High voltage is not something we usually tinker with at home. In fact, most of us are more comfortable working with non-lethal, low current, low voltage DC signals. When we do venture into the world of high voltage, we prefer to do it vicariously thru someone with more safety training and/or experience.
[Mike] shows us the inner workings of a 240VAC circuit breaker and explains how the different safety features in the device work. In proper MikesElectricStuff form, [Mike] finds out what it takes to destroy the device. Or in this case multiple devices, [Mike] uses his “Destruct-o-tron” to create catastrophic failure in more than one breaker. You can check out the video embedded after the break to learn a bit about how a circuit breaker works, and of course witness the carnage.
Continue reading “Inside A Circuit Breaker With MikesElectricStuff”
[Aaron Wypyszynski] or [Wyp] for short had a dream as a youngster about jumping out of a plane and “carving through the sky” (paraphrasing the video embedded after the break), so when he grew up [Wyp] went ahead and pursued that dream.
What that boyhood dream produced is [Wyp] offering to pull you through the sky on what looks like a proper model of a blunt nosed paper airplane glider. Seems to be a bit like wakeboarding for skydivers, cause that needed to be a thing.
Continue reading “WingBoard: Wakeboarding Behind an Airplane”
We follow [bunnie]’s blog as he posts interesting and usable information quite regularly. [bunnie] posted about a video of a recent talk he did at MIT Media Lab with Nadya Peek and Joi Ito. This was in lieu of his monthly “name that ware” competition, which is worth looking into as well.
The talk is focused on small volume manufacturing and the experiences that the speakers have under their collective belt is large enough that the conversation takes a turn from how to do things in practice, to the theory and technique of manufacturing on a philosophical level.
[bunnie] prefaces the conversation with an explanation of some of the design and manufacturing processes involved when working on the circuit stickers project. He talks about the importance of testing the product and the complex test jig that is required to quality check a simple (in comparison to the test jig) product. [bunnie] shares an overview of the project timeline and where some extended design stages might be found in unexpected places.
The design and manufacturing process is discussed on many levels throughout the talk. Among the points that are insightful, we certainly found ourselves a little jelly of all the time [bunnie] gets to spend in Shenzhen.
If you’re not familiar with [bunnie]’s blog you can check it out at www.bunniestudios.com. Pro Tip: you can spend the better part of your workday browsing topics in the sidebar on the right.
We have covered the MIT Media Lab before, including a trip to Shenzhen that is discussed in the Media Lab talk by [Joi] and [bunnie]. Another interesting interview at SXSW earlier this year by [Sophi Kravitz] who spoke with [Sunanda Sharma] about mediated matter.
Deep in the hills of the Democratic Republic of Congo, you’ll find men and women hard at work providing a living for their family. You might find some working in one of the nation’s mines which are rich in natural resources. Others will be working the farms or participating in one of many diverse cultural customs. If you head two hours via dirt road from the capital city of Kinshasa, however, you’ll find something a bit out of place for the area – an active space program.
On a vast yam farm, [Jean-Patrice Keka] has single-handedly developed several rockets that have flirted with the elusive zero gravity environment. [Mr. Keka’s] ‘Mission Control’ is a corrugated metal shed lined with CRT monitors and dated computers, but don’t let this fool you. His vision and drive are just as great as any space faring nation.
His intellect has made him a small fortune in commodities trading, and allows him the luxury to finance his operation without the need of government help. From time to time, he employs the help of local engineering students to get his rockets off the ground. Their payload has included rats and insects, with one launch reaching 10 miles of altitude and the current project aiming for 120 miles. [Mr. Keka] has become a national hero via the televised broadcasts of the launches, and has gotten the attention of national government officials. They even flew him to the US once to petition funding for his work.
[Mr. Keka] and his story should serve as an inspiration to all inspiring hackers and makers to pursue their dreams.
Thanks to [Cmh62] for the tip.
One of our tipsters stumbled across a pretty impressive video of a giant Tesla coil playing music — in a snowy forest! The forum showing off the video is in Finnish but Google Translate does a pretty good job getting the point across.
This massive Tesla coil dubbed the BiggerDR was built by [Kizmo], who lives way up north in Finland. He was originally inspired by another build and decided to try his hand at making one. The Tesla coil, detailed in another forum post (in English this time) has some pretty impressive specs. The coil alone has 1550 wraps! Not too mention a pretty impressive bank of capacitors in series…
His YouTube channel has some great videos of the build — in fact, he’s been messing around with Tesla coils for at least 7 years already — stick around after the break to see BiggerDR in action.
Continue reading “Massive Tesla Coil Plays Music in the Snow”
When we hear spectrometer, we usually think of some piece of high-end test equipment sitting in a CSI lab. Sure, a hacker could make one if he or she put their mind to it. But make one out of a webcam, some cheap diffraction grating purchased off ebay and some scrap? Surely not.
[Renaud] pulls off this MacGyver like build with a detailed knowledge of how spectrometers work. A diffraction grating is used to split the incoming light into its component wavelengths. Much like a prism would. The wavelengths then make their way through a slit, which [Renaud] made from two pieces of highly polished brass, so the webcam sensor can see a specific wavelength. While the spectrometer-from-webcam concept isn’t new, the build is still impressive.
Once the build was complete, [Renaud] put together some software to make sense of the data. Though a bit short on details, we hope this build will inspire you to make your own spectrometer, and document it on hackaday.io of course.
From tea sets to CD box sets, you’ll see the work of the Phillips Brothers mill on shelves all across the country. They make wooden boxes for just about any product imaginable. Interestingly, they do it the old-school way, with the entire factory powered by steam.
The wood for the boxes comes from the on-site mill, resawn and planed to the proper dimensions. These thin boards are then cut to size for each of the sides.
Most of the clients like to put their logo on their boxes, and the Phillips Brothers mill is more than happy to oblige. They brand one side of the box with a custom-made iron, permanently marking the box for the client.
The boxes are assembled with either staples or nails, enough to last for many, many years. No, there aren’t finger joints on these boxes, but with generations worth of experience in this factory, we’ll assume they know what they’re doing.