I found Best Robot Actuator (GYEMS: RMD x8)

Ғылым және технология

I found really cool Quasi Direct Drive (QDD) Robotic Actuators. They have a normal position control and also a torque control. Here I tested them and they show the torque more than 30Nm. I was really impressed by the CAN protocol, it is well developed. If you need MIT Mini Cheetah like actuator, I really advise these ones.
Links:
www.aliexpress.com/item/10000...
www.aliexpress.com/item/10000...
Special thanks to my special Patrons: Wesley Corp and RobotDigg Shanghai!
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#Robotics #Robot #Actuator

Пікірлер: 346

  • @Skyentific
    @Skyentific4 жыл бұрын

    Best way to support my channel is to like, to comment, to share the video and to subscribe.

  • @christophemalvasio5569

    @christophemalvasio5569

    4 жыл бұрын

    the Best way to support your channel is to make companies with you !!!

  • @Texaca

    @Texaca

    3 жыл бұрын

    @Simon Julius ...what does that have to do with this video? it's not relevant to this channel, or the technology being tested in this video.

  • @user-sw2ed2xz8i

    @user-sw2ed2xz8i

    3 жыл бұрын

    Здравствуйте! У меня почему то на прямую через их драйвер не конектется, пишет

  • @devers6
    @devers64 жыл бұрын

    I want to tell you how much I enjoy watching all your videos. I am only casually interested in robotics; I have no real applications that I could use for myself. But I very much like watching your videos because you show the entire process of evaluating motors and mechanisms. I have been a CNC and 3D printing enthusiast for over 25 years now, and robotics may become affordable enough in the future that I might begin to dream up uses that I can’t envision today. But in the meantime I find great joy in watching all of your projects and experiments. You are one of my favorite channels, and I hope you continue with your videos because they are so informative and entertaining. I love how KZread brings the world together.

  • @sanjaybhatikar
    @sanjaybhatikar4 жыл бұрын

    I am amazed! I though something like this would be far more difficult. Thank you for opening my eyes to new possibilities.

  • @dieselphiend
    @dieselphiend4 жыл бұрын

    Thank you so much for sharing these! I've been looking for something like this for a very long time for the purpose of building a very advanced camera slider!

  • @abd-ullahel-sayed4102
    @abd-ullahel-sayed4102 Жыл бұрын

    This channel is heaven! thank you so much for your testing. THIS IS GREAT!

  • @chemicalcorrosion
    @chemicalcorrosion4 жыл бұрын

    As usual, awesome content! Thank you for sharing.

  • @viacheslavdobrovolskiy
    @viacheslavdobrovolskiy2 жыл бұрын

    Dude, it's so great that world have such a wonderful videomaker. I'm appreciate that your content is full of practical use and a little bit of humor.

  • @klausnielsen1537
    @klausnielsen15374 жыл бұрын

    There is something reassuring about your way of explaining and demonstrating your ideas and progress that I really like. Your could be a good politician.

  • @davidkooi4349
    @davidkooi43494 жыл бұрын

    Just subscribed. Thanks for the great information and resources!

  • @ScottOlsenctrlbreak
    @ScottOlsenctrlbreak4 жыл бұрын

    You're a cool dude, genuinely. I dig it. Definite like and subscribe. Keep going.

  • @hemreozgur
    @hemreozgur4 жыл бұрын

    Thanks for the nice video and consistent test method.

  • @protesisroboticamexicana5296
    @protesisroboticamexicana52964 жыл бұрын

    Thank`s you to share your work with the best attitude!!!

  • @BebenX
    @BebenX4 жыл бұрын

    I really appreciate these videos, I wish you great success.

  • @skydivekrazy76
    @skydivekrazy764 жыл бұрын

    Thank you for making these videos.

  • @bhong69
    @bhong694 жыл бұрын

    your video is really helpful for me (i'm a programmer in s.korea). thank you so much.

  • @bernard2735
    @bernard27354 жыл бұрын

    Good to find someone who knows so much. Liked and subscribed.

  • @10356665
    @10356665 Жыл бұрын

    Professional content and very clear and light way to explain

  • @tonysfun
    @tonysfun4 жыл бұрын

    Very well done presentation! I came because of James Bruton youtube channel and he loves your channel also! I had to become a subscriber, because of your honesty! Thank you very much!!!

