Sarah Petkus shared the story of her robotic explorations, from her initial dream to create a field of robotic flowers to the creation of the delta Robot Army Starter Kit project that has the potential to deliver on this dream, recently crowdfunded at Kickstarter. And in the middle of her story comes this lovely story about how 3D printing proved helpful to making all of this possible….
This is when the discovery of 3D printing changed my life. Mark suggested that I design my delta’s parts in CAD and of all things…print them. I was familiar with 3D printers, however the one my art school had was huge and they charged an insulting amount just to produce tiny things with it. Up until then, I had no clue that desktop 3D printers even existed, so my mind was blown when I saw his Replicator for the first time. The usefulness of this tool was revolutionary. I could continue building my robots in plastic like I had been, but I wouldn’t have to machine my parts as if they were metal. How easy!
…One day during CES in 2013, Mark came onto something rather brilliant while we were discussing our designs over margaritas. The solution for those expensive and convoluted swivel ball links (that I had been stuck using) was to use some sort of U-joint that could compress onto ball bearings and twist freely in all directions. The idea was simple and genius.
This was an important quality because now we could completely divorced ourselves from having to source out any hobby parts. This means aside from some hardware, we no longer had to buy link joints, or cut rod in order to make the robot work. Everything was designed in CAD. Everything was 3D printed. My cost went down significantly, and at last I had the perfect model which I could realistically expect to afford building in mass… and all I had to do was hit ‘print’.
Once we mastered this technicality, it was a matter of implementing it throughout our designs. My personal delta robot went through many…….. many revisions before it became the thing it is now…
Every Thursday is #3dthursday here at Adafruit! The DIY 3D printing community has passion and dedication for making solid objects from digital models. Recently, we have noticed electronics projects integrated with 3D printed enclosures, brackets, and sculptures, so each Thursday we celebrate and highlight these bold pioneers!
Have you considered building a 3D project around an Arduino or other microcontroller? How about printing a bracket to mount your Raspberry Pi to the back of your HD monitor? And don’t forget the countless LED projects that are possible when you are modeling your projects in 3D!
The Adafruit Learning System has dozens of great tools to get you well on your way to creating incredible works of engineering, interactive art, and design with your 3D printer! If you’ve made a cool project that combines 3D printing and electronics, be sure to let us know, and we’ll feature it here!
Join us every Wednesday night at 8pm ET for Ask an Engineer!
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