2026-01-20 11:00:49
Silicone bakeware has become a staple in many kitchens due to its flexible, yet temperature-tolerant nature. New research from Canada shows it could be causing trouble for your liver and lungs, however.
The siloxanes that make up silicone bakeware can target “the liver through oral exposure, as well as the liver and lungs through inhalation exposure.” The fat content of the food being baked is also a factor as these compounds are lipophilic, so higher fat foods will absorb more siloxanes than lower fat foods.
Don’t throw out all your silicone yet, though. The researchers say, “the results showed a consistent decreasing trend in migration levels across consecutive weekly baking sessions, with no increase after the seven-month interval.” So, that dingy looking silicone mat you’ve used a hundred times is safer than a brand new, brightly-colored one.
This seems like an example of how glass and (non-heavy) metal are usually the best way to go when handling food. While we’re talking about ovens, do they really need to run a connectivity check? They certainly could be improved with a DIY thermometer or by making a more practical solar-powered example.
2026-01-20 08:00:07
If you ever built a line following robot, you’ll be nostalgic about [Jeremy’s] light-seeking robot. It is a very simple build since there is no CPU and, therefore, also no software.
The trick, of course, is a pair of photo-sensitive resistors. A pair of motors turns the robot until one of the sensors detects light, then moves it forward.
This is a classic beginner project made even easier with a 3D printer and PCB to hold the components. You might consider using an adjustable resistor to let you tune the sensitivity more easily. In addition, we’ve found that black tubes around the light sensors in this sort of application give you a better directional reading, which can help.
The robot only has two wheels, but a third skid holds the thing up. A freely-rotating wheel might work better, but for a simple demonstration like this, the skid plate is perfectly fine.
This is a good reminder that not every project has to be fantastically complex or require an RTOS and high-speed multi-core CPUs. You can do a lot with just a handful of simple components.
If you want to follow a line, the basic idea is usually the same, with perhaps some different sensors. Usually, but not always.
2026-01-20 05:00:46
How do you go about making a mirror with 128 segments, each of which can be independently angled? That was the question that a certain bloke over at [Time Sink Studio] found himself pondering on, to ultimately settle on a whole batch of mini-actuators bought through AliExpress. These stepper-based actuators appear to be akin to those used with certain Oppo smartphones with pop-up camera, costing less than half a dollar for a very compact and quite fast actuator.
The basic design is very much akin to a macro version of a micromirror device, as used in e.g. DLP projectors, which rely on a kinetic mirror mount to enable precise alignment. With the small actuators travelling up to 8 mm each, the mirrors can cover 73 mm at a distance of 4 meters from a wall.
With the required angle of the mirror being effectively just the application of the Pythagorean theorem, the biggest challenge was probably calibrating these linear motors. Since they’re open loop devices, they are zeroed much like the steppers on 3D printers, by finding the end limit and counting steps from that known point. This doesn’t make drift impossible, but for projecting light onto walls it’s clearly more than good enough.
2026-01-20 03:30:00
Syringes are pretty ergonomic, but when manually dispensing flux and solder paste it doesn’t take long before one wants a better way. [Elektroarzt]’s flux and solder paste dispenser design uses 3D-printed parts and minimal hardware (mostly M3x20 screws, and an optional spring) to improve handling and control.
How does it work? The ratcheting lever mechanism is similar to that of a hot glue gun, where an arm slips into notches in a rod when pressed down, driving it forward and never backward. In the process, a larger lever movement is translated into a shorter plunger travel, enhancing control.
The types of syringes this tool is meant to be used with have a plunger tip or piston (the rubber stopper-looking part, in contact with the liquid) inside the loaded syringe, but no plunger shaft attached to it. This is common with syringes meant to be loaded into tools or machines, and [Elektroarzt]’s tool can be used with any such syringe in a 10 cc size.
It’s an attractive design, and we like the way syringes top-load as well as the way the tool is made to lay flat on a tabletop, with the lever pointed up.
Want truly fine-grained control over your extrusions? Then check out this dispenser which really lets one dial in small amounts. You can also go motorized, and let a small PCB and stepper motor do the work.
2026-01-20 02:00:20
Get a handle on this bad boy! Okay, so those voids are really more for airing out your palms, I’d imagine, because palm sweat sure is real — you should see the pads of my Kinesis. This kind of looks like two sawed-off machine guns kissing, and I mean that in the best possible and non-violent way.
And yet, pricing (oh yeah, this is gonna be A Thing You Can Buy) will be around $115-155, depending upon whether you want the base kit, or the add-ons, too, minus switches and key caps.
So let’s get into the particulars here. As you can see, there are key wells and thumb clusters, inspired by other keyboards including your bog standard Maltrons, Kinesis Advantages and more modern, open-source takes like the Dactyl. [ntc490] loves the key well-thumb cluster combination, and I do, too (hello from the Glove80). And miraculously, the keys are hot-swappable via sockets.
Inside, you’d find direct wiring to the GPIOs, so I’m gonna guess that those are RP2040 clones in there. There’s no PCB, no diodes, no matrices to debug.
So please do go visit the thread if this keyboard appeals to you at this price point. I love it, but I would need more rows of keys, personally. The top reddit comment mentions this as well, and [ntc490] says that because the thing is modular, it can easily accommodate more keys in both the wells and the thumb clusters. I seriously want one of these. Just with a few more keys.
