Few People Know These DIY BUILDING HACKS (Tools Hacks Tips)

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[@noahkatz9616]

Seems to me that the line distance from the curve will vary if the hole is not in the center of the jar lid...

[@TomCee53]

Especially if you let the lid roll against the curve.

[@noahkatz9616]

@@TomCee53 Oh, I thought that was the idea.

[@PeterVerhas]

Even a cheap 30usd inclinometer gives you 0.2deg precision. 1deg precision is rough.