No video
120Nm 3D Printed Cycloidal Drive
Рет қаралды 235,136
Күн бұрынAd: Thanks to PCBWay for sponsoring this video:www.pcbway.com/
Do you remember when I built openDog version 3 and I designed cycloidal drives - there’s 12 of them in that machine and it’s still going strong. The motors are brushless motors controlled by ODrives and I‘ve got some more projects coming up this year using the new ODrive S1 servo kit which you’ll see in the next few months.
I want to build some much bigger machines though, which will probably move much slower, and I also want to make the designs accessible.
In this video I’m going to design a Cycloidal Drive using a DC brushed motor which already has a gear head on it, and if it goes well I’ll be using it to build some much bigger machines later in the year.
CAD & Code: github.com/XRo...
You can support me on Patreon, join my Discord, or buy my Merchandise:
***************************
Discord: / discord
Patreon: / xrobots
Merchandise: teespring.com/...
***************************
Other socials:
***************************
Instagram: / xrobotsuk
Twitter: / xrobotsuk
Facebook: / xrobotsuk
***************************
Affiliate links - I will get some money of you use them to sign up or buy something:
***************************
10% off at www.3dfuel.com... - use code XROBOTS at the cart screen.
Music for your KZfaq videos: share.epidemics...
***************************
CAD and Code for my projects: github.com/XRo...
Huge thanks to my Patrons, without whom my standard of living would drastically decline. Like, inside out-Farm Foods bag decline. Plus a very special shoutout to Lulzbot, Inc who keep me in LulzBot 3D printers and support me via Patreon.
HARDWARE/SOFTWARE
Below you can also find a lot of the typical tools, equipment and supplies used in my projects:
Filament from: www.3dfuel.com/
Lulzbot 3D Printers: bit.ly/2Sj6nil
Bearings from: simplybearings...
Lincoln Electric Welder: bit.ly/2Rqhqos
CNC Router: bit.ly/2QdsNjt
Ryobi Tools: bit.ly/2RhArcD
3D Printer Filament: bit.ly/2PdcdUu
Soldering Iron: bit.ly/2DrNWDR
Vectric CNC Software: bit.ly/2zxpZqv
CAD content is sponsored by Autodesk Fusion 360
@FaffyWaffles 6 ай бұрын
Open Dog is one of the coolest projects on the internet
@Alessandro--- 6 ай бұрын
James Bruton IS possibly the coolest creator on the Net.
@NealFosterHD 6 ай бұрын
Has anyone else made one from his designs?
@wktodd 6 ай бұрын
You might have room in the hub for a third disc to give three phase drive . That should prevent the cyclic load that you're hearing. You might have to split the cam to get the bearings on.
@Fabian3331234333 6 ай бұрын
The belt is actually quiet genius, as it's limiting the torque and prevents the gearbox from exploding
@GaryTheRCcar 6 ай бұрын
I think it's better for the motor to just stall, the belt will wear out real quick shipping like that.
@ashtonhoward5582 6 ай бұрын
@@GaryTheRCcar but the belt is cheaper.
@Unmannedair 6 ай бұрын
Belts are basically mechanical fuses
@conorstewart2214 6 ай бұрын
@@ashtonhoward5582 Just current limit the motor, you can limit the torque then too. A motor stalling isn't necessarily bad, its what happens after it stalls that is the problem, like continuing to run current through it and at that point it is just a resistor.
@GaryTheRCcar 6 ай бұрын
Just because the motor stalls doesn't mean it will break. as long as it doesn't overheat it will be fine. He can limit either the voltage or current to achive this@@ashtonhoward5582
@noahwomack9929 6 ай бұрын
Great video as always James! For once I might be able to help you out with a design. I've been working with a university rover team to design and build cycloidal reduction drives for use in our 5 axis rover arm. The idea you tried at the beginning of the video is actually what we're currently using, with the output of the gearbox being the housing of the cycloidal itself. If you'd like to take a look at our cad or ask any questions about it's performance I'd love to have a chat with you about the subject.
