[Snille]’s motto is “If you can’t find it, make it and share it!” and we could not agree more. We wager that you won’t find his Roball sculpture on any shopping websites, so it follows that he made, and subsequently shared his dream. The sculpture has an undeniable elegance with black brackets holding brass rails all on top of a wooden platform painted white. He estimates this project took four-hundred hours to design and build and that is easy to believe.
Our first assumption was that there must be an Arduino reading the little red button which starts a sequence. A 3D-printed robot arm grasps a cat’s eye marble and randomly places it on a starting point where it invariably rolls to its ending point. The brains are actually a Pololu Mini Maestro 12-channel servo controller. The hack is using a non-uniform marble and an analog sensor at the pickup position to randomly select the next track.
Most modern automata are hand-cranked kinetic sculptures typically made from wood, and [videohead118] was inspired by a video of one simulating a wave pattern from a drop of liquid. As a result, they made a 3D printed version of their own and shared the files on Thingiverse.
In this piece, a hand crank turns a bunch of cams that raise and lower a series of rings in a simulated wave pattern, apparently in response to the motion of a sphere on a central shaft. The original (shown in the animation to the right) was made from wood by a fellow named [Dean O’Callaghan], and a video of it in its entirety is embedded below the break.
This fascinating project manages to be both something new and something old done in a new way. Artist [Akinori Goto] has used 3D printing to create a sort of frameless zoetrope. It consists of a short animation of a human figure, but the 3D movements of that figure through time are “smeared” across a circular zone – instead of the movements of the figure being captured as individual figures or frames, they are combined into a single object, in a way squashing 4 dimensions into 3.
“Slices” of that object, when illuminated by a thin shaft of light, reveal the figure’s pose at a particular moment in time. When the object is spun while illuminated in this way, the figure appears to be animated in a manner very similar to a zoetrope.
There are two versions from [Akinori Goto] that we were able to find. The one shown above is a human figure walking, but there is a more recent and more ambitious version showing a dancer in motion, embedded below.
Since a thin ray of light is used to illuminate a single slice of the sculpture at a time, it’s also possible to use multiple points of illumination – or even move them – for different visual effects. Check out the videos below to see these in action.
Macro 3D printing is some cool stuff — but it’s extremely time consuming and can be very expensive. Introducing We The Builders, a 3D printing crowd source site which creates large scale projects the whole country can enjoy.
Their first project was George Crowdsourcington — a 1:1 copy of the Baltimore George Washington statue made out of 110 individual pieces. They chopped the model up into 4″ cubes and created the website in order to organize and distribute the files. One of their sponsors, Tinkerine Studio, reimbursed the shipping costs for makers who helped print out parts! Since his creation, Crowdsourcington has traveled all over the country, making stops at 3D printing shows in New York, mini-Maker Faires, art galleries, science centers and more — he even did a short residency in the Adafruit office in Manhattan!
It was quite the success, so they’re starting a new statue called the Distributed Ben Franklin. This one has a whopping 198 pieces, and they hope to have it built in time for the Silver Spring and World Maker Faires.