Found 3 3D-models for “useless calipers” across many websites

#homemade caliper#precision caliper#Stupid Inventions#unit of measurement#workshop tool#science#slide#Unit#silly tool#totally useless
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Printable Lightyear Caliper

Printable Lightyear Caliper

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Planck length caliper

Planck length caliper

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Planck length caliper

Planck length caliper

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