Another 7-axis (7DoF) Brushless Robot Arm (part 4)
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- Опубліковано 27 сер 2024
- This is the 4th part of the Another 7DoF brushless Robotic Arm. In this video I complete the mechanical assembly of the Robot axis 2 and 3. Next time we will connect ODrive controller and tested it!
Special thanks to my special Patrons: Wesley Corp, RobotDigg Shanghai and Pierre Freyssinet!
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#Robotics #Robot #RobotArm
Your 3D printed parts always come out amazing! I, for one, would love a video on your slicer settings, design tolerance etc. I haven't come across too many tutorials on printing mechanical parts so successfully. Love your videos!
Devin Moodley Since he had them in that box in the beginning, I have a suspicion that he used a 3D printing service. The parts I have ordered come out flawless like the ones he had, nothing like my own 3D prints.
Kristopher Yang I thought the same thing at first but it looks like a used filament box.. and he’s replied to some of the other comments asking for a video and agreed! Fingers crossed
He posted on another comment that he prints them on the Prusa i3 mk3
@@KristopherYang You cannot outprint mechanical parts, especially gears. The backlash you get is combination of printing settings and tolerances embedded in the design. To nail the tolerances you need to have control of both and make them work together. You need a good printer and a lot of patience, but eventually it can be done.
Excellent use of the "mirror assembly" technique :)
why is watching this so therapeutic? there is also something calming about the way he says bearing.
wow, your design of these robot arms and actuators is astounding. Very sound mechanic designs and impressive assembly features
Yeah. Its really impressive. Although I think It is batter to put those fans somewhere more serviceable! Imagine those go noisy and you need to replace them, It will take lots of efforts to do that!
@@mahdimahdavi He did use high quality Noctua fans at least. They're very quiet and should last as long as the other components.
MrMattumbo yes. And I did not find easier way to install it. It would be nice to have them easily accessible. Maybe for the future!
Thank you!
Wow, this is a poster child for the utility of 3d printers. This is an amazing creation in itself! Thanks for sharing.
Please can you make a video how do you 3d print parts ,and talk about it ,thank you ,you do a good job 👍
Thank you. I will do it. I wanted to make it for some time already.
Skyentific that’s GREAT!
Like many others here I always wondered how much tweaking might have been necessary to get your prints THAT precise fit.
@@Skyentific I am also very interested in learning about how you set up your 3d printer. hotend type, Nozzle sizes, infill configs.. etc. Those prints are really quite nice. I am mostly curious about the process that you took to calibrate the printer and how you prevent under/over extrusion so well.
Also want to know about your printer setup. Thanks!
These videos simply make me happy. No small feat in these times. As a CNC and 3d printing enthusiast, I just eat these up.
Nicely built differential!
Your videos are so amazingly creative! Following your channel has made me focus harder on my projects!
Sir ur solving complex problem in simplified way which is amazing and very few great person like u sir have this talent
woooo, awesome!
1. click like
2. watch video
3. watch again
Yes!!! Thank you!
Dont mind me just making comments so this gets recommended to other people!
Very nice project. Congratulations from Brazil- Parana state- Araucaria city
Great channel glad I found this
I make arrangements to watch your videos in peace and without any disturbance everytime. I feel so motivated to do such projects. Would really love to see a video on slicer settings, plastic to metal tolerances and plastic to plastic tolerances
Fantastic work!!!
it is so fun just to watch you build stuff.
I like how he says "bearing". Great design. Subscribed
Great work
That mechanism is so cool! I had never seen that before, perhaps just because I don't know much about robotics... but the possibilities with such a "simple" theory as to how to control the end is really cool to me.
Excellent work as usual!
Wow.. Just wow..
Everytime I see another part of this, I'm as amazed as with the first video of yours. Please, don't stop, stay focused and a big congrats for what you've done so far!!
Love your videos, great work and use of morrior tool wow!
