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 TH-cam brings the world together.
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.
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.
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!!!
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!
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
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.
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?
@@Skyentific Yes! I'd love to see more introductory stuff from you, or at least a more in depth explanation for your projects. I love your work and would love to understand more of it!
@@eglintonflats That's one of the issues, there are so many books on the subject, where does one start and how do they progress and in which direction?
500 dollars for every actuator!!!??? Very expensive, also torgue without speed is not an indication, you can have big gears with small motor and create huge torgue but small speed ... speed should be mentioned in the testings
One of the links above has a tab for specs, and it says 250 rpm. The other (the PRO version) doesn't have a speed. I agree, I'd really want to know both speed & torque before spending this much. Having said that, 20-40 Nm is _a lot_ of torque for something so small.
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
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
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.
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.
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!
Здравствуйте. Подскажите пожалуйста сопротивление у обмоток этих моторов. Нужно попробовать их использовать с другими CAN контроллерами. Спасибо. Надеюсь найдете время померить. Хорошего дня!
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!
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.
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!
I want to make a correction here " high voltage doesn't mean low current". In Robotics torque is more of an important factor than RPM. So 48V means it's designed to carry more current. I am expecting that 48V & 24A can generate around 24Nm effectively by using a 6:1 Gear ratio for your first motor.
Hi, I have a trouble with the CAN BUS conection; the Arduino code works but the motor don´t move; I probe the same code with other motor and works good. I think that the firmware is the trouble. So too probe it with the UART drive and works good, please HELP ME!!
@@clementd4984 I found the problem. The motor driver malfunction and it was replacement with other new. You have disoldering the internal wiring and put in the new driver with other soldering. Is a fabrication fail and GYEMS no gave me a guarantie. Very bad.
@@perezmiguel3877 Well, this sounds bad... 😐 Can you share your code fore the CAN communication? I tried several things (including thencode in this video) with a MCP2515 module and with a CAN shield from Keyestudio, and it doesn't work, but I'm not 100% sure that my code is correct. 🙏
@E K the code is the same used in this video and works very well, review if you made correctly the CAN bus line and put the correct and put the correct dial code switch for the motor address
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.
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 ?
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!
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.
This seems great and all. But I don't think that you can really build a "cheap" robot arm by having a 500$ actuator on each axis. At this point you are pretty much making a homemade industrial arm. Both in cost and capabilities.
you cannot possibly compare the cost of this to an industrial arm... Go take a look at Kuku's cheapest industrial arm, im guessing somewhere around the $50k mark.
@@scotram well yeah but its safe to safe that he wont reach kuka standards in terms of repeatability and precision. And when you factor in the used robot market... But anyways. The point still remains. The robot will probably end up costing more than 5k. Cheaper than the state of the art can still be expensive.
"Great video! I'm curious about the actuator's flexibility. Can you also adjust the stiffness and drag values on this actuator, similar to what's possible with the Mini Cheetah clone actuator?"
Вы используете алюминиевые профили которые сильно гнутся - это тоже снижает усилие- torque Я предсказывал что Вы перейдёте на покупные актуаторы ещё пол года назад)
Hello. Can you please described me the torque mode? Do i understand correctly, that if i want to rotate a motor with constant speed, and constant torque, than my input via can is only :"direction, speed, desired torque"? Or desired torque is set only via config limiting current? Can i during motor operation change all these parameters? Thank you very much
Thank you for this video. It helps me a lot. Please could you explain how information from the motor can be read on the Mac. Which program is needed for that? It is shown on the video at 7 min 28 sec.
Great content, I find your videos very informative, however could you look at the feasibility of using clearpath servo motors for robotic arm projects?
Hi, Could you explain how to adjust PID values with that? For reference, I have a plan to develop SCARA arm (H: 68cm, L1: 30cm, L2:30cm) using use RMD X8 Pro.
Most probably it would not work. The torque depends on magnetic flux. If you put more turns with thin wires, they will cary the same flux as thick wire with less turns. So it will change KV of the motor but not the torque.
I see lot of Servo motors (like ClearPath Servo) which gives good torque, speed and precision. And it is around 35$. But this actuators are 500$. So, im wondering how do these actuators make difference with those servos. This is just a question and im new to robotics. Please assist me so that I can design my robot - The Best.
Thank you. The cheap servos usually not powerful enough for the robot arm (with at least 1kg payload and human like reach). Also this particular servos (ClearPath) are very heavy and not very powerful. That is why in robotics they usually use harmonic drive actuators or MIT mini cheetah like actuators. Harmonic drive actuators usually cost many thousands. Thus standard robot arm with 6 axis would cost at least 10-20 thousands.
