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Tired of 3D printers that use t-slot construction? The Eventorbot is yet another open source 3D printer, but it's built out of steel and 3D printable parts. The design also aims to minimize the effect of vibrations by using a single solid frame. All of the wiring runs through the steel frame, which gives the printer a professional look. The Eventorbot page on the RepRap wiki provides details … [Read more...]
Eight long years ago, when the Martian rovers Spirit and Opportunity were steaming towards our dusty neighbor, JPL systems engineers [Julie Townsend] and [Scott Doudrick] were stuck trying to solve a very strange problem. After the twin rovers landed, the rover drivers would have to live on Mars time. Because a Martian day lasts 24 hours, 39 minutes, rover team members would have to report to … [Read more...]
When you think of DIY hardware, genetic research tools are not something that typically comes to mind. But [Stacey] and [Matt]'s OpenPCR project aims to enable anyone to do polymerase chain reaction (PCR) research on the cheap. PCR is a process that multiplies a specific piece of DNA a few million times. It can be used for many purposes, including DNA cloning and DNA fingerprinting for … [Read more...]
For all the Arduino-based video game builds we've seen, we're really only left with a bunch of 2D platformers and other sprite-based games. [Reimecker] wasn't satisfied with this level of computational complexity, so he ported the 3D game engine made famous by Duke Nukem 3D to the Arduino (German, Google translation). [Reimecker]'s project is based on the very popular Build Engine written by … [Read more...]
The Nixie tube, a neon-filled tube with a series of 10 cathodes shaped like numerals, is a classic display for any build wanting a unique, vintage, or steampunk aesthetic. We shouldn't be surprised a factory in China is now turning out Arduino-compatable Nixie modules (English translation, but don't get your hopes up), but there it is. The modules are based on the QS30-1 Nixie tube capable of … [Read more...]
[Brad] has been very excited about an ARM Cortex-M0 chip released by NXP; it's a fully featured ARM microcontroller, and is, quite amazingly, stuffed into a hobbyist and breadboard-friendly DIP-28 package. After finding a supplier for this chip, [Brad] dove in and put together a great tutorial for programming an ARM on the breadboard using open source tools. The chip in question is NXP's … [Read more...]
For those of you that don't know, the Heathkit HERO (Heathkit Educational Robot) was a 'bot built in the early 1980s. [Rick] wasn't satisfied with his model ETW-18's programming interface, so decided to upgrade it to be able to run Python using a hacked wireless router. We'd agree that things have advanced since then, since this little guy was originally programmed in machine code using an onboard … [Read more...]
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