Edge finder from a pin chuck.

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Jan 2, 2018, 10:57 AM #1

olderdan

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Edge finder from a pin chuck.

Easy to make wobbler or edge finder from a standard pin chuck, this does not alter the pin chuck and so it is still available for its original purpose.
Mine is an Eclipse No 160 chuck but others may suit, for the pivot ball just soften a ¼ ball bearing and drill for the arm , soft solder or adhesive to a shaft with your preferred end shape, I have used a .200”dia for both styles as all my equipment is imperial. 4mm would be good also, one barrel or ball shaped for flat surfaces and one parallel for diameters.
I have used this for thirty years and it will repeat to better than .0005”.

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