Cheap and Simple DIY 3D Printed Robot Arm

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This is the second part of the building the Cheap and Simple Robotic arm. I am really happy with the result. Of course, there is a room for improvement: mainly write better software. Files are available through my Patreon.
This video was sponsored by Brilliant
Special thanks to my special supporter: Benjamin Bacon
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#DIY #robotics #3dprinted

[@Skyentific]

Keep exploring at brilliant.org/Skyentific/. Get started for free, and hurry-the first 200 people get 20% off an annual premium subscription.

[@soscilogical1904]

Good work skyentific.

[@ronheiland6250]

Can you make a video showing how to use this robot to play chess? Wanted a chess robot for my birthday. Nobody sells them ya know, so I gotta make one.

[@MrTrilbe]

Now to hard mount a keyboard and add starting the python script to the robot arms calibration script, Also adding in the new Raspberry Pi Camera 3, OpenCV and use it to film future videos keeping you perfectly in frame with face tracking, oh and some voice recognition, that way you can use key words from the script and saved locations to automatically change camera angles

[@MrAshadams]

Stack it baby, love it.

[@conorstewart2214]

To speed up the calibration you could do something similar to 3D printers, they start off moving fast until they hit the limit switch, then they back off a little and then slowly move in again. That would allow you to speed up the calibration greatly whilst still having the best accuracy.

[@FlavorLab]

Excited to see the updated robot arm!

[@DeKempster]

Great job! The movements look way less floppy than I expected from the thumbnail

[@MichielDeJong56b5g]

I see what you did there with the colors :)

[@TheAstronomyDude]

Good looking arm. And it's very quiet.

[@egemens]

this is so good. looks great and moves smoothly.

[@wallyhulea219]

Cool. Now give it one of those touchscreen styluses, so it can interact with its own touchscreen and keyboard.

[@conorstewart2214]

Controller choice is absolutely down to personal taste but I am planning on building one using joysticks that also have a twist axis, that way you can have 6 different control axes with just two joysticks. You even get ones with added buttons on top. Maybe that is something that would be useful for you, although it would be a mini project in itself.

[@DMonZ1988]

great to see you! beautifully designed as usual.

[@whatthefunction9140]

Love this design!

[@chrisr236]

I'm new to electronics and I've decided to build a robot arm. One of the things I'm struggling to understand is how to nicely power the stepper motor, servos and pi in a nice way without having multiple power sources.

[@HDRaider6074]

mount it on a wall next to a lamp. Then have a light switch trigger the arm to unscrew the light bulb to turn it off, then screw it back in when you turn the switch on. That’d be cool

[@YunusDemir-cy1yi]

It was a very nice dyno. Can you share what the brakes on the dyno are?

[@kestans]

if you add a lcd screen to joystic to monitor x y z of the position of the tip :)

[@qouomcompany979]

Always creative

[@rdyer8764]

Another success!

[@zyxwvutsrqponmlkh]

Nothing that requires a Raspberry pi can be considered cheap. You may as well require a solid gold bar or something else impossible to source like a flux capacitor.

[@PPSRHD]

True. Raspberry pies are too expensive nowadays

[@sylpisophia5612]

great job with the upgrade. I'm always fascinated with robot arms and been following your progress religiously. I made one when I was in the university as part of my school requirement, and as such, it restricted me from using off-the-shelf mcu because I had to build everything from scratch using logic gate ics. Suffice to say, it was a lot of headache, lots of things can go wrong particularly due to noisy electronics produced by the motors that affects the logic gates. I promised my self to build another one as a personal project, but work and other life responsibilities took over. So now I'm just getting my fill by watching your robot arm (and other channels that makes robotics) 🤣 ah, such is life.

[@conorstewart2214]

I've been planning building one for a while, amongst other things like a hexapod and finishing my drones. I have had to take the rest of my uni year (4th year) out for health reasons so I think I will have plenty time now to get it to work. Im slowly iterating over the concept in my head, thinking about it when I have free time. At the moment though I am working on a small wheeled robot that can drive around and take distance measurements from a 8x8 ToF sensor and will find a way to combine that with path finding algorithms, maybe using ROS.

