Designing Robotic Joints For Concept Artists

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A long time ago I heard a quote from a concept designer about designing robots: "Once you've designed which type of joints go where, the rest of the design process is just window dressing". And there is some truth to that. After deciding what the robot's purpose is, the next most important thing is deciding how its going to move to achieve that purpose. And to do that requires joints.
Many robot designs use "magic joints" that seem to always be able to bend in any direction you want, but to truly make a believable robot, you need to at least know how real robot joints work before you go off and make something more fanciful. So this lesson is a quick discussion of the major joints you'll find in actual robots, and then a few examples of more complex joints to spice up your design.
For more info and other lessons, please visit www.neilblevins.com/art_lesson...

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Опубликовано:

22 авг 2022

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Комментарии : 27

$@Refract3d$

@Refract3d Год назад

Good stuff! As a mechanical engineer, these mechanisms are all too familiar! One thing to maybe mention to add 'flair' to the designs, is that things like hydraulic cylinders require hydraulic fluid, usually brought in by flexible hoses connected to them. they are then strung along the 'arms' or whatnot, and certainly add more realistic details to the final design. There might also be limit switches or sensors, so those hose lines might also have 2-3 more 'power' lines bundled up with them adding even more details. All of that adds to the realism, even if the final result might not necessarily work 100% in the real world.

@ArtOfSoulburn Год назад

Thanks Refracted, and ya, love using those hoses for hydraulics. Maybe I should do another video where I focus on adding pipes and wires that actually have meaning rather than random stuff that just looks cool :)

@user-zq4dl5ou3g Год назад

I find somewhat magical ball joint also very useful. When all the mechanics tucked out outside (hydrafulics) or inside the sphere of the joint. It's mostly used in japanese mecha designs.

@marcosdtorres Год назад

This is gold Neil, thanks a lot for this quick pearl of knowledge.

@edwardconner3577 Год назад

This video is perfect for the project im working on, thank you sm for the great vid!

@williamsokol0 5 месяцев назад

I am pretty sure your elbow joint at 5:40 technically has 2 degrees of freedom since the are 2 different angle inputs for each joint

@ArtOfSoulburn 5 месяцев назад

So I see what you mean. What I was trying to get across was that you only get rotation along 1 axis, even though you have two joints that gives you better freedom along that one axis. So maybe I should have said "rotation around 1 axis" instead.

@lucasgarcezxyz Год назад

Thank you, very useful! Your blog is also my reading before bed too, great content.

@ArtOfSoulburn Год назад

Thanks Lucas, glad you've found my stuff so useful!

@jayfrost1253 Год назад

Wanted to learn more about robotic joints for a personal concept art I'm working on, appreciate the information mate. Subbed

@ArtOfSoulburn Год назад

Awesome, so glad the information was timely for you.

@TheMarlz2 Год назад

Awesome work, this helped a TON with my concept stuff.

@ArtOfSoulburn Год назад

Glad you’ve found it helpful!

@MeshVoid Год назад

You have very valuable and helpful content on your channel, hope it gets more views and your channel gets more subs!

@ArtOfSoulburn Год назад

Thanks Mesh, glad you're digging my videos!

@TheTrumanZoo Год назад

Cool video

@nikolayusupov Год назад

awesome

@Rose_Harmonic Год назад

useful for the exact thing I am in the middle of.

@chuzzbot Год назад

I've seen a new type on the tesla robot with two parallel extending piston style motors joined to a t shaped connection, which works for wrists elbows and the like

@bruceyu2435 10 месяцев назад

This is very useful stuff, thanks a lot. But as a concept artist I wonder how to power or fuel these joints to make them actually move? It will make designs much more believable.

@ArtOfSoulburn 10 месяцев назад

Glad you like it! There are many sorts of motors that can make these joints work, such as step motors or hydraulics. So yes, as well as knowing how the joint will bend, you can also play with motor types, which can give it even more believability.

@arxmechanica-robotics Месяц назад

An ankle has 3 degrees of freedom, not 2.

@shadowssun1120 Год назад

What is the purpose or fuction of the sliding joint?

@ArtOfSoulburn Год назад

Here's a good video showing an example of this joint: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-4j-diMsv5s4.html

@simplyfuns Год назад

To be honest since all the progress of AI I have lost a lot of motivation to create 3D Soon this technology will reach 3D (look at dall e and midjoarney roadmap) How do you see this technology in relation to our professions and careers? how to bring back my motivation ?

@ArtOfSoulburn Год назад

Well in some ways the subject mentioned in this video is going to be extra hard for an AI to handle. AIs currently are really good at looking at a bunch of images and mimicing them. But it has no sense of why it's making the image. Robot joints is a design issue, it's all about why, it's how to make the robot actually work and articulate. Not saying AIs will never get there, but even once they can mimic 3d models, they're gonna put the joints in weird spots and it'll be up to the artist to know that's wrong and fix it. Not sure if that gives you some inspiration back, but if you're a concept artist, focusing on design I think is a much safer bet right now.

@chucksailar2039 7 месяцев назад

Dude i think you are right but at the end you should listen to yourself and ask: why should i ask for permission rather then tell the world how things will go with my life! So if you enjoy doing things - go do it. You will learn to learn along the way! That`s the skill that will save your arse during this AI revolution, because no one knows which profession is next. And you need to learn new things and maybe even start over again and again from 0.