@kimtae858 6 ай бұрын
He doesn't read comments after the first few hours of a video going live. Twitter or Instagram are better places to get his attention, but be succinct about it. He doesn't read long messages, lol.
@Hawk7886 6 ай бұрын
@@kimtae858pretty sad really, the comments are great in videos like this
@BlizzyFox 6 ай бұрын
My favorite part of these videos is when James puts his hands in places where the 3d prints can crush him
@MattDunlapCO 6 ай бұрын
Holy crap. I was whole-body cringing and holding my breath when he was trying to stop the drive with his hands.
@AJ-Palermo 6 ай бұрын
I was thinking the same thing! With the 20:1 gearbox that's over 4500kg/cm!! A finger probably wouldn't even slow the motor down! It'd be a slight increase in current draw and a significant decrease in fingers!
@MattDunlapCO 6 ай бұрын
@jamesbruton, please do a follow up where you feed meats and various other objects into the gears or between the belt and idlers! Another demonstration showing how much more dangerous these machines are when wearing gloves would also be fun.
@AJ-Palermo 6 ай бұрын
@@MattDunlapCO that's a cool idea! I know firsthand (pun intended) how dangerous gloves are around machines with rotating parts. I work in a warehouse with conveyor belts, I'd never stick my hand in anything, but I was curious and stuck just my glove between the rollers, and even though the rollers lift up so they don't crush your fingers, there was still an impressive pulling force on the glove. If you were to stick your finger in there, it would definitely hurt, but you wouldn't lose it. With a glove on, especially a grippy one, you could easily lose your fingers or hand, maybe even your arm!
@MattDunlapCO 6 ай бұрын
@@AJ-Palermo my daughter may have lost fingers to a drill press if she'd had on gloves tougher than cheap cotton knit. Thankfully the material failed before her hand.
@davidcatanach2620 6 ай бұрын
Feel like he’s just phoning it in
@WarwickAllison 6 ай бұрын
His joke is getting very old. But he'll keep doing it to generate all this pointless "engagement" as his channel goes down the toilet with all the other meme-chasers.
@WolfmanDude 6 ай бұрын
@@WarwickAllison Why are you so mad about a minor visual joke in the intro? Not even normal mad, your comment reads like you are about to strangle someone :D
@ionbg7 6 ай бұрын
@@WarwickAllison It's his microphone
@FrodeAltink 6 ай бұрын
No, it is not his microphone! His microphone is on the neck of his t-shirt. The phone is just a prop. And I am loosing my focus half way through the video because of that stupid phone. Please, just stop using it.
@WarwickAllison 6 ай бұрын
@@WolfmanDude Bored of it rather than "mad". Every KZfaqr doing the same joke gets boring fast. I actually like that he's doubled-down - helps the meme run its course quicker.
@excitedbox5705 6 ай бұрын
To put the motor inside the gearbox you need to "cup" the motor with mounting points around the lip of the cup and the shaft through a hole in the bottom of the cup. Then you can put the bearings for the cam shaft around the cup. Or look for a motor with mounting points in the base. The size of this drive makes it kinda impractical, but it did lift 2 tons at 1 cm. Maybe going with 100% infill you can shrink the size a bit.
@erictheepic5019 6 ай бұрын
>Or look for a motor with mounting points in the base. Or he could *make* mounting points. I'm thinking either a battery spot welder or a (reversible) adhesive.
@lukedoesnotlie 6 ай бұрын
The first cam which incorporated the motor was beautiful.
@Xailow 6 ай бұрын
Giant open dog/AT-AT? Brilliant design!
@HelenaOfDetroit 6 ай бұрын
Having been watching you for almost a decade it makes me smile to see you learning and using mechanical principles. You've always been an amazingly talented electrical engineer with computer programming and maths skills beyond my abilities, but as I'm more inclined towards mechanical engineering then some of the earlier designs were sometimes difficult to watch. Nowadays though? Nothing but smiles! You've grown so much and you're getting so good at mixing the two specialties together to design and make incredible objects. Keep up the amazing work James! Thank you for sharing so much of your hard work, progression, information, knowledge, and passion.
