It amazes me that you can come up with these projects week after week and somehow they keep getting better and best of all anyone can make them. You have some serious skills to be able to crank out parts that consistently.

@garrettstater7700

2 жыл бұрын

Mans a genius

@hanshuelsman9121

2 жыл бұрын

B

@jpaugh64

2 жыл бұрын

Seriously! I can see that he's incrementally making the projects more difficult, and combining concepts from multiple videos. However, he's reached a level where it would be hard to catch up and compete.

@garrettstater7700

2 жыл бұрын

@@jpaugh64 the good side of the internet, where combine knowledge and experimentation leads to advancements and improvements to simple technologies it’s amazing really what he’s using his channel for so many people put out thoughtless mindless content but there’s people like him, I also enjoy Nile reds videos as well as Cody’s lab it’s so great to see people actually using the internet for good

@madeintexas3d442

2 жыл бұрын

@@garrettstater7700 Yep all of those are good. There is definitely a good side of KZread. You just need to know where to look.

This is a super neat concept. It feels almost steampunk to me, using a single constant uncontrolled rotational input (like from a water/windmill or large steam engine) and using it to power the complex motion of a robotic arm. It would be super cool to try to extend this concept by making the control system analog too. Steampunk is definitely the wrong word but it's the best I could come up with.

@greenlemon9155

2 жыл бұрын

analogical mechanic seems the closest, and yes its really cool

@rikvermeer1325

2 жыл бұрын

Lol, i could see it before my eyes :) so idealistic and "smart"

@Pcat0

2 жыл бұрын

@@greenlemon9155 Yeah "analogical mechanic" is probably a decent word to describe it. I guess what I was originally trying to say is that this would fit well into a steampunk world.

@roostertechchan

2 жыл бұрын

I mean, why not convert a windmill into a giant robot arm :)

@AlRoderick

2 жыл бұрын

And then we get Don Quixote to arm wrestle it.

❤ all I can say is "About time someone realized the genius of the armatron!" It was my favorite toy growing up. When it finally broke, I found out that it ran on just one motor. I was amazed. I have always wanted someone to build up an arm with a single motor. With this project, I hope more engineers can understand that you can build with less motors.

@invaderkendall

2 жыл бұрын

Armatron was my most formative toy. My psyche giggles when I see them pop up.

@scrocrates6380

2 жыл бұрын

Motors are cheaper than good ideas.

@absalomdraconis

2 жыл бұрын

@@scrocrates6380 : That may be true, but one normal motor and several small motors are cheaper than all normal motors.

I'm so impressed with your ability to visualize these incredibly complex mechanical systems.

I have never seen a more impressive set of shaft and balls! But seriously, your ability to create working robots or mechanical contraptions from loose-tolerance 3D prints is incredibly impressive to me and always a joy to watch.

@cmbaz1140

2 жыл бұрын

lol

There's an alternate reality where the induction motor was never realized, and we instead have six-axis robotic arms running off a diesel engine and some brush motor CVTs to build cars.

@rikvermeer1325

2 жыл бұрын

i hope that we're in the one that starts to use tissue and synthesised ATP running binaries on a enzyme processor

@TauCu

2 жыл бұрын

Hydraulics go pooomft.

In principle, this reminds me of the old school woodshop/machine shop systems where all the equipment was powered from a single source (water wheel/steam engine/etc) and a belt drive from the ceiling.

I think using the old different-colored gears from you earlier robot is actually a good thing. Since you're using various bright colors, and not really trying for an 'industrial' look, the more different colors you have allows you to use phrases like "the green gear" or "the pink rod" in your audio descriptions. This helps us spot exactly the component you are referring to. Since you obviously have access to many colors, I suggest you take advantage of that. Great CAD work by the way! All the screw holes aligning is 'imagineering' at its finest.

@77Avadon77

2 жыл бұрын

What CAD program is that?

