Remoticon Video: How To 3D Print Onto Fabric With Billie Ruben

We’re impressed to see the continued flow of new and interesting ways to utilize 3D printing despite its years in the hacker limelight. At the 2020 Hackaday Remoticon [Billie Ruben] came to us from across the sea to demonstrate how to use 3D printing and fabric, or other flexible materials, to fabricate new and interesting creations. Check out her workshop below, and read on for more detail about what you’ll find.

The workshop is divided into two parts, a hands-on portion where participants execute a fabric print at home on their own printer, and a lecture while the printers whirr away describing ways this technique can be used to produce strong, flexible structures.

The technique described in the hands on portion can be clumsily summarized as “print a few layers, add the flexible material, then resume the printing process”. Of course the actual explanation and discussion of how to know when to insert the material, configure your slicer, and select material is significantly more complex! For the entire process make sure to follow along with [Billie]’s clear instructions in the video.

The lecture portion of the workshop was a whirlwind tour of the ways which embedded materials can be used to enhance your prints. The most glamourous examples might be printing scales, spikes, and other accoutrement for cosplay, but beyond that it has a variety of other uses both practical and fashionable. Embedded fabric can add composite strength to large structural elements, durable flexibility to a living hinge, or a substrate for new kinds of jewelry. [Billie] has deep experience in this realm and she brings it to bear in a comprehensive exposition of the possibilities. We’re looking forward to seeing a flurry of new composite prints!

TV Head Is Great Replacement For Your Real Head

The head is one of the few parts of the body that it seems impossible to live without. Many people are, of course, not happy with the one they’ve been given. For those dreaming of a more digital replacement, [Vivian’s] TV Head might be just the accessory to meet those needs.

The build starts with an old CRT, which [Vivian] promptly gutted to make room for her head. In place of the original tube, a thin polycarbonate sheet was installed with window tint applied. Behind this, rows of WS2812B are set up in a grid, spaced apart just enough to allow the wearer to see through.  The setup is controlled by a Circuit Playground Express. A small PS/2 keyboard is used to control the light show, and the onboard accelerometer can be used for gravity reactive animations.

For some reason, screens as heads are remarkably emotive, and we kind of want one for daily wear. We can imagine it making a great Halloween costume, too. If you’ve always wanted to cosplay as one of those colorful robots from the Opening Ceremony of the 2002 World Cup, here’s your chance. You will not be surprised that this isn’t the first TV head we’ve featured. Video after the break.

Continue reading “TV Head Is Great Replacement For Your Real Head”

Making A Halloween Costume Fit For 2020

All across the country, parents are wondering what to do about the upcoming Trick Or Treat season. Measures such as social distancing, contact free treats, or simply doing it at home are all being weighed as a balance of fun and safety. [BuildXYZ] has decided to lean into the challenges this year and incorporate a mask as part of the costume for his boys.

It started with a 3d printed mask, printed in two halves, and sealed with silicon caulk and N95 filter material in the inlet and outlet holes on the sides. The real magic of the mask is the small OLED screen mounted to the front that works along with a small electret microphone inside the mask. By sampling the microphone and applying a rolling average, the Arduino Nano determines if the mouth drawn on the display should be open or closed. A small battery pack on a belt clip (with a button to flash “Trick or Treat” on the screen) powers the whole setup and can be easily hidden under a cape or costume.

This isn’t the first hack we’ve seen for Halloween this year, such as this socially distant candy slide. We have a feeling that there will be many more as the month rolls on and people start to apply their ingenuity to the season.

Continue reading “Making A Halloween Costume Fit For 2020”

Fast Fresnel Hack Embiggens The Smallest Of Heads

Aside from frightening small children, we have absolutely no idea why anyone would need a face-magnifying headpiece. But the video below gives us a chuckle every time we see it, and we figure a good laugh that incorporates a quick optics hack is worth a look.

When he’s not playing geek in a box, [Curious Marc]’s videos usually have more of a retrocomputing theme, like his recent conversion of a vintage terminal to a character set from a made-up language, or helping to revive an Apollo Guidance Computer. Given gems like those, we were surprised to learn that [Marc]’s background is physics – optics, to be precise – and that he studied at École Polytechnique, the same school famed physicist Augustin-Jean Fresnel attended. Which fits right into this build since it features one of those large, plastic Fresnel lenses. After a fascinating detour into the history of Fresnel’s namesake lens, [Marc] proceeds with the build.

It’s simplicity itself – a box big enough to wear on the head with one end replaced by the Fresnel lens. A strip of LEDs – warm white, please, lest the wearer takes on a deathly pall – lines the edge of the box just behind the lens. If you want to get fancy, maybe attaching a hard-hat suspension piece would make it more wearable, but even as is it’s just a hoot to see someone with a magnified and distorted head walking around. One probably should be careful not to look at the sun while wearing this, however, for reasons that become apparent beginning at the 3:24 mark of the video.

Thanks to [Marc] for perhaps the oddest YouTube face-reveal yet, and for a great idea for a quick cosplay hack.

