5.5 foot tall humanoid robot that walks and talks.
56 servos controlled by 3 ezbv4 boards working together over wifi.
On board power supply lasts 1-2.5 hours depending on activity: 7.4v 5a lithium battery for logic and smaller servos and 11.1v 10.5a battery for everything else.
DOFs? all of them
Been out of the ez-robot loop for awhile, and I have to say I like were things are going with synthiam. Plan on taking full advantage of having an onboard pc, and will be converting to arduino in near future.
Very interested in bipedal gyro control and scripting if anyone has advise on the matter.
here is a link to my project design on grabcad: https://grabcad.com/library/hal-the-robot-1
By cliffordkoperski
— Last update
Other robots from Synthiam community
Williamk's Inmoov
Humble beginnings. Havent gotten beyond testing the movement of motorized pieces as of yet but everything is basically...
Nallycat's Cog A Social Interactive Robot
Hi I have been printing the files that were generously supplied by Mickey666mauss for his creation of Zoe. I was...
Steve's Marcus The Expressive Android
Marcus the Android with life like expressions and movements modified from a Wow Wee Elvis robot. The robot gets a...
That’s some great dampening. But only Disney would build cartoon flexible rods to build robots only to dampen them in software.xD
Good catch Jer.
I have done theoretical studies on analog control systems many years ago at the university. The oscillograms I have seen in the Disney clip are typical for a feedback system actuated by a "ramp" command. The dynamic behavior of any system depends on its mechanical parameters (inertia, elasticity and friction) and on loop gain. It's the same thing that happens in an electric ciruit , with inductance, capacity and resistance , energized by a ramp or step signal. So , what can be done to increase stability and achieve good behavior in a highly oscillating system ?
Wow. I am crazy impressed, I don't have words.
I see we both use metal endoskeletons and a lot of linear actuators. I currently do plastic over the metal. I love everything about your build.
I'd love to get your input on my Ava project if you ever have the time. Mine is about half the size of yours and so the hands are not as functional. I am doing a lot of 3D sensor and AI stuff. I am contemplating designing some linear actuated legs for my bot in the future (using 12V heavy duty ones from Actuonix) Mine would be about 5 feet tall with legs. For now, I am using tracks and a 4-way articulated core/hips. About the only possible advantage I could see with my mechanicals is that my bot can lean over and grab things off the floor without falling over...you can obviously do a lot more with legs...like stairs.
Once again, truly awesome work. I hope to be able to meet you at some point if you ever have time.
Regards, Martin
Totally forgot about that one, nice you are gold digging thru the archives!!
Man, what a build!!!!
Oh ya, I remember that one,very Terminator style Impressive for sure!:D
@cliffordkopersky Have you made some enhancement in robot walking since 2019 ?
I've spent most of my time up till now researching design ideas and tooling up my shop with new machines for HAL REV B. Building a large cnc lathe has been consuming a lot of my time recently. I'm pretty dead set on using Turnigy brushless pancake motors with a timing belt pully configuration this time around. Controlling these motors closed loop with rotary encoders should give me the combination of speed and accuracy needed for bipedal walking. Probably need someone smarter than me to figure out gyroscope control when the time comes... But that's were things stand right now, really appreciate your guys enthusiasm and interest in the project and will continue to enjoy seeing what others come up with in future posts:)
As a huge Terminator Fan it will be interesting to watch that thing walking down the street 1 day giving people Frightened heart attacks!:D