This Casio hosts a BBS. The network lives somewhere else
A Casio VX-4 runs a BBS in BASIC while a Pi Zero W supplies its Internet connection. The arrangement forces a precise question: what does it mean to host a server?
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Tech · page 10
IRZ Tech archive, page 10.
This DIYPod is called Shuffle. It brought back the screen, menus and even three games
DIYPod Shuffle starts from a simple local music player, then adds an OLED, menus and three games. Its repository shows how quickly a deliberate constraint can turn back into a platform.
The Ploopy A+ keeps its old bearing mount. That is almost good news
The new Ploopy A+ keeps the Adept bearing mount. That is awkward given complaints about the bearings, but it also preserves replacement parts and community mods.
After the crash, Black Falcon scanned the car before sending it back out
After a major Nürburgring crash, Black Falcon added a 3D scan between rebuilding its Porsche and sending it back on track. The scanner fixes nothing; it turns bodywork into a measurement problem.
A pine cone mechanism ends up as 3D-printing code
MIT researchers formalized the whole chain from a biological mechanism to an engineering model and fabrication code. The important part is that validated pieces can be recombined.
This wrist sequencer turns lack of space into a musical choice
3DSage built a miniature sequencer around a homemade slap-bracelet wristband. Its interesting idea is bigger than the Y2K styling: shrinking a music interface to the wrist forces every control to justify its space.
This €151 open-source 6-DoF stylus depends on a €116 proprietary tracker
Lighthouse Stylus makes a spatial stylus replicable for €151.28, but a proprietary tracker accounts for most of the cost. The project is useful precisely because it shows where its openness stops.
What 3D printing actually changes in a cryogenic rocket engine
Othisis has tested a 4.5 kN cryogenic engine whose chamber was made with SLM. The useful part of additive manufacturing is not the word “printed”, but internal channels, fewer joints and faster iteration.
Hotend, filament and flow: getting 3D-printing settings out of folklore
“PLA at 210 °C” says very little about sustainable print speed. MeltCalc puts the missing variable back in view: volumetric flow and the conditions under which it was measured.
Communicating through rock, when geology becomes part of the circuit
Underground, familiar frequencies and antennas stop behaving familiarly. Cave radios move towards low frequencies, near-field coupling and antennas that can extend tens of metres across the ground.