  • @manoharsambandam4402
    @manoharsambandam44024 жыл бұрын

    Thanks for the good review , very useful

  • @atefbenhazem9073
    @atefbenhazem90734 жыл бұрын

    Hi, it's a really nice actuator, thank's for share :D

  • @gawags4709
    @gawags47094 жыл бұрын

    These are awesome! Great video

  • @EcoGreensFarm
    @EcoGreensFarm4 жыл бұрын

    Thank you for sharing! Very good info.

  • @Skyentific

    @Skyentific

    4 жыл бұрын

    Thank you for your comment!

  • @trinityklinkert9021
    @trinityklinkert9021 Жыл бұрын

    Great videos thank you so much, this helped me so much.

  • @BenKatz
    @BenKatz4 жыл бұрын

    It has been super strange to see something I designed copied by so many Chinese vendors, and then reviewed by people on the internet.

  • @columbustalley330

    @columbustalley330

    4 жыл бұрын

    You might as well release the CAD now so at least the clones are of better quality ; )

  • @Nill757

    @Nill757

    4 жыл бұрын

    Miss your periodic videos. Hope Life is good at Boston D.

  • @montanacaleb

    @montanacaleb

    4 жыл бұрын

    Could you give me a link so i can buy from you?

  • @alexmeakins

    @alexmeakins

    4 жыл бұрын

    Nice work tends to end up in some fun places.

  • @Skyentific

    @Skyentific

    4 жыл бұрын

    Ben Katz if this is a great product, why not? :)

  • @phuoctholy3936
    @phuoctholy39364 жыл бұрын

    very good lesson. It is easy to undestand. Thank you

  • @taivovutt6869
    @taivovutt68694 жыл бұрын

    Thanks! Very interesting and useful.

  • @fischertechrobots
    @fischertechrobots4 жыл бұрын

    Thx for your videos!

  • @Texaca
    @Texaca3 жыл бұрын

    10:06 ...nice socks. lol Great job on the video, it is very informative. I always wondered how these devices worked. I have been very interested in this technology, since seeing the HAL (Hybrid Assisted Limbs) exoskeleton in a video, that was developed by Cyberdyne in Japan. Thanks for sharing your knowledge. --- Alfredo @ Tyler, TX, USA

  • @cheneychen1247
    @cheneychen12474 жыл бұрын

    Thank you for sharing!Very useful

  • @protesisroboticamexicana5296
    @protesisroboticamexicana52964 жыл бұрын

    Good video and explanation, you rock's, thx!

  • @Skyentific

    @Skyentific

    4 жыл бұрын

    Thank you a lot!

  • @protesisroboticamexicana5296

    @protesisroboticamexicana5296

    4 жыл бұрын

    @@Skyentific Than's for share your work with the best attitude!!!

  • @allenmaker2718
    @allenmaker27184 жыл бұрын

    Thanks a lot, very interesting!

  • @BunkerSquirrel
    @BunkerSquirrel3 жыл бұрын

    Watching it jump in his hand when he changes direction is both scary and beautiful. Like watching that guy with the bear sanctuary play with his bears.

  • @charlesohams9518
    @charlesohams95182 жыл бұрын

    Great content, I find your videos very informative, however could you look at the feasibility of using clearpath servo motors for robotic arm projects?

  • @zhaoyuangu4621
    @zhaoyuangu46214 жыл бұрын

    Hi, this is a really nice video. Thanks for uploading. I wonder if you have tested the peak current it takes to reach the 31+ Nm? Thanks again!

  • @mattanimation
    @mattanimation4 жыл бұрын

    "It's almost like on those fancy KZread channels", heheh this is a fancy KZread channel! working on frickin' robot arms

  • @Skyentific

    @Skyentific

    4 жыл бұрын

    Thanks!

  • @vonries

    @vonries

    4 жыл бұрын

    at those prices for each of those it better be.

  • @NathanBuildsRobots
    @NathanBuildsRobots3 жыл бұрын

    Thanks for bringing attention to these actuators. I bought one for a project. Do you have a video that details how to use the CAN bus?

  • @Gargantuanman91
    @Gargantuanman914 жыл бұрын

    Hi first of all very interesting videos keep the great work, secondly which D printer do you use for making your parts? thank you very much

  • @PhG1961
    @PhG19614 жыл бұрын

    Excellent video and really both products are just beautifull !! Unfortunately a little expensive for me as a hobbyist...

  • @anasghobj8044
    @anasghobj8044 Жыл бұрын

    thank you for such video

  • @ukyakin
    @ukyakin4 жыл бұрын

    Очень познавательное видео, большое спасибо)

  • @Skyentific

    @Skyentific

    4 жыл бұрын

    Большое спасибо за добрый комментарий!

