Selecting the right stepper motor - Torque test of Nema17 and geared Nema17
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- Опубликовано: 19 май 2018
- In this episode we talk about how to convert the torque specifications in Newtonmeter to something more graspable, like kg/m, or lb/inch. We look at the datasheet of a Nema17, and field-test our conversion with different weights. A 27:1 metal-geared Nema17 will also be put to the test, lifting 2.5kg.
Schematics, code and graphics can be found here: github.com/Labstream/episode_...
I am quite new to producing videos, so I am super thankful for tips, comments and suggestions on how to improve!
(P.S.: I noticed the irritating focus-behavior too late, next time I will set it to manual focus)
-- My patreon page
/ labstream
--- Hardware used
- Arduino Nano
- BL-TB6600-V1.2
- Sainsmart Joystick
- KERT stabilized power supply (1-30V, 4A)
- Nema17 stepper motor, plus it's 27:1 geared version
--- Music
- Intro: "Five Armies" - Kevin MacLeod (incompetech.com), Licensed under Creative Commons: By Attribution 3.0 License, creativecommons.org/licenses/b...
- Outro: "Learn to fly (instrumental)" - Josh Woodward, Licensed under Creative Commons 4.0 Attribution License, creativecommons.org/licenses/... 
Наука
“The US is slowly moving towards de metric system. Inch by inch” 😂
Genius
😂😂😂😂😂
Genius
Remember the blunder where it cost a plane to crash because of the metric system? Probably not. Those who don't read history are bound to repeat it.
I'm in the US and can't wait. Love America, but the imperial system is just a hassle. It's time for us to convert.
6:19 will forever stay in my heart.
I read the comment before and thought I was ready! Almost dropped my burger.Still laughing.
😂
Great presentation, including the final fuck up, which added a nice touch to the video. Keep it up!
I actually knew it was gonna happen, even before you put the weights, just by looking at the clamp, and I was thinking "what is this guy thinking, it was obvious it wasn't gonna hold the weight".. But that was a great demo. At least no foot was harmed.
Was searching this. Got this and understood clearly. Appreciate the Great work. Thanks a ton.
Thanks, you make me laugh too much in a moment that i not spectate. Nice video. Thanks for share.
Really great vid to demonstrate calculated concepts practically!
Haha, great video! And actually the first useful one that I've found on the topic, thanks!
Loved the video!
But yea, the autofocus was going crazy. I dont know how to fix that but i would love you to do more on motor reviews, part reviews and how to for diy projects! You earned another sub!
Awesome video! It would be interesting if u make some tests to analyse the Torque x RPM curve too
Thanks for the info. Great video. Loved your creativity + commentary 😂🤣😂
Bravo. Amazing explanation. Great for us beginners.
Great video and information. Thank you.
That was awesome man! Made me laugh so hard! And thanks for the info!
😂 I f*n knew something was going to go! Was surprised at the motor power, well done, but my instincts told me something was guna happen. Funny one lads 😂
Wow! That was a ... nice(!?) video? You gotta have a look at your autofocus - use a fixed focus instead. Greetings from Germany - you just got a new subscription
Lol, it was at this moment, that he realized, he fucked up.
This was great! Coming from a fellow beer fan lol. Earned yourself a sub!
Thank you for this presentation.
Sustain the great job and generating the crowd!
Great video...informative
6:18 sehr schön! xD
Und direkt mal der Beweis, dass da einiges an Gewicht dran hängt.
Und super Video!!
Thank u for better practical explanation.
Nice work, thanks.
Nice Presentation
Nice video. I'm wondering how bad the backlash of the stepper with the gearbox is? This would drastically influence for example the precision of a robotic joint. Were you able to feel any backlash or did you measure it?
Thanks a lot for this video ! its very helpful my friend i understand now
Thanks for the best video every thing clear in 5 min
Understand thanks again
Sehr gut, vielen Dank!!
thank you for the video
Hi Sir, I was planning to build a DIY 3DOF full motion for my flight simulator, the weight payload is about 150-200kls. Would you suggest what type of gear motor that fit my plan? Your comments are really much appreciated. Thanks in advance :)
Thank you. Really good vedio ⚘
That camera focus is wild
I'm looking for peak torque from start, which steppers don't do, but servos will. Do you have any suggestions or places where I might find one making at least 4500rpm and at least 1lb-ft of torque? Any higher numbers of either one are preferred, but that is the absolute lowest I can allow. Please let me know if you can.
Thanks so much!
good explanation...
Danke. where did you buy the 27:1 gearbox?