Also, Im wondering like, servos contains dc motor, gear reduction system and feedback system. Actuators that i saw in your video has same components. Then how can the weights of both vary this much? Servos - 11kg and Actuator < 1 kg? 😅😅😅😅
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?
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.
@@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
Thank you for video. I tested DRC10 drivers (probably same driver as yours). Did you test 0xA7 and 0xA8 commands? These are not working on my device. It returns error. Did you check torque at slow fixed speed? (0xA2 command, for example 2 rpm). Incredibly low torque on my devices. Completely useless. It can't even rotate itself. But for high rpms (e.g. 100 rpm) it produces some torque. Did you check temperature? Constant, -50 celcius on my devices. I wonder if my devices fake. :(
DRC10 is completely different. They have even different hardware. On my driver there is no A7 and there is no A8 command. Only A1, A2, A3, A4, A5 and A6. I checked the torque only in different position modes and in torque mode. Both works fine. The temperature readings gives very reasonable result, starting at 28-30 Celsius and rising slowly, when I use motor a lot. Did you buy your driver from Gyems company? I saw the similar drivers from other Chinese company. And those drivers had absolutely different control protocol.
@Skyentific Thank you. It was really useful. My drivers exactly the same as Gyems. I have precisely compared from high resolution photos. It is either an original or a perfect copy. But I don't know where it was bought. I will learn this from the purchasing department tomorrow. Thanks again.
Best way to support my channel is to like, to comment, to share the video and to subscribe.
the Best way to support your channel is to make companies with you !!!
@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.
Здравствуйте! У меня почему то на прямую через их драйвер не конектется, пишет
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 TH-cam brings the world together.
It has been super strange to see something I designed copied by so many Chinese vendors, and then reviewed by people on the internet.
You might as well release the CAD now so at least the clones are of better quality ; )
Miss your periodic videos. Hope Life is good at Boston D.
Could you give me a link so i can buy from you?
Nice work tends to end up in some fun places.
Ben Katz if this is a great product, why not? :)
The links are down, just wanted you to notify :)
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.
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.
This channel is heaven! thank you so much for your testing. THIS IS GREAT!
Hi! Where can I find the motor control protocol documentation that is used in this video?
I am amazed! I though something like this would be far more difficult. Thank you for opening my eyes to new possibilities.
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.
Professional content and very clear and light way to explain
your video is really helpful for me (i'm a programmer in s.korea). thank you so much.
You're a cool dude, genuinely. I dig it. Definite like and subscribe. Keep going.
Thank you for making these videos.
Good to find someone who knows so much. Liked and subscribed.
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!!!
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!
Thank`s you to share your work with the best attitude!!!
As usual, awesome content! Thank you for sharing.
I really appreciate these videos, I wish you great success.
"It's almost like on those fancy TH-cam channels", heheh this is a fancy TH-cam channel! working on frickin' robot arms
Thanks!
at those prices for each of those it better be.
These are awesome! Great video
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
Thanks for the nice video and consistent test method.
Just subscribed. Thanks for the great information and resources!
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.
thank you for such video
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?
thats's great! can you feel cogging torque? how 'transparent' is it? meaning how much torque do you need to move backwards when is off?
Great videos thank you so much, this helped me so much.
Can u please do a video on robot kinematics
I should! Many people asked me about this. I will look into it.
@@Skyentific Yes! I'd love to see more introductory stuff from you, or at least a more in depth explanation for your projects. I love your work and would love to understand more of it!
If you can read, then there are numerous books on the subject of robotics kinematics but it requires an effort
@@eglintonflats They don't have a sexy accent though.
@@eglintonflats That's one of the issues, there are so many books on the subject, where does one start and how do they progress and in which direction?
Thank you for sharing! Very good info.
Thank you for your comment!
500 dollars for every actuator!!!???
Very expensive, also torgue without speed is not an indication, you can have big gears with small motor and create huge torgue but small speed ... speed should be mentioned in the testings
total sold 0 items, product reviews 0
@@kokotmkokot4926 well this video was a review ;)
One of the links above has a tab for specs, and it says 250 rpm. The other (the PRO version) doesn't have a speed. I agree, I'd really want to know both speed & torque before spending this much. Having said that, 20-40 Nm is _a lot_ of torque for something so small.
