In order to finance my KZread 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/KZread). 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!

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.

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°

@pauljs75

Жыл бұрын

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?

@abhiwins123

Жыл бұрын

@@pauljs75 I liked the counter idea, its an idea worth exploring.

@keixsy

Жыл бұрын

could someone explain this but for dummys? (me)

@gamerfortynine

Жыл бұрын

@@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.

@JinKee

Жыл бұрын

@@pauljs75 look up the Thompson Coupling from Australia.

Thank you for the effort in explaining the concept in the beginnning.

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 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!

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.

Spoiler : I watched this whole video, that robot does not roll a joint. Much sad, very disappoint.

@JinKee

6 ай бұрын

Add fingers in the next update

Your test at 17:00 is the money shot! That's the one I was waiting for - stable platform rotating is sweet! Well done!

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.

This is really high quality and informative. People like you make the internet awesome. Subscribed!

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.

Brilliant, as usual. Love watching your work in Robotics!

This is a great demonstration of inverse kinematics as well.

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!

This is amazing. Craziest joints I’ve ever seen.

Can't wait for further development on this arm. Please keep up the good work

Extremely cool concept and design. I could definitely see this design in usage for deep sea/space exploration scenarios.

TYVM for the brilliant lapel mic, your audio is superb!

Love it, love it, love it. You are doing a great service 😊

Amazing !! Great ingenuity and craftsmenship !

keep up the awesome work your stuff never ceases to inspire :)

Very cool design!! Love it!

Thankkk uu for all your sharing with us ❤️🌹❤️

That's a very cool robot arm! It looks elegant

You always have great videos. This is a cool and unique design. Great work and thanks for sharing it with us.

What an interesting design- thanks for making this video.

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.

these are really diferent ways to make joints !!! amazing sir

Literally the most fascinating mechanism I've seen in ages.

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

One more epic, thanks so much for bringing us this 👍

Need... more... degrees of freedom... This has been great, thanks for letting us into your dev process 😁

Super cool. Thanks for sharing

Brilliant design and execution!

very organic moves, a joy too see :-)

Very nice project, very interesting for solar's panel purchasing applications, congrats

Wow. Very nice work 😳💪🤟👌

Thank you for this very interesting video.

Cool project! Nice work!

Very nice design, love it

Excellent CAD (Cardboard Aided Design)

This video is absolutely amazing!

That is really cool!

beautiful!!

very lovely mechanism!

Really cool! You could add another DOF by putting the base on a rotating axis.

What an amazing project!

It's just brilliant

Excellent video!

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.

Add the ‘Eye Ball’ to this, ….. “Its Alive”… And it’s a thing of beauty. 😎

joint looks cool

Incredible, makes me want to step up my 3D printing game!

This is AMAZING!!!

Super cool!

wow, thats pretty cool. nice work

Beautiful mechanism. Rigidity/stability will be the biggest challenge.

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!!

@dm5rkt

Жыл бұрын

Also have a look at Mark Rosheim's Omni Wrist 3 mechanism.

@tariq7772

Жыл бұрын

@@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. kzread.info/dash/bejne/oYN3kqixnbCah6Q.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.

This, scaled down, would make for a fantastic animatronic puppet!

bloody AWESOME!!!!

Fabulous!

Very nice!!

Thank you for explaining how it works. I hope you see success soon

Super cool! thanks

wow, thats awesome! really nice work as usual! those rolling motions where both segments work together are really fascinating and elegant, like a dance. i know this was sponsored but it would be cool to see this design with stepper motors and belt reduction and maybe some carbon reinforcement of the floppy plastic links. maybe a soft robotics gripper at the end to turn it into an elephants trunk. :)

Fractal design! A larger one for the upper arm. Smaller one of the wrist. Even smaller still for a set of fingers!

Excelente video. Muchas gracias. Saludos desde Argentina

i like it! im sure it will lead to something very unique and useful

Brilliant.

wonderful video.

Я даже не сразу врубился, что видео на английском языке)) Русская речь на английском языке))) мне понравилось, спасибо!

Super Cool!!

Very interesting! I am sure there are many uses for such a link.

Very fascinating ♥️

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.

Very interesting !

Perfect for sun tracking!

really good

Super works. ..!!!

Very interesting design for the wrist joint of the robotic arm. I wish, I saw this video, before starting making my own robot.

Thanks

great job!!!

Instantly subscribed. Love this! Maybe you could use high speed DC motors with a very low gearing. Then for positioning you could use other concepts; perhaps include orientation sensors or some other kind of feedback.

Very cool board

Looks cool and very clever

Very cool! Now that you have DYNAMIXEL servos it would be cool to see a comparison between them and the GYEMS motors and maybe other servos as well :)

Incredible... Only yesterday I thought about 2-dof joint realization..

Brilliant

Very interesting design.

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.

Awesome!!!

you are a genius

3D printers can give you a super power because you can explore all kinds of ideas relatively quickly.

@juliusfucik4011

Жыл бұрын

True, but design and printing this in several iterations with a single printer takes weeks if not months. But of course, that is part of the fun too

@critical_always

Жыл бұрын

@@juliusfucik4011 yes very true. It's the design and CAD skills that matter. I do everything in open source OPENSCAD as I refuse to commit my designs to rent software.

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!!

Amazing

That mechanism would also be great for the spine of a robot, giving it a lot of mobility. Also, I wonder if this mechanism would be better if it is driven by cables rather than gears.

I would love to see this configuration done in aluminium and with greatly increased gear ratios. It feels like it could be 1:100 instead of 1:2, and still have usable top speed.

@maxgood42

Жыл бұрын

Then mount it on tracks with a FLIR camera and let it roam around the streets at 3am .

@ionutdimache3509

Жыл бұрын

You talk about harmonic drive? ;)