Chris, this is truly unprecedented! I have been admiring your work for a few years now. This new version is even more impressive. But the thing which I am so impressed with is your desire to give your countless hours of top quality work away for free. What a difference to the unrelenting money grabbing going on today. I wish you all the very best!

Thanks for all the great work Chris! Looking forward to building an AR4 once my current CNC build is complete.

It's been a while since I've heard an update on the AR series! The offset calibration is a very cool feature to see and the Teensy is a fantastic platform.

Been following the project since AR2 release and you still keep amazing me! Thanks for all the effort and hardwork you put in this project. 🙏

Chris , nice update. I purchased the Ar3 kit and had my son an mechanical engineering student and a group from his school help build it. I was shocked how little hands on these students got in the program so it was a great project to get them some common sense real life skills. I built it to use for a particular process for my company however the processor wasn’t up to the task. I am happy to see the new board and look forward to updating my robot when time permits.

Thanks again for all of your hard work and your willingness to share this project with the world.

You're a LEGEND, Crhis! Thank you for sharing your work and expertise with the world for FREE!

I just placed the order for the AR4 stepper kit. I'm so grateful you are doing this and providing the aluminium and hardware parts for what I assume is very close to cost. Thank you Chris!

Es un verdadero gusto haber llegado a este canal de youtube hace ya casi 4 años y haber encontrado a alguien muy profesional, con el corazón tan impregnado de ganas por hacer algo por la comunidad y con tanta pasión por compartir sus conocimientos, pues el conocimiento es universal. El gran Marco Aurelio dijo "Hemos nacido para colaborar, al igual que los pies, las manos, los párpados, las hileras de dientes, superiores e inferiores. Obrar, pues, como adversarios los unos de los otros es contrario a la naturaleza". Sigamos el ejemplo de Annin y continuemos en el camino de la naturaleza. Exitos y muchas gracias por toda esa pasión y aporte a la comunidad, Me llena de emocion haber llegado a este canal.

you are incredible Chris. It is an unbelievable project and so generous to share it free with the world. This is fantastic for education with kids and teaching. Amazing what you have done. thanks so much for being so open

Ive been wanting to get nto robotics for years, but without formal education or money, I thought it was just a pipe dream. Thanks to your project I feel confident enough to give it a go. your manual is so amazing. youll be getting an electronics order from me very soon thank you for all of your hard work Mr Annin

AR1>AR2>AR3>AR4 and more to follow, this is awesome, Its like trying to beat your record, an desire to do better.

I really appreciate your work! Will start building one after my CNC is finished.

Hi Chris, I just stumbled across your channel and content. Immediately subscribed!! I too have 30 years experience with ABB, Fanuc, Kawasaki, Yaskawa Robots. Unfortunately I have been forced into Early retirement. Your work is truly amazing!!!! Absolutely love the 7th axis rail!! Cant wait to see more!!

Your work is incredible. Thanks for sharing this with us. This is the only way we could ever own a industrial style robot.

Really excited about a world of sharing creations freely! This is beautiful 🤩.

Hi Chris, this is actually a GREAT project! Congratulations for you skill an patience to write a comprehensive documentation (fundamental!). I'm planning to purchase a kit in a few months when I'm over with other chores!

It looks completely stable, that is amazing work!! 🎉🎉

Wow, what an amazing gift to share, thanks!

Chris, I admire you. You are an inspiration to many, including me. Thank you so much, you are doing humanity a great service :)

This is excellent! Thank you for sharing your hard work.

You are incredible Chris, I look forward to building one of your designs and your software looks very user friendly in comparison to other industrial robots.

This is so cool. I've been wanting to build one of these for a while. Maybe it's time I stop procrastinating.

Amazing work!

Chris this is amazing work! Hoping to finish up some other projects by January to make space on the bench to begin my AR4 build come February. I'm going with the full aluminum kit. Cheers, Cletus

I am definitely going for this project one day. It gets kind of expensive project but it inspires me so much.

Thank you so much for sharing this extraordinary work and congratulations!

Thats amazing! Thanks for all the hard work.

Looks awesome! One step closer to robots that build copies of themselves :)

Hi Chris, I've just recently found this and look forward to trying to build this with some spare time. Your documentation is amazing. Keep it up!

This is awesome! I fancy building my own robot so this is an awesome resource!

Seems daunting even for a skilled programmer. This takes money, time, and knowledge.

Amazing! I would love to start and try building something like this over the winter break!

Thank you, such great work and documentaiton. Really appreciate all the effort.

I need one of these so bad!!!! I'm literally saving up a hundred dollars at a time every two weeks!!!

The gods have spoken .... again. THANK YOU

This is truly amazing!

Awesome as always! I need to build one of these at some point.

your work is amazing

This looks great. Thank you!

Great work! and Thank you for sharing your hard work, wonderful !!!

WOW, amazing job, thanks so much!

You are the MAN!

WOW; what a great project. i think i have to build one - maybe as a video series ;)

Impressive work ! Great ingenuity !

Cool project!. I think I will try this.

So impresive

Chris Annin your work is a treasure greets from colombia

I am trying to convince my management to go for this rather than the universal robots we already have. This seems so much nicer to use as an engineer/software developer. This is amazing.

Very cool. I am excited to learn more about this architecture. I have a robot that was saved from the scrap yard that I will do some experiments with using the software and wiring basics.

