3D Printing Paper — Sort Of
https://hackaday.com/2019/12/26/3d-printing-paper-sort-of/
There are only a few truly ancient engineered materials, and among the oldest is paper. Traditionally, paper is flat and can be bent into shapes. However, paper can be molded into for example packing material or egg cartons. [XYZAidan] has a process that can recycle paper into 3D cardboard-like objects. …read more (https://hackaday.com/2019/12/26/3d-printing-paper-sort-of/)
https://hackaday.com/2019/12/26/3d-printing-paper-sort-of/
There are only a few truly ancient engineered materials, and among the oldest is paper. Traditionally, paper is flat and can be bent into shapes. However, paper can be molded into for example packing material or egg cartons. [XYZAidan] has a process that can recycle paper into 3D cardboard-like objects. …read more (https://hackaday.com/2019/12/26/3d-printing-paper-sort-of/)
Word Clock Does The Job With Laser-Etched Acrylic
https://hackaday.com/2019/12/26/word-clock-does-the-job-with-laser-etched-acrylic/
As far as telling the time, word clocks go out of their way to spell it out for you. As long as you know the language, they’re a stylish and effective way to get the message across. [Simon] built an elegant, stripped-back word clock of his own, with a laser …read more (https://hackaday.com/2019/12/26/word-clock-does-the-job-with-laser-etched-acrylic/)
https://hackaday.com/2019/12/26/word-clock-does-the-job-with-laser-etched-acrylic/
As far as telling the time, word clocks go out of their way to spell it out for you. As long as you know the language, they’re a stylish and effective way to get the message across. [Simon] built an elegant, stripped-back word clock of his own, with a laser …read more (https://hackaday.com/2019/12/26/word-clock-does-the-job-with-laser-etched-acrylic/)
Think You Know cURL? Care to Prove It?
https://hackaday.com/2019/12/27/think-you-know-curl-care-to-prove-it/
Do you happen to remember a browser-based game “You Can’t JavaScript Under Pressure”? It presented coding tasks of ever-increasing difficulty and challenged the player to complete them as quickly as possible. Inspired by that game, [Ben Cox] re-implemented it as You Can’t cURL Under Pressure!
In it, the user is …read more (https://hackaday.com/2019/12/27/think-you-know-curl-care-to-prove-it/)
https://hackaday.com/2019/12/27/think-you-know-curl-care-to-prove-it/
Do you happen to remember a browser-based game “You Can’t JavaScript Under Pressure”? It presented coding tasks of ever-increasing difficulty and challenged the player to complete them as quickly as possible. Inspired by that game, [Ben Cox] re-implemented it as You Can’t cURL Under Pressure!
In it, the user is …read more (https://hackaday.com/2019/12/27/think-you-know-curl-care-to-prove-it/)
Apple HomeKit Accessory Development Kit Gets More Accessible
https://hackaday.com/2019/12/27/apple-homekit-accessory-development-kit-gets-more-accessible/
Every tech monopoly has their own proprietary smart home standard; how better to lock in your customers than to literally build a particular solution into their homes? Among the these players Apple is traditionally regarded as the most secretive, a title it has earned with decades of closed standards and …read more (https://hackaday.com/2019/12/27/apple-homekit-accessory-development-kit-gets-more-accessible/)
https://hackaday.com/2019/12/27/apple-homekit-accessory-development-kit-gets-more-accessible/
Every tech monopoly has their own proprietary smart home standard; how better to lock in your customers than to literally build a particular solution into their homes? Among the these players Apple is traditionally regarded as the most secretive, a title it has earned with decades of closed standards and …read more (https://hackaday.com/2019/12/27/apple-homekit-accessory-development-kit-gets-more-accessible/)
Russia’s Newest Weather Satellite May Have Be Killed by Space Junk
https://hackaday.com/2019/12/27/russias-newest-weather-satellite-may-have-be-killed-by-space-junk/
For humans and satellites alike, making a living is space is hard. First, there’s the problem of surviving the brief but energetic and failure-prone ride there, after which you get to alternately roast and freeze as you zip around the planet at 20 times the speed of sound. The latter …read more (https://hackaday.com/2019/12/27/russias-newest-weather-satellite-may-have-be-killed-by-space-junk/)
https://hackaday.com/2019/12/27/russias-newest-weather-satellite-may-have-be-killed-by-space-junk/
