A small Raspberry Pi robot arm I made over the past few month. The robot arm is made of: · 4 Dynamixel AX-12A servos · 1 Raspberry Pi 2 model B · 1 Raspberry Pi camera module · 1 Electromagnet on the top · Aluminum, wood · A small …

Nice arm Very cool project! I like the fact that you implemented a sinewave pattern for acceleration. Servo are often doing brutal movements and your arm movement are much more elegant. I was quite surprised in your last video however, why is there such a lag between your moveme…

Lag in movement in the 3. video Hello Drake, You are of course right. The Raspberry Pi is a powerhouse and even I must admit that I probably should have done the position following in real time. Here however is the reason, why I at the time considered this the best solution: I r…

That make sense That make sense. :slight_smile: Especially if we consider this step as a transition to the camera processing (when the robot knows exactly it’s destination)

Awesome! great project buddy - can’t wait to see how it develops!

Nice design You did a great job on the smooth movement of the servos. That is hard to do. That is cool you did your own video processing stuff. OpenCV makes it a lot easier. Thanks for sharing. Regards, Bill

smooth movement of the servos Hello Bill, Thanks for the comment! The smooth movement actually wasn’t that hard to do. The reason beeing that I used Dynamixel servos, which provide an easy way to control not only the goal position, but also the current speed!

further development Hello craighisset, Thanks for the comment. I’m actually not sure if there will be a “next step” for this project. At the Moment I’m giving the ancient quest of “making a Servo from a geared motor” a try. ^^

Construction details A super project!. As someone who has no mechanical skills do you have any construction details? Many thanks BD

Construction details Hello BD, The construction is quite simple. Just go to the DIY center of your choice and buy some aluminium profiles. Some kind of quadratic profiles will do the job. Then you need a drill. And 4 Dynamixel AX-12As. Just drill some holes in such a way, that …

Can you expand on how you Can you expand on how you smoothed the movement? In laymens terms? How can I reproduce or learn from your code to implement the same smoothing in my own dynamixel motors?

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Raspberry Pi Robot Arm with simple Computer Vision

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danielsimarmata April 13, 2017, 10:41pm 15

Hello, sir
I am interested

Hello, sir

I am interested for robotic pack, if there is source code and the stages of the process. thank you