch, rated force of the actuator, etc. Please contact us should you have any additional questions tech@servocity.com, we'd be glad to help.
Nice, educational video. Thanks.
Glad you found it helpful!
😃 Espectacular muy bien 😃👍👍.
In terms of controlling the analog potentiometer, do you have any equipment on your website or alternate suggestions which connects to a PC, allowing one to set the actuator position by computer?
Thanks guys!
At this time we do not sell any products which allow you to read an analog signal (such as from a potentiometer) from an PC. That being said you might take a look at microcomputers as a means of doing this depending on your project requirements. Please let us know if you have any additional questions tech@servocity.com
in case of a real closed loop control, ism't it more correct to use the last stage sensor in place of in-box potentiometer?
Hi, Could you tell me what model linear servo you use in the video. What was the speed of it? Thank you.
You guys are great together, Cracked me when you pulled out the linear servo how Jason was looking at you thinking "why is this dude trying to one up me man"
thanks man! i just have a question, what do you call the gear that moves the threaded rod up and down?
The threaded rod (lead screw) gets rotated, it has a lead screw nut which moves up and down along the lead screw as the lead screw rotates.
First it's not up and down. It's in / out or extend / retract.
Next the screw rotates, it doesn't move in or out. The lead screw nut is what travels along the lead screw and Push Rod / Extension Tube is attached to that nut.
The gears that drive the lead screw are a combination of a worm drive/screw that drives the rest of the spur gears.
OOPs My apologies. The one he is showing here does not use a worm gear. It is just a set of spur gears.
For my application I need 2, of the 2" Stroke 115 lb Thrust Heavy Duty Linear Actuator, I wanted to know if I could use a, "Thrustmaster USB Joystick (PC)", or which one do you recommend. I don't understand much. I have seen your video.
Thanks Raffaele
Thanks for showing that actuator. I thought I would need a hydraulic cartridge to push something up, but that should work.
Glad you found it helpful, Ted. Let us know should you have any questions tech@servocity.com.
I loved the way the linear actuator moved. Way better than the servo's jerky moves.
Great review. I have a question. If you stop it in the middle before it hit the limit switch and keep for a few hours does it use any electricity and drain the battery?
The current draw will be considerably less given the motor is going to be at idle but it will continue to draw from your battery until it's turned off of the battery is discharged. Let us know if you have any other questions tech@servocity.com.
o yes, i thought it doesnt have feedback from the actuator. i need this on my thesis. thanks for the video.
Great video
Do you have an idea of the weight lifting capacity of these items?
kewl video guys!
Thanks, Joe!
I would like to trigger a light to come on when the actuator is fully extended. Is this possible?
Hi David, there are various ways you could go about it. For example you could use a limit switch ( www.servocity.com/electronics/components/switches/limit-switches ) that is physically engaged to turn on the light. Or you if you are using something like an Arduino or Raspberry Pi with a servo hat you could use a linear servo ( www.servocity.com/servos/linear-servos ) and a PWM switch ( www.servocity.com/electronics/components/switches/pwm-switches ) and send two PWM signals, one to control the linear servo and one to turn on the light via the PWM switch. You could also use a PWM switch with a Y-harness and linear servo to run them both off of the same PWM signal (like from an RC receiver or Arduino, Raspbery Pi etc) but the light would turn on the entire time the servo is extending and not just at full extension. Let us know if you have any other questions tech@servocity.com.
thanks you guys are awesome.
David Guyton i
@@sharpfinch5354 And it will be thew best thing for her.
David Guyton Yes its possible
A couple questions! What is the noise rating on the servo? Also, if I were to open the servo and move the limit switch on the fully-extended side (desolder, drill, solder), would the servo have a correctly-functioning shortened range? I'm looking to do ~85 lbs with a ~1.5" throw and it would be excellent to have the safety in hardware, not software.
Hi guys! I have been enjoying the channel! Thanks for all the useful info! I have a question about linear actuators and remote setups that - I don't know if you could answer for me? But I thought you might at least be able to point me in the right direction... I have a project I'm working on that requires 2 sets of actuators. I would like them to operate independently and I am trying to use 1 power supply and 1 2-4 channel remote. Let me know if you can help. Take care!
Thanks, Ryan and glad you've found our videos helpful! Our Tech Team has sent an email your way to answer your questions. Let us know if there is anything else we can assist with.
hi, I have one of those activators (4 inches) is what I can lift my tractor snowblower that weighs 300lbs, thank you.
