Putting The Coanda Effect To Work On A Quadcopter
https://hackaday.com/2019/08/20/putting-the-coanda-effect-to-work-on-a-quadcopter/
The Coanda effect is an aerodynamic principle regarding the way fluids tend to flow along curved surfaces. This can be used to direct a flow, and [Tom Stanton] wanted to try out its application on a quadcopter. (Video embedded below.)
The project began by firing up the 3D printer, which …read more (https://hackaday.com/2019/08/20/putting-the-coanda-effect-to-work-on-a-quadcopter/)
https://hackaday.com/2019/08/20/putting-the-coanda-effect-to-work-on-a-quadcopter/
The Coanda effect is an aerodynamic principle regarding the way fluids tend to flow along curved surfaces. This can be used to direct a flow, and [Tom Stanton] wanted to try out its application on a quadcopter. (Video embedded below.)
The project began by firing up the 3D printer, which …read more (https://hackaday.com/2019/08/20/putting-the-coanda-effect-to-work-on-a-quadcopter/)
Echos of the Cold War: Nuclear-Powered Missiles Have Been Tried Before
https://hackaday.com/2019/08/20/echos-of-the-cold-war-nuclear-powered-missiles-have-been-tried-before/
On August 8th, an experimental nuclear device exploded at a military test facility in Nyonoksa, Russia. Thirty kilometers away, radiation levels in the city of Severodvinsk reportedly peaked at twenty times normal levels for the span of a few hours. Rumors began circulating about the severity of the event, and …read more (https://hackaday.com/2019/08/20/echos-of-the-cold-war-nuclear-powered-missiles-have-been-tried-before/)
https://hackaday.com/2019/08/20/echos-of-the-cold-war-nuclear-powered-missiles-have-been-tried-before/
On August 8th, an experimental nuclear device exploded at a military test facility in Nyonoksa, Russia. Thirty kilometers away, radiation levels in the city of Severodvinsk reportedly peaked at twenty times normal levels for the span of a few hours. Rumors began circulating about the severity of the event, and …read more (https://hackaday.com/2019/08/20/echos-of-the-cold-war-nuclear-powered-missiles-have-been-tried-before/)
Behold the Crimson Axlef*cker (Do Not Insert Finger)
https://hackaday.com/2019/08/20/behold-the-crimson-axlefcker-do-not-insert-finger/
Are your aluminum extrusions too straight? The Crimson Axlef*cker can help you out. It’s a remarkable 3D printed, 4-stage, 125:1 reduction gearbox driven by a brushless motor. Designer [jlittle988] decided to test an early prototype to destruction and while he was expecting something to break, he didn’t expect it to …read more (https://hackaday.com/2019/08/20/behold-the-crimson-axlefcker-do-not-insert-finger/)
https://hackaday.com/2019/08/20/behold-the-crimson-axlefcker-do-not-insert-finger/
Are your aluminum extrusions too straight? The Crimson Axlef*cker can help you out. It’s a remarkable 3D printed, 4-stage, 125:1 reduction gearbox driven by a brushless motor. Designer [jlittle988] decided to test an early prototype to destruction and while he was expecting something to break, he didn’t expect it to …read more (https://hackaday.com/2019/08/20/behold-the-crimson-axlefcker-do-not-insert-finger/)
Circuit VR: Advanced Falstad Logic with Geniac
https://hackaday.com/2019/08/20/circuit-vr-advanced-falstad-logic-with-geniac/
I find that if I’m trying to make a point with a student or a colleague about a circuit, sometimes the Falstad online simulator is worth a few thousand words. You can draw the circuit, play with the values, and even see the current flow in an intuitive way as …read more (https://hackaday.com/2019/08/20/circuit-vr-advanced-falstad-logic-with-geniac/)
https://hackaday.com/2019/08/20/circuit-vr-advanced-falstad-logic-with-geniac/
I find that if I’m trying to make a point with a student or a colleague about a circuit, sometimes the Falstad online simulator is worth a few thousand words. You can draw the circuit, play with the values, and even see the current flow in an intuitive way as …read more (https://hackaday.com/2019/08/20/circuit-vr-advanced-falstad-logic-with-geniac/)
Lithophanes Ditch the Monochrome with a Color Layer
https://hackaday.com/2019/08/20/lithophanes-ditch-the-monochrome-with-a-color-layer/
3D printed lithophanes are great, if a bit monochromatic. [Thomas Brooks] (with help from [Jason Prius]) changed all that with a tool for creating color lithophanes but there’s a catch: you’ll need a printer capable of creating multi-color prints to do it.
A video (embedded below) begins with an intro …read more (https://hackaday.com/2019/08/20/lithophanes-ditch-the-monochrome-with-a-color-layer/)
https://hackaday.com/2019/08/20/lithophanes-ditch-the-monochrome-with-a-color-layer/
3D printed lithophanes are great, if a bit monochromatic. [Thomas Brooks] (with help from [Jason Prius]) changed all that with a tool for creating color lithophanes but there’s a catch: you’ll need a printer capable of creating multi-color prints to do it.
