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Articles on this Page
- 06/20/18--13:00: _A CNC Plasma Cutter...
- 06/20/18--14:30: _This Weekend: The E...
- 06/20/18--16:00: _Trackball Gets Bolt...
- 06/21/18--08:30: _Clock This! A 3D-Pr...
- 06/21/18--10:00: _This Is The Year Co...
- 06/21/18--11:30: _CNC Mod Pack Hopes ...
- 06/21/18--13:00: _Simple Camera Slide...
- 06/21/18--16:00: _Is It A Golden Gun ...
- 06/23/18--04:00: _A MIDI Sequencer To...
- 06/23/18--07:00: _Digitizing Domesday...
- 06/23/18--10:00: _Arduino and Pidgin C++
- 06/23/18--13:00: _ROPS Will Be The Bo...
- 06/23/18--16:00: _Roll Your Own Track...
- 06/24/18--04:00: _Walking Through MRI...
- 06/24/18--07:00: _Modular Robotics Th...
- 06/24/18--10:00: _An Artsy and Functi...
- 06/24/18--13:00: _LoRa With The ESP32
- 06/24/18--16:00: _Hackaday Links: Jun...
- 06/25/18--08:30: _Dust to Dust and Je...
- 06/25/18--10:01: _A Real Time Data Co...
- 06/20/18--13:00: A CNC Plasma Cutter Table, From The Shop Floor Up
- 06/20/18--14:30: This Weekend: The East Coast RepRap Festival
- 06/20/18--16:00: Trackball Gets Bolt-On Button Upgrade
- 06/21/18--08:30: Clock This! A 3D-Printed Escapement Mechanism
- 06/21/18--10:00: This Is The Year Conference Badges Get Their Own Badges
- 06/21/18--13:00: Simple Camera Slider Adds a Dimension or Two to Your Shots
- 06/21/18--16:00: Is It A Golden Gun If It’s Made Out Of Brass?
- 06/23/18--04:00: A MIDI Sequencer To Be Proud Of
- 06/23/18--07:00: Digitizing Domesday Disks
- 06/23/18--10:00: Arduino and Pidgin C++
- 06/23/18--13:00: ROPS Will Be The Board x86 Robot Builders Are Waiting For
- 06/23/18--16:00: Roll Your Own Trackball Mouse
- 06/24/18--04:00: Walking Through MRIs With A Vive
- 06/24/18--07:00: Modular Robotics That Can Make Themselves Into Anything
- 06/24/18--10:00: An Artsy and Functional LED Filament Lamp
- 06/24/18--13:00: LoRa With The ESP32
- 06/24/18--16:00: Hackaday Links: June 24, 2018
- 06/25/18--08:30: Dust to Dust and Jello to Jello: the Journey of a Very Strange Knife
- 06/25/18--10:01: A Real Time Data Compression Technique
Some projects are simple, some focus on precision and craftsmanship, and some are more of the quick-and-dirty variety. This home-built CNC plasma cutter table seems to follow a “go big or go home” philosophy, and we have to say we’re mighty impressed by the finished product.
For those who follow [Bob]’s “Making Stuff” YouTube channel, this build has been a long time coming. The playlist below has eight videos that cover the entire process from cutting the first tubes of the welded frame to the initial test cuts with the finished machine. [Bob] took great pains to make the frame …read moreContinue reading
Are you around Philly, Baltimore, or DC, and looking for something fun to do this weekend? Great news, because Saturday sees the start of the first inaugural East Coast RepRap Festival in Bel Air, Maryland. Eh, we’ll grab some Bohs and boil up some crabs. It’ll be a great time.
Regular readers of Hackaday should have heard of MRRF, the Midwest RepRap Festival, and the greatest 3D printer convention on the planet. There’s a reason it’s so good: it’s not a trade show. It’s simply everyone in the business and a ton of cool people heading out to the middle …read moreContinue reading
The question of whether to use a mouse versus a trackball is something of a Holy War on the level of Vi versus Emacs. We at Hackaday want no part of such things, use whatever you want, and leave us out of it. But we will go as far as to say that Team Trackball seems to take things mighty seriously. We’ve never met a casual trackball user: if they’ve got a trackball on their desk then get ready to hear all about it.
