Virtual Sphere Rolling Joint Robot Arm (DYNAMIXEL + OpenRB-150)
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- เผยแพร่เมื่อ 28 ส.ค. 2022
- I have build very unusual Robotic Arm. Its unique design allows for the organic motions, which are not accessible to other robots. Here the link to the controller used (it's super new!!!):
OpenRB-150: bit.ly/3PJdQDZ
Special thanks to my special Patrons: Benjamin Bacon, 천희 한 and Orleans!
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#DIY #Robotics #robotarm - วิทยาศาสตร์และเทคโนโลยี
In order to finance my TH-cam channel and my projects, I am starting the consultation in robotics. So if you would like to ask me questions about my builds (or about your projects) you can do this through my website ( www.skyentific.com/book-online ). This service is not cheap, because I would like to limit it (with lower prices I would have to do this all day long, and I would not have time for projects/TH-cam). And of course, I cannot guarantee that I will be able to help you during this consultation, but I will do my best.
The inverted movement reminds me of GLADOS. Cool concept, thanks for sharing!
Remember, the cake is a lie!
This is a fantastic way to teach the concept of adding degrees of freedom incrementally to an initially simpler setup.
Watching these videos is definitely a highlight of my day. Always impressive seeing 3D printing used in such a versatile manner
Для увеличения жёсткости стоит добавить продольные рёбра жёсткости.
Spoiler : I watched this whole video, that robot does not roll a joint. Much sad, very disappoint.
Add fingers in the next update
Я даже не сразу врубился, что видео на английском языке)) Русская речь на английском языке))) мне понравилось, спасибо!
One of the chief drawback from mechanical point of view is that at specific angle in 3d coordinate, there will be excessive torque needed for delta movement. Similar to knuckle joint strains at 45°
If it were constrained by an extra armature, it seems it could be used as a constant velocity joint. But again it may be limited by torque loading... However I wonder if that could be worked from the other direction by using a CV-joint design that handles torque well as a robotic armature if it's not constrained like it would be on a vehicle drive line?
@@pauljs75 I liked the counter idea, its an idea worth exploring.
could someone explain this but for dummys? (me)
@@keixsy The design allows angles with lots of stress against specific joints. I.E. too many hard materials to flex and distribute the stress accross the entire structure.
@@pauljs75 look up the Thompson Coupling from Australia.
The biggest drawback of the “quaternion joint” is that it’s not actually kinematically defined with true rigid bodies. It relies on tiny amounts of joint slop and elastic deformation to act as a joint.
Thank you for the effort in explaining the concept in the beginnning.
Thank you so much for depicting your wonderful project. Your work and effort are oustanding. Your movies have been providing excitement and inspiration for so many years. Thank you again!
Your test at 17:00 is the money shot! That's the one I was waiting for - stable platform rotating is sweet! Well done!
That has got to be the absolute coolest robot arm I have ever seen!!! Now I want to print my own, lol. Thanks for sharing.
This is a great demonstration of inverse kinematics as well.
Fascinating point you made that because you're using three motors for two degrees of motion you can use the servos to eliminate backlash. Also like how this design lends itself to easy cabling. Very cool. Thanks for sharing.
Beautiful and magnificent. I can't believe I've never seen anything beyond the literal rolling joint - with the cables/strings and also only with one axis. These multi-axis rolling joints are awesome. Great stuff!
Brilliant, as usual. Love watching your work in Robotics!
Can't wait for further development on this arm. Please keep up the good work
Thankkk uu for all your sharing with us ❤️🌹❤️
Literally the most fascinating mechanism I've seen in ages.
This is really high quality and informative. People like you make the internet awesome. Subscribed!
Extremely cool concept and design. I could definitely see this design in usage for deep sea/space exploration scenarios.
Great work! Seeing this illustrates just how much of an engineering leap it is to go from this to factory level robotics to Tony Stark style concepts.
This is amazing. Craziest joints I’ve ever seen.
Amazing !! Great ingenuity and craftsmenship !
Super cool. Thanks for sharing
Very nice project, very interesting for solar's panel purchasing applications, congrats
Incredible, makes me want to step up my 3D printing game!
What an interesting design- thanks for making this video.
Love it, love it, love it. You are doing a great service 😊
Very cool design!! Love it!
