Arche Modular: Notes From the Eurorack Bench

Field notes

Arche Modular documents a hardware workflow from breadboard experiments through fabricated Eurorack boards, with separate notes on power, KiCad panel geometry, firmware, and measurement errors. The named projects include Tonnetz, a four-output chord generator using probabilistic voice leading, and Subspace, a suboctave generator intended to work at both audio and clock rates. The site says the designs are not for sale yet, while the build log records failures such as a scheduler dying after twenty seconds and a high-resistance crimp starving a rail.