With that in mind, the lengths [LayeredDesigns] went to just to add a couple extra buttons …read moreContinue reading
Traditional mechanical clockmaking is an art that despite being almost the archetype of precision engineering skill, appears rarely in our world of hardware hackers. That’s because making a clock mechanism is hard, and it is for good reason that professional clockmakers serve a long apprenticeship to learn their craft.
Though crafting one by hand is no easy task, a clock escapement is a surprisingly simple mechanism. Simple enough in fact that one can be 3D-printed, and that is just what [j0z] has done with a model posted on Thingiverse.
The model is simply the escapement mechanism, so to make …read moreContinue reading
Over the last few years, the art and artistry of printed circuit boards has moved from business cards to the most desirable of all disposable electronics. I speak, of course, of badgelife. This is the community built on creating and distributing independent electronic conference badges at the various tech and security conferences around the globe.
Until now, badgelife has been a loose confederation of badgemakers and distributors outdoing themselves each year with ever more impressive boards, techniques, and always more blinky bling. The field is advancing so fast there is no comparison to what was being done in years past; …read moreContinue reading
It is probable that many of us have noticed a variety of very cheap CNC mills in the pages of Chinese tech websites and been sorely tempted. On paper or as pixels on your screen they look great, but certainly with the more inexpensive models there soon emerges a gap between the promise and the reality.
[Brandon Piner] hopes to address this problem, with his CNC Mod Pack, a series of upgrades to a cheap mill designed to make it into a much more useful tool. In particular he’s created a revised 3D-printed tool holder and a set of end …read moreContinue reading
Camera sliders are a popular build, and properly executed they can make for impressive shots for both time-lapse sequences or real-time action. But they seem best suited for long shots, as dollying a camera in a straight line just moves subjects close to the camera through the frame.
This slider with both pan and tilt axes can make moving close-ups a lot easier. With his extremely detailed build log, [Dejan Nedalkovski] shows how he went about building his with only the simplest of materials and tools. The linear rail is simply a couple of pieces of copper pipe supported by …read moreContinue reading
On today’s episode of ‘this is a really neat video that will soon be demonetized by YouTube’ comes this fantastic build from [John]. It is the Golden Gun, or at least it looks like a Golden Gun because it’s made out of melted down brass casings. It’s a masterclass demonstration of melting stuff down and turning a thirteen-pound blob of metal into a two-pound precision machined instrument.
This build began by simply cutting a wooden block, packing it in sand, and melting approximately 1425 shell casings of various calibers in a DIY furnace. The molten brass was then simply poured …read moreContinue reading
MIDI sequencers are surprisingly expensive, making them an excellent target for [RH Electronics] who has created a sixteen-step device. It supports up to eight playable parts per step, which can be either MIDI or drum triggers.
The case and front panel are built to a very high standard, and on a piece of stripboard within lies an ATmega644 which does all the MIDI work, an ATmega328 that runs the many LEDs, and an ATtiny85 that reads the front panel buttons. The whole is kept in sync by a timer on the 644 set to produce the required MIDI clock. There …read moreContinue reading
After the Norman invasion of England, William the Conqueror ordered a great reckoning of all the lands and assets owned. Tax assessors went out into the country, counted sheep and chickens, and compiled everything into one great tome. This was the Domesday Book, an accounting of everything owned in England nearly 1000 years ago. It is a vital source for historians and economists, and one of the most important texts of the Middle Ages.
In the early 1980s, the BBC set upon a new Domesday Project. Over one million people took part in compiling writings on history, geography, and social …read moreContinue reading
What do you program the Arduino in? C? Actually, the Arduino’s byzantine build processes uses C++. All the features you get from the normal libraries are actually C++ classes. The problem is many people write C and ignore the C++ features other than using object already made for them. Just like traders often used pidgin English as a simplified language to talk to non-English speakers, many Arduino coders use pidgin C++ to effectively code C in a C++ environment. [Bert Hubert] has a two-part post that isn’t about the Arduino in particular, but is about moving from C to a …read moreContinue reading
If your robot has outgrown a Raspberry Pi and only the raw computing power of an x86 motherboard will suffice, you are likely to encounter a problem with its interfaces. The days of ISA cards are long gone, and a modern PC is not designed to easily talk to noisy robot hardware. Accessible ports such as USB can have interfaces connected to them, but suffer from significant latency in the process.
