How Useful Is Adam Savage's Tattoo?

A video on YouTube. In Maker & Builds, a Krater category.

Summary by Krater

Adam Savage answers a patron's question about his forearm tattoo containing a ruler, explaining how it serves as a surprisingly practical ideation tool for sizing props and parts.

From the video

Answers: Why does Adam Savage have a ruler tattooed on his arm?

Adam Savage tattoo ruler
using tattoo as prop reference
measuring props with a forearm tattoo
styrene sheet thickness comparison

What it concludes

The forearm ruler tattoo is not accurate to high degrees, serving primarily for rough ideation and sizing props rather than high-precision measuring.
Styrene sheet thicknesses of 40 thou and 60 thou can be verified by checking divisibility against the tattoo's 5-millimeter grid squares.

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