@@AlecMuller he linked a website in the video description. It has a table of specs if you scroll about halfway down.
Thanks for the good review , very useful
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
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
Пора открывать производство таких приводов! В будущем робот без таких будет считаться стим панком! Танец в конце- топ!
Спасибо. Я думаю что скоро такие актуаторы начнут дешеветь.
@@Skyentific по ходу сам начну делать
@@Skyentific если покажешь нутрянку
This is so helpful for my 6 axis 3d printer
So if you can control the speed of the actuator you could probably slow it down before it stopped to reduce backlash.
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.
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.
Thx for your videos!
Очень познавательное видео, большое спасибо)
Большое спасибо за добрый комментарий!
Hi, it's a really nice actuator, thank's for share :D
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!
Good video and explanation, you rock's, thx!
Thank you a lot!
@@Skyentific Than's for share your work with the best attitude!!!
Excellent video
nice video really like it,,, is it necessarily to use termination resistor ??!! and why??
Hey, great review! Do you still have the documentation of this motor by any chance? It would be really useful. Thanks
66.7% Positive feedback
for an aliexpress store only open since Oct 2019 seems kinda poor?
Thanks!
Very interesting and useful.
Здравствуйте. Подскажите пожалуйста сопротивление у обмоток этих моторов. Нужно попробовать их использовать с другими CAN контроллерами. Спасибо. Надеюсь найдете время померить. Хорошего дня!
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!
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.
Nice video !
Thank you!
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!
I want to make a correction here " high voltage doesn't mean low current". In Robotics torque is more of an important factor than RPM. So 48V means it's designed to carry more current. I am expecting that 48V & 24A can generate around 24Nm effectively by using a 6:1 Gear ratio for your first motor.
The size of the motor limits the maximum power
Hi, I have a trouble with the CAN BUS conection; the Arduino code works but the motor don´t move; I probe the same code with other motor and works good. I think that the firmware is the trouble. So too probe it with the UART drive and works good, please HELP ME!!
Have you found a solution? I have the same problem...
@@clementd4984 I found the problem. The motor driver malfunction and it was replacement with other new. You have disoldering the internal wiring and put in the new driver with other soldering. Is a fabrication fail and GYEMS no gave me a guarantie. Very bad.
@@perezmiguel3877 Well, this sounds bad... 😐
Can you share your code fore the CAN communication? I tried several things (including thencode in this video) with a MCP2515 module and with a CAN shield from Keyestudio, and it doesn't work, but I'm not 100% sure that my code is correct. 🙏
@@perezmiguel3877 And thanks for the response, by the way! 👍
@E K the code is the same used in this video and works very well, review if you made correctly the CAN bus line and put the correct and put the correct dial code switch for the motor address
Excellent video and really both products are just beautifull !! Unfortunately a little expensive for me as a hobbyist...
Do you wish that these motors had a higher gear reduction? 1000 RPM seems high for a robot arm application
Thank you for sharing！Very useful
very good lesson. It is easy to undestand. Thank you
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.
Ваш английский становится лучше радует, спасибо за видео)))
Спасибо! Приятно слышать, а то все только и критикуют мой английский! :)
If you pay over $500 for an actuator, you should also look at the Robotis Dynamixel XM and Pro series.
Where can you get drawings for these actuators?
@14:44, let’s increase the torque with the pressure of My Magic hand.
I have the steadyWin actuator, i suppose you have to calibrate motor before it will move at all :-).
The red light comes up , but no movement
Skyentific what will be if you increase torque it will corrupt actuator? for example if i want use actuator for milling wood plate i should use some reduction gear ?
have you ever tested RMD X6 1:8?
Great review! Could I ask you if you have any idea about the backdrive reistance? With this I means what effort (Nm) is needed to manually drive the output shaft when the actuator is turned off. In my project it is very important that the device can be manually overrriden without adding too much resistance. Thank you in advance!
Great review. I would like to know if this motor has an internal brake that can prevent it from turning when there is no power to the motor. Just like in an industrial robot where the robot arm segments stay in place when the robot is turned off.
great video!!!!... can you please explain a little bit about what is torque control mode and how you used it in this actuator.
Nice video and actuator. Is it possible to review some cobot (collaborative robot) joint actuators like Universal Robots, Han's robotics?
Hi, @Skyentific you recommend other actuator motor, this is out !
Thanks for sharing. Is it typical to include another gear with these actuators? Any harm in doing so?