A video (embedded below) begins with an intro …read more (https://hackaday.com/2019/08/20/lithophanes-ditch-the-monochrome-with-a-color-layer/)
A Range-Extended Electric Van
https://hackaday.com/2019/08/20/a-range-extended-electric-van/
The only thing limiting the range on any electric vehicle isn’t really battery technology, but cost. Customers don’t want to pay more money for an electric car or van that does essentially the same thing as one with an internal combustion engine. This in turn limits the amount of batteries …read more (https://hackaday.com/2019/08/20/a-range-extended-electric-van/)
https://hackaday.com/2019/08/20/a-range-extended-electric-van/
The only thing limiting the range on any electric vehicle isn’t really battery technology, but cost. Customers don’t want to pay more money for an electric car or van that does essentially the same thing as one with an internal combustion engine. This in turn limits the amount of batteries …read more (https://hackaday.com/2019/08/20/a-range-extended-electric-van/)
Get Ready For Games Night With 3D Catan
https://hackaday.com/2019/08/20/get-ready-for-games-night-with-3d-catan/
Settlers of Catan is a staple for boardgaming aficionados. Some fans like to express themselves by building a custom set of their own, and [Maclsk] is no different. Enter 3D Catan!
The models for the various pieces were designed in Blender, a great open source 3D modelling program. They were …read more (https://hackaday.com/2019/08/20/get-ready-for-games-night-with-3d-catan/)
https://hackaday.com/2019/08/20/get-ready-for-games-night-with-3d-catan/
Settlers of Catan is a staple for boardgaming aficionados. Some fans like to express themselves by building a custom set of their own, and [Maclsk] is no different. Enter 3D Catan!
The models for the various pieces were designed in Blender, a great open source 3D modelling program. They were …read more (https://hackaday.com/2019/08/20/get-ready-for-games-night-with-3d-catan/)
Dirty Tricks For 6502 Programming
https://hackaday.com/2019/08/20/dirty-tricks-for-6502-programming/
We know the 6502 isn’t exactly the CPU of choice for today’s high-performance software, but with the little CPU having appeared in so many classic computers — the Apple, the KIM-1, The Commodores, to name a few — we have a real soft spot for it. [Janne] has a post …read more (https://hackaday.com/2019/08/20/dirty-tricks-for-6502-programming/)
https://hackaday.com/2019/08/20/dirty-tricks-for-6502-programming/
We know the 6502 isn’t exactly the CPU of choice for today’s high-performance software, but with the little CPU having appeared in so many classic computers — the Apple, the KIM-1, The Commodores, to name a few — we have a real soft spot for it. [Janne] has a post …read more (https://hackaday.com/2019/08/20/dirty-tricks-for-6502-programming/)
Rocket Jacket Looks Sharp For CCCamp 2019
https://hackaday.com/2019/08/20/rocket-jacket-looks-sharp-for-cccamp-2019/
Making your own clothing can be fun, but it’s even better if you can throw some LEDs into the mix and give a new meaning to the term “glow up”. [arturo182] did just that with this custom rocket jacket for CCCamp2019.
To create the jacket, a 3D printed frame was …read more (https://hackaday.com/2019/08/20/rocket-jacket-looks-sharp-for-cccamp-2019/)
https://hackaday.com/2019/08/20/rocket-jacket-looks-sharp-for-cccamp-2019/
Making your own clothing can be fun, but it’s even better if you can throw some LEDs into the mix and give a new meaning to the term “glow up”. [arturo182] did just that with this custom rocket jacket for CCCamp2019.
To create the jacket, a 3D printed frame was …read more (https://hackaday.com/2019/08/20/rocket-jacket-looks-sharp-for-cccamp-2019/)
Sushi Roll Helps Inspect Your CPU Internals
https://hackaday.com/2019/08/21/sushi-roll-helps-inspect-your-cpu-internals/
[Gamozolabs’] post about Sushi Roll — a research kernel for monitoring Intel CPU internals — is pretty long. While we were disappointed at the end that the kernel’s source is not exactly available due to “sensitive features”, we were so impressed with the description of the modern x86 architecture and …read more (https://hackaday.com/2019/08/21/sushi-roll-helps-inspect-your-cpu-internals/)
https://hackaday.com/2019/08/21/sushi-roll-helps-inspect-your-cpu-internals/
[Gamozolabs’] post about Sushi Roll — a research kernel for monitoring Intel CPU internals — is pretty long. While we were disappointed at the end that the kernel’s source is not exactly available due to “sensitive features”, we were so impressed with the description of the modern x86 architecture and …read more (https://hackaday.com/2019/08/21/sushi-roll-helps-inspect-your-cpu-internals/)
Launching a Custom Kerbal Panel
https://hackaday.com/2019/08/21/launching-a-custom-kerbal-panel/
[Matthew Peverill] is a busy PhD student who loves to make time for a little Kerbal Space Program. He was tired of using such pedestrian controls as a keyboard and mouse for such important work, and wanted something a little more like they have down in Houston.
