Ex-EE fixes servo EMI by shortening comm wires — foil wrapping also worked
philfung · x · 2026-11-15
The author, a former electrical engineer, describes hitting EMI issues from large servos for the first time. After many failed attempts, two fixes worked: (1) wrapping everything in aluminum foil, (2) shortening the comm wires — they shipped the second solution. Directly useful for robot builders.
Related event: Robot Engineer Solves Large Servo EMI in the Field(3 posts)→
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