Remember [kleshwong]’s PSKEEB5 from a couple of Keebins ago, right before Christmas? He was going to open-source it if there was enough interest? Well, it seems that [kleshwong] decided to do it anyway and has since provided some new videos if you want to build one for yourself.
As a refresher, this thing has some really neat features like swing-out tenting feet, a pair of trackpoints, rotary encoders, and a carrying case that doubles as a laptop stand.
For the internals, any nice!nano-compatible boards will do. You’ll also need Kailh hot-swap sockets, among other things, naturally. If you have any trouble sourcing like the trackpoints for instance, you’re in luck, because [kleshwong] recently opened an online store. Go forth and build the ultimate portable split!
I’m using my MoErgo Glove80 pretty hardcore these days, driving them all crazy down at the library. But hey, it’s quieter than the big, echo-y Kinesis Advantage, even though they both have browns.
Once I saw the upcoming Go60 by MoErgo, though, I knew I simply needed wooden palm rests for the Glove80. So, over the course of two days, my father-in-law and I fabricated these fetching zebrawood rests, first from pink foam, then from poplar, and finally from book-matched zebra. I think we have a real conversation piece here.
Do you rock a sweet set of peripherals on a screamin’ desk pad? Send me a picture along with your handle and all the gory details, and you could be featured here!
I was sorry to hear that [Keenan Finucan] had to submit this twice in order to get my attention. But here we are, with what is probably the world’s first 3D-printed index typewriter. So, why is this filed under Historical Clackers? Because I said so, and because it’s based on a real antique index typewriter, the AEG Mignon Model 4. This first model of Mignon was designed between 1901-1903 by German company AEG. Mignons were produced until 1932.
I think this looks fabulous overall, and I rather like the way the index is laid out, which is decidedly non-alphabetical and, surprisingly, does not mirror the AEG index.
[Keenan] reports that thanks to months of work and revisions, this project is as accessible and repeatable as possible. You don’t even need any glue, and non-printed items are at a minimum. You will need a minimum XYZ build volume of 250 x 210 220 mm, TPU or other flexible filament, some springs, a bit of coat hanger wire, and a universal 1/2″ typewriter ribbon, which is pretty widely available.
Alright coders, designers, and engineers: this elegant hunk of metal is for you. What we’ve got here is Caligra’s c100 Developer Terminal. Described as a “computer for experts”, this is not meant for scrolling social media, although what developer can get through the day without a reddit break or three?
Let’s talk about that body. It’s entirely CNC-milled from a solid block of aluminium, which makes me think of the Icebreaker keyboard we saw here almost exactly a year ago. Both double as handy bludgeoning devices, but this one is decidedly more attractive. The bead-blasted finish of the c100 does simultaneously evoke modern and industrial design, so I’ll agree with Yanko on that note.
The coolest part is half-evident in the picture I chose. There’s a central magnetic pivot structure, and this lets you detach and fold the thing up even smaller, without any external hinges.
I thought the storage compartment gimmicky at first, but I’ve grown to like the idea of having a place for pens and whatnot. Yanko almost threatens to call it subversive in the face of what tech companies probably do not want you doing: opening the thing up. You are supposed to tinker with this one.
For some reason, the num pad is on the left, though I suppose this solves the distance-to-mouse problem. Yanko says the design uses Fitts’ law to accelerate task management, and this is supposed to explain why the keys are clustered the way they are. Basically, the placement of each key has been optimized for both speed an minimal hand movement. The wired mouse looks a bit uncomfortable, however.
This thing ships with Workbench OS, which is Linux-based and built specifically for technical work. There are no pop-ups in Workbench OS, which sounds amazing. So I would think that c100 is for writers, too, provided the keyboard clacks nicely.
Got a hot tip that has like, anything to do with keyboards? Help me out by sending in a link or two. Don’t want all the Hackaday scribes to see it? Feel free to email me directly.
2026-01-20 00:30:16
Although arguably redundant on a typical computer keyboard, the idea of embedding small screens into the buttons on devices like audio production gear that often have so many buttons can make a lot of sense. As exemplified by devices with a UX that regularly degrades into scrolling through options on a tiny screen. This was basically the impetus for [Craig J Bishop] a few years ago to set out on a design project called the SoundSlab audio sequencer/sampler/synthesizer and slab that would make those buttons much more functional.
Obviously, the right way to start the project is to bulk buy hundreds of 0.85″ 128×128 LCDs so that you’re firmly locked into that choice. Fortunately, it turned out that the most annoying part of this LCD was the non-standard 0.7 mm pitch on its flat flex cable (FFC). This was worked around with an PCB adapter milled out of some copper-clad FR-1, which gave it a convenient PMOD interface for straightforward hook-up to a Xilinx Artix-7 FPGA board.
The buttons themselves were designed as 3D printed key caps for the LCDs that clipped onto typical Cherry MX-style mechanical keys. This also revealed that the original FFCs were too short, so they had to be replaced with new FFCs, that also adapted it to a standard 0.5 mm pitch. With this a 4×4 button prototype board could be constructed for testing.
Since that prototype [Craig] has built a full-sized SoundSlab grid, with a custom FPGA board and HDMI input, of which a preview can be seen in the post, along with a promise by [Craig] to soon post the rest of the SoundSlab development.
Thanks to [JohnS_AZ] for the tip.