A solution comes from ROPS, or Robot on a PCI-e Stick, a card that puts an FPGA on a blazing-fast PCI-e card that provides useful real-world interfaces such …read moreContinue reading
What do you do when you’re into trackball mice, but nothing out there is affordable or meets all your murine needs? You build one, of course. And if you’re like [Dangerously Explosive], who has a bunch of old optical mice squeaking around the shop, you can mix and match them to build the perfect one.
The mouse, which looks frozen mid-transformation into a rodential assassin, is a customized work of utilitarian art. Despite the excellent results, this project was not without its traps. [Dangerously] got really far into the build before discovering the USB interface chip was dead. Then he …read moreContinue reading
If you were to make a list of the most important technological achievements of the last 100 years, advanced medical imaging would probably have to rank right up near the top. The ability to see inside the body in exquisite detail is nearly miraculous, and in some cases life-saving.
Navigating through the virtual bodies generated by the torrents of data streaming out of something like a magnetic resonance imager (MRI) can be a challenge, though. This intuitive MRI slicer aims to change that and makes 3D walkthroughs of the human body trivially easy. [Shachar “Vice” Weis] doesn’t provide a great …read moreContinue reading
The greatest challenge of robotics is autonomy. Usually, this means cars that can drive themselves, a robotic vacuum that won’t drive down the stairs, or a rover on Mars that can drive on Mars. This project is nothing like that. Instead of building a robot with a single shape, this robot is made out of several modules that can self-assemble into different structures. It’s an organized fleet of robots, all helping each other, like an ant colony, or our future as Gray Goo.
If the idea of self-assembling modular robots sounds familiar, you’re right. The Dtto won the Grand Prize …read moreContinue reading
Some projects end up being more objet d’art than objet d’utile, and we’re fine with that — hacks can be beautiful too. Some hacks manage both, though, like this study in silicon and gallium under glass that serves as a bright and beautiful desk lamp.
There’s no accounting for taste, of course, but we really like the way [commanderkull]’s LED filament lamp turned out, and it’s obvious that a fair amount of work went into it. Five COB filament strips were suspended from a lacy frame made of wire, which also supports the custom boost converter needed to raise …read moreContinue reading
If you are interested in deploying LoRa — the low power long-range wireless technology — you might enjoy [Rui Santos’] project and video about using the ESP32 with the Arduino IDE to implement LoRa. You can see the video below. He uses the RFM95 transceivers with a breakout board, so even if you want to use a different processor, you’ll still find a lot of good information.
In fact, the video is just background on LoRa that doesn’t change regardless of the host computer you are using. Once you have all the parts, getting it to work is fairly simple. …read moreContinue reading
What do you do if you’re laying out a PCB, and you need to jump over a trace, but don’t want to use a via? The usual trick is using a zero Ohm resistor to make a bridge over a PCB trace. Zero Ohm resistors — otherwise known as ‘wire’ — are a handy tool for PCB designers who have backed themselves into a corner and don’t mind putting another reel on the pick and place machine. Here’s a new product from Keystone that is basically wire on a tape and reel. It’s designed to jump traces on a PCB …read moreContinue reading
How do you feel about Jello? It’s alright tasting, but it’s much more about how jiggly it gets. Nobody — probably — would eat Jello if it was a hard candy. It would quickly become restricted to the bowl of strawberry candies that Grandma always seems to have. How do you feel about knives? We’re on Hackaday. Most everybody here has at least a couple in their toolbox. Some of them have more than a couple, including the whetstones to sharpen them. It’s safe to say they probably like the concept. Now, what if you could combine the two? Two …read moreContinue reading
With more and more embedded systems being connected, sending state information from one machine to another has become more common. However, sending large packets of data around on the network can be bad both for bandwidth consumption and for power usage. Sure, if you are talking between two PCs connected with a gigabit LAN and powered from the wall, just shoot that 100 Kbyte packet across the network 10 times a second. But if you want to be more efficient, you may find this trick useful.
As a thought experiment, I’m going to posit a system that has a database …read moreContinue reading