Functional circuit sculptures have been gaining popularity with adventuring electronic artists who dare attempt the finicky art form of balancing structure and wire routing. [Kelly Heaton’s] sculptures however are on a whole other creative level.
Not only does she use the circuits powering her works as part of their physical component, there are no controllers or firmware to be seen anywhere; everything is discrete and analog. In her own words, she tries to balance the “logical planning” of the engineering side with the “unfettered expression” of artworks. The way she does this is by giving her circuits a lifelike quality, with disorganized circuit structures and trills and chirps that mimic those of wildlife.
One of her works, “Birds at My Feeder”, builds up on another previous work, the analog “pretty bird”. On their own, each one of the birds uses a photoresistor to affect its analog-generated chirps, providing both realistic and synthetic qualities to their calls. What the full work expands on is a sizable breadboard-mounted sequencer using only discrete components, controlling how each of the connected birds sing in a pleasing chorus. Additionally, the messy nature of the wires gives off the impression of the sequencer doubling as the birds’ nest.
There are other works as well in this project, such as the “Moth Electrolier”, in which she takes great care to keep structural integrity in mind in the design of the flexible board used there. Suffice to say, her work is nothing short of brilliant engineering and artistic prowess, and you can check one more example of it after the break. However, if you’re looking for something more methodical and clean, you can check out the entries on the circuit sculpture contest we ran last year.
It doesn’t seem as though bending wire would be much of a chore, but when you’re making art from your circuits, it can be everything. Just the right angle in just the right place can make the difference between a circuit sculpture that draws gasps and one that’s only “Meh.”
[Jiří Praus] creates circuit sculptures that are about as far away from the “Meh” end of the spectrum as possible. And to help him make them even more spectacular, he has started prototyping a wire-bending machine to add precision to his bends. There’s no build log at the moment, but the video below shows progress to date. All the parts are 3D-printed, with two NEMA 17 steppers taking care of both wire feed and moving the bending head. It appears that the head has multiple slots for tools of different shapes. For now, the wire is rotated around its long axis manually, but another stepper could be added to take care of that job.
[Jiří] tells us that while he loves making circuit sculptures like his amazing mechanical tulip, he hates repeating himself. He hopes this bender will make repeat jobs a little less tedious and a lot more precise, and we hope he goes forward with the build so we get to see both it and more of his wonderful works of circuit art.
The inspiration for this project actually comes from something [Josef] had worked on previously: an ESP8266-based environmental monitoring system. That device had sensors to pick up on things such as humidity and ambient light level, but it didn’t have a display of its own; it just pushed the data out onto the network using MQTT. So he thought a companion device which could receive this environmental data and present it to him in a unique and visually appealing way would be a natural extension of the idea.
As the display doesn’t need any local sensors of its own, it made the design and construction much easier. Which is not to say it was easy, of course. In this write-up, [Josef] takes the reader through the process of designing each “layer” of the circuit in 2D, printing it out onto paper, and then using that as a guide to assemble the real thing. Once he had the individual panels done, he used some pieces of cardboard to create a three dimensional jig which helped him get it all soldered together.
On the software side it’s pretty straightforward. It just pulls the interesting bits of information off of the network and displays it on the OLED. Right now it’s configured to show current temperature on the display, but of course that could be changed to pretty much anything you could imagine if you’re looking to add a similar device to your desktop. There’s also a red LED on the device which lights up to let [Josef] know when the batteries are getting low on the remote sensor unit; a particularly nice touch.
Over the past few decades of evolution, cars have grown to incorporate a mind-boggling number of electric components. From parking distance sensors, to the convenience of power locks and windows, to in-car entertainment systems rivaling home theaters. Normally this interconnected system’s complexity is hidden between exterior sheet metal and interior plastic trim, but a group of students of Volkswagen’s vocational training program decided to show off their internal beauty by building the Volkswagen eGon exhibit.
Seeing a super minimalist Volkswagen electric Golf on the move (short Twitter video embedded below) we are immediately reminded of circuit sculptures. We saw some great projects in our circuit sculpture contest, but the eGon shows what can be done with the resources of a Volkswagen training center. Parts are bolted to the car’s original structure where possible, the rest were held in their representative positions by thin metal tube frames. At this scale, they look just like the brass rods used in small circuit sculptures! Certain component enclosures were replaced with transparent pieces, or had a window cut into them for visibility.
This exhibit was built for IdeenExpo, an event to expose students to science and technology. Showing them what’s under the cover in this “see-through car” with internal components tagged with QR codes pointing them to additional information. The number of electronic modules inside a car is only going to continue rising with the coming wave of electric and/or self-driving cars. Even if the timing of their arrival is debatable, we know we’ll need brain power helping to answer questions we don’t even know to ask yet. The eGon is doing a great job attracting attention and inviting bright young minds to participate.
Elliot Williams and Mike Szczys take a look at advances in photogrammetry (building 3D models out of many photographs from a regular camera), a delay pedal that’s both aesthetically and aurally pleasing, and the power of AI to identify garden slugs. Mike interviews Scotty Allen while walking the streets and stores of the Shenzhen Electronics markets. We delve into SD card problems with Raspberry Pi, putting industrial controls on your desk, building a Geiger counter for WiFi, and the sad truth about metal 3D printing.
Take a look at the links below if you want to follow along, and as always, tell us what you think about this episode in the comments!
For the unfamiliar, a pummer is a device from the BEAM style of robotics, a sort of cyborg plant that absorbs solar energy during the day and turns it into a gently pulsating light that “pumms” away the dark hours.
[Mohit Bhoite]’s take on the pummer is an extraordinary model of a satellite executed mainly in brass rod. His attention to detail on the framework boggles our minds; we could work for days on a brass rod and never achieve the straight lines and perfect corners he did. The wings support two solar cells, while the hull of the satellite holds a dead-bugged 74HC240 octal buffer/line-driver chip and all the other pumm-enabling components. A one farad supercap – mounted to look like a dish antenna – is charged during the day and a single LED beacon blinks into the night.
No schematic is provided, but there are probably enough closeup shots to reverse engineer this, which actually sounds like a fun exercise. (Or you can cheat and fetch the PDF copy of the old Make magazine article that inspired him.)
Holidays are always good for setting a deadline for finishing fun projects, and every Valentine’s Day we see projects delivering special one-of-a-kind gifts. Why buy a perishable bulk-grown biological commodity shipped with a large carbon footprint when we can build something special of our own? [Jiří Praus] certainly seemed to think so, his wife will receive a circuit sculpture tulip that blooms when she touches it.
This project drew from [Jiří]’s experience with aesthetic LED projects. His Arduino-powered snowflake, with LEDs mounted on a custom PCB, is a product available on Tindie. For our recent circuit sculpture contest, his entry is a wire frame variant on his snowflake. This tulip has 7 Adafruit NeoPixel in the center and 30 white SMD LEDs in the petals, which look great. But with the addition of mechanical articulation, this project has raised the bar for all that follow.
We hope [Jiří] will add more details for this project to his Hackaday.io profile. In the meantime, look over his recent Tweets for more details on how this mechanical tulip works. We could see pictures and short videos of details like the wire-and-tube mechanism that allowed all the petals to be actuated by a single servo, and the components that are tidily packaged inside that wooden base.