@jamesbruton 6 ай бұрын
lovely thanks!
@sydnerd 6 ай бұрын
I really love that something as simple as the belt tension can be utilized as the max lift safety-limiter to avoid breakage of other parts that would break otherwise. Go Open Dog!
@aserta 6 ай бұрын
You can still have it in the center, just go to a larger bearing and make a casement that brings mounting points to the back of the gearbox (of the motor).
@TheGeniusSavant1 6 ай бұрын
That's exactly what I was thinking. At 3:48, it looks like it would be no problem to extend the sleeve and add mounting points at the back of the motor near the leads.
@leptok3736 6 ай бұрын
@@TheGeniusSavant1third along the lines of: Was thinking, could he increase the diameter of the collar he puts around the motor to run some tubes along the motor back to a solid foundation? Then everything else is the same just with the center diameter enlarged to accommodate it?
@pruthvimeka3259 2 ай бұрын
to stop the wobble and the mis alignment once in motion, you can screw the 2 cycloidal gear parts together while maintaining the offset. that restricts the wobble while achieving motion that the cycloidal gear system is supposed to achieve.
@tHaH4x0r 6 ай бұрын
For your first design, the problem with your wobbeling is indeed with the motor itself, but not necessarily with gripping it. Essentially you have an overconstrained problem here. On one hand, the discs (through the frame and bearings) want to determine the center of rotation, and on the other, the motor wants to fix it as well. So what you would want to do, is release certain degrees of freedom keeping the motor in place, and only constraining the DOFs that you need. In this case, you would want to constrain rotation around the motor axis (otherwise the housing would turn as well), as well as translation along that same axis. You probably want to somewhat release the other two rotational degrees of freedom, although they are of lesser importance here. What is most important, is that you release the two translational degrees of freedom. That would allow the motor to 'self allign', and to 'track' the center of rotation. This would prevent the thing from wobbeling loose due to excessive forces, and likely also fix that flexing issue of the outer case. That second design, the belt essentially fixes this overconstrained issue. It is pretty compliant in those translational DOFs (and rotation as well).
@t1000android 2 ай бұрын
I love the way you say "BEARING"
@davidhannan2672 6 ай бұрын
A fun thing you might try with the phone is to swap the earpiece and microphone leads in the jack, and then speak into earpiece. It will sound more like what you would expect a phone to sound like. Its not the microphone that gives old phones that characteristic tone, its the speaker
@killingtimeitself 6 ай бұрын
its also the phone network, as well.
@Wizarth 6 ай бұрын
I think a simple thing that would make these projects easier is a big switch for turning on & reversing the battery power. You could even make it comically large, so you can throw it forward/reverse with lots of visibility on the camera.
@BloodyMobile 6 ай бұрын
I'm genuinely impressed it managed to do 200 NM for a moment and the only thing that "broke" was the belt no longer being tight enough.
@jamesbruton 6 ай бұрын
yeah
@vell0cet517 6 ай бұрын
3d printed cycloidal drives always get me excited. I think they're going to play a major role in affordable robotics. One thing I will say about your design is that large bearings are expensive and heavy. I also get that sometimes you have no choice. Great video and I'm looking forward to what you're working on next.
@jeremyniemiec9252 6 ай бұрын
hello, you helped to inspire my senior design project in which I developed a 13:1 cycloidal. To reduce weight SLA printed bushings where used and they worked great!
@ManlyJack 6 ай бұрын
What's with all the recent videos being phoned in?
@SCU3A_S7EVE 6 ай бұрын
@@MaariSuave- r/woooosh
@UptownBoogieDown 6 ай бұрын
Boom boom tsck
@Eddesignful 6 ай бұрын
That is a monster drive. Keen to see the project that needs it.
@DanJanTube 6 ай бұрын
mind your wall thickness when you're designing those 3d parts. and use a inside radius whenever possible, carries the strain better than a sharp corner
@nevernether3368 6 ай бұрын
"Assign a point of failure or it will assign one for you" -engineer somewhere
@RiderRickMaker 6 ай бұрын
Made my first cycloidal about 3 years ago... milled and 3d printed with servos... that thing was savage. But..... metal is metal! :) Excelent project tough!