For humans and satellites alike, making a living is space is hard. First, there’s the problem of surviving the brief but energetic and failure-prone ride there, after which you get to alternately roast and freeze as you zip around the planet at 20 times the speed of sound. The latter …read more (https://hackaday.com/2019/12/27/russias-newest-weather-satellite-may-have-be-killed-by-space-junk/)
3D Printed Pulsejet Uses Tesla Valve
https://hackaday.com/2019/12/27/3d-printed-pulsejet-uses-tesla-valve/
For most people, a jet is a jet. But there are several different kinds of jet engines, depending on how they operate. You frequently hear about ramjets, scramjets, and even turbojets. But there is another kind — a very old kind — called a pulsejet. [Integza] shows how he made …read more (https://hackaday.com/2019/12/27/3d-printed-pulsejet-uses-tesla-valve/)
https://hackaday.com/2019/12/27/3d-printed-pulsejet-uses-tesla-valve/
For most people, a jet is a jet. But there are several different kinds of jet engines, depending on how they operate. You frequently hear about ramjets, scramjets, and even turbojets. But there is another kind — a very old kind — called a pulsejet. [Integza] shows how he made …read more (https://hackaday.com/2019/12/27/3d-printed-pulsejet-uses-tesla-valve/)
2019: As the Hardware World Turns
https://hackaday.com/2019/12/27/2019-as-the-hardware-world-turns/
Well, this is it. The end of the decade. In a few days the 2010s will be behind us, and a lot of very smug people will start making jokes on social media about how we’re back in the “Roaring 20s” again. Only this time around there’s a lot more …read more (https://hackaday.com/2019/12/27/2019-as-the-hardware-world-turns/)
https://hackaday.com/2019/12/27/2019-as-the-hardware-world-turns/
Well, this is it. The end of the decade. In a few days the 2010s will be behind us, and a lot of very smug people will start making jokes on social media about how we’re back in the “Roaring 20s” again. Only this time around there’s a lot more …read more (https://hackaday.com/2019/12/27/2019-as-the-hardware-world-turns/)
Bend it Like Bhoite: Circuit Sculptures Shatter The Bounds of Flatland
https://hackaday.com/2019/12/27/bend-it-like-bhoite-circuit-sculptures-shatter-the-bounds-of-flatland/
As electronics hobbyists, we live in a somewhat two-dimensional world. Our craft is so centered around the printed circuit board that our design tools are specifically geared to spit out files tailored to the board house, who can then ship us a study in fiberglass and copper. We daub on …read more (https://hackaday.com/2019/12/27/bend-it-like-bhoite-circuit-sculptures-shatter-the-bounds-of-flatland/)
https://hackaday.com/2019/12/27/bend-it-like-bhoite-circuit-sculptures-shatter-the-bounds-of-flatland/
As electronics hobbyists, we live in a somewhat two-dimensional world. Our craft is so centered around the printed circuit board that our design tools are specifically geared to spit out files tailored to the board house, who can then ship us a study in fiberglass and copper. We daub on …read more (https://hackaday.com/2019/12/27/bend-it-like-bhoite-circuit-sculptures-shatter-the-bounds-of-flatland/)
Breathe Easy With This Online Dust Sensor Box
https://hackaday.com/2019/12/27/breathe-easy-with-this-online-dust-sensor-box/
It’s an unfortunate reality that for many of us, our air isn’t nearly as clean as we’d like. From smog to wildfires, there’s a whole lot of stuff in the air that we’d just as soon like to keep out of our lungs. But in order to combat this enemy, …read more (https://hackaday.com/2019/12/27/breathe-easy-with-this-online-dust-sensor-box/)
https://hackaday.com/2019/12/27/breathe-easy-with-this-online-dust-sensor-box/
It’s an unfortunate reality that for many of us, our air isn’t nearly as clean as we’d like. From smog to wildfires, there’s a whole lot of stuff in the air that we’d just as soon like to keep out of our lungs. But in order to combat this enemy, …read more (https://hackaday.com/2019/12/27/breathe-easy-with-this-online-dust-sensor-box/)
Drill Thrice, Solder Once
https://hackaday.com/2019/12/27/drill-thrice-solder-once/
If you design printed circuit boards, then you will have also redesigned printed circuit boards. Nobody gets it right the first time, every time. Sometimes you can solder a scrap of 30gauge wire, flip a component 180°, or make a TO-92 transistor do that little pirouette thing where the …read more (https://hackaday.com/2019/12/27/drill-thrice-solder-once/)
https://hackaday.com/2019/12/27/drill-thrice-solder-once/
If you design printed circuit boards, then you will have also redesigned printed circuit boards. Nobody gets it right the first time, every time. Sometimes you can solder a scrap of 30gauge wire, flip a component 180°, or make a TO-92 transistor do that little pirouette thing where the …read more (https://hackaday.com/2019/12/27/drill-thrice-solder-once/)
