Well, it is, and you can! Because, [Gavin] over at tinkerings.org (a Hackaday favorite) has created the files to do just that! This map projection, originally designed by the very interesting Buckminster Fuller, is designed to be either laid flat or three-dimensionally on an icosahedron (a 20-sided polyhedron). That makes it perfect for laser cutting, as each of the 20 faces can be cut from flat stock.
The usefulness of Raspberry Pis seems almost limitless, with new applications being introduced daily and with no end in sight. But, as versatile as they are, it's no secret that Raspberry Pis are still lacking in pure processing power. So, some serious optimization is needed to squeeze as much power out of the Raspberry Pi as possible when you're working on processor-intensive projects.
This simplest way to accomplish this optimization, of course, is to simply reduce what's running down to the essentials. For example, there's no sense in running a GUI if your project doesn't even use a display. Another strategy, however, is to ensure that you're actually using all of the available processing power that the Raspberry Pi offers. In [sagiz's] case, that meant using Intel's open source Threading Building Blocks to achieve better parallelism in his OpenCV project.
We recently gave you some tips on purchasing your first milling machine, but what we didn't touch on was CNC (Computer Numerical Control) systems for milling machines (or other machines, like lathes). That's because CNC is a complex topic, and it's deserving of its own article. So, today we dive into what CNC is, how it works, and ultimately if it's right for you as a hobbyist.
Arcade cabinets are a lot of fun, and something most of us would probably like in our homes. Unfortunately, space and decor constraints often make them impractical. Or, at least, that's what our significant others tell us. Surely there must be a workaround, right?
Right! In this case, the workaround [sid981] came up with was to build a RetroPie arcade into a fancy looking wine barrel. The electronics are pretty much what you'd expect for a RetroPie system, and the screen is set into the top of the barrel. Control is handled by a wireless controller that can be tucked away when it's not in use, and a glass top simultaneously protects the screen and lets guests use the barrel as a bar table.