@NanescuRadu1

2 жыл бұрын

@@77Avadon77 fusion 360

@77Avadon77

2 жыл бұрын

@@NanescuRadu1 is that the best program for creating more complex things like vehicles? Or should I try something else. Thank you

@NanescuRadu1

2 жыл бұрын

@@77Avadon77 its a good tool, complex enough to handle alot of things but simple enough to learn ... you can also try solidworks or catia ( its used alot in aerospace design )

I can not begin to explain how much I loved Armatron growing up. I had one when I was really little and it broke; then RadioShack re-released it in the early 90s and I sold a ton of comics so I could buy it. I loved the little game it had too, I used to pretend it was radioactive stuff that I had to carefully manipulate with the arm.

@brucereichert6509

2 жыл бұрын

Same here, I own 3 armatrons now.

@clonkex

2 жыл бұрын

I've never owned an Armatron (or even heard of them before that 8-bit Guy video) but I still feel like I can relate haha. Being a kid was so awesome.

@jasonrubik

2 жыл бұрын

I totally forgot about Armatron, and almost had a heart attack when the flood of memories came back just now. Oh my god. Where is my Armatron ?!?!?!

I had an Armatron! It's one of the reasons I'm an engineer today. I took it apart and put it back together constantly when I was a kid. When I first opened it up it blew my little mind that it all worked with just the one motor.

This and many of your experimental projects may not be practical, but I'm sure aspects of them has inspired solutions for other makers projects.

I would love to see a video about what screws. Bearings gears and which tolerances you use for printing them since I have a lot of issues with it and your projects always seems to work lovely.

I had an Armatron as a kid. It was hands down my favorite toy

My god ball gears are so cool that's amazing they do everything speed, reverse, brake with a dope design. Thx james !

What fascinates me the most about your channel is how easily these ideas seem to stream into your mind.

Always hang around for the “AaalRIGHT that’s all for now!”, possibly my favourite part of every video

Please never apologize for a miss match of colors because your projects are always AMAZING looking!! You are magnificent

Really nice, learned a new clutch today! Cant wait to see the PID controller and the differential shaft :) Looking to get some better understanding of PID, closed loop and (inverse) kinematics

the amount of projects you push out is just astonishing!!!

It looks like this could pretty easily become an artillery turret. Lol

@rikvermeer1325

2 жыл бұрын

I've made an omniwheel robot base and together with a LED strip and LiDAR scanner there's a 15W laser just laying there wanting to get installed on it. Can't ever use it or no-one may look... but still... it's science fiction coming to existence. Weirds me out though that Asimovs' laws imply a robot knows what harm is... lol

The complexity of your designs is just evolving! And pretty fast!

Designing such a concept took balls

Wow that TPU clutch mechanism is cool. Really interested to see how you will transmit the power through to the elbow joint! This is such a cool idea and I cant wait to see how far you can push it!

That’s an amazing project, can’t wait to see the next stage!

very impressive, good job. Its amazing how 3d printing has opened up the world of mechanical engineering and prototyping to the masses

Really like where this is going. Thanks.

I thought of this when I saw your first video. Would be interesting to see how far the concept could be pushed. Maybe an open dog or exoskeleton that uses this concept to avoid needing too many expensive o drive and motor combinations.

I still have my childhood Armatron 👍

Quite inspiring Thanks for creating this, can’t wait to see where it goes!!

I think having the driven and driving side of the balls different colours looks awesome

FINALLY!!!!! I've been waiting for this video for ages

I explored this idea. Instead using a flexible drive shaft passing through the arm. Each joint being compromised of two electromagnetic clutches, one for forwards motion and the other connected to a gearbox for reverse arm movements. Also position sensors for precise control.

By far the most interesting project yet.

A CVT that can enter a negative gear ratio is called an Infinitely Variable Transmission (IVT).

Great project, have to love 3d printers and as someone who has built a couple of robot arms of different sizes and types when i was more clicked and must say i like the concept and could see this being shrunk down and used for lots of applications

I had an Armatron as a 90s kid!

LOVE that cvt ball system.

Just found this, interresting project. I'll be following to see how it goes, good luck! It just makes me all the more wish I had a 3D printer!!! Im an engineer, but due to some serious health issues unresolved so far i am unable to work, so I "live" watching things like this.

Another great CBT video!

this man could take over the world with enough pla and bolts

I just had a thought on this one. Instead of moving the drive gears maybe have one spline shaft that always turns and individual servos to engage gears on and off the spline. One servo could have three positions each for disengaged, engaged left and engaged right with a second gear.