For this project, …read more (https://hackaday.com/2019/08/21/launching-a-custom-kerbal-panel/)
https://hackaday.com/2019/08/21/launching-a-custom-kerbal-panel/
[Matthew Peverill] is a busy PhD student who loves to make time for a little Kerbal Space Program. He was tired of using such pedestrian controls as a keyboard and mouse for such important work, and wanted something a little more like they have down in Houston.
For this project, …read more (https://hackaday.com/2019/08/21/launching-a-custom-kerbal-panel/)
Fantastic Micrometeorites And Where To Find Them
https://hackaday.com/2019/08/21/fantastic-micrometeorites-and-where-to-find-them/
Space is very much the final frontier for humanity, at least as far as our current understanding of the universe takes us. Only a handful of countries and corporations on Earth have the hardware to readily get there, and even fewer are capable of reaching orbit. For these reasons, working …read more (https://hackaday.com/2019/08/21/fantastic-micrometeorites-and-where-to-find-them/)
https://hackaday.com/2019/08/21/fantastic-micrometeorites-and-where-to-find-them/
Space is very much the final frontier for humanity, at least as far as our current understanding of the universe takes us. Only a handful of countries and corporations on Earth have the hardware to readily get there, and even fewer are capable of reaching orbit. For these reasons, working …read more (https://hackaday.com/2019/08/21/fantastic-micrometeorites-and-where-to-find-them/)
Hello: A Mini Badge For CCCamp
https://hackaday.com/2019/08/21/hello-a-mini-badge-for-cccamp/
Badgelife culture is our community’s very own art form, with a plethora of designs coming forth featuring stunning artwork, impressive hardware, and clever software tricks. But sometimes a badge doesn’t need a brace of LEDs or a meme-inspired appearance to be a success, it just needs to be very good …read more (https://hackaday.com/2019/08/21/hello-a-mini-badge-for-cccamp/)
https://hackaday.com/2019/08/21/hello-a-mini-badge-for-cccamp/
Badgelife culture is our community’s very own art form, with a plethora of designs coming forth featuring stunning artwork, impressive hardware, and clever software tricks. But sometimes a badge doesn’t need a brace of LEDs or a meme-inspired appearance to be a success, it just needs to be very good …read more (https://hackaday.com/2019/08/21/hello-a-mini-badge-for-cccamp/)
The Badgies: Clever, Crazy, and Creative Ideas in Electronic Design
https://hackaday.com/2019/08/21/the-badgies-clever-crazy-and-creative-ideas-in-electronic-design/
Engineering creativity comes to life when you have to design around a set of constraints. We can do just about anything with enough time, talent, and treasure, but what can you do when shackled with limitations? Some of the most creative electronic manufacturing tricks spring to life when designing conference …read more (https://hackaday.com/2019/08/21/the-badgies-clever-crazy-and-creative-ideas-in-electronic-design/)
https://hackaday.com/2019/08/21/the-badgies-clever-crazy-and-creative-ideas-in-electronic-design/
Engineering creativity comes to life when you have to design around a set of constraints. We can do just about anything with enough time, talent, and treasure, but what can you do when shackled with limitations? Some of the most creative electronic manufacturing tricks spring to life when designing conference …read more (https://hackaday.com/2019/08/21/the-badgies-clever-crazy-and-creative-ideas-in-electronic-design/)
Russian Robot To Visit Space Station
https://hackaday.com/2019/08/21/russian-robot-to-visit-space-station/
The Russians were the first to send a dog into space, the first to send a man, and the first to send a woman. However, NASA sent the first humanoid robot to the International Space Station. The Russians, though, want to send FEDOR and proclaim that while Robonaut flew as …read more (https://hackaday.com/2019/08/21/russian-robot-to-visit-space-station/)
https://hackaday.com/2019/08/21/russian-robot-to-visit-space-station/
The Russians were the first to send a dog into space, the first to send a man, and the first to send a woman. However, NASA sent the first humanoid robot to the International Space Station. The Russians, though, want to send FEDOR and proclaim that while Robonaut flew as …read more (https://hackaday.com/2019/08/21/russian-robot-to-visit-space-station/)
Automatic Rewinder Makes Kite Retrieval A Breeze
https://hackaday.com/2019/08/21/automatic-rewinder-makes-kite-retrieval-a-breeze/