Bravooooo.. thanks
Awesome vid...does the amp of battery effect the actuator? Asking because I plan to install 2 linear actuators in my truck and debating if I should tap off the truck battery or off separate battery. Thanks
Thanks, Benjamin. If you are running linear actuators, you can tie them into your vehicle battery without a problem. The motor in an actuator won't be bothered by the fluctuation in voltage due to the alternator. More care would need to be taken if a micro-controller were in the equation. Feel free to email us should you have any other questions tech@servocity.com.
@@ServoCity awesome, thank you!!!
Can the limit switches be adjusted moved so you don't over extend or under extend
Hi Joshua, the internal limit switches on the super duty line of linear actuators can be adjusted independently of one-another (th-cam.com/video/3jzyQ5gQUFE/w-d-xo.html). Limits on the heavy duty actuators are fixed on a molded rail. Let us know if you have any additional questions tech@servocity.com.
All the actuators like these have the limit switches set to do that already.
yesssss! they considered visual learners! gonna figure out how to pop these into a computer desk 😈
Forwarning, they aren't very powerful unless you pay a bit. Lifting an empty deal sure. But with a monitor and a few books it may struggle.
Hey, what would I need in order to be able to control force, so let's say it's some kind of actuator that can pull max force of 100lbs but if I set it half way then I can still pull the full range of actuator range but it would be 50 lbs, quarter setting 25lbs, ect.??? So like a shock absorber but with on the fly resistance control?
super video...ı was wondering the sytstem and thnxx really
Awesome work guys...I have some queries about the servo actuator...how can I contact you?
Hi Sammy, you can email tech@servocity.com with your questions and our team would be happy to assist.
What a racket those things make!!
Awaome video and display .. 👍👍
Thank you!
Thankyou very much
great video, what can i buy to open and close a ball valve 4" any suggestion?
It depends on the torque required to rotate the valve but a conventional servo would be a good candidate for this application. Feel free to email our Tech Team with specifics and they'd be glad to help answer any additional questions tech@servocity.com.
can this be use to move the handles in a hydraulic crane system?
I have a question. Can I use the linear actuator to do the automation of the window in smart buildings?
Can i control it using my daq and labview ?
In my case, the windows must open depending on the temperature of the space.
Hi Julien, if the stroke and thrust of the linear actuator is adequate for the task then it should be a fine option. From a control standpoint, an actuator could be wired to a motor controller and it would be up to the controller that you choose to sense things like temperature. Feel free to email our Tech Team should you have any other questions tech@servocity.com.
I am looking for some ideas as to how to build an old school arcade driving cabinet like Out Run where with the turn of the wheel, the base would move. I am thinking about putting an actuator or servo, I think 4 will do the job. But what I don't know is where to start or look for. Would something like these work at high speed sensitivity and would they handle the weight? I originally was looking at hydraulics, but outside of weight, they would seem slow. Suggestions?
Thank you for reaching out to us. If you could please send additional specifications to our technical department they would be happy to help with some recommendations at tech@servocity.com
Very useful video.because of the situation I will put it,sometimes it will work manual,so the power sometimes will be from the bracket to servo motor.Can it move?Will it may do a problem to the servo motor?
Hi Antonis, please email tech@servocity.com with your question and project specs and we'd be glad to assist. Thank you!
@@ServoCity Thank you very much. I have in my mind a concept which i dont know how to code. Can any body help me about this?
@@antonis2814 Hi Antonis, please email tech@servocity.com and we'll see how we can assist. Thank you!
Is it possible to have it extend and retract on a constant basis?
Hi, I have question, I have got the Linear 12 V -DC, 300N, 50mm stroke length the same as Jason tested. I connect to Adaptor 500 mA, but does not work is it because I need more Ampere for 12 v dc adaptor?
I am ready to buy the linear servo for an autonomous boat installation using the PIXHAWK
Flight/ navagation controller
A- How do I go about connecting the pixhawk to the linear servo?
Hi guys and thank you for sharing......Can you please make a video or guide me on how I can program it so it can automatically moves to a position stop for a few sec and than move to a the location and repeat the process..... ..tnx u
Hi George. Although either a linear servo or linear actuator could be made to do that, it would be more simple with a linear servo. An exact example would depend on how you want to go about controlling it. A no-programming option would be to use a servo recorder (part number SPC2000). Or you could use an Arduino and alternate between the servo.writeMicroseconds command and the delay command. Feel free to let us know should you have any additional questions tech@servocity.com.
I am looking for a mechanical device that creates more force in one direction than the return stroke. to shake gold particles along a shaker table. if the force is equal = no movement gained. any ideas.