The phrase "nice and tight" sounds like a German verb, to me...🤣Thanks for posting, you're always interesting...👍

Great Video. I didn't expect the thing to be this big.

I feel like you could never hear this enough but your a genius which I'm sure you know lol

Awesome! Ive been conceptualizing something similar for jet engines. To replace the multiple concentric shafts.

I had an Armatron growing up but couldn’t remember the name… nor did I know how it worked! Amazing

I just noticed the rough overhangs at 4:45 (I assume the part was printed upside-down from the way it's mounted) and want to mention a brilliant "hack" I've picked up from Angus of Maker's Muse fame: The gap looks perfectly manageable with bridging, but the hole for the bolt obviously breaks continuous edge-to-edge bridging; if you add a single, "sacrificial" solid layer below the hole the print will use that to bridge, creating sort of like a support for the layers to follow, and being just one layer it's trivial to clean up after printing. I know the issue isn't critical, but it's something I do in pretty much every project where I have "enclosed" features (i.e. where supports would be a hassle to remove) like side pockets for nuts cause it's so convenient.

omg I had an armitron as a kid. it was a hand-me-down and the thing still worked some 15 years after it was made.

Absolutely incredible.

Really interesting way to drive the robot arm! I don’t know about the armatron and looks like a cool toy too

ONCE AGAIN I AM BLOWN AWAY!!!

Awesome work.

This is really interesting! Looking forwars to see how the srm turns out!

I think you should connect the cycloidal drive chassis to the top plate of the gear box, it could alleviate some of the wobble in its motion. Then a tpu section or something else could make up the rest of the difference so tolerance wouldn’t have to be perfect. I really like this project and I think it has a lot of real potential.

Love the armatron, there are some detaild schematics online of somone who took it apart to remove a single grit of sand stopping it working. I pri ted out the drawlings and put them on my wall.

To reduce flexing sideways, make sure the additional members provide diagonal strength, either through struts or a solid plate that carries the diagonal force vector. Don't put a hole in the middle of the force line, keep forces on both sides of the hole.

really interesting concept 👍

Dude, you're channel is amazing, it's exactly what I am learning now everyday, how is it possible youtube didn't recommend it to me before! Please, may I ask about an approximate budget discarding the 3D printing? Best luck!

Hmm. If you put two rails around it and had two spring loaded metal wheels, you could provide power to it with out having trailing cables as it rotates. Nice looking design.

Nice work!

Holy cow that is impressive! Reminds me of the wee bots in the new episode of Boa Fett!

Given the number of comments on it, it looks like bringing back the Armatron might be a good business idea💡. Nice to see that James is developing a kind of toolbox of reusable components with every new project he works on, so he a) can recycle parts of previous projects, and b) doesn't have to design everything from scratch every time.

I think the ball assembly could improve, instead of using a bracket it could use a center axis, something like ------ that, covering the middle part with the tpu ball, since it just rotates on a single axis having the top and bottom part of the ball fixed on place shouldn't affect the mechanism

Somehow James manages to do the equivalent of an engineering honours degree project EVERY week.

I think you've unintentionally reinvented the mechanical computer :-)

I like the colour scheme it's cool.

@jamesbruton

2 жыл бұрын

thanks!

This is super cool.

I actually made a similar system a while age for a lego Mindstorm to overcome the limits of the maximum 4 motors

I still have my armatron. It's such a cool toy.

Love this!! You should look into eCVTs

It's amazing!

I would love to see you build a battle bot in the future

You could try adding some light springs to the shaft that the balls are on to take up some of the slop.

0:01!PS every 3d printing makes not exactly round surfaces more ecliptic!!nice concept!

Very cool!

Slanty spur gear = Helical gear Very Slanted spur gear = Worm gear Got it!

at 9:18 why not mirror the 'ball' mounts and wormgear assembly on the otherside of the drive line, so each drive wheel on the drive shaft drives 2 balls and giving 4 outputs in the same volume while not needing the center drive wheel. the ball on both sides of the drive wheel might help to equalise the forces pushing it away from the ball when there is load on the output.