Wowwwww! You are a genius!!

I love your project! Thanks so much. I follow you since the mark 2 of your AR :)

You’re a beast! New goal is to build one of these

brilliant …. thank you CA

wow, I am so impressed. I will definitely buy a kit in the near future

Stellar work Thx

Thanks chris. Hope time allows me to build one and contribute. awesome work. Can't thank you enough

AR4! Awesome! 🤙🏻

Amazing jobs chris

What an interesting development

Great job! Wow!!

Well done!

great work . beautiful machine

Nice work as usual. 😀

Wow Awesome man. I'll probably buy one just waiting for servos to get back into stock.

Great video thank you for sharing

Good job, bro! I hope, one day, we will see the "AR-1000" with 1Ton payload capability. =D

Uhmmm. Someone knows a ton of shit and yet sounds so sincere...I have found a hidden Gem wow.Thanks Alot!!!

Thank you so much 😃

WOW ! i was in the process of printing the parts for the AR2 and i was getting issues not knowing if the position of hole where going to match the position of the servo. Now that you said there a link to get the full kit for the servo I think i will just get that going and continue on.

Super impressed. Wow.

Amazing work

Great to see the addition of circular and arc moves. You mentioned splines, do you have plans to add this capability? Any thoughts on how path accuracy and repeatability compare with move to position repeatability?

I am here to thank you, and give you a new subscriber sir

really appreciate it

my god this is amazing!

Hello Cris! I send you the Like N° 1000 in this video!!! Truly an amazing job! My congratulations, I don't know much about this but I'm going to try it because it was always my dream to have a robot and at 36 years old I think this is the opportunity! I wish you the best!

Awesome project sir....waiting other robot make tutorial too(DELIVERY ROBOT_AUTONOMOUS_USE LIDAR/GPS/COMPASS)

Awesome!

Awesome project Annin! I’m building this to attend the 3D printers in my studio, which I think would need visual processing solution attached to it. Would you please recommend resources in visual processing? 🙏🏻 and is there a possibility of adding an eighth axis for vertical motion along with 7th axis horizontal motion?

Hey amazing project ^^ Great to see al your work come together in such a nice package. Do the reducers have backlash? If so how many degrees?

im following you for some months already.. you are an amazing personallity!! what a great work to share your knowledge with us.. im from Brazil, found you on internet searching for a good diy 6 axis robot.. and i already emailed you, for my surprise, you replied!! ;-) i will have my ar4 for sure and will contact you to learn how to place a tourn table instead of travel track on mine.. i have a initial idea, just need to learn perfectly how to integrate on your software as I did not start to deal with it yet! thanks a lot

Amazing!!!!!

Insane

Thanks you,

Hi Chris, looks great! Do you have a changelog of the AR4 from the AR3 with belt upgrade? Are the only changes the electronics, motors, and software? Thank you

Good job!

Hello,Chris.Thank you for sharing. I want to know how you connect to RoboDK,and there is a "drive" option in "connect" interface, how to define this drive file?

i tihnk this will be my Christmas present to myself. How are things looking on the component availability side? Like the motor kit for example would it be feasible to order and get all of that shipped in this lifetime?

professional. just that.

Hi Chris, I'm using AR2 software with arduino mega as you said for me in another commentary is working very well thank you By the way, but i would like to know how can I save my files, and which file I can save my projects with the position and all work the robot have to do. Thank you again.

brilliant

Great job！Chris Annin

Hey Chris (or Mr. Annin if preferred) I'm an electrical engineering student from Cologne, Germany, and about to write my Bachelor Thesis ☺️ Since it's gonna be my project, I'm currently tinkering on my own radio controlled version of a KUKA IIWA or KUKA Quantec. For that, I'd like to buy the set of an AR3 or AR4 and want to set it onto a chassis with Mecanum wheels. Now, in order to create a smooth movement of all the various axes, I'd need to link the chassis control to the AR control. Since you're the Designer, I'd like to ask you: Is there any kind of machine-to-machine interface in the ARs code? :) Sure, I could just run both of the controls on one and the same Controller, but then I'd have to re-engineer the whole code. Also - over time and later in my Masters Thesis - I'd like to turn my knock off KUKA from a RC vehicle into an autonomous. Especially then it would be nice to *not* re-engineer the whole code😅 Thanks in advance☺️

Oh I am so making this

Nice.

Can this AR4 be programmed to run a file when when you press a button/switch it will run that program without having to run off the program? Also could you control the robot by a wireless controller? If so will it be able to record the motion to repeat it later on its own, as in making a program file to repeat? Thank you for your time.

Completely blown away mate, ive found your channel researching the build of a 4/5th axis for my self built cnc router and I now have a new project hahaha thank you for this. Can I ask you how rigid is the arm... if you mounted say a dremel or similar on it could you make it carve timber? I know dimensionally it would probably not be very accurate but more for artistic pieces, you would probably need to program a way for it to probe the stock before it starts carving too or is the learning you were showing how thats normally done? Sorry about all the questions and please keep doing what youre doing!

is there an upgrade path from AR3 to AR4?

I can't thank you enough for making this amazing project open source. 🙏 By the way, any advice to help me understand how to solve the inverse kinematics? I'm good with a 3-axis robot but a 6-axis is just completely unknown to me lol And the books I've checked just break down the direct kinematics.