If you have a few servo motors, an Arduino, and a Bluetooth module, you could make Biped Bob as a weekend project. [B. Aswinth Raj] used a 3D printer, but he also points out that you could have the parts printed by a service or just cut them out of cardboard. They aren’t that complex.
Each of Bob’s legs has two servo motors: one for the hip and one for the ankle. Of course, the real work is in the software, and the post breaks it down piece-by-piece. In addition to the Arduino code, there’s an Android app written using Processing. You can build it yourself, or download the APK. The robot connects to the phone via BlueTooth and provides a simple user interface to do a few different walking gaits and dances. You can see a few videos of Biped Bob in action, below.
This wouldn’t be a bad starter project for a young person or anyone getting started with robotics, especially if you have a 3D printer. However, it is fairly limited since there are no sensors. Then again, that could be version two, if you were feeling adventurous.
We have mixed feelings about the BlueTooth control. BlueTooth modules are cheap and readily available, but so are ESP8266s. It probably would not be very difficult to put Bob on WiFi and let him serve his own control page to any web browser.
If Bob meets Jimmy, he may find himself envious. However, Jimmy would be a little more challenging to build. We’ve actually seen quite a few walking ‘bots over the years.
5 thoughts on “Biped Bob Walks And Dances”
Actually Bob is a pretty old and very popular design, and has a lot of clones and descendants, even on hackaday.io. I think it would be nice to at least link to the original creator, though: https://github.com/robotfreak/BoB-Bipeds
Thanks for that I knew there were similar but didn’t know the origin.
That’s still not original source. Original Bob’s were by Kevin biagini (who is referenced in your link at least) and were in turn inspired from a biped by the LMR user Protoworx who has since left the site. Though I think it’s quite insulting that neither the linked article nor this article reference the source, particularly after it was pointed out as being inaccurate
Anyone else find it really annoying that they decided to put the video at 2x and 4x speed? Why? If I wanted to do that, Youtube has that handy gear icon.
…make more clones with arms like https://www.youtube.com/watch?v=eBVVEfjWQ2s
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