@matthewrennie1110 6 ай бұрын
Bro I swear you have the bast ratio of skill, dedication and talent. Doing a couple of my own projects right now but definitely planning on making an open dog at some point. Keep it up man love your videos
@AJ-Palermo 6 ай бұрын
And creativity! He comes up with really intriguing ideas!
@steffen1182 6 ай бұрын
wats up with this red phone? I dont get it! 🤔
@AnonymousAnarchist2 6 ай бұрын
Cant say why hes using a microphone inside a bright red phone, however I can say bright red phones have an association with important direct lines for a kind of neato oddball humor.. ish. I fail to find the humor myself but he seems to be enjoying it so.. meh.
@lucasrogers8021 6 ай бұрын
I'm building one of the Open-dogs right now.
@jessiejames3029 6 ай бұрын
post a video!
@patrickjdarrow 6 ай бұрын
Really love this kind of video that focuses on practical and fundamental elements James!
@CollectiveSoftware 6 ай бұрын
I love that solution for making an effective huge bearing out of plastic and small bearings
@_DML_ 3 ай бұрын
I love how everyone uses the time-tested "can't stop that with my hands" method to show that something is awesome and will be useful.
@jac2206 6 ай бұрын
So Impressive, for a 3D printed cycloidal. Everyone who still thinks 3D printing Is useless, should Watch a James Bruton video
@rommelfcc 6 ай бұрын
😊 very satisfying to watch cycloid gearbox drives 😊 💖⚙️💖
@faeranne 6 ай бұрын
A very nice build that's well explained, but I gotta ask... wasn't the intent to keep the motor inside the hub? I feel like about half-way through the video, the goal was kinda lost there. Might be worth re-tackling the original concept again, cause I'd still love to see a successful through-motor build.
@Gregulations 5 ай бұрын
Wow this may well come in use for one of my next projects! Thanks!
@technologyhobby 6 ай бұрын
I recently rebuilt a 4 tonne excavators final drive which is a very similar design to yours, but with a planetary gear set at the end, and three cam shafts spread out around the cycloid gears rather than a central cam to create that walking motion. The strength and reliability of these cycloid gear designs is incredible!
@preferredimage 6 ай бұрын
Really committed to that phone gag..... :)
@filemorf 6 ай бұрын
More like :( getting old fast, find it distracting, I will be skipping ahead here and there to reduce my view time. Too bad I usually enjoy and look forward to his content. Hopefully just a quick fad of a meme and over with it soon. I don't want to keep talking about it either due to the Striesand effect.
@GooopGoooop 6 ай бұрын
@@filemorf imagine being this emotional over an insignificant prop
@RinksRides 6 ай бұрын
120Nm?! From Plastic bits?! Are U MAD?! Cool gearbox, like the smaller bearings round the perimeter, I might S.T.E.A.L. that part of the gearbox in my own design. Not sure if that's more eco or just machining 5mm ball grooves between inside and outside housings.
@TradeWorks_Construction 6 ай бұрын
I liked the circumferential bearing solution, using multiple smaller bearing held into a grove rather than using a single massive bearing or bushing. I’ll remember that trick going forward.
@rikschaaf 6 ай бұрын
Increasing the belt reduction (if only a little bit) would also make the belt more tight.
@ed.puckett 6 ай бұрын
I first found your channel during the "Iron Man" period, and you never stop impressing me with what you are able to accomplish!
@CaptainXJ 6 ай бұрын
What's with the phone?
@ihydf 6 ай бұрын
Sweet! Now make a harmonic drive with a spline that isn't made of jello and a wave generator that doesn't just support the spline where the teeth engage!
