Chris you have done an incredible job. This is a life’s work to be proud of.

Its so inspiring that you dedicate so much time to give this for free so others can use, and still adding updates. Thanks so much.

Yeah!!! Another AR4 video! Thank you Chris! It's nice to see you refining and simplifying the design so that it's easier to build.

This looks so strong. Love that you can get some serious motors into it without making it cost the earth

I understand what you’ve done here. It’s extraordinary. For one guy to finish this as a DIY kit goes approaches genius on several levels. What a wonderful learning experience for those who are fortunate enough to be involved in assembling and then experimenting with this. Thank you.

This is fantastic Chris. Thanks for sharing your hobby.

This project is so amazing! It makes me so happy to see a talented engineer like you making such a big impact on students, kids, and even industry. Nice job!

Thanks again Chris for your contribution to the open source STEM community!

I can remember when i was searching 5 years ago for this kind of robot arm... and the tolerances were not good enough or the prices too high... you did a really great job to give even private people the possibility to use it for their daily jobs or small companies.

I think this is my first robot project where I can start~ Thank you for your amazing project.

Will always remember this guy

This is mind blowingly cool - I'm building the Arctos arm right now, but this might be my next foray into arms at a later date.

Man this is the coolest thing I have seen. Thanks so much for sharing this with everyone. This project is actually very important. With AI getting better and better we will need open source robots for people to be able to start businesses so they can keep up and stay competitive.

Thank you, Chris! Following it for a long time.

Thank you for your hard work on this project.

Building one right now. Thank you so much for making this open source

Just a few days ago I was wondering why there wasn't an easier way to get dishes from the sink to the dishwasher and viola! I'm glad someone is working on that problem. Thanks for sharing your work. If I ever build a robot arm this looks like a perfect fit for the types of things I would do.

Amazing! This is by far the best open source arm assembly I've ever seen. Your knowledge in the field clearly shows in how refined and solid this is. Can't wait to try and build one!

This is amazing! Excellent work. This is way better than the goofy arms people build using hobby servos.

this is the coolest thing on the internet. planning on ordering an aluminium one for a welding project !

Awesome to check in on this project every once in a while. Good work man!

Good man - this is wonderful. Well done!

Great work! Thank you, Chris for sharing this!

WOW - this is incredible- I like that j5 mechanism, going to seriously do some looking into this, great job!

Крис! Ты крут! У тебя потрясающие роботы!

This is one of the best projects I’ve seen in a very long time. Thank you so much for doing all the work to create this. You really make a difference in a lot of our lives. Bravo!

Wow. Absolutely incredible. I am just getting started with robotics and can't believe such a wonderful resource exists. Thank you sir!!!

I've started programming Fanuc robots for work and after seeing how fun they are, I had the thought that somewhere somebody has to be making 3D printed desktop versions of these things. I didn't expect to find someone taking it to this level though, nice job!

you are actually a hero, I think i will be attempting an automation project with this 🙏

Endless thanks from Turkey. 🙏

Wow! Thank you for sharing. I'm just starting out but I think building this for myself would help me immensely! Thank you again! Amazing!!!!!!!!

I'm glad I landed here. I'm looking for all the puzzle pieces to make a welding robot

Will look into the kit. Nice job. You definitely show your skills and love of the profession. Have a good Thanksgiving.

Your great Chris! Thanks for new update ... hope I will have the time to rebuild your great creation!

first of all congrats to you for building this wonderful project. Your projects are very helpful to learn. and thanks a lot for sharing your knowledge and ideas for free.

Awesome update!

Just stumbled onto your channel and WOW!!!! Your robot arms are impressive to say the least. I have a project I am just starting that will be using an arm. Depending on how it goes I hope to build something like this robot arm. I am subscribed and will be watching for your future vids. Thanks so much for sharing this project.

Very inspiring!!! Excellent work. Thank you for sharing.

appreciate your hard work. Im going to start robotics school in a couple days and im going to make this to help practice .

awesome. I might build one my self one day

Congrats man!

This is a masterpiece for DIY's guys. Thansk for share your job!

Chris, this is fantastic!

Another Great Robot from Mr Annin.

Legendary work. Thank you!

Awesome! I've been following the AR project for a long time, I'm glad you have continued improving it. It looks incredible. I'm designing my own robot arm, although I want to create a company with it

Man..your are freaking AWESOME!!! What an oustanding job.....!! Congratullations and thank you form sharing..very informative and inspiring...

Waw, amazing result! Great ingenuity!

Nice project Chris!

Awesome project! Freakin' awesome!! Thank you!

I, as an engineer, really admire your work! I am also jealous because i used to work on kinematics and then i started to design a programming software but it was too difficult and i didn't have enough money to build a robot because of my unemployment. Now i have money and more knowledge but no time :D But i am so happy for that someone actually does this. Best wishes!

Huge respect!

So cool, this looks like an engaging build 😮 I've been practicing some languages including the Arduino ide and Python for robotics fun and a career change.

Amazing work, thank you for your contribution

Looks great Chris!

Thanks so much buddy! I dream of building something that complex :) GOOOD JOB! :)

Absolutely awesome 👏. Well done mate, your robot arm is so cool. 💯 👍. Cheers Aaron

🎉 Amazing project!

Thanks.Chris

Truly an amazing work

This is so awesome man. Thank you. New subscriber ✌🏻

woooo! I think your work is very meaningful! Thank you very much!