I have never seen anybody better than you when it comes to engineering, great work and I would like to buy the robot arms once it is made, please sell it in two versions, as 3D printed and in aluminium with higher payload, may be you can make the gears aluminium or steel once everything is finalized, this is a great process and you are so great for sharing your knowledge
Awesome, looks very reliable.
nice work
Awesome stuff. I need this auto-update in my projects too!
Thanks for it a lot
Very nice design, the embeded bolts remind me of the prusa printers design. Also I love the joint with the diferential.
As a mechatronics tech, I did maintanance on CNCs but never really got into the assembly part. It's just awesome to see this part too.
Your designs are brilliant. Can't wait to see more
well done, great presentation
You're videos are my new favorite! Thank you
very inspirational watching your videos
Very nice!
Incredible
Very cool! Keep up good work!
Engineering marvel! You have really made it verry far!!! 💪😊👍
Thank you a lot. It is pleasure to see such comment!
Nice video !
Your work is always amazing, but you have out done yourself this time. This design is a real step up! Looking forward to seeing it move under power...
Super cool video, keep it up
Great, energetic, simply awesome.
I love how he says here "hye hye hye" don't get rid of it.
I want to find the person who disliked this video and ask him why?
My mind: don't need it
My heart: do it, you will learn a lot
My wallet: shut up both of you
I was thinking exactly the same. The moters are already 100 euro each x 7
@@markpieterse exactly I want it soo badly, but I nether can afford it, nor do I need it. But damn, its more beautiful than a lamborghini!
I've started by just printing the parts, once/if I get far enough, I'll look into bearings and screws.... Then maybe one day, motors
P.S. printing the gears is incredibly rewarding!
Awesome video. When I subscribed to your channel (long time ago), your accent used to bother me, now I actually like it hahaha. Thanks for your time! Please keep posting more and more robotics content
I hate to break it to you but I doubt those fans are going to do much. With so much restriction on the carbon fiber mount and with tiny pass through holes you won't get much airflow to the motors. Additionally, outrunner motors like that are best cooled with the airflow going through the coils. That is why the rotor (part with magnets) has only thin spokes supporting it. Inrunner motors have to be cooled from the outside similar to what you have setup now. Long story short; cooling fans need to have a direct supply of air from the environment with as few bends in the flow as is possible. If you are using your motor at only 1/3rd to half maximum power allowable you shouldn't have any cooling issues. Hope this helps!
Thanks for sharing your work!
Brilliant!
Just phenomenal. 👏
Robotic arm design is beautiful. 💪
I am subscribing for future viewing. 👍
Pls keep such great videos , cannot wait for next one ....
Embedded Nuts
locked on tight to my long bolt
Outstanding work!
awesome stuff, can't wait to see the capabilities it has, thanks guy/s
Your design skills are incredible, your 3D Printer too. What a fantastic job... Please consider to put a camera on your robot arm closing the loop between the arm and the objects that it will handle. The camera also gonna to increase the functionality of the bot a lot... Thank you man! 🙏🏻
great job
Thank you!
Very hard task and complicated mount parts . Congratulations.
Inspiring work as always! Thanks for sharing!
The bump in content quality is very good ! I only hope the projet will work as much as you put effort into it !!
Very impressive 👏👏
Amazing
Thank you for sharing this ♥!
woah, cant wait for the next one!
Great work!
Waw, quite an achievement ! Great ingenuity and a great job !
Excellent! Keep going. I hope someday I can build one.
thank you. great design and build!
Awesopme work and awesome video.
On a side note, if you were bald and yellow you'd look exactly like Homer Simpson.
Nice !
Amazing! Very talented
I hope you eventually sell a kit so that other people can have fun building your robot arm :)
Sir, this build is looking like an epic one already. Well done so far! Keep it up :-)
In the video's sped-up sections, I can hear your 3d printer going in the background, but it sounds like a dialup modem due to the speedup. :D
Btw, soon I am going to make the follow up video about this project.
@@Skyentific excellent. I'm subscribed and got the bell thingy so i'll see when it happens. :D
Это 1000 раз интерестнее чем фантастический блокбастер.
if you make a course, I will buy sure. A course of electronic, robotic, control, etc
another video I can hit the like button on before I even watch it.
