2020. 1. 28. 02:08ㆍ카테고리 없음
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Our browser made a total of 83 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Kipdeluxe.com, 5% (4 requests) were made to Fonts.gstatic.com and 4% (3 requests) were made to Fonts.googleapis.com. Mac news, software, tips, and gear. MacRumors attracts a broad audience of both consumers and professionals interested in the latest technologies and products. The best blogging tools for the Mac. And start posting. You can adjust your blog’s settings, and you can even tweak its layout (a bit), without digging into any code. Type or WordPress.
Electronics enthusiasts have the opportunity to be on the very cusp of a trend with vintage digital watches (VDW). Vintage digital watches are those watches that from the late 70’s and throughout the 80’s. They’re unlike any watch style today, and for anyone around when they made their debut these deliver a healthy dose of nostalgia. Monetarily speaking, it is not worth the money to pay a watch maker to restore a digital watch but for those of us with basic electronics skills we can put the time and effort into making them run again and be one of the few in possession of functioning VDW. It’s a statement as well as a sign of your own aptitude.
Earlier this year, Steven Dufresne. In this article we will dive into the world of vintage digital watch repair. Posted in, Tagged,. Levitation has a way of arousing curiousity and wonder wherever it appears. There’s a multitude of ways to do it, each with their own strengths and weaknesses and ideal use cases. The build relies on an astounding number of ultrasonic transducers – 72, in fact. The device operates at 40 kHz to be well above the human range of hearing.
36 each are placed in the top and bottom shells of the device’s 3D printed chassis. Through careful construction, the transducers are placed an integer multiple of half the wavelength apart. This allows the device to create a standing wave, with several low-energy nodes in which small objects can be levitated. In this case, Julius uses small scraps of styrofoam, but notes that water droplets can also be used if one is careful to avoid spilling any on the electronics. The transducers are energised with a square wave generated by an Arduino Nano. This allows the possibility of the frequency and phase of the wave to be altered, which can help tune the device and allow some movement in the vertical axis. Unfortunately, movement in the other axes isn’t possible as the transducers appear to be connected in parallel.
However, this could be a good upgrade in a later revision. This project shows that a device relying on incredibly precise measurement and control can now be constructed at home with a 3D printer and some off the shelf electronics. Now that you’ve whet your whistle, Thanks to Baldpower for the tip! Posted in Tagged,. Right now, we’ve got artistic PCBs, we’ve got #badgelife, and we have reverse-mounted LEDs that shine through the fiberglass substrate. All of this is great for PCBs that are functional works of art.
Artists, though, need to keep pushing boundaries and the next step is obviously a PCB that doesn’t look like it has any components at all. We’re not quite there yet, but Stephan sent in a project that’s the closest we’ve seen yet. It’s a PCB where all the components. A 2D PCB, if you will. Stephen’s project is somewhat simple as far as a #badgelife project goes.
It’s a Christmas ornament, powered by two coin cells, hosting an ATTiny25 and blinking two dozen LEDs via Charlieplexing. The PCB was made in KiCAD, with some help from Inkscape and Gimp. So far, so good. Castellated edges, containing a part The trick is mounting all the components in this project so they don’t poke out above the surface of the board.
This is done by milling a rectangular hole where every part should go and adding castellated pads to one side of the hole. The parts are then soldered in one at a time against these castellated pads, so the thickness of the completed, populated board is just the thickness of the PCB. The parts used in this project are standard jellybean parts, but there are a few ways to improve the implementation of this project. The LEDs, but side-emitting LEDs do exist. If you’d like to take this idea further, it could be possible to create a sandwich of PCBs, with the middle layer full of holes for components. These layers of PCBs can then be soldered or epoxied together to make a PCB that actually does something, but doesn’t look like it does.
This technique is done in extremely high-end PCBs, but it’s expensive as all get out. Still, this is a great example of what can be done with standard PCB processes and boards ordered from a random fab house. It also makes for a great Christmas ornament and pushes the boundaries of what can be done with PCB art.