Magic-Angle Twisted Bilayer Graphene – Yes, That’s The Scientific Name
https://hackaday.com/2019/12/27/magic-angle-twisted-bilayer-graphene-yes-thats-the-scientific-name/
In the world of physics research, graphene has been gaining popularity as one of the most remarkable materials in the last 15 years. While it may appear unassuming in common household goods such as pencil leads, the material boasts a higher strength than steel and a higher flexibility than paper. …read more (https://hackaday.com/2019/12/27/magic-angle-twisted-bilayer-graphene-yes-thats-the-scientific-name/)
https://hackaday.com/2019/12/27/magic-angle-twisted-bilayer-graphene-yes-thats-the-scientific-name/
In the world of physics research, graphene has been gaining popularity as one of the most remarkable materials in the last 15 years. While it may appear unassuming in common household goods such as pencil leads, the material boasts a higher strength than steel and a higher flexibility than paper. …read more (https://hackaday.com/2019/12/27/magic-angle-twisted-bilayer-graphene-yes-thats-the-scientific-name/)
FPGA 6800 Uses Python Toolbox
https://hackaday.com/2019/12/27/fpga-6800-uses-python-toolbox/
Usually, when you think of designing — or recreating — a CPU on an FPGA, you assume you’ll have to use Verilog or VHDL. There are other options, as well, but those are the biggest two players in FPGA configuration. [Robert Baruch] has a multipart series where he uses nMigen …read more (https://hackaday.com/2019/12/27/fpga-6800-uses-python-toolbox/)
https://hackaday.com/2019/12/27/fpga-6800-uses-python-toolbox/
Usually, when you think of designing — or recreating — a CPU on an FPGA, you assume you’ll have to use Verilog or VHDL. There are other options, as well, but those are the biggest two players in FPGA configuration. [Robert Baruch] has a multipart series where he uses nMigen …read more (https://hackaday.com/2019/12/27/fpga-6800-uses-python-toolbox/)
[Ben Krasnow]’s Take on DIY Air Bearings
https://hackaday.com/2019/12/28/ben-krasnows-take-on-diy-air-bearings/
We’ve got to admit that watching [Ben Krasnow]’s new video on air bearings is tough. We found our eyes constantly checking the spherical air bearing in the foreground, which for the first eight minutes of the video just kept going. It was strangely hypnotic, and made it hard to concentrate …read more (https://hackaday.com/2019/12/28/ben-krasnows-take-on-diy-air-bearings/)
https://hackaday.com/2019/12/28/ben-krasnows-take-on-diy-air-bearings/
We’ve got to admit that watching [Ben Krasnow]’s new video on air bearings is tough. We found our eyes constantly checking the spherical air bearing in the foreground, which for the first eight minutes of the video just kept going. It was strangely hypnotic, and made it hard to concentrate …read more (https://hackaday.com/2019/12/28/ben-krasnows-take-on-diy-air-bearings/)
A VFD Wall Thermometer
https://hackaday.com/2019/12/28/a-vfd-wall-thermometer/
Want to build something using VFD tubes, but don’t need yet another clock project? In that case, this wall mounted temperature and humidity display created by [commanderkull] might be exactly what you’re looking for. With six IV-11 tubes, this display is a practical way to add some of that gorgeous …read more (https://hackaday.com/2019/12/28/a-vfd-wall-thermometer/)
https://hackaday.com/2019/12/28/a-vfd-wall-thermometer/
Want to build something using VFD tubes, but don’t need yet another clock project? In that case, this wall mounted temperature and humidity display created by [commanderkull] might be exactly what you’re looking for. With six IV-11 tubes, this display is a practical way to add some of that gorgeous …read more (https://hackaday.com/2019/12/28/a-vfd-wall-thermometer/)
Stronger 3D Prints — Glue or Carbon Fiber?
https://hackaday.com/2019/12/28/stronger-3d-prints-glue-or-carbon-fiber/
[CNCKitchen], like many others, is looking to make strong 3D prints. Using a high tech PLA bio copolyester compound, he printed a bunch of hooks in two different orientations. He used several different types of glue including epoxy and superglue. You can see the video of his results, below.
In …read more (https://hackaday.com/2019/12/28/stronger-3d-prints-glue-or-carbon-fiber/)
https://hackaday.com/2019/12/28/stronger-3d-prints-glue-or-carbon-fiber/
[CNCKitchen], like many others, is looking to make strong 3D prints. Using a high tech PLA bio copolyester compound, he printed a bunch of hooks in two different orientations. He used several different types of glue including epoxy and superglue. You can see the video of his results, below.