I watched a video about rolling joints and didn't even learn how to roll a single one.
Kidding, this is a really cool mechanism. Thanks for putting this video together! :D
Thanks
Thank you for this very interesting video.
very organic moves, a joy too see :-)
Perfect Russian accent
Прикольная самоделка👍
Lol, I spent an entire weekend in Fusion 360 recently "inventing" this very same basic joint structure. It goes without saying that there is nothing new under the sun and brighter minds have usually tread the same ground. Keep up the great work and thanks for sharing!!
Also have a look at Mark Rosheim's Omni Wrist 3 mechanism.
@@dm5rkt Thanks! I just uploaded the concept I worked up. It moves in 3DOF, but would require linear actuation/artificial muscles to control. Not sure how practical. th-cam.com/video/oOC0FxmM4WA/w-d-xo.html . If you have seen my concept worked out further somewhere, let me know. I am not trying to be original, lol. Just want a compact solution for a "shoulder" joint. Of course my joint suffers from multiple positional limitations.
Need... more... degrees of freedom...
This has been great, thanks for letting us into your dev process 😁
That's a very cool robot arm! It looks elegant
It's just brilliant
Excelente video. Muchas gracias. Saludos desde Argentina
joint looks cool
Excellent CAD (Cardboard Aided Design)
TYVM for the brilliant lapel mic, your audio is superb!
these are really diferent ways to make joints !!! amazing sir
beautiful!!
Fabulous!
I'd love to see how you worked out the inverse kinematics for this thing. That would be a great video on its own. These spherical parallel manipulators are just so mesmerizing to watch. They remind me of a delta 3d printer in some ways. Beauty and engineering. Well done. I think it'd be cool to stick a 360 lidar on the top of one and use it for slam mapping in 3d.
Brilliant design and execution!
What an amazing project!
Incredible... Only yesterday I thought about 2-dof joint realization..
Perfect for sun tracking!
Super cool!
bloody AWESOME!!!!
Beautiful mechanism. Rigidity/stability will be the biggest challenge.
very lovely mechanism!
Super Cool!!
This is awesome! It’s like a mechanical elephant trunk. It’d be awesome to see 10 of these joined together getting progressively smaller by a factor of 1.618. I’d love to see this in 6061 aluminum with the proper power and servos. This arm would be extremely helpful in space on the ISS or on a moon base. Imagine it on an automated gantry that can move in x y and z. It could put together entire habitats and move parts etc.
One more epic, thanks so much for bringing us this 👍
keep up the awesome work your stuff never ceases to inspire :)
Brilliant.
This is AMAZING!!!
This video is absolutely amazing!
Very nice!!
This, scaled down, would make for a fantastic animatronic puppet!
wonderful video.
Very nice design, love it
That is really cool!
Cool project! Nice work!
Thank you for explaining how it works. I hope you see success soon
Fractal design! A larger one for the upper arm. Smaller one of the wrist. Even smaller still for a set of fingers!
Very interesting design for the wrist joint of the robotic arm. I wish, I saw this video, before starting making my own robot.
You always have great videos. This is a cool and unique design. Great work and thanks for sharing it with us.
Wow. Very nice work 😳💪🤟👌
Excellent video!
Super works. ..!!!
Super cool! thanks
Awesome!!!
wow, thats pretty cool. nice work
Really cool! You could add another DOF by putting the base on a rotating axis.
Very interesting! I am sure there are many uses for such a link.
Brilliant
Very cool board
really good
Very interesting !
great job!!!
you are a genius
Very fascinating ♥️
Dear Dynamixel, hope you are reading this. I am already a fan of your products, using them for years now. It is great to see you support one of my favorite channels. Would be happier if you support this channel even more!!
Very interesting design.
i like it! im sure it will lead to something very unique and useful
There is another benefit to this design, modularity. Your first 2 axis have the same configuration and the same hardware as the second 2 axis and so on.
I sure hope Robotis gives you the extra 3 motors. I love the organic nature of the movements - it reminds me of an elephants trunk.
Amazing! :O
Amazing
Woooa! Maravilloso
Very f'ng cool!!!!
bravo!
Looks cool and very clever
Add the ‘Eye Ball’ to this, ….. “Its Alive”…
And it’s a thing of beauty. 😎