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IRZ archive, page 34.

CAD gets less annoying, one small friction at a time

Text directly inside Sketcher, finer recomputes, a responsive UI and multi-file editing make the next FreeCAD release look less like a feature demo and more like a hunt for everyday irritation.

Circular Octopus 16 board fitted with pogo-pin contacts for EEG signal measurement

Sixteen EEG electrodes fit onto a 26 mm board

The open project puts sixteen EEG contacts, reference and ground on one small circular board, then streams measurements over Bluetooth. The most important part of the README may be the safety warning.