  • @alsonic19
    @alsonic194 жыл бұрын

    good information, thank you

  • @miguelangelgamboagamboa8196
    @miguelangelgamboagamboa81964 жыл бұрын

    great job!!! thanks!!!!

  • @ChainsawDNA
    @ChainsawDNA2 жыл бұрын

    Excellent video

  • @Tobbera
    @Tobbera Жыл бұрын

    Great review! Could I ask you if you have any idea about the backdrive reistance? With this I means what effort (Nm) is needed to manually drive the output shaft when the actuator is turned off. In my project it is very important that the device can be manually overrriden without adding too much resistance. Thank you in advance!

  • @happyhayot
    @happyhayot6 ай бұрын

    Hey, great review! Do you still have the documentation of this motor by any chance? It would be really useful. Thanks

  • @MetalRobotics
    @MetalRobotics2 жыл бұрын

    great video!!!!... can you please explain a little bit about what is torque control mode and how you used it in this actuator.

  • @aravinthkumar7924
    @aravinthkumar79244 жыл бұрын

    Nice video and actuator. Is it possible to review some cobot (collaborative robot) joint actuators like Universal Robots, Han's robotics?

  • @johannscharfetter6686
    @johannscharfetter66863 жыл бұрын

    Thank you for this video. It helps me a lot. Please could you explain how information from the motor can be read on the Mac. Which program is needed for that? It is shown on the video at 7 min 28 sec.

  • @braindeadbzh
    @braindeadbzh4 жыл бұрын

    So beautiful motors 😍

  • @AppleCakes7
    @AppleCakes74 жыл бұрын

    Very cool! are there numbers available for inertia and friction? also I wonder how higher rpm operation is

  • @derickghoda1947
    @derickghoda19472 жыл бұрын

    Great review. I would like to know if this motor has an internal brake that can prevent it from turning when there is no power to the motor. Just like in an industrial robot where the robot arm segments stay in place when the robot is turned off.

  • @jcims
    @jcims4 жыл бұрын

    I would love to make a 2 axis gimbal platform for a telescope/camera out of something like this for tracking terrestrial things like rocket launches and races. Do they provide any kind of measure of mechanical vibration in the drive? What is your subjective experience based on tinkering with them?

  • @christianmackin9465
    @christianmackin94653 жыл бұрын

    Great video! It inspired me to buy the RMD-X8. Would it be possible for you to publish the code you wrote to test the actuator?

  • @NickTheHunter
    @NickTheHunter4 жыл бұрын

    Good video! Thank you :) What is the nominal speed of the motors?

  • @Martin-xb2rz
    @Martin-xb2rz2 жыл бұрын

    This is so helpful for my 6 axis 3d printer

  • @user-re5oj9bp1f
    @user-re5oj9bp1f Жыл бұрын

    nice video really like it,,, is it necessarily to use termination resistor ??!! and why??

  • @JuwhanYoo
    @JuwhanYoo3 жыл бұрын

    Hi, Could you explain how to adjust PID values with that? For reference, I have a plan to develop SCARA arm (H: 68cm, L1: 30cm, L2:30cm) using use RMD X8 Pro.

  • @janoskeresztes8323
    @janoskeresztes83233 жыл бұрын

    Hi, thank you for sharing this video. I just bought one. Could you also share your Ardunio code you used for your demo? Thanks

  • @juanpablocanguro
    @juanpablocanguro3 жыл бұрын

    Hi! we are experiencing difficulties trying to find a good way to home the actuator, it comes with an absolute encoder, but unfortunately it is not mounted on the output shaft, but on the motor shaft, so we can detect home in the 0-360 range of the motor shaft, however, we dont know on which of the 6 positions of the gearbox output it is on... not without adding an extra encoder, limit or home switch and a routine. Are there any similar motors out there that do have an output shaft encoder, or how do you recommend we go around this? Thanks!

  • @umerhuzaifa4927
    @umerhuzaifa49272 жыл бұрын

    Thanks for sharing. Is it typical to include another gear with these actuators? Any harm in doing so?

  • @user-bp4qz5ps8m
    @user-bp4qz5ps8m2 жыл бұрын

    Welcome. I have a question about the universal robot arm, how is the mechanism of moving the arm by hand and then storing the movement, explain this please

  • @vaclavdemeter7608
    @vaclavdemeter76083 жыл бұрын

    Hello. Can you please described me the torque mode? Do i understand correctly, that if i want to rotate a motor with constant speed, and constant torque, than my input via can is only :"direction, speed, desired torque"? Or desired torque is set only via config limiting current? Can i during motor operation change all these parameters? Thank you very much

  • @uawinwin
    @uawinwin4 жыл бұрын

    Skyentific what will be if you increase torque it will corrupt actuator? for example if i want use actuator for milling wood plate i should use some reduction gear ?

