Junkbin, A Way To Efficiently Reuse Your Old Electronics

August 8, 2026 by Ian Bos 31 Comments

We all have that bin in the corner of our shops — the one with all the circuit boards or broken electronics that we are totally gonna do something with. We might rationalize that they’re worth keeping for the parts alone, but the reality is, unless you desolder and sort all the components ahead of time, most of us will never really use these spare parts to their full potential. Except it really doesn’t have to be that way. Junkbin.io is an attempt to improve on the state of that corner bin.

Though in its early years, Junkbin has a variety of the previously mentioned resources as well as many others. Currently, it is ripe to contribute, and we here at Hackaday know how important the community is to get these projects truly off the ground and to their full potential.

Created by [Steve Cap], Junkbin is a community dictionary of sorts to document and reuse electronic components found on many of the devices found around you. Do you need a single small form factor resistor of a specific resistance? That’s where Junkbin comes in to show you where you might find that specific component.

If you want a more macro-scale example of electronics recycling, make sure to check out our other featured projects such as these reused laptops! Or maybe take a look at this graveyard of defunct electronics to add to Junkbin…

Fibrous Muscles For Humanoid Robotics

July 14, 2026 by Ian Bos 14 Comments

At the current rate of robotics development, you might assume that we’re close to Skynet taking over. However, while we likely wouldn’t do well in a physical fight against a robot, we can at least keep the bragging rights of having the cooler actuators. Or at least, that was the case before a new actuator came into town — introducing “Electrofluidic Fiber Muscles”.

Traditional robotic actuators use motors of some kind with a variety of gearboxes or linkages to turn rotational movement into usable movement. This isn’t always the most effective way to run some robotics movements, especially when modeling humans. This is why many have turned to pressurized modes of actuation. Though most don’t show quite the promise of the new player.

Electrofluidic Fiber Muscles use pressure to shorten muscle strands, similar to past actuators. However, these are a tad different, taking advantage of electrofluidic pressure. A small current under high voltage is able to drive a pressure gradient in a long tube. This tube can then be connected to both an extensor and flexor portion of an actuating circuit, similar to a biological mechanical system. Better yet, this driving pressure pump can be spun around the fibers themselves, making a tight package.

Unfortunately, it will probably be a bit till we see this inside a hobbyist robot. Until then, make sure to check out some other actuator feats!

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CGI Motion Capture With Only A Camera

July 12, 2026 by Ian Bos 4 Comments

Computer-generated imagery (CGI) has largely replaced physical models in major film productions these days, but the transition didn’t exactly happen overnight. For a time there was an effort to blend the physical and digital, which allowed animators on productions such as Jurassic Park to work with newer technology in a way they were familiar with. [Corridor Crew] took this concept a step further by manipulating digital models with nothing but a webcam.

Early in the production of CGI, animators found a purely digital workflow to be less intuitive than the use of physical elements such as puppets. Feeling the weight and touch of a miniature with joints and limbs made for a more natural animation, so they created the dinosaur input device to map movements of a physical model into a digital recreation.

Puppeteered humanoid input device for the film *Species*

Unfortunately for the future of dinosaurs made of motion sensors, none of these devices really caught on and the technology is essentially non-existent today. [Corridor Crew] decided to give the concept another chance with the application of newer motion capture research. Using just a camera and a small human miniature allowed for full animations to be made using one’s own hands. The motion capture plugin can be found here if you want to try it for yourself!

At the end of the day, the need for a stop motion intermediate was found to be unnecessary. That being said, there is some really cool tech discovered throughout its history. If you want to discover even more film tech, maybe try out an adventure making your own film camera!

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Is Now The Time For Volumetric 3D Printing?