@Eddy_AREA99 6 ай бұрын
Hi James, huge fan here. Your content is always a source of inspiration, blending creativity with technical insight. It's clear the role sponsorships play in facilitating your projects, and while support is essential, the recent increase in sponsored segments seems to detract from the fluidity and engagement of your videos. Perhaps there's a middle ground where sponsorships can be integrated more naturally, without overshadowing the fantastic work you do. Maybe shorter sponsor messages or a dedicated spot that doesn't interrupt the project flow could help maintain the integrity of your content. Thanks for all the hard work you put into your channel. Your projects have been incredibly inspiring, and I look forward to seeing how you'll navigate this challenge. Keep up the great work!
@QIKUGAMES-QIKU 6 ай бұрын
You seem to be still stuck on Hold every video 😁
@Advil1024 6 ай бұрын
The most powerful 3D printed servo on the planet. Time to make BIG robots.
@nlingrel 6 ай бұрын
Seeing it back-drive with the long lever arm made me think about a water wheel for generating power.
@eski5195 6 ай бұрын
For 3d printing your big parts, i'd suggest a 3d infill like cubic or gyroid. It doesnt add much time and make parts somewhat isotropic and more tough
@Machine1136 6 ай бұрын
I am vexed and flummoxed by the phone.
@jamesbruton 6 ай бұрын
I am speaking to you
@RevUnstableBoy 6 ай бұрын
I think what was happening with the first design was the gear was out of proper timing between the holes for the output bearing and the gear teeth. much like having to put the gear halves together so that the holes and the gear teeth line up, they have to be timed inside the outer gear so that they mesh properly with the holes lining up properly.
@JessWLStuart 6 ай бұрын
If James Bruton was on Gilligan's Island the castaways would have been home by the end of the first episode!
@Z0M8I3D 6 ай бұрын
That poor-man's big-bearing seems like a good solution for the flexing. Too bad the back end of the motor isn't keyed for a better inlayed holder for that center drive idea to work but with the second version (including thinner profile & the guide bearings [poor-man's big bearing]).
@Maltese82790 6 ай бұрын
I know so little about any of this, but I look forward to one day seeing you post a video about how you have made your very own Mech Suit.
@111elf1 6 ай бұрын
is it possible that on version 1 one of the excentric 21gears was rotated 60° and thus the excenters are out of sync? (this sentence makes sense in my mind)
@furmek 6 ай бұрын
seems like it! The internal 20 lobed - 6 holed parts have only one axis (plane?) os symmetry. If you rotate them by 60 degrees of what the supposed to be you will start pushing outer "race" out of shape.
@ceerstar851 6 ай бұрын
I like to see the mistakes and fixes.
@cbs1556 2 ай бұрын
So much work being put into something that will last 3 months of continued use maybe. I wish you would implement more aluminum T slot frames to negate some of the slop in your material of choice. just plan your 3d prints around the T slot frames and you would run into less issues.
@piotrnod6489 6 ай бұрын
That belt slip could be a safety feature, so your new entrance barrier (to the parking spot at your house maybe) wont kill anybody xd
@ethanmiller5487 6 ай бұрын
You could make that a hands-free phone with a rubber band or sweatband like all the cool kids lol
@mrwoodandmrtin 6 ай бұрын
Brother, you are getting pretty blase' about putting your hands around highly geared moving parts. You really need to check yourself. This stuff is now getting finger mangling strong. You need new safety protocols.
@Hawk7886 6 ай бұрын
Yeah those pinch points would blow up fingers like hot dogs hit with a hammer
@The12gaged 6 ай бұрын
Ya. Ngl, even though I knew this was posted and nothing likely happened, I clenched when I saw that. It not being bolted down, with the self collision issue, while all the sketchy finger work was going on was a recipe if i ever saw one. Glad it went like it did.
@BouncingBallGames 6 ай бұрын
Ooof that was painful to watch.
@Fanny-Fanny 6 ай бұрын
I disagree. I think it made it more exciting
@mrwoodandmrtin 6 ай бұрын
Good point.. It's just a bad ROI in my honest opinion. Entertaining you briefly in exchange for the premiant loss of a very useful fingertip. @@Fanny-Fanny
@buzz1ebee 6 ай бұрын
Ah the genZ youtube style of holding a headset whilst talking. Love it!
