Affordable DIY Robot Arm: A Deep Dive into 3D Printing and Servo Motors

To learn more about robotics, Milos was looking for an affordable 5 Degrees of Freedom (5DOF) robotic arm. Although affordable arms like this do exist, they are usually too small and only offer a few degrees of freedom. Robotic arms that satisfy all of his requirements, including build quality and range of motion, usually cost in the range of a few hundred dollars.

So, for this episode, Milos sets out to create a high-quality 5DOF robotic arm that everyone can afford!

#0:00 Welcome to element14 presents
#0:54 Overview
#2:03 Servo Joints
#8:42 Base and Last Joint
#19:19 The Electronics
#22:15 The Code
#26:44 Moving the Arm!
#29:50 Give Your Feedback

#robotics #robotic #roboticsengineering #servomotors #3dprinting #roboticsplatform #servomotor #3dprinter #robotarm #robot

[bartekoo]

the design of the robot is crazy. I recently bought myself a 3d printer and started learning fusion360. I can only asume how much time you spent on the models. MAD RESPECT

[glabifrons]

You should redesign the inner bearing race to be, well, a bearing race. You can't combine a cage and a race or you defeat the purpose of the race. Bearing cages always float freely and must be able to move with the balls, not restrict their movements. The balls will orbit at essentially the average rotation of the inner and outer race, but this design prevents them from moving at all.
Also, since this is a comparison with an existing arm, you should compare their performance (eg: lifting ability and accuracy).

[cristinatroccoliwilliams]

Upgrade and complete the arm. Really great educational value.

[raycarberry]

This is brilliant, well explained, thanks Mate.

[rpguy]

Awesome work! The whole process is great to teach to mechatronics students.

[primewoodmarcin]

10:16 "This is how bearings look like.." - you made my day, hahahahaah!

[newtlab]

Одлично објашњење, супер видео Обилићу, хвала и више таквих. 👏👍

[MalcolmCrabbe]

Interesting project. There have been a lot of discussion over using stepper motors rather then servos, and I myself would have thought steppers would have been the better choice as they tend to have more torque and precision, which is probably why steppers are used in telescope mounts (HEQ5 / EQ6 for a couple of examples), and in most 3d printers and CNC / Plotters.

[ellerycadel]

Great work! By the way - if you try to build this make sure you get 5/8 inch (16mm) marbles. There are 9/16 inch marbles for sale and they are too small!! (ask me how I know!! 🙂)

[phylippusvonhohenheim]

i can't wait for the next video about this little robot arm

[Xboxplayer]

By hacking inside of the servo you can connects cables to the potentiometer inside and read data that way, its usefull when you need to be space efficient

[solensovida]

Amazing video, bratka! Keek up the good work

[samk]

I think even if your were going to make your own bearing, just using cheap steel ball bearings in a 3d printed housing would be better, glass has a way higher coefficient of friction than polished steel

[dayworkhard]

thanks for sharing. this robotic arm looks nice and handy to make

[jozefmatus]

This is god tear educational content, thank you!!

[Mailzas]

Very impresive build. Make it bigger, and you have industrial scale robot arm. Also idea with potentiometers, very very good. I would add a button, which takes position, and set in quuee, so you just show your robot what todo, and it can repeat it.

[allluckyseven]

Pretty cool project, and very good looking robot arm as well!

[AndrewHelgeCox]

The Pocket83 channel has some techniques for sorting glass marbles to find a set that are as similar to each other as possible (e.g., you buy 100 marbles and select the most similar 10 of them).

[vizionthing]

Use bicycle headstock bearings - cheap and easy to source.

[alaaadel]

Hi i wanted to ask you for the diameters and the height because i will do it and i am missing those informations and thank you