[@sylpisophia5612]

@@conorstewart2214 aw, i'm envy. good luck with your build :D show it off on a video if you have the time, we'd love to watch it :D well I would love to watch it, it is the only thing I can do atm while I'm in the middle of other projects 😂 I'm always fascinated with RC projects. I've followed a couple youtube channels who are into RCs.

[@RoboSidekick]

yes, life get's in the way, doesn't it? how did build built robot controls on logic gate ICs? this sounds insane.

[@Marci124]

I've seen multiple iterations on this 3D printed reducing gearbox concept and I think yours turned out really well, it's on the high end of the spectrum.

[@3dprintwiz378]

Nice job. What is the payload capacity of the arm at fully horizontal position?

[@c172jeff]

I built this arm and have been struggling to use it with ros2. The problems come from it not having encoders. I built my own arduino driver that can basically accept a position [1000-2000] and send/move the joint(s) there. I'd like to also get velocity and torque. If I were to buy 5 RMD X10 actuators, is that overkill. What 5 actuators would you recommend? I would have to redesign the arm. I'm just wondering what 5 actuators fitt the sizes used in this arm (close to it) and have lots of power. I note that my arm is not super powerful. It is definately not fast. I'm hoping to have an arm that can swing about like its on a lot of caffene. Thanks

[@SA-mj6uj]

if i put Gcod in this program is the robot going to work as printer

[@der_kaputte]

Great, I probably will build comparable arm with NEMA 24 motors. But will your arm be fully implemented into ROS/ROS2 environment?

[@powerHungryMOSFET]

What plastics are best for robtics ?

[@damianwiecaw492]

Why dont you implement inverse kinematics, as far i can see you are good engineer and it would be a piece of cake for you! Robot would gain more human like inteligent movements

[@micheytom803]

cool

[@dondywondy]

Great robot arm! Can we get any 3D printer files, material list, software to build our own arm? Thank you for making and posting your videos!

[@stevdodd7515]

Could you please give me touch display details?

[@pecilijevelicanstveni4973]

Very well friend! Thank you for the videos! One question. On what 3D printer you printed the parts? It seems to me that they are wonderful! Could you make one video about it with the parameters, materials etc.?

How is the special operation going?

[@Димон_Медведев]

Мужик, ну ты точно русский. У тебя манера речи русская. 😅

[@jamespray]

Amazing work! Do you plan to work out an inverse kinematic control scheme where you can directly control effector position rather than having to control joints individually?

[@Skyentific]

Thank you. Yes! I would like to make complete software with inverse kinematics.

[@cezar17negru]

@@Skyentific it is going to be challenging but it is a must to have a credible platform for your robot!

[@freakinccdevilleiv380]

Wonderful as always. It would be cool too to use IK and have the end effector go up down front back and sides with the joysticks.

[@MrFranklitalien]

thank you so much for sharing this, hugely inspirational

[@yokomortel6479]

Can’t wait to show my son!! Thank you for the update! 🙌

[@i-make-robots]

Nice! Instead of printing hours, how about filament-used kg ? :)

[@jstro-hobbytech]

Awesome arm. I'm waiting for all the parts. Could I use a jetson nano instead of a pi? I also sent you a message via patreon quite a while back. It would mean alot to me if you read it sir.

[@navysnow5618]

Did you ever build it?

[@Heisenberg2097]

The title screen screams 'SELF-CONFIDENCE' so loud... IT WORKS!!! Sounds like you never expected this to happen yourself.

[@walrusrobot5483]

I like how instead of admitting how painfully slow this robot arm is, he just speeds up the video.

[@BektemirMamatkulov]

Does the patreon have the source code and parts needed?

[@Mrpablotortas]

can you make a video about stepper motor brakes?

[@NiksSofa]

I want one :D

[@stefanguiton]

Awesome!

[@fredericbenzaquine3510]

Thought you installed thermistors on the Motors no ?

[@RoboSidekick]

i think he mentioned before that thermal switches turn of at 50 degrees C. he was checking what temperature is on motors currently