The Best Robotics Power House Just Became Affordable!
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- Опубліковано 4 сер 2024
- I think ODrive will open the doors to fast, tough and cheap hobby robotics!
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a decent quality servo motor will be at the same price, motor + drive, and industrial drives have many pro features
I have been trying to avoid buying the Odrive controller and "servo" kit for about a week now. Then I saw this video. Must Have! Thank you! This was a really helpful video!!
So hyped for this robotic arm! Not sure what I'm gonna do with it tho I just want one XD
OMG, please do a torque test video, I want to see how much power you can get out of these. The speed is crazy.
Funny to find your two year old comment here...I am currently waiting for my Odrive, I will keep my progress posted in the forum!
Very cool, however this isn't at all affordable. Controller is like $150, and each motor is at least $80. That's a price of a serious servo+controller almost. The advantage is the size, sure, but we can't call this affordable in any way.
This is exactly what I wanted to do but didn't have the time. Thanks for showing me this. I subd and look forward to your progress.
Looking forward to the 6-axis robot you've got brewing! Thanks for the awesome videos and designs!
Hell yes, Odrive is awsome
pretty cool!
what is the model of the motor?
Nice!
Super!
I can help with python, lots of tutorials on the net too. good work.!
This is awesome! Is the driver for two servos?
Yes, it can manage two motors.
hi could u please do a tut about this? or attach the files and cmds even i want to do exactly what ur demo is doing but a confused. ty
I cant seem to find the demo by Marco Reps that you are referring to at the end of your video. Where is it?
Ide love to see a 3d printed clutch. Just to see how it would fail
Hello. Very interesting setting. Do you have the arduino sketch code for this set up? Thanks a lot
How did you change the play station remote controller to control the motor?
Where you can buy that encoder ?
Cheers.
Is the min voltage 24V?
now i understand how michael reeves was able to build the surgery robot
Affordable. 3 stepper motors ... 15 euros + drivers = 25 euros.
3 BLDC's + odrive + encoders = 3x 99euro + 119 euro + 3x 39 euro = 540 euros ...
I am not saying the features aren't (a lot) better. Not 20x better though.
Like the idea of Odrive but the hardware requirements of having two separate pieces (motor/encoder) with wires for each of them makes it less compact, less clean and more complicated than an all in one stepper motor (cheaper too). I think what this project should do for wide audience and success is produce brushless motors with integrated encoder (and reduced number of wires to the ESC controller)
PLS TEST THE Repeatability too for the stepper mode it would be garbage if it can't step the same position twice or often and don't forget to measure the temperature at longer duty time ... otherwise it would be not suitable for CNC or 3D printed and especially for a 9 axe's robot arm it would be a toy that can't be taken serious
I believe that the enclosure was an excellent idea, specially for those that have an existing setup that have stepper motors and are considering to turn around and retrofit to use the O-drive... Also, I don't know why they have not make this "Mach3 & 4" compatible.. since every single hobby CNC use Mach.." beside that the price isn't that affordable! Unless that have actually changed since the last time I saw it. Finally perhaps the honest reality is that compared to any of the mayor servo manufacturers its a much more affordable option... hope they consider to make this more user friendly for those one's of us that are not C++ or code Geeks... thus the advantage of something that have the potential to be really big.. "Mac BIG"
So if your robot falls over, he's going to spazz and explode. Nice.
Probably not, because the PID are not properly adjusted, unless like him, that wanted that hyper sensibility.
Ok, so what can you build with this?
What's the encoder you're using?
I want one! nah i wan't a lot of them ^^
I have a feeling that since this is "new technology" its actually going to be 10 times more expensive than the Chinese clones of the electronics/motor of a stepper motor that is used by hobbyists 99% of the time.
No doubt, but the clones will probably also crap out long before they reach the claimed power output.
you can use a VESC i guess
Is the schematic available for the controller board or is it just the software that is open source?
both hardware and software are open source, you can check it out on its page...
Ty
I wouldn't touch this hardware with a stick. The power stage is completely badly designed. Just like any bog standard ESC controller.
One of the only questions i have is how you got the ps4 controlloer to work. Ive been having no luck trying to connect one to anything other than my ps4.
there are guides online, you just need the right receiver and the right instructions, it is VERY finicky though
Ill have to keep looking. Since i have a 2nd controller id like tp use for other projects.
$250 for their motor+sensor+control board. You could get a clear path motor for $7 more and you'd get high holding torque on it.
The magic part is that control board, and it is for 2 motors. The rest you can set up the way it suits the project.
You need to tune it a little better :p
Yeah, way too much gain, probably integral gain.
why not use nema 17 or nema 23
or other nema motors they are cheap and really good used in pretty much all cnc machines
Could this setup be used for a CNC?
Yeah! It would be stupid fast too!
Really depends on the holding torque specs....
Which increases when you add a gear box, and still have huge speed.
And with the right Worm gear, the holding torque will be HUGE.
en.wikipedia.org/wiki/Worm_drive
It's almost as if you're trying to sell this system. In the stepper vs BLDC comparison, you only talked about the pros of BLDC and didn't mention stuff like holding torque, etc....
thanks for this, i am already looking into this tech. and i greatly admire all you've been doing with gears that i've been watching now for over a year.
but,
with all the tech that you have built and designed, i'm sure it wasn't out of your expertise to build a simple hold-down mount for your motor!!! at the end of the video, where you were using the hand-controller and trying to hold down the motor @ the same time, was .... er ... well one of the things it was, was confusing. had you had both hands free to use the controller, you may have had more mental time to explain what you were doing with the controller. that being said, great job - i could not have done nearly that well - so i'm an armchair critic.
keep up your great work & i'm looking forward to more on this tech!!!!
