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Reverse-Engineering a Failed Fellow Opus Grinder

Two snapped capacitor legs stopped a Fellow Opus grinder after a year of use. A careful teardown found a layered Class II enclosure, modular power and control boards, and a simple path toward diagnosis. Comparing the failed 2023 unit with its 2025 replacement also revealed useful design lessons for appliance repair.

Read the build on hackaday.io: Reverse-Engineering a Failed Fellow Opus Grinder

DIY Electronics