Tools: precision test indicator holder

This is the second part in the series of the tools I use. Tools that are surprisingly useful, tools that are not that obvious to find. Check out the first part here. Today: how to calibrate the CNC axis without actually cutting anything ? Use a test indicator ! How to hold the meter steady though, ? Attach it to the frame of your router using the power of magnets ! Sample item on Amazon here [affiliate link warning]

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Despite being attached to the frame by its back instead of the bottom it still holds beautifully.

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