  • @anonymous.youtuber
    @anonymous.youtuber4 жыл бұрын

    Nice video !

  • @Skyentific

    @Skyentific

    4 жыл бұрын

    Thank you!

  • @johannscharfetter6686
    @johannscharfetter66863 жыл бұрын

    In minute 4:37 you mention that you implemented two termination resistor on the cable that goes from the CanBus shield to the RMD X8 Motor. Please can specify which termination resistors you used and in which sequence?

  • @Mikle_Fedorov
    @Mikle_Fedorov4 жыл бұрын

    A very interesting option is a motor wheel from a gyro scooter. 600rpm and 350W nominal. very large Nm and no backlash. the price for a motor is only $ 30-40. I controlled using a VESC controller. very well you can configure the necessary PID. I will assume that the difference in Nm is ~ 1.5. in favor of gear with play :-( but just by increasing the voltage you can easily raise the current -> Nm. I turned the 36V motor from 60V. without heating I could not give a continuous load. but the most important thing is WITHOUT BACK LASH!

  • @macteh7298
    @macteh72984 жыл бұрын

    Wow, for a robotic student seeing these actuators is sooo pleasing to the eyes. If possible plz do make a video of some of the options for the feedback systems that we can use in case of using a normal DC motor with gearbox (not a stepper motor) for the actuators. This is my project actually sothat we can use the DC motor of our choice.

  • @SLLabsKamilion

    @SLLabsKamilion

    4 жыл бұрын

    So basically, making these nice cheap multipole actuators completely worthless by switching back to a design with no holding torque, phase backlash, big EMF capacitors, and terrible positional control.

  • @prometheususa
    @prometheususa3 жыл бұрын

    I am wondering how shock resistant the gear train is. For legged applications, you might overload the gears momentarily.

  • @Nill757
    @Nill7574 жыл бұрын

    Well done.

  • @AndriiShramko
    @AndriiShramko4 жыл бұрын

    Здравствуйте. Подскажите пожалуйста сопротивление у обмоток этих моторов. Нужно попробовать их использовать с другими CAN контроллерами. Спасибо. Надеюсь найдете время померить. Хорошего дня!

  • @772777777777777
    @7727777777777774 жыл бұрын

    Great channel... Love your explaination and your details... i would lo e to build 7 dof to hold a industral router. Question have you ever looked at clear path servo motors?

  • @Skyentific

    @Skyentific

    4 жыл бұрын

    Thank you. Theoretically, if you would like to make serial robot, clearpath servos are a little bit heavy for its torque. You would need to use a large reduction gearbox. Personally, I never used these servos.

  • @772777777777777

    @772777777777777

    4 жыл бұрын

    @@Skyentific i was thinking of using a 5kw atc spindleon the end of the arm.... aprox 20kg....which means redesigning your fram i would..love to 3d print a mold of it..would require redesigned heavy duty supports and thicker bracing support and cast the peices from carbon fiber shell filled mineral cast expoxy....yes...much heavy industrial robotic arm..using clearpath servo and..harmonic gears... Where can find a free 3d cad model of this or simular 7 dom arm

  • @catalinaguta4613
    @catalinaguta4613 Жыл бұрын

    Hi! Where can I find the motor control protocol documentation that is used in this video?

  • @aarondcmedia9585
    @aarondcmedia95854 жыл бұрын

    66.7% Positive feedback for an aliexpress store only open since Oct 2019 seems kinda poor?

  • @gerokatseros
    @gerokatseros4 жыл бұрын

    I m thinking of using those strong and cheap compaired to this , e-skateboards brushless motors along with odrive or FSESC that cost one fourth of this actuator for a robotic arm

  • @csi9915
    @csi99153 жыл бұрын

    may I know how to diy the CAN connect cable like you do?

  • @timuvlad6764
    @timuvlad67644 жыл бұрын

    How did you calculate the backlash of the arm? I can't seem to find it online

  • @Tehknein
    @Tehknein Жыл бұрын

    Does the No driver model come with a encoder still? I’d like to use odrive. Wasn’t sure if these have a driver board with a integrated encoder on a outboard shaft or some thing similar

  • @piethelderop8085
    @piethelderop80853 жыл бұрын

    I have the steadyWin actuator, i suppose you have to calibrate motor before it will move at all :-). The red light comes up , but no movement

  • @alfiolocatelli5093
    @alfiolocatelli50934 жыл бұрын

    Very interesting! they are not the cheapest thing on this earth but they seems good, maybe for the 7Axis new robot !

