Donald Papp

Full body tracking in VR applications involves attaching sensors to one's body, and [Jaki] has a DIY method to do it on the cheap: the Vive Tracker Lite project repurposes Vive controllers as lighthouse-based trackers, no hardware modifications required.

[cmh]'s ultra-simple top cover for the Snapmaker U1 3D printer has a 3D model, but don't let that fool you. There's no 3D printing at all involved in this project.

3D printing has been around long enough that everyone's heard at least one weird trick regarding 3D prints. [Angus] of [Maker's Muse] puts a few to the test , and came away with one solid tip for releasing TPU from a build platform to which it has unfortunately welded itself.

Researchers demonstrate that something interesting happens when a small drone with a spindly airframe spins at a high speed: it very nearly turns invisible . The spidery device is shown mounted in its launcher in the image above. The dark blur at the rightmost side is an outlet on the wall behind the drone, not motion blur from a moving part.

Calculators are so ubiquitous and so familiar that they are easy to take for granted in many different ways. [lcamtuf] points out one that has probably never occurred to many of us:

[Kevin Kelm] created something wondrous: Halcyon Dawn , an utterly unique and desperately challenging game that is equal parts intricate starship simulator, imposing hardware console, video game, and love letter to John Scalzi's Old Man's War book series. Grab a beverage for this one, because it's chock-full of detail.

[John Dingley] has a Sony ZV-E10 camera that is excellent, but the design lacks a built-in electronic viewfinder. This means it relies entirely on its rear-mounted touchscreen for framing shots. This is troublesome because [John] often films in bright sunlight, and sometimes from a perspective other than normal eye level. His solution?

Logging and telemetry in remote controlled racing is a great thing, and not only does [jwachlin]'s Open RC Spotter do a fantastic job of that, it has quite a few clever tricks up its sleeve that make it extra special.

Got an idea and want to make a simple 3D model, but don't want to install a full-fledged CAD modeling suite and queue up a few hours of tutorial videos? Check out

Launch a single static binary executable, send someone a QR code or URL (or failing that, text a numerical code or shout it across a room), and they'll get an encrypted terminal in their browser. No VPN, no port forwarding, no firewall modifications, and no account setup required. It's