Russ from Coral Springs, Florida, USA
Hi!
Huh, neat.
affordable here is insanely pricey for me xD
But brushless motors have bad holding torque. Thats where stepper motors come in
That isn’t important for my application, my gearsets are so inefficient that they can’t be backdriven! Haha
Atlantic Film
Brusless motors do have good holding torque. Its just that the steps are too big and they are not optimized for that. On the other hand brusless motors are super efficient and have a ridiculous power density so you could litterally add a gear reduction to the motor in the same space and still have more power output.
Gear Down For What?
Hey have you tried using a bolt and a wheel as a worm gear? Its relatively easy to make. Like how youd make a hobbed bold for a extruder with an M5 tap. Its metal and its a worm gear, i dont think it will be much be i doubt it will be worse than yours.
But the feedback loop WILL adjust for that, and will use the excelent power you ger from the brushless motors. This is a great device.
And yes, REAL CNC machines doesn't use stepper motors, they uses servo motors, like these odrive, feed back sensor and brushless motor.
Atlantic Film steppers really don't have much holding torque either, years ago I had a setup like this but with brushed motors and encoders for a F.I.R.S.T. competition. Tuning PID loops ends up being the solution for holding torque imo
Hey
dont' put music over your videos
So good, I've always been so puzzled as to why this kind of thing doesn't exist. After checking out the ODrive link I'm even more encouraged. This video is amazing ua-cam.com/video/WT4E5nb3KtY/v-deo.html.
Would an inrunner make more sense? I know it would have less torque and be maybe a little more expensive, but because of the lower rotor momentum it might be more responsive?
Your missing a gearbox
Perhaps I should send a few things sooner. I should get in touch with a few people I know, it might be a good idea for me to send you some stuff for next video, some of the motors I have would be good to test if that thing can do higher voltages (12, 24, 36, 48, etc.). Did you give me your address? Email me again, I'll send you a few things this week to see if you can use some high-end motors.
I dont have your email address, I don't recall speaking before?
Gear Down For What? I was going to send you a bunch of heavily geared motors, I sent you pictures of a bunch of the motors I have just laying around.
It was back when you were doing the really high great ratio videos, I have brushed DC motors with crazy high gear ratios, 21:1, 40.5:1, 256:1, 1500:1, 3500:1, et cetera et cetera. Tiny motors that typically run idk 20,000 rpm but geared so heavily to turn that speed into torque and DAMN do they work well!
Oh! I remember now lol
Gear Down For What? Yeah, A.D.D. Lmfao, don't mind me. 😃 I really like your videos, I'd be a Patreon supporter if I wasn't so damn terrible with my money in the past, stupid young me. I'll be honest though, that printed gear video kinda pissed me off haha make a 4 or 5 axis CNC with those you're messing around with and then make a video, I'm getting to about the same point but trying to use a specific firmware because it's FOSS. That ODrive would be dope if you could use it in 6 or 8 or more channels....I am a CNC Machinist and I run a Swiss Type CNC Lathe and I want to build one SO badly! They are crazy precise and unbelievably repeatable. I may take one of these Open-Source protects to an engineer and have him take it to the level I want it and "update" the project to what I think it should be 😈 good idea or no?
That encoder error could be a fatal flaw in a robot design.
There was no error. I tuned the PID to do that intentionally.
Oh. Ok.
I was considering commenting that you need to increase the I multiplier, but I see you are already aware of that. Kudos! Also, if you haven't already, check out a software called V-REP. It is awesome for developing robotic applications.
I'm buy house became a robot all
"Affordable" = $119 per odrive (2 motors max) + $40 (2x decent brushless motor) + $80 (2x encoder) = $120 per motor. Affordable is not what I'd call this. For a six axis robot it'd be $720 for just the motors and drivers.
Look up the RMD X8. This is the "competition", if you can call it that. It starts at around $450USD per motor, and is nowhere near what high-end industrial servos at this power rating go for. Look up some 1kW industrial servo motors for scale, $1000 will not get you very far, again just for one motor.
When people say it's affordable, they don't mean you can go impulse-buy one to play around with like an Arduino, they mean for the specs it provides. You will not find a cheaper solution to provide that kind of power and precision.
That's incorrect servo Motors are actually geared inside
That’s the exception, not the rule
Third!
you spelled "First" wrong!
to much background music to bother watching...
But not apparently for commenting.
😂😂😂😂😂😂😂
"Super expensive, super high end motors"
What servo motors are you looking at? You can buy them for under $5. By the time you add the encoder and gear reduction you know what you've made? A servo motor! Except it's probably just more expensive at that point than buying a premade servo with similar torque. And that's not mentioning the violent vibrations...
He's referring to industrial servomotors, not RC servos. Big difference!
In reality this ESC called here "power house" sucks.... and expensive.
Michael
Id still just rather have a high res optical encoder with the AB outputs
It is Current, not Amperage. There are nothing called Amperage. It is current.
Nice video though. And a COOL device!
Allowed?
It is the proper name of current which is measured in Ampere, as voltage is measured in Volts. Not my fault there are no amparage when you measure current in Ampere. So do a simpel search and stop using Gtfo.
en.wikipedia.org/wiki/Ampere
en.wikipedia.org/wiki/Voltage
en.wikipedia.org/wiki/Electric_potential
en.wikipedia.org/wiki/Electric_current