@jamesbruton

2 жыл бұрын

Because the outputs will be in the wrong place

I could imagine this concept very well for a tracked vehicle, it could probably be done purely mechanical, by having the lever for the right and left tracks directly rotate the spheres...

Hi James, I am currently in the planning phase of building a robot to fetch my mail from the mailbox, but the opening for my mailbox is very very small. Do you have any suggestions for a slim and/or versitile grip that would consistently grab mail out of the box, and also off the ground if it drops? I'm thinking an arm attachment that interchanges between either a claw grip or a small vacuum, but would love some suggestions.

It will be nice if you create a series on using fusion for designing and assembling robots

Brilliant

Not quite the same, nonetheless, reminds me of a snowblower in the way that a single motor runs a few different oprations at various speeds. Nice project James.

This is really cool. What is the blue with the eyes bot that you had on the self in the background? I'd like to search it n go see the build vids for it.

Really curious about how this one is going to turn out!

I'd be curious to see Skyentific's opinions and take on this kind of robot arm. Servo-driven CVTs with a central power motor is interesting, but I'm curious as to how well it would scale. Personally, I think the drive motor should be in the base of the robot, remaining stationary, this would also allow for larger motors which would help with scaling; a similar setup to this, just with a vertical multi-CVT housing in the shoulder. Designing it in this way may also allow for more expandability, say wrist and end effector control, all you would need is a slightly taller shoulder to house the additional components, as vertical stacking is a much better implementation than horizontal expansion, it'd give more options for more arms with the only major difference being the vertical displacement of the end effector, rather than having a wider base. I'd also be interested in seeing the CVT concept combined with wire-based actuators like what the LIMS2-Ambidex design uses, though that's only one example of that type of actuator, using a wire spool, pulleys, and potentially a block and tackle setup for extra leverage, in a tendon-esque setup to manipulate joints. I believe this concept has potential, my only major concern is scalability, as there's not much function outside of light workloads if it can't scale.

Can you please do a video on filament artificial muscles!

Reminds me of my school days.

Комментарий в поддержку канала и ролика, а также труда мастера.

I used to have an Armatron as a kid, gears didn't last long!

how is the arm going to stay up when not in motion? there doesn't seem to be any holding power here since the wheels can turn freely when disengaged from the drive shaft

Curious on the kind of torque you can get from this cvt system. One problem with the idea's of mechs has always been getting the energy to the limbs without having hevey motors on each joints. Not sure if this CVT gear would sruvive under those kinds of stresses but it does make it an interesting idea. Can't wait to see the arm.

Cool. I don't know ya dont make the mating gears for the worm gears slightly concave on the gear face, to better fit the worm gears.

So cool.

James, is it worth looking at using something like extruded aluminium channel that fits into slots in your prints to act as ribs to increase rigidity and span of the parts, thus reducing the volume of the printed parts? As the material would only need to be cut to length and have mounting holes drilled, it could save time as well.

@jamesbruton

2 жыл бұрын

Yes I've used it a lot in the past, normally for bigger structure though.

weird question but what layer height do you use usually?

@surideedesigns

2 жыл бұрын

And with which nozzle diameter??

@FacepalmVideoss

2 жыл бұрын

he has a video over him fixing his printer up and upgrading it,, so if you find that video you might be able to find out

A toy named Armatron, hmmmmmmmmmmmmm what an interesting name that is

hi, I am amazed at your craftiness ... I do have one question, the red 3dprinted toothed ring ... I see it's flexible, bu is it also stretchy? did I understand that correctly?

Neat. That is interesting. I am a fan of cvts. To the point where im working on my own. This one should be all metal and meshed. Though im pretty slow heh

Nice project, you definitely have some underextrusion problems on your printer with grey filament

How will you move the balls? More motors, right? I don't have all the DIY equipment needed, but I've been thinking for years about doing a spider robot with a single compact motor. One interesting mechanism I saw a paper on, was using a magnet on a gear and magnetic "latch" of some kind. If the gear is going too fast, the magnets never snap together. But if you slow it down at the right time, you can mechanically connect gear systems. Such a system could be used to control the balls.

@jamesbruton

2 жыл бұрын

Smaller motors, not huge brushless ones with large gearboxes