This seems great and all. But I don't think that you can really build a "cheap" robot arm by having a 500$ actuator on each axis. At this point you are pretty much making a homemade industrial arm. Both in cost and capabilities.
you cannot possibly compare the cost of this to an industrial arm... Go take a look at Kuku's cheapest industrial arm, im guessing somewhere around the $50k mark.
@@scotram well yeah but its safe to safe that he wont reach kuka standards in terms of repeatability and precision. And when you factor in the used robot market...
But anyways. The point still remains. The robot will probably end up costing more than 5k. Cheaper than the state of the art can still be expensive.
@@Mr30friends I agree, when i saw the price of the motors i had some sticker shock.
may I know how to diy the CAN connect cable like you do?
"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?"
Вы используете алюминиевые профили которые сильно гнутся - это тоже снижает усилие- torque
Я предсказывал что Вы перейдёте на покупные актуаторы ещё пол года назад)
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
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.
Great content, I find your videos very informative, however could you look at the feasibility of using clearpath servo motors for robotic arm projects?
Thanks a lot, very interesting!
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?
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.
Can you buy a cheap version of that motor with the low torque and rewind it to make it higher torque yourself?
Most probably it would not work. The torque depends on magnetic flux. If you put more turns with thin wires, they will cary the same flux as thick wire with less turns. So it will change KV of the motor but not the torque.
No open shaft / slipring limits multiturn use.
How did you calculate the backlash of the arm? I can't seem to find it online
your Buy links are broken
I see lot of Servo motors (like ClearPath Servo) which gives good torque, speed and precision. And it is around 35$. But this actuators are 500$. So, im wondering how do these actuators make difference with those servos. This is just a question and im new to robotics. Please assist me so that I can design my robot - The Best.
I will be waiting for the answer. Love your videos. Thanks for making us to know the availability of different components. Keep going...
Thank you. The cheap servos usually not powerful enough for the robot arm (with at least 1kg payload and human like reach). Also this particular servos (ClearPath) are very heavy and not very powerful. That is why in robotics they usually use harmonic drive actuators or MIT mini cheetah like actuators. Harmonic drive actuators usually cost many thousands. Thus standard robot arm with 6 axis would cost at least 10-20 thousands.
Clearpath of the similar torque, cost 700USD, and weight 11kg!!! And this actuator weight less than a kilo.
Thank you soo much for the information. Actually im pretty new to robotics. So I thought servos are cheaper. Thanks for your information.
Also, Im wondering like, servos contains dc motor, gear reduction system and feedback system. Actuators that i saw in your video has same components. Then how can the weights of both vary this much? Servos - 11kg and Actuator < 1 kg? 😅😅😅😅
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?
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.
@@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
Hi! Do we have a variant with 100Nm torque capabilities?
Is there a cheaper replacement with less torque?
Would a breakthrough in actuators accelerate the widespread use of robots?
You didn’t talk about active cooling requirements?
At low power it does not require any active cooling.
I dont know if you have it or not, but you should make a page with projects etc...and a Discord channel.
Good luck!
Do these motors have radial/axial/bending moment rating?\
Thank you for video. I tested DRC10 drivers (probably same driver as yours).
Did you test 0xA7 and 0xA8 commands? These are not working on my device. It returns error.
Did you check torque at slow fixed speed? (0xA2 command, for example 2 rpm). Incredibly low torque on my devices. Completely useless. It can't even rotate itself. But for high rpms (e.g. 100 rpm) it produces some torque.
Did you check temperature? Constant, -50 celcius on my devices.
I wonder if my devices fake. :(
DRC10 is completely different. They have even different hardware.
On my driver there is no A7 and there is no A8 command. Only A1, A2, A3, A4, A5 and A6. I checked the torque only in different position modes and in torque mode. Both works fine. The temperature readings gives very reasonable result, starting at 28-30 Celsius and rising slowly, when I use motor a lot.
Did you buy your driver from Gyems company? I saw the similar drivers from other Chinese company. And those drivers had absolutely different control protocol.
@Skyentific Thank you. It was really useful. My drivers exactly the same as Gyems. I have precisely compared from high resolution photos. It is either an original or a perfect copy. But I don't know where it was bought. I will learn this from the purchasing department tomorrow. Thanks again.
@@Skyentific What is the brand and model of the driver you use? Where did you buy it?
Please give link to the manual of the motors.
I am wondering how shock resistant the gear train is. For legged applications, you might overload the gears momentarily.
Hi, thank you for sharing this video. I just bought one. Could you also share your Ardunio code you used for your demo? Thanks