  • @stepbystep-robotics6881
    @stepbystep-robotics68814 жыл бұрын

    This is the servo that I mentioned to you on your previous video but you haven't replied to my question. Anyway, yeah the good thing is it can read position in multi-turn. But when ever you turn off the power and power again, the servo will lost its absolute position, so you may need to calibrate every time you reboot the servo to get the absolute output shaft position. It's just a small issue, just point out to you :) anyway nice video again!

  • @UnidudeNine

    @UnidudeNine

    3 жыл бұрын

    Do you have any idea what library he's using? I can find an "mcp_can" library by searching on github, but none of the ones I found were compatible with his code.

  • @vjszq4
    @vjszq44 жыл бұрын

    To build robotic arms, you need lightweight motors with high torque. If you compare continuous torque to motor weight ratio, Dynamixel H54 is the best.

  • @kipkerluke2508
    @kipkerluke25084 жыл бұрын

    Do you wish that these motors had a higher gear reduction? 1000 RPM seems high for a robot arm application

  • @user-po1gg7df2h
    @user-po1gg7df2h4 жыл бұрын

    WOW! Can I ask that where can I find this manual?

  • @Darfail
    @Darfail2 жыл бұрын

    Hi everyone, does anyone know what would be the type of motor inside this actuator? Not necessarily the exact model but something similar with similar torque

  • @backpropagated
    @backpropagated4 жыл бұрын

    I have no need for one of these but I really want one now lol

  • @jrohit1110
    @jrohit11103 жыл бұрын

    Hi! Do we have a variant with 100Nm torque capabilities?

  • @mediajosh
    @mediajosh Жыл бұрын

    Any idea on whether MyActuator is still supporting these motors? They seem to have gone offline and aren't responding to support messages. Using this exact same setup and code, can't get any communication with the motors, even with the debug software.

  • @devanshusharma1879
    @devanshusharma187910 ай бұрын

    "Great video! I'm curious about the actuator's flexibility. Can you also adjust the stiffness and drag values on this actuator, similar to what's possible with the Mini Cheetah clone actuator?"

  • @johnstifter
    @johnstifter4 жыл бұрын

    Would a breakthrough in actuators accelerate the widespread use of robots?

  • @MrLebhouse
    @MrLebhouse3 жыл бұрын

    Do these motors have radial/axial/bending moment rating?\

  • @shubhamagrawal7812
    @shubhamagrawal78124 жыл бұрын

    Please give link to the manual of the motors.

  • @nameaboveallnames1267
    @nameaboveallnames12673 жыл бұрын

    Where can you get drawings for these actuators?

  • @Dave-nz5jf
    @Dave-nz5jf Жыл бұрын

    So if you can control the speed of the actuator you could probably slow it down before it stopped to reduce backlash.

  • @sprinkhole58
    @sprinkhole584 жыл бұрын

    Fine, but can you help me find a decent motivator? My R2 unit has a bad one.

  • @andreyzolotoev
    @andreyzolotoev4 жыл бұрын

    Пора открывать производство таких приводов! В будущем робот без таких будет считаться стим панком! Танец в конце- топ!

  • @Skyentific

    @Skyentific

    4 жыл бұрын

    Спасибо. Я думаю что скоро такие актуаторы начнут дешеветь.

  • @andreyzolotoev

    @andreyzolotoev

    4 жыл бұрын

    @@Skyentific по ходу сам начну делать

  • @andreyzolotoev

    @andreyzolotoev

    4 жыл бұрын

    @@Skyentific если покажешь нутрянку

  • @hsabdi6968
    @hsabdi69683 жыл бұрын

    Sir, i want to make "arm robot 6axis" use this type of motor...need your help..what type model recomended for j1 j2 j3 j4 j5 j6 ? Thanks sir

  • @agorbot4523
    @agorbot45233 жыл бұрын

    I dont know if you have it or not, but you should make a page with projects etc...and a Discord channel. Good luck!

  • @lubeckable
    @lubeckable4 жыл бұрын

    can you recommend any affordable robot actuator?

  • @derrickbabb1125
    @derrickbabb11254 жыл бұрын

    Awesome

  • @Casedify
    @Casedify3 жыл бұрын

    Is there a cheaper replacement with less torque?

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