So you’ve built a fine kite, taken it to the beach, and let it ride the wind aloft on a spool of line. Eventually it has to come down, and the process of reeling all that line that was so easily paid out is likely a bigger chore than you …read more (https://hackaday.com/2019/08/21/automatic-rewinder-makes-kite-retrieval-a-breeze/)
https://hackaday.com/2019/08/21/automatic-rewinder-makes-kite-retrieval-a-breeze/
So you’ve built a fine kite, taken it to the beach, and let it ride the wind aloft on a spool of line. Eventually it has to come down, and the process of reeling all that line that was so easily paid out is likely a bigger chore than you …read more (https://hackaday.com/2019/08/21/automatic-rewinder-makes-kite-retrieval-a-breeze/)
Largest Chip Ever Holds 1.2 Trillion Transistors
https://hackaday.com/2019/08/21/largest-chip-ever-holds-1-2-trillion-transistors/
We get it, press releases are full of hyperbole. Cerebras recently announced they’ve built the largest chip ever. The chip has 400,000 cores and contains 1.2 trillion transistors on a die over 46,000 square mm in area. That’s roughly the same as a square about 8.5 inches on each side. …read more (https://hackaday.com/2019/08/21/largest-chip-ever-holds-1-2-trillion-transistors/)
https://hackaday.com/2019/08/21/largest-chip-ever-holds-1-2-trillion-transistors/
We get it, press releases are full of hyperbole. Cerebras recently announced they’ve built the largest chip ever. The chip has 400,000 cores and contains 1.2 trillion transistors on a die over 46,000 square mm in area. That’s roughly the same as a square about 8.5 inches on each side. …read more (https://hackaday.com/2019/08/21/largest-chip-ever-holds-1-2-trillion-transistors/)
A Cheap And Cheerful Geiger Counter Build
https://hackaday.com/2019/08/21/a-cheap-and-cheerful-geiger-counter-build/
Hackers often have broad interests across the sciences, of which nuclear topics are no exception. The Geiger counter remains a popular build, and could be a handy tool to have in a time of rising tensions between nuclear powers. [Leonora Tindall] had tinkered with basic units, but wanted a better …read more (https://hackaday.com/2019/08/21/a-cheap-and-cheerful-geiger-counter-build/)
https://hackaday.com/2019/08/21/a-cheap-and-cheerful-geiger-counter-build/
Hackers often have broad interests across the sciences, of which nuclear topics are no exception. The Geiger counter remains a popular build, and could be a handy tool to have in a time of rising tensions between nuclear powers. [Leonora Tindall] had tinkered with basic units, but wanted a better …read more (https://hackaday.com/2019/08/21/a-cheap-and-cheerful-geiger-counter-build/)
Electric Dump Truck Produces More Energy Than it Uses
https://hackaday.com/2019/08/22/electric-dump-truck-produces-more-energy-than-it-uses/
Electric vehicles are everywhere now. It’s more than just Leafs, Teslas, and a wide variety of electric bikes. It’s also trains, busses, and in this case, gigantic dump trucks. This truck in particular is being put to work at a mine in Switzerland, and as a consequence of having an …read more (https://hackaday.com/2019/08/22/electric-dump-truck-produces-more-energy-than-it-uses/)
https://hackaday.com/2019/08/22/electric-dump-truck-produces-more-energy-than-it-uses/
Electric vehicles are everywhere now. It’s more than just Leafs, Teslas, and a wide variety of electric bikes. It’s also trains, busses, and in this case, gigantic dump trucks. This truck in particular is being put to work at a mine in Switzerland, and as a consequence of having an …read more (https://hackaday.com/2019/08/22/electric-dump-truck-produces-more-energy-than-it-uses/)
Returning Digital Watches To the Analog Age: Enter The Charliewatch
https://hackaday.com/2019/08/22/returning-digital-watches-to-the-analog-age-enter-the-charliewatch/
The Charliewatch by [Trammell Hudson] is one of those projects which is beautiful in both design and simplicity. After seeing [Travis Goodspeed]’s GoodWatch21 digital watch project based around a Texas Instruments MSP430-based SoC, [Trammell] decided that it’d be neat if it was more analog. This is accomplished using the CC430F5137IRGZR …read more (https://hackaday.com/2019/08/22/returning-digital-watches-to-the-analog-age-enter-the-charliewatch/)
https://hackaday.com/2019/08/22/returning-digital-watches-to-the-analog-age-enter-the-charliewatch/
The Charliewatch by [Trammell Hudson] is one of those projects which is beautiful in both design and simplicity. After seeing [Travis Goodspeed]’s GoodWatch21 digital watch project based around a Texas Instruments MSP430-based SoC, [Trammell] decided that it’d be neat if it was more analog. This is accomplished using the CC430F5137IRGZR …read more (https://hackaday.com/2019/08/22/returning-digital-watches-to-the-analog-age-enter-the-charliewatch/)