@NiksSofa 6 ай бұрын
you need to drop the phone joke. it's through.
@GodmanchesterGoblin 6 ай бұрын
It's a joke?
@sharkyshark1 6 ай бұрын
You could always brace the motor mount to stop that flexing to allow you to take it higher before it flexes again.
@Blue-bf8lv 6 ай бұрын
allowing the public to create their own customizable robo dogs is amazing.
@Peptou 6 ай бұрын
Hate that phone bit...
@Culpride 6 ай бұрын
If only the audio was consistent with it's use ... somtheing like "James lost a bet and now he has to use a telephone for on screen narraded clips." But this just seems to be a visual perturbance to artificially generate engagement.
@GrayGames1542 6 ай бұрын
nice to see your still doin stuff
@SacredHeart0520 4 ай бұрын
This guy is like einstein but with engineering in modernday
@TheMeditron 6 ай бұрын
Wow, that drive is so impressive! I keep thinking it would be sweet to see you build a scale version of an AT-ST, that drive might work in the joints?
@timehunter9467 6 ай бұрын
This has to be one of the best projects on KZfaq right now, I need to learn more about programming.
@lynnwilliam 6 ай бұрын
why are you talking into a phone ???
@davissimo123 6 ай бұрын
I am trying to figure out why he looks so incredibly good now
@WetDoggo 6 ай бұрын
you are definitely in the Emergency stop button territory 😅
@DariusAlexanderMusic 6 ай бұрын
(maybe bad) idea for improving belt skipping;- can you have the belt go around the pulley entirely? if you imagine that normally the belt is in contact with around half of the pulley, instead could you have a pulley that guides the belt to wrap around 1.5 times. Obviously, you'd need a corkscrew-shaped pulley so the belt doesn't clip through itself, and a belt that can flex that much.
@dekutree64 6 ай бұрын
Corkscrew pulley would cause the belt to travel sideways as it turns, so it would have limited range of motion similar to capstan drive.
@DariusAlexanderMusic 6 ай бұрын
@@dekutree64 excellent point, didn’t consider that.
@corwin.macleod 6 ай бұрын
So you have an rv gearbox, a planetary gearbox already mounted on a motor and a belt transmittion on top of it. I think there is some room for optimisation here.
@mhenlopotter1612 6 ай бұрын
Petition for James to buy a small 12V screwdriver 😂
@42maneatingplants14 6 ай бұрын
I love that it's a compact gear reduction the size of a basketball.😂
@zardozspeakshs1111 6 ай бұрын
lol red telephone is getting weird
@jessydeslauriers8391 6 ай бұрын
U might not know it yet but u just made the best electric garage door opener system just change the arm for a rope/wire winder an ur set... an that was out of plastic not aluminum are steel 👏🏼👏🏼👏🏼👏🏼👏🏼
@theinterwebs4443 6 ай бұрын
I'm surprised that James hasn't tried to build an RV Gearbox (rotate vector), which would be more powerful then just the cyclodial gearbox. I believe Nabtesco from Japan has the patents and is credited with the design. There are CAD models available from the Nabtesco website too. There are some very impressive capabilities of the RV gearbox.
@dennisdecoene 6 ай бұрын
If it's patented, then there is the answer, he does only open source.
@roseroserose588 6 ай бұрын
@@dennisdecoene patents only apply if you're trying to make money, if you're just doing it for fun you can do what you want (:
@tasa4904 6 ай бұрын
@@roseroserose588 Yes, but then he can't publish it for the public to reproduce without seeking permission first. Because he uses an incompatible licensing scheme.
@Pgr-pt5ep 6 ай бұрын
The size of the 3D printed parts he makes scares my like a kid would when getting close to a steam locomotive.
@BadgerRobot 6 ай бұрын
Bring back open dog!
