A Trove Of 3D Printer Filament Test Data

We’re not sure what a typical weekend at [Walter]’s house is like, but we can probably safely assume that any activity taking place is at minimum accompanied by the hum of a 3D printer somewhere in the background. Those of us who 3D print have had our experiences with bad rolls of filament.…... [Continue...]
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Hacklet 120 – Coffee Hacks

Hackers need fuel to hack. In general that fuel comes in the form of food, water, and caffeine. Not necessarily in that order. While soda or energy drinks will do in a pinch, the best hackers know that the purest form of caffeine comes from coffee. This of course means…... [Continue...]
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Hackerspacing: Making A Temperature Logger

The folks at Swindon Makerspace took possession of a new space a few months ago after a long time in temporary accommodation. They’ve made impressive progress making it their own, and are the envy of their neighbours. A small part of the new space is a temperature logger, and it’s…... [Continue...]
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We’re Fans of Dave’s Fans

Hackaday.io contributor extraordinaire [davedarko] gets hot in the summer. We all do. But what separates him from the casual hacker is that he beat the heat by ordering four 120 mm case fans. He then 3D printed a minimalistic tower frame for the fans, and tied them all together with a…... [Continue...]
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A VNA On A 200 Euro Budget

If you were to ask someone who works with RF a lot and isn’t lucky enough to do it for a commercial entity with deep pockets what their test instrument of desire would be, the chances are their response would mention a vector network analyser. A VNA is an instrument…... [Continue...]
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Hackaday Prize Entry: A Good Electronics Learning Toolkit

The Maker movement is a wildly popular thing, even if we can’t define what it is. The push towards STEM education is absolutely, without a doubt, completely unlike a generation of brogrammers getting a CS degree because of the money. This means there’s a market for kits to get kids interested…... [Continue...]
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DIY Smartwatch Based On ESP8266 Needs Classification

Building your own smartwatch is a fun challenge for the DIY hobbyist. You need to downsize your electronics, work with SMD components, etch your own PCBs and eventually squeeze it all into a cool enclosure. [Igor] has built his own ESP8266-based smartwatch, and even though he calls it a wrist display…... [Continue...]
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Wiggling Pokéball Detects Rare Pokémon

[TJ Hunter] wanted to find some of the rarer Pokémon without draining his smartphone battery while staring on a screen. The handy ø 25 cm Pokéball he built to make the endless marches more tolerable detects nearby Pokémon and wiggles to alert its owner if there’s a rare catch in sight. On the…... [Continue...]
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Hacking When It Counts: Spy Radios

World War II can be thought of as the first electronic war. Radio technology was firmly established commercially by the late 1930s and poised to make huge contributions to the prosecution of the war on all sides. Radio was rapidly adopted into the battlefield, which led to advancements in miniaturization and ruggedization…... [Continue...]
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Hedberg is a Bionic Hand Made From a Single Keurig

Developing into a modern hacker and tinkerer requires a lot of things: electronics study, programming knowledge, and patience (among many other things). But, the most important quality a hacker can have is curiosity. The desire to see how things work is what drives most budding hackers towards the dismantling of…... [Continue...]
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OTGW panel

Onno designed and built his own OTGW panel with Dirty Board PCBs: Added all together and had a working gateway. This gateway has also connections for status LED’s. However, I didn’t find anything about getting the LED’s connected and build in the housing. So there started the first idea of designing my…... [Continue...]
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From Project To Kit: Instructions Are Everything

We’ve had two previous articles in this series on turning a personal electronic project into a saleable kit, in which we’ve examined the kit market in a broader context for a new entrant, and gone on to take a look at the process of assembling the hardware required to create…... [Continue...]
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Tattoos by Robotic Arm With Pinpoint Accuracy

Tattoos are an ancient art, and as with most art, is usually the domain of human expertise. The delicate touch required takes years to master, but with the capacity for perfect accuracy and precision movements, enlisting a robotic arm and some clever software to tattoo a willing canvas is one…... [Continue...]
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Technically A Hack. Still Questionable. Remote Control Food.

We thought we were going to read an article about, perhaps, a quadcopter that could fetch beer, or donuts. What we got was more along the lines of a donut dragging itself across the floor, rendering it pitiful and advisibly indigestible. Sometimes people joke about not wanting to get in…... [Continue...]
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Hackaday Prize Entry: Autorouters Are For The Weak

[Yann]’s DYPLED entry into this year’s Hackaday Prize isn’t very useful to most people. It’s a tiny module that connects to a 16-bit parallel bus, and displays a hexadecimal number on a few LEDs. It’s useful if you’re diagnosing a problem on a computer from 1982, but just barely. The real…... [Continue...]
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Wake Up With A NeoPixel Sunrise Alarm Clock

Like many of us, [Lee] wakes up every morning grumpy and tired. Once he decided to try to do something about it, he settled on making a sunrise alarm clock using NeoPixels. Over the course of thirty minutes the clock illuminates 60 NeoPixels one by one in blue mode to simulate…... [Continue...]
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Stick Balances Itself With Reaction Wheels

The inverted pendulum is a pretty classic dynamics problem and reaction wheels are cool. That’s why we like [Mike Rouleau]’s self-balancing stick. The video, viewable after the break, was fairly sparse on details, but he furnished some in the comments. The little black box on the top is a GY-521 Gyroscope…... [Continue...]
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