Continue reading “Fast Fresnel Hack Embiggens The Smallest Of Heads”

Be Anyone Or Anything With Facial Projection Mask

In the market for a low-poly change to your look? Hate the idea of showing up for a costume party only to find out someone is wearing the same mask as you? Then this face changing front-projection mask may be just the thing for you.

To be honest, we’re not sure just how much [Sean Hodgins]’ latest project has to do with cosplay. He seems to be making a subtle commentary about dealing with life in the surveillance state, even though this is probably not a strategy for thwarting facial-recognition cameras. [Ed Note: Or maybe it’s just Halloween?]

The build consists of a Raspberry Pi and a pico projector of the kind we’ve seen before. These are mated together via a custom PCB and live inside a small enclosure that’s attached to the end of a longish boom. The boom attaches to the chin of 3D-printed mask, which in turn is connected to the suspension system of a welding helmet. Powered by a battery pack and controlled by a smartphone app, the projector throws whatever you want onto the mask – videos, effects, even images of other people. Even with some Photoshop tweaks to account for keystone distortion from the low angle of projection, there’s enough distortion that the effect is more artistic than masquerade. But honestly, having your face suddenly burst into flames is pretty cool. We just wonder what visibility is like for the wearer with a bright LED blasting into your eyes.

As a bonus, [Sean] has worked this build into a virtual treasure hunt. Check out 13thkey.com and see what you can make from the minimal clues there.

Continue reading “Be Anyone Or Anything With Facial Projection Mask”

Lifelike Dinosaur Emerges From The Plumbing Aisle

Despite the incredible advancements in special effects technology since the film’s release, the dinosaurs in 1993’s Jurassic Park still look just as terrifying today as they did nearly 30 years ago. This has largely been attributed to the fact that the filmmakers wisely decided to use physical models in many of the close-up shots, allowing them to capture the nuances of movement which really helps sell the idea you’re looking at living creatures.

[Esmée Kramer] puts that same principle to work in her incredible articulated dinosaur costume, and by the looks of it, Steven Spielberg could have saved some money if he had his special effects team get their supplies at the Home Depot. Built out of PVC pipes and sheets of foam, her skeletal raptor moves with an unnerving level of realism. In fact, we’re almost relieved to hear she doesn’t currently have plans on skinning the creature; some things are better left to the imagination.

In her write-up on LinkedIn (apparently that’s a thing), [Esmée] explains some of the construction tricks she used to help bring her dinosaur to life, such as heating the pipes and folding them to create rotatable joints. Everything is controlled by way of thin ropes, with all the articulation points of the head mirrored on the “steering wheel” in front of her.

Now to be fair, it takes more than a bundle of PVC pipes to create a convincing dinosaur. Obviously a large part of why this project works so well is the artistry that [Esmée] demonstrates at the controls of her creation. Judging by her performance in the video after the break, we’re going to assume she’s spent a not inconsiderable amount of time stomping around the neighborhood in this contraption to perfect her moves.

In the past we’ve seen the Raspberry Pi used to upgrade life-sized animatronic dinosaurs, but even with the added processing power, those dinos don’t hold a candle to the smooth and organic motion that [Esmée] has achieved here. Just goes to show that sometimes low-tech methods can outperform the latest technological wizardry.

Continue reading “Lifelike Dinosaur Emerges From The Plumbing Aisle”

Gaze Upon This Daft Punk Helmet’s Rows Of Utterly Perfect Hand-Soldered LEDs

The iconic robot helmets of Daft Punk feature prominently as challenging DIY hardware projects in their own right, and the results never disappoint. But [Nathaniel Stepp]’s photo gallery of his own version really sets the bar in both quality and attention to detail. The helmet uses a Teensy 3.2 as the main processor, and the visor consists of 328 hand soldered through-hole APA106 addressable RGB LEDs. A laser cut panel serves as the frame for the LEDs, and it was heat-formed to curve around the helmet and mate into the surrounding frame. Each LED is meticulously hand-soldered, complete with its own surface mount decoupling cap; there’s no wasted space or excess wire anywhere to be seen. It looks as if a small 3D printed jig was used to align and solder the LEDs one or two columns at a time, which were then transferred to the visor for final connections with the power bus and its neighboring LEDs.

After the whole array was assembled and working, the back of each LED appears to have then been carefully coated in what looks like Plasti-Dip in order to block light, probably to minimize the blinding of the wearer. A small amount of space between each LED allows the eyeballs inside the helmet to see past the light show in the visor.

The perfectly done array of LEDs in the visor is just one of the design elements showing the incredible workmanship and detail in [Nathaniel]’s helmet. His website promises more build details are coming, but in the meantime you can drink in the details shown in the aforementioned photo gallery.

With Halloween approaching, you might be interested in rolling your own Daft Punk inspired helmet. Not ready to do everything from scratch? No problem, because it’s never been easier to make your own with the help of a 3D printer and some LED strips.

[via SparkFun Blog]