Maker meme goes viral: grandfather eyeballs parts to micrometer tolerance

haydendevs · x · 2026-11-15

A viral engineering meme: the author measures with calipers while his grandfather matches tolerances 'with just one look.' The attached classic 'Virgin Caliper Owner vs Chad Eyeballer' comic mocks measuring three times and printing fit tests that still don't fit, versus eyeballing it and fitting first try.

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