That was an awesome demo guys..I have a question..I am trying to build a scale model of an excavator using the hydraulic principle with syringes.these motors act as Pistons so I should be able to use them instead right,I want to know what torque do these motors have cause I want my excavator to dig and lift just like the real thing.are they expensive to buy and could you pls do a demo on how to convert it to remote control..tnx guys
You can certainly use linear actuators or linear servos in place of hydraulics if the speed, thrust, stroke length and overall size fit your model. Since we’re quantifying a linear force they are rated in pounds rather than a torque measurement. The amount of weight it can lift will depend on the placement of the actuator in your assembly. Prices vary based on what selection you make; we have HD linear servos which are the most plug-and-play solution for r/c. We offer HD linear actuators that are less expensive but more intensive to hook up to R/C (require a motor controller that can convert the PWM signal to a voltage that would get sent on to the motor). and SD linear actuators which are the same as the smaller ‘HD’ linear actuators but beefier for more industrial applications. The video covers how to connect a linear servo or linear actuator to a servo controller. An R/C transmitter and receiver is just a wireless servo controller so it’ll connect the same way. Please let us know if you have any additional questions tech@servocity.com
Super!!!tnx for the prompt reply!!
Another question..how does the boom of a crane extend..do they all have multistage cylinders or are they also equipped with linear actuators within each boom extension?
And i.would really appreciate it if u could do a demo on how the excavotor rotates 360degs and still powers its tracks without its wirings and hydraulics getting twisted in the slew ring.i have looked online but not really satusfued with info or the lack of detail given. Cheers bros!!
Here’s a link to a brief explanation of how a crane boom extends: answers.yahoo.com/question/index?qid=20081125153736AAiN8mW. I would have to do more research on an excavator before commenting on the rotating base; sorry I couldn’t be more assistance in that department. Let us know if you have any other questions tech@servocity.com. Thank you
Do they make LAs that aren't DC? I'm concerned about brushes and that kind of wear. Do they make brushless LAs?
sir ,how much maximum weight lifts the actuator
Hi, I'm thinking of using the Linear Servo (similar to the one Jason used in this video) to drive my syringe pump. I am quite clueless on this and trying to find the right controller and battery. Which controller was used in this video? And what was the ampere hour draw of the battery used in the setup on the video (I would like to know what level of the ampH battery to buy)?
Thanks
Hi Angelique, we're happy to help answer your questions. The linear servos will run on any type of servo controller able to operate a hobby servo. The Actobotics Dual Servo Controller (www.servocity.com/actoboticsr-servo-controller-w-enclosure) was used to operate the linear servo in the video (reference 6:30). The battery was just a lawn mower battery so that the power source would be quickly recognizable by viewers. Any 12V source will be fine so long as it can provide enough current to operate your linear servo (more applicable when selecting the proper power supply that plugs into the wall). The capacity of the battery will depend on the desired run-time and the current draw from the linear servo will depend on the load and frequency of movement. If you have any other questions feel free to let us know! tech@servocity.com or 620.221.0123
ServoCity Thank you so much
I fail to understand why the grey bearded guru doesn't talk a lot in this video, he really deserves it.
I miss more of his technical explanations about the other system. I would love a more complete and technical video of both systems (and even more) work 1:1 comparisons (doing exactly the same task, same conditions, etc)
Does every linear electric actuator comes with these 4 wires, two for power supply and the other two for control?
Linear servos have five wires total. The large red and black, terminated with a tamiya connector are for 12VDC power. The black, red and yellow with a TJC8 servo connector are to go to your servo controller. Linear actuators have five wires too. The red and the black go to the motor, the blue, yellow and white go to the potentiometer. Please feel free to email our Tech Team should you have any additional questions and we'd be glad to help! tech@servocity.com.
Do you have any model that uses stepper motor instead?
Sir which are leading company of linear actuators like linak denmark
You didn't open up the linear actuator.. I wanted to open up mine to change the position of the limit switch.. Would you recommend to do so?
Here's a video on how to adjust limits on the Super Duty linear actuators. th-cam.com/video/3jzyQ5gQUFE/w-d-xo.html Heavy Duty linear actuators do not have adjustable limits. Please let us know should you have any other questions tech@servocity.com.
THANX A LOT FOR THE VEDIOS AND I NEED SOMEHELP PLS !
i want to understand the application for Linear Servos & Linear Actuators in automatic systems .... ?
Glad you found the video helpful. We'd be glad to help answer you questions. Please contact us at tech@servocity.com with your questions and we'll be in contact. Thank you!
i, I have an INCA TV lift with a tubular motor. We lost the remote, and
lift got stuck in up position. Any advice how to bring it down? Any
ideas or how to reverse the motor movement? Highly appreciated. Thanks
for sharing awesome ideas.
Hello!