July 7, 2026 by Ian Bos 29 Comments

Of all innovations adopted by the maker community within the past couple of decades, one stands among the rest on top for anything regarding manufacturing. It goes without saying here at Hackaday how many projects have been reliant on using the technology to turn their ideas into reality. 3D printing has been a maker community invention and, in return, has expanded this hacky community into something that anyone with an imagination can get into. It also goes without saying that the layer-based tech imposes limits on what we can actually create: think overhangs and layer adhesion. However, there’s a possibility that a recent offshoot of this scrappy community has the power to eliminate some of these faults.

Volumetric additive manufacturing (VAM) is a young technology that has a similar start to many new tech toys, including the original SLA of the first 3D printers. That is expensive and completely stuck in the laboratory… Fortunately, that’s not where 3D printing as a whole stayed, as the RepRap project managed to bring the obscure technology to the hobbyists’ main stage. An entire group of people formed and spent countless hours until the useless pieces of poorly extruded plastic could form parts impossible to make with anything else. A cool quirk of history is that it likes to repeat: examples spur recreation, and this appears to be happening with the technology found within VAM printing.

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An Interactive Tomato Farm Overseen By AI

July 7, 2026 by Ian Bos 14 Comments

Oh, the farming lifestyle…living off the land, fending for yourself. But who’s got time for all that? For the modern hacker, the best option in the garden space may be this over-engineered automated AI tomato farm created by [Gerd Nicolay]. You can even interact with it right now through the magic of the Internet.

[Gerd] started off with your run-of-the-mill pot and plant, choosing the humble tomato to keep the system simple. Then things started to escalate, with the addition of automatic lighting, watering, and data logging environmental parameters like humidity. Now we’re getting somewhere, but there’s more that can be added. How about an entire AI council to monitor and decide the fate of each individual tomato while recording an entire storyline to go alongside the growing cycle?

That’s right, four different models collaborate to ensure only the utmost quality of care for these tomatoes based on camera feeds, humidity, and various other environmental factors being recorded constantly. Is this a little overkill? Maybe for those who have even a modest sense of gardening knowledge — but who can bash the mountain of documentation and data collection on these wonderful little plants?

Perhaps the best part: you can recommend actions for the AI counsel to take from the comfort of your own web browser. While the TomatoFarm might be slightly unnecessary for the average farmer, if you want to try a more reasonable monitoring system, we have you covered too!

Flight Sim Tracking From Spatial Audio

July 6, 2026 by Ian Bos 9 Comments

Flight sims are wonderful to play around with to get immersed in the position of a pilot. Racing sims can give you a thrill that can only be beaten by the real thing. However, most of this tech is on the more expensive side, so it would be great if you could use some of the hardware already found in your house. Many Sony headphones already have rotation and movement data built in for spatial audio, so why not start there?

[Nicholas Slattery] had this very idea and has produced an open-source application to connect your headphones straight to your sim. There’s a surprising amount of support built into many headsets that use a known protocol called the Android Head Tracker HID protocol. This allowed [Nicholas] to connect a family of Sony headphones straight into OpenTrack, which is often used with flight sims. The best part is you can still use the headphones as normal with a Bluetooth connection.

If you want to give this a try with your own rig, check out [Nicholas]’s GitHub here. While flight and driving sims might be expensive to put together, it’s never too hard to hack together something to lower that barrier! Whether it’s a flight sim force-feedback joystick or driving sim hand-breaks we got you!

Goddard The Robot Dog Brought To Life

June 8, 2026 by Ian Bos 1 Comment

There’s not much more nostalgic for many than good ole’ Jimmy Neutron. This was true for [Kiara], who saw the gorgeous pupper Goddard and wanted him for herself. Of course, there was no solution other than to make an animatronic version of the robot dog.

Starting with some files ripped from a Jimmy Neutron GameCube game, Goddard was designed digitally before being printed in life size. Of course, for a true reproduction of the robot dog, the parts had to be prepped and painted in the iconic chrome and purple. A real plasma ball was used for the brain, and linear actuators were used for the legs. The head was able to be moved around similarly to professional animatronics using fishing line and servos. Put together the entire finished pup, looks incredible.

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