How strong would be a nema 23 56mm with 10:1 gearbox? Im wondering if its strong enough for my project
Sir please reply me, I'm making a college project, CNC EDM , a screw have to rotate very small rpm , and it's lifting a weight 15+ kg which is attached with the nut , which type stepper motor is preferable in low budget...
Good information
i am building a linear slider with the help of Hybrid NEMA 17 will it be possible that it can pull 5 kg weight with the help of
lead screw on linear slider????
please guide me.
Interesting experiment. However It would be also useful to measure the current draw by the motor to better assess the ability to lift within the rated current.
hi i need help , i have designed a door n weight is aprox 4Kg and i have installed 12.5kg stepper motor n its unable to open or close ????
Appreciate your video, I am making a crane using a stepper motor. It works up and down perfectly. But I cannot pause in a position in between with A4988 driver, will this driver will do the task
thanks for the testing video I need one help as i am unclear . I want to rotate the mechanical knob which need 5nm torque to rotate. which stepper motor i can use ? should i select the motor in accordance with the holding torque specification or something else. Kindly reply
Exactly experiment ❤
thank you!
great vidio
Thank you for this good video!!!
I have a motor with a holding torque of 4Nm here, according to your calculations this should lift 40kg at 1cm, correct?
Thank you
I would like to adjust the engine revs using various buttons, does anyone know if this is feasible?
thanks bro
Dude I almost choked on sushi , Twice , thanks to your dry ass humor. Well done.
I'm here because I'm asking myself a question, is it really necessary to have nema 23 for a CNC?
taking into account that they only have to move an engine on axles made of aluminum ...
can nema 17 have enough strength to mill brass, copper, aluminum etc in complete tranquility?
At the end, everything goes down...lol
But very informative video...thanks.
Do you even manual focus Bro? Seriously though, great concept.
jajaja I think everybody lol at 6:19 thanks for the vid
my stepper not lifting load having 10 cm link but roatate load if i place it on stepper shaft ? so why stepper is doing this
06:16 😉 this is why proper arrangement is necessary.
How did u make the lever that attaches to the shaft of the motor
so i need to lift 10cm 4kg , which means that the arm will be 5 cm long ... lol so nema 17 is not the good choice .. wth motor i need ? could you help ? If i calculated it right i need 1.96 Nm . so nema 23 which has 2.2 Nm should be ok ???
So, if he had placed the weights at 1cm from the shaft; will the motor have no problem lifting the weight?
Hi, does anyone know where that datasheet he referenced is located?
how much power does a typical nema 17 stepper motor require?
good explanation of motor torque capacity. just can u make a video for holding torque once we switch of the power supply. NEMA 17 n NEMA 23
I use a NEMA17 with 0,59Nm and when I mount a simple RC wheel the motor slips. No force to move my robot car :(
I use the A4988 Driver. In so many projects the steppers looks so strong.
Thanks but where do I get that black arm?
how can I get that lever you used?
What stepper motor under 10$ will be good for robotic arm
MAXIMUM WEIGHT CAN IT LIFT
PLEASE SUJEST ME TO USE A BEST STEPPER MOTAR FOR LIFT 30KG OF LOAD
Could the stepper motor be "inversed" into an input device ? Meaning you turn the motor manually and read the position (angle) from a computer program. (This could be useful to build an "input puppet", posed manually. Then the pose will be duplicated into a larger/stronger device).
For anyone reading this question 2 years later, you can just use potentiometers in the input joints to get analog readouts, run-through arduino and get your angle.
Hi! Were they tested at full step?
Can you please answer this,
If the stepper motor had lifted load to almost 90 deg and we lose the power will the motor rotates back to its 0 deg. position due to the gravity or it holds its position upon power loss.
I want to use a non geared stepper motor in one of my project and i want a fail safe design which returns to its initial position upon power loss.
Thanks in advance
Hi Abdul, sadly, if the power is cut, the weight will pull down the lever again. You would need an additional mechanism to keep it in the 90 deg position on power-loss.
What camera is being used for this test? The constant refocus makes me think it may be a Surface webcam.
This was a Nikon D5000, I noticed too late that the autofocus is horrible. All videos after that I took with fixed focus. I am still searching for a good (and cheap) DSLR with better autofocus..
is this capable of controlling this using arduino or raspberry pi microcontroller
you use votage 24 V? Please sent me to know
Interesting demonstration brother...
Intresting video, I'm doing some research for a project and could use some help. I wanna use a stepper but the only way to get power to it would be a battery pack charge by solar or something like that. The torque of the 17 looks good but I might go for the 23 just to be sure... But I want to know... What kind of battery pack would I need to move 4 linear meters on full torque (worst case).
Hi Bjorn, that sounds interesting! Could you write an email to me, I can look it up tomorrow?