Very, very cool, Chris! I am still experimenting with your software on my non-AR4 robot. My biggest stumbling block was the Denavit-Hartenberg convention that differs from my robot to the AR4. Can you recommend a way to adjust the DH convention parameters? At 7:30 in the video, you mention the kinematics. Maybe it can be done on this tab? I tried making these DH changes in the C++ file that runs on the Teensy, but didn't have any luck. (Introduce other errors, like out of range etc) I am super looking forward to taking another look at this latest version. Also, the gcode feature is super important. This could really bridge the gap of CNC & robotics concepts, which are not all that dissimilar. THANKS!! so much for all you do!!! I know what I will be doing this weekend.

Very good project, well done bro

Nice work, hope you are working on welding applications, like arc motion welding, zig zag welding motion, statching motion

Holy shit! Very nice Chris!

Rad!… Where it Goes….It Goes -Awsome- !

super cool. a year ago i print everything out but never finist it. i hope that you make the smallest stepper a to a servo

Great work like always Thank you man thanks a lot

Wow! I am going to build at least one of these!

So cool!!! Must try

This is awesome!!!! Thank you soo much!!!👍🏻👍🏻👍🏻👍🏻

Inspiring 👏🎉

how perfect job for students. buying complete robot is too expensive even small one and program too. From Korea

wow incredible iv been redirected to this vide via one of ur comments im just wondering if u wanna go the cnc/3d printer way where u would make a slicer/cnc gcode generator? I know that is an extremely hard field, but i can see ur product surpassing even industial machines!! Keep it up man :)

Thanks Chris, for your efforts. Hope to take your robot for other level such as increase size a little and increase payload at least 3 kg so can be used for a small industry application such welding

You are awesome!

I'm so making this.

it is amazing

Very cool man

Amazing work Chris! I have all the parts for the AR4 MK1 but I never got into building it as I got busy. Real soon i'll have more time on my hands so i'm wondering if you have a list of the different components used in the MK2 so I can get them individually to make the MK2 directly instead with the old Kits

I tried to post this comment yesterday but I think it might have been eaten by spam filters as it included web links: Do you have a list of changed parts anywhere to upgrade from the AR4 to MKII Chris? (I can see the EG series gearboxes are available separately from StepperOnline) My AR4 build is mechanically complete but I've been injured and unable to do the wiring. Finally recovered and was planning to do the electronics in the coming months. The new compact enclosure looks fantastic! It's been so interesting and exciting to follow your progress over the years. Having compared the stepperonline kits I can at least somewhat answer my own question for upgrade parts: J1 Gearbox - EG24-G10 J3 Gearbox - EG24-G50 I can't find the J4 one though, as their Nema11 gearboxes only have ratios listed of 10, 50 and 100:1 Also the new compact power supply - LYD240900- doesn't seem to be listed anywhere, but at 24V 9A with a barrel plug that shouldn't be too hard to find elsewhere You've also mentioned in another comment on this video that upgraded drivers are required, as well as some other electronics kit components: "You will need some 20awg red/black wire, USB keystone jack, Micro to C USB cable, 5.5mm DC socket, rocker switch, and 40mm fan. (see the MK2 manual BOM for details)... The AR4 MK1 motors will all work fine for the MK2, the biggest difference is the drivers. You will need to purchase (3) DM332T drivers and (3) DM320T drivers from Stepperonline."

Really nice

So cool.

Hi Thank you for the awesome project. I have some question Is it possible to use this robot to etch PCB? Something similar to the drawing in the video but using spindle instead of the pen. Is it possible to use it as a CNC machine? Can use it for accurate tasks if I print the alloy parts using carbon fiber nylon or something even harder? Thank you so much

NICE

That's some remarkable $hit! Can't wait to build my robot army!

Awesome work! Does the Gcode only work in a 2-axis plane or will it work in 3D? I'm glad the physical robot hasn't changed much or I'd have to build another one from scratch!

Hello! You did a good job, congratulations for your effort. I would note that, I think it would be very useful to be able to add a real-time simulation part in that software. Thank you very much!

amazing

Hi Chris, sorry for many comments, please inform how will adjust the joints steps in V4 without "Jog Joints in Steps" option same as V2

So cool, I want one, even if I not have time to play with it

Hi Chris. I'm a farmer in Michigan using your robot for some machine vision tasks related to my conifer operation. Thank you for releasing this open-source project. I purchased the Hardware and Electrical kit back at the end of September but have not put things together yet. I see on the website the AR4 hardware and electrical kit are the same for the MK 2 version. Is the stepper motor package the same?

This is mind-blowing!! This is not just incredible, but is a legacy… that’s the best way to describe it. One question: in a modified form, is this accurate enough to replace a desktop CNC router?

Wow just wow. I'm baffled

I would love to have the time to buid one.. Continue the great work.

so dope

Super bro 🎉🎉🎉🎉🎉❤❤❤

Wow, This is great!! I understand that the software can be downloaded and the stepper bought and some parts 3d printed but how would one get hands on all of the specific metal parts that are needed?

Chris this is an amazing project ! could you please share with me what is the accuracy or repeatability test results of the robot ? im designing my own arm and im considering to also work with planetary gear boxes , but im afraid it may make my robot inaccurate. thank you for everything you have done !