Прикольный Вы дядька и проект у вас классный! :)
Спасибо.
@@Skyentific откуда вы ?
I want that mirror!!
🤯 _kuka left the chat_
:)))
I was looking for a video on your channel discussing which 3D printer you use, and didn't find one. Could you post some information with tips and your recommendations as is seems your printed parts look very nice. Maybe even make a video specific to this topic. Thank you. I just stumbled upon your channel and did a marathon binge to get caught up. I am very impressed with your work and presentation of it. Thank you again!
Awesome...!
That's scary-good! Thank you!! :o)
Is your printer enclosed, because aren’t you printing abs and things like that which require high temperature? Could you make a open printer abs printing setting? Great videos by the way
I think he uses PETG.
the best chanel ever :,D
this is absolutely amazing! I really want to build a robot arm now, but I don't know what to use it for🤣 maybe cinematic videography? maybe automating my 3d printer? help!
Канал просто находка. Но не покидает ощущения что автор русский:)
значит, у меня не одного такое ощущение.
These parts are amazing! Could you go in the detail of the CAD work for these?
Subscribed! I bet you see a lot of Skyenet jokes. I for one, welcome our robotic overlords.
There is always a lot of intelligence and experience in your designs. What is your background ?
Hey, i would recommend to search for "M2 M3 M4 M5 Female Thread Knurled Brass Threaded Insert Embedment Nut for 3D Printing Threaded Heat Set Inserts " on Aliexpress. It Would a lot simplify your designs and enhance look of your robot parts.
rubber and silicone shrouds water proofing
Super cool to see. What kind of bearing is it you're using at 0:30 ?? I am looking for some of those bearings. Maybe not exactly that size, a little bit smaller, with an inner diameter of 70mm or so. I have found a few in my own country but they are crazy expensive, too expensive for experiments. I couldn't find them on Aliexpress and it's really hard to find correct bearing sizes with all the different numbers they are given.
This is a slew bearing. It can take load in any direction and it is widely used in robotics. This particular one has inner diameter of 100mm and it is called ra10008. There is also one with 70mm inner diameter. It is name ra7008. 08 means width (8mm). They are quite expensive. On Alibaba you can find them for around 100USD.
@@Skyentific Wow, thanks for letting me know about this! I see, the prices are outside of my hobbyist range, but now that I know what they are called, maybe I can find then 2nd hand or on the scrapyard. I am making a polargraph wallplotter (v-plotter) and need three of those bearings. But the idea of the project is to reuse most parts I find and even try to reuse the materials like old pens and paper. Maybe I can find some old robot parts. The search goes on! :) I had never heard of slew bearings.
Great work! The parts seem to fit really accurately do you use PLA for printing them?
Класс! Ставлю лайк!
Don't all the parts fit together yet? I can't wait to see it!!!
can you please provide a link to large slew bearings that you are using. That would help a lot.
Wouldn’t the printed gears introduce a lot of backlash?
I was thinking about the same thing but the print quality of those parts are from heaven unlike my printer 😂
Helix gears would be much greater... May be an upgrade for future...
Yes they will
That why you make them out of chemically treated wood, and heat and compress them to be as strong as steel!
berat han even perfectly machined gears have backlash
Hey have you heared of harmonic planetary gearsets? with those you dont need bearings for the planets and you get insane reductions without any backdrive. I had built once a 2 stage version with 1:10000 (not that you need this insane reduction, but a single stage gives you easily 1:100)
What kind of 3D printer do you use? And which slicer? Thanks for the great content!
Great question. I use Prusa i3mk3s. And I am very happy with it. I use Slic3r to slice parts. I don’t really happy with this slicing program, but it is really well tuned for Prusa printer. I think I should try Simplify3D. But I am not ready yet to invest into it. And, unfortunately, I don’t have a good profile for Cura for Prusa. Btw, I use PETG plastic.
Can you show us how you design the gears (specifically planetary gears)?
fantastic! any chance you can share where you get the slew bearings? thanks
no, three!! ;)
Лисен ту ю хеа)))