Hey can u help me out to get one rotation per minute with very smooth and high torque rotation on nema 23 stepper !!! It will really help me out ! Thanks in advance 😊
...love the meme :) nice video...
Looking into stepper motors to make my cars tailgate automatic lift/close, still deciding between Nema17/23...
Would like to see how much torque can stepper produce over the shaft?
The higher the gear ratio the higher the torque? If I switch from a nema17 with a 10:1 to a 20:1 does the torque double? And if I choose a 100:1, is it 10 times higher?
Theoretically yes at the slowest speed. But due to the higher rpm necessary for rotating at the same speed at 100:1 reduction, and the drop in torque for stepper motors as you go higher rpm, it will probably not be so linear for many applications. You also need to check the maximum torque the gears itself can sustain before breaking.
I would like you to give me the code to control the motor with the joystick
Which brand did you test?
hello, could you tell me were to find the programming code for the stepp motor?
Hi, the arduino-code is here: github.com/Labstream/episode_torque/blob/master/tb6600_joystick.ino. I have been using a joystick to control the stepper, but of course you can customize it to your needs.
Hi there, does the distance of the string from the shaft make a difference to how much the motor can lift? I am interested in using a servo motor with a torque rating of 25 kg-cm to lift a mass of 450g, 20cm away. Could this work with a string or not?
Thanks.
As long as it hangs parallel to gravity it does not make a difference, the force 'pulling' on the shaft will be the Same regardless of the length. The motor you proposed seems fit for your application! May I ask what you plan on building?
@@deSpeyer Hi there, I'm trying to make a device to pull someone's fingers open as they cannot do this themselves. Using the servo as a sort of precise winch I guess.
Would it work horizontally?
@@kyle_vr yes, this should work. Sounds like a very cool and important project! If I can be of any further help let me know (I am the guy from labstream, accidentally posted with my private account)
@@deSpeyer Ok, thanks!
Hi could you share the arduino program?
I want to use two stepper motors to power a wheelchair for a friend. He weights 90kg. Do you think the shaft of these motors can handle that amount of weight? Also I'm thinking of going for a Nema 34 just to be safe with the min. torque required for the job.
Most probably not. I'd suggest to put the axle with the weels in bearings which can hold the weight and drive this axle using a belt or a chain
The moment he fuck#d up was soo funny, good video mate, thank you mate
You made me laughing..while watching serious😁😁
what is the 0.36 Nm?
...slowly moving towards the metric system... inch by inch :-)
So what could I lift with a ratio of 50:1? Building an auger.
I found a 50:1 Nema17 online, it's datasheet states 15Nm -> 1500 N-cm -> nearly 153 kg-cm.
Thank you that is good starting point. That is more than I thought!
How do you distinguish between geared and non geared version of this motor just by looking at it?
The gears have their own housing (gearbox), which is usually placed between the motor itself and the output shaft. These housings add additional height and usually look different than the stepper-housing itself. If you look in 0:30 at the lower left, you can see two stepper motors. The left-most is the only geared version in this video.
@@labstream4122 oh wow got it! Thank you so much!!! 👍👍👍
Awesome video, THAT MOMENT THO!!!! BUAHAHAHAHAAAAA
It would be very good to know how much voltage was set in you power supply and how much current was set in your BL-TB6600-V1.2 driver?
I do realize that, and I am already working on the next video, have also built a new and better contraption to test different motors, and will definitely use your feedback! If you can think of anything else that would be interesting please share and I will try my best to consider that in the next video!
@@deSpeyer Thank you for your answer, I am really looking forward to watch the video.
BRO! Do you even level the audio?
bro plzz help
i have a 8 pin stepper motor
i have connected it to l298n h bridge
with arduino uno
the motor is rotating well accoring to the program but it is not taking any load like suddenly when we gove load it starts vibrating
i belive u know al abut this and clarify me
thanks
Maybe if you'd sat a bit closer to the camera, the autofocus and the sound (low volume) would have both improved.
Hi, Thanks for your input! I am currently working on a better setup, so the next videos will be better :)
@@labstream4122 👍🏼. I'm amazed you're still replying to comments on a two year old video. 😂
Unexpected climax
The disclaimer at the end: No motors or microcontrollers has been harmed during taking of this movie... You made me laugh a lot.
I am also curious what voltage did you supply to the driver for achieving this, is it 12v, 24v, 36 or something else?
Unanswered questions (1): Was the slippage due to mechanical failure of the motor shaft to lever connection? (2) Was the slippage due to the motor being unable to lift (e.g. failed to maintain lift)? (3) Was the motor able to "hold" the weight? (4) What demonstrates the failure of the motor? (5) how to calculate which motor to choose for which weight.