Posted in, Tagged. Here’s an interesting thought: it’s possible to build a cubesat for perhaps ten thousand dollars, and hitch a ride on a launch for free thanks to a NASA outreach program. Tracking that satellite along its entire orbit would require dozens or hundreds of ground stations, all equipped with antennas and a connection to the Internet. Getting your data down from a cubesat actually costs more than building a satellite.
This is the observation someone at Amazon must have made., a system designed to downlink data from cubesats and other satellites across an entire orbit. Right now, Amazon only has two ground stations attached, but they plan to have a dozen in place by the middle of next year. Each of these ground stations are associated with a particular AWS region (there are a total of sixteen AWS regions, which might limit the orbital coverage of the AWS Ground Station system), and consists of an antenna, an alt-az mount, and a gigantic bank of servers and hard drives to capture data from satellites orbiting overhead.
The Amazon blog post goes over how easy it is to capture data from a satellite, and it’s as easy as getting a NORAD ID, logging into your AWS account, and clicking a few buttons. It should go without mention that this is the exact same idea behind, an Open Source global network of satellite ground stations and winner of the. One of their ground stations is what’s pictured at the top if this article.
Right now, SatNOGS, including a few stations that are in very useful locations like the. The SatNOGS network already has a lot more coverage than the maximum of sixteen locations where Amazon has their data centers — made possible by its open nature. Congrats to the SatNOGS team once again for creating something so useful, and doing it four years before Amazon. Posted in Tagged,. We’ve seen our fair share of soft silicone robots around here. Typically they are produced through a casting process, where molds are printed and then filled with liquid silicone to form the robot parts. These parts are subsequently removed from the molds and made to wiggle, grip, and swim through the use of pneumatic or hydraulic pumps and valves., by extruding silicone, layer by layer, into a gel-filled tank.
The Self-Assembly Lab’s site is unfortunately light on details, but there is a (behind a paywall, alas) that documents the process. From the abstract, it seems the printing process is intended for more general purpose printing needs, and is able to print any “photo or chemically cured” material, including two-part mixtures. Additionally, because of the gel-filled tank, the material need not be deposited in flat layers like a traditional 3D-printer.
More interesting shapes and material properties could be created by using the full 3d-volume to do 3D extrusion paths. To see some of the creative shapes and mechanisms developed by MIT using this process, check out the two aesthetically pleasing videos of pulsating soft white silicone shapes after the break.
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Posted in Tagged. Drone racing comes in different shapes and sizes, and some multirotor racers can be very small indeed. Racing means having gates to fly though, and here’s a clever DIY design by Qgel that uses a small 3D printed part and a segment of printer filament as the components for.
The base is 3D printed as a single piece and is not fussy about tolerances, meanwhile the gate itself is formed from a segment of printer filament. Size is easily adjusted, they disassemble readily, are cheap to produce, and take up very little space. In short, perfect for its intended purpose. Races benefit from being able to measure lap time, and that led to, complete with a desktop client for managing the data. Not all flying is about racing, but pilots with racing skills were key to getting results in.
Finally, those who still feel that using the word “drone” to include even palm-sized racers is too broad of a use may be interested in Brian Benchoff’s research into and its historically broad definition. Posted in, Tagged,. We always think that crossing the Atlantic in a blimp would be very serene — at least once they put heaters on board. The Hindenburg, the R-101, and the Shenandoah put an end to the age of the airship, at least for commercial passenger travel.
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But you can still fly your own with a helium balloon and some electronics. One notable project — the Blimpduino — has evolved into the.
The open-source software is on. We couldn’t find the PCB layout, so we aren’t sure if it is or will be open. The are available, though.
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The PCB is the heart of the matter, a four-layer board with an ARM M0 processor, an ESP8266 WiFi module, four motor outputs, two servo motor outputs, a 9-axis inertial navigation system, an altimeter, and a forward object detection system. There’s also a battery charger onboard. Posted in, Tagged, Posts navigation.