@andrewslater6846 6 ай бұрын
If you have a method of measuring the concentricity of the motor housing to the shaft, you might be able to find why it was warping the outer ring. I think if you could constrain the cam shaft radially and just have a torque arm to prevent the motor from rotating, you would eliminate some tolerance stack up. But a torque arm would only work well if the motor was securely attached to the cam shaft (taper shaft or bushing) more than just a key and screw. Which isn’t really common for a 10mm shaft. But basically you reduced the number of axis you need to have tight concentric alignment by having a belt drive.
@crystaldragon141 6 ай бұрын
you could probably put the belt side in double shear with one more plate. It would be nice if the motor had a longer shaft so that could be supported as well.
@ProximitySound 6 ай бұрын
Love your content, but please ditch the phone if you're not going to actually use the audio from it. That or process/mix your audio to sound like it's actually coming from the phone.
@guipop2614 6 ай бұрын
You could replace the belt by gears in order to avoid belt skipping
@wecirclethesky 6 ай бұрын
Nice James
@ethrilswifthawk3769 4 ай бұрын
i think in the first version one of the inner cams was a tooth off or something causing the output bolts to press them further out then the diameter of the housing, thus the flex
@FSK1138 18 күн бұрын
Giant Open Dog that you can ride 😎
@CrudelyMade 6 ай бұрын
if you put a support bar between the motor on the shaft side and the center of the gear, it should keep the plastic from bending and moving the motor toward the gear, keeping the belt as tight as it is initially. it's really jsut a space that you might be able to put on/off, I don't think it'd have to be super duper sturdy to work, with the way it'd be arranged.
@soodonym 6 ай бұрын
I enjoyed that immensely. Thanks.
@AlexanderBurgers 6 ай бұрын
I think it matters to align the cycloidal wheels, because 20 doesn't divide by 6. Pretty sure that's why the first one was flexing and unhappy the moment you bolted the output on, the holes for the output 'pins' weren't aligned right.
@Sharkerp38 6 ай бұрын
Hate being negative, but the phone is just annoying and distracting.. The engineering and robots, on the other hand, are incredible
@filonin2 6 ай бұрын
Why are you holding a phone? Did your mic break?
@SCU3A_S7EVE 6 ай бұрын
10:15 - Because everyone knows PCB stands for “Please Call Back.” ☎️
@gcl2783 6 ай бұрын
You're a gem.
@weirdsciencetv4999 6 ай бұрын
Could you please do an episode on dynamically balancing things? Like a setup that measures amplitude and phase of vibrations and then computes what amount of mass to remove and where.
@Koooo4 6 ай бұрын
I think we can drop the phone gag at this point..
@colonelbubble 6 ай бұрын
I think you misaligned the disks in the first version, causing the wobble. Given 20 teeth and 6 holes, there should be 3 distinct positions for the disc relative to the other when mounted on the 6 studs. Look at the overlapping circles, they seem to be asymmetrical (as seen in 6:07)
@terencem9962 6 ай бұрын
I really appreciate folks that contribute significantly to open source technology development. So many smart and talented people do, and the world is way better because of it. I think the mentality people have to developing technology openly and collectively is a superior way of existing than the purely capital and greed driven alternative. Sure capital and greed driven projects have given us a lot, but had these been open source developments i think the world would have advanced much quicker. Look at 3d printers. It was only the expiration of patents that saw the technology really take off, and even though prior to that systems were available to those willing to pay, they were so few and far between and too prohibitively expensive that they really weren't the great contributors to productivity that modern 3d printers have become. Maybe i am wrong about this. I only know the pub science facts, but that is my take on the whole 3d printer patents thing.
@santosvella 6 ай бұрын
Why are you holding a phone???
@dekutree64 6 ай бұрын
I can't believe how well that second one worked while still having the skinny ring. I've always proportioned them with OD = 1.5x disc diameter, whereas yours looks like 1.2x.Taking some rough measurements from a screenshot, I think that would make the solid ring (excluding the teeth) about 3x thicker, so 27x stiffer. Maybe I've been overdoing it...
奧特羅羅 Ultraman
Рет қаралды 6 МЛН
The Thought Emporium
Рет қаралды 562 М.