In …read more (https://hackaday.com/2019/12/28/stronger-3d-prints-glue-or-carbon-fiber/)
Peek Inside These Same-But-Different Power Supplies
https://hackaday.com/2019/12/28/peek-inside-these-same-but-different-power-supplies/
When [Kerry Wong] found an Amrel PPS 35-2 Programmable Power Supply from the late 90s on eBay, he recognized it as the single-channel version of another unit he owned, the dual-channel Amrel PPS-2322. Naturally, he purchased it and did a compare and contrast of the two models.
From the outside, …read more (https://hackaday.com/2019/12/28/peek-inside-these-same-but-different-power-supplies/)
https://hackaday.com/2019/12/28/peek-inside-these-same-but-different-power-supplies/
When [Kerry Wong] found an Amrel PPS 35-2 Programmable Power Supply from the late 90s on eBay, he recognized it as the single-channel version of another unit he owned, the dual-channel Amrel PPS-2322. Naturally, he purchased it and did a compare and contrast of the two models.
From the outside, …read more (https://hackaday.com/2019/12/28/peek-inside-these-same-but-different-power-supplies/)
A Pocket-Sized Terminal for Mobile Python Hacking
https://hackaday.com/2019/12/28/a-pocket-sized-terminal-for-mobile-python-hacking/
Inspired by the good old days when your computer would boot directly into BASIC, [Le Roux Bodenstein] has created a handheld device he calls “DumbDumb” that can drop you into a MicroPython environment at a moment’s notice. If that doesn’t interest you, think of it this way: it’s a (relatively) …read more (https://hackaday.com/2019/12/28/a-pocket-sized-terminal-for-mobile-python-hacking/)
https://hackaday.com/2019/12/28/a-pocket-sized-terminal-for-mobile-python-hacking/
Inspired by the good old days when your computer would boot directly into BASIC, [Le Roux Bodenstein] has created a handheld device he calls “DumbDumb” that can drop you into a MicroPython environment at a moment’s notice. If that doesn’t interest you, think of it this way: it’s a (relatively) …read more (https://hackaday.com/2019/12/28/a-pocket-sized-terminal-for-mobile-python-hacking/)
LED Flame Illuminates the Beauty of Noise
https://hackaday.com/2019/12/28/led-flame-illuminates-the-beauty-of-noise/
Have you ever wrapped up a nice blinky project only to be disappointed by the predictability of the light or the color patterns? When it came to lighting this LED candle, so was [fungus amungus]. But there’s a better way, and it involves noise.
Perlin noise was created in the …read more (https://hackaday.com/2019/12/28/led-flame-illuminates-the-beauty-of-noise/)
https://hackaday.com/2019/12/28/led-flame-illuminates-the-beauty-of-noise/
Have you ever wrapped up a nice blinky project only to be disappointed by the predictability of the light or the color patterns? When it came to lighting this LED candle, so was [fungus amungus]. But there’s a better way, and it involves noise.
Perlin noise was created in the …read more (https://hackaday.com/2019/12/28/led-flame-illuminates-the-beauty-of-noise/)
Subterranean Uses for LIDAR: Cave Surveys
https://hackaday.com/2019/12/28/subterranean-uses-for-lidar-cave-surveys/
LIDAR has gained much popularity as a means for self-driving cars to survey the space around them. At their most basic, LIDAR is a surveying method that uses lasers to paints the space around the sensors and assembles the distances measured from reflected light into a digital three-dimensional representation. That’s …read more (https://hackaday.com/2019/12/28/subterranean-uses-for-lidar-cave-surveys/)
https://hackaday.com/2019/12/28/subterranean-uses-for-lidar-cave-surveys/
LIDAR has gained much popularity as a means for self-driving cars to survey the space around them. At their most basic, LIDAR is a surveying method that uses lasers to paints the space around the sensors and assembles the distances measured from reflected light into a digital three-dimensional representation. That’s …read more (https://hackaday.com/2019/12/28/subterranean-uses-for-lidar-cave-surveys/)
Building A Spinning Moiré Effect Lamp
https://hackaday.com/2019/12/28/building-a-spinning-moire-effect-lamp/
Moiré patterns are interference patterns created when grids of different size or alignment are placed over each other. You’ve probably seen these when photographing a TV screen or looking through a pair of windows screens at the same time. [ChrysN] put the effect to work with this spinning Moiré lamp …read more (https://hackaday.com/2019/12/28/building-a-spinning-moire-effect-lamp/)
https://hackaday.com/2019/12/28/building-a-spinning-moire-effect-lamp/
Moiré patterns are interference patterns created when grids of different size or alignment are placed over each other. You’ve probably seen these when photographing a TV screen or looking through a pair of windows screens at the same time. [ChrysN] put the effect to work with this spinning Moiré lamp …read more (https://hackaday.com/2019/12/28/building-a-spinning-moire-effect-lamp/)