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Homemade Four Ball ID Gauge


BUILDER:
rgsparber on homemadetools.net
DESCRIPTION:
Homemade ID gauge utilizing an arrangement of four ball bearings to solve for ID values. DTI is fitted into the bearing body. As the top ball is lowered by the push rod, the bottom bearings protrude from toward the ID. DTI reading is entered into a spreadsheet to yield the ID.
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Jan 16, 2014 5:00 PM
DIYer
Amazed at the thinking behind this mod. Have never needed this kind of precision, so I would have not imagined it.
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DIY Four Ball ID Gauge - comment on how to build a Four Ball ID Gauge - 1 comments
DIYer says:
Jan 16, 2014 5:00 PM
Amazed at the thinking behind this mod. Have never needed this kind of precision, so I would have not imagined it.

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