That sounds much outside the realm of our technical support. If you'd like you can send our team an email and see if they can help you out. But no guarantees they will be able to assist troubleshooting other company's products.
tech@servocity.com
Hi. I was considering to use a linear actuator to change the tilt angle of a structure holding solar panels. Overall, around 200kg. Would this option vaild to keep the structure to a certain angle for longer periods? Or the weight would push it back? Thanks
Hello thank you for reaching out to us. Please email our technical team at Tech@ServoCity.com with your project details and they would be more than happy to help you.
Hey @MrSavage77 did you find any linear actuator that worked for that kind of load?? I'm looking for something similar for a project.
Kyle/Jason, What could be the maximum speed that these rods can extend at?? I need something that can push or pull really really very fast. Is that possible??? Saba.
Hi Saba, the pitch and RPM will determine max linear speed. Lead-screws are not normally chosen for high-speed. Pneumatics might be a better option for you. Let us know if you have any other questions tech@servocity.com.
Are there also linear actuators that you can also move by hand and get positional feedback?
Linear Actuators and Servos would be nearly impossible to move by hand with their 500lbs. static load. Let us know if you have any additional questions tech@servocity.com.
If your still around I would like to ask a question. I have an actuator that has stopped working (extending and retracting) and need to raise (retract) the shaft to its shortest length. What would be the simplest way to do this manually, if possible?
It depends on the design of your actuator, but if you can access the lead screw driving the piston, just rotate the lead screw manually (assuming it will still turn) to manually extend/retract. Feel free to contact us should you have any other questions tech@servocity.com.
Will it work if we use a hi torque dc geared motor to drive a threaded rod using a timer belt and a pully enclosed in a hard PVC pipe/casing?
Hi Parish, yes, that's one way to make a linear servo. Keep in mind that normal threaded rod is not meant for creating linear motion but for fastening. The threads of a lead screw are cut much smoother and more consistent to create linear motion while minimizing friction. Please let us know if you have any other questions tech@servocity.com. Thank you
Thanks for the advice. ServoCity has the best informative Vlogs.
Thanks, Parish. Glad we could help!
I wanted to know if it is possible to connect a dual motor controller to a computer, so that the speed and position may be controlled by using a software.
Not directly. It can run off of a PWM signal or analog voltage. Let us know should you have any other questions tech@servocity.com.
Is there an easy way to get this to go one way with a single wire that powers on, then reverse when power to that wire goes off? I was trying to think of a way to include a dpdt relay and i think that's the idea but i can't think of how to flip the polarity using that single wire's power change.
Interestingly I made this ( circuits.io/circuits/2563498-dpdt-relay-to-toggle-polarity-via-on-off-switch ) recently to illustrate this very thing to someone. This of course would apply to the linear actuators not the linear servos. If you are using a microcomputer/microcontroller you will either want to find a DPDT relay which does not exceed the current rating of your pins (for example Arduinos are generally 40mA) or you could use a transistor to turn the DPDT relay on/off. Sort of like this ( www.instructables.com/id/Simple-Cheap-Motor-Controller/ ) only going to the relay instead of a motor and pulling it high/low instead of sending it a PWM signal.
I just checked out the circuits.io link with the relay. That will do exactly what i want. thanks. I just found the motor controller you're using too. I want one but i don't know if moving a light back and forth on the front of a truck is worth that much even though it would help me locate sasquatch.
Is there a servo or actuator that is big enough to reach 8-10 feet? Or something that can reach close to that height? Working on a project for wireless surveys and need something like this to add to a pi
There are some very large linear actuators on the market, but I doubt you'll want to tote something of that scale around given the weight that is likely to be associated. If you take on building something for your application you might get some inspiration from an extension ladder; pull the rope and it extends out. You could use a motor to reel in the rope or cable that you use to drive your assembly. Feel free to email our Tech Team should you have any other questions tech@servocity.com.
Hi there,
I've just bought one from ebay very similar to the one in your video. Its 12v but much slower than I've seen in your video or any video. Is there something wrong with it?.
Help appreciated
Andy
That's hard to say given it's not our product. It could be faulty or could just be a different ratio than what you're comparing it to. Please feel free to reach out to our technical team at Tech@ServoCity.com if you have any additional questions. Thank you.
would you please do a video of your heavy duty actuators being controlled with the 2x30a roboclaw??
Thanks for the video suggestion. We hope to cover that in a future episode but in the mean-time feel free to reach out to tech@servocity.com and they can help you with your setup. Thank you!
sorry, super duty not heavy duty..
tried that route first:) they suggested a TReX. but I ain't got the TReX, I got 2 roboclaws bc they could handle the load from 4 of your super duty actuators. would really like to see them hooked up with speed and position control😁ty