Domain Arrivals
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Featured in Domain Arrivals · 2026-08-18

Rara Machina, an Industrial Microwave Workshop with an Open PLC

raramachina.com ↗ · Developer Corner · score 84.0
○Open: public page gives enough substance to understand the site $Paid: pricing, booking, ecommerce, subscription, or paid access is visible ADAds: visible ad load or ad-supported content ✦Pretty: notable design, copy, craft, or presentation ◆Pro: polished, finished-feeling, serious, or operationally mature ◇Niche: specific audience, workflow, or unusually focused use case ◉Human: personal, local, community, civic, handmade, or real-person signal !Suspicious: scammy, spammy, trust theater, finance fog, or credibility concern

A Buenos Aires engineering house that builds industrial microwave systems and develops Rara PLC, an open-hardware industrial controller for factories and robots.

Why it surfaced

Rara Machina connects an unusually physical business—volumetric microwave pasteurization, wood drying, ceramics, and chemical synthesis—to an openly published STM32H7 PLC. The controller speaks IEC 61131-3 toward the plant and ROS 2 toward robotics, while its hardware and firmware are being built in public with Claude folded into the development workflow.

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The Plotter’s 09:30 Shift

August 18’s newborn domains include an obsolete pen plotter clocking in at 09:30, emergency warnings designed for sight, touch, or hearing, a funeral-folder tool calibrated for printer drift, and photographs of Colombian rental signs turned into a housing map.

This is one of 1,000 discoveries in the 2026-08-18 Domain Arrivals issue.

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