Another mini chuck key...

Ian Bee

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May 26, 2013
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Yep, I see I'm not the first, but had to share anyways! After having to reset my tail stock on the little Hercus Lathe, using two screw drivers, I wondered, why don't I do the same thing when I have my four jaw chuck mounted...

Pain, having to keep turning the damn thing to clock in a part, so, whilst waiting for some paint to dry (literally), I machined up another key for the four jaw.

Couldn't be bothered pulling the rotary table out, just eyeballed the four faces, fits real good!

So, centering should be a little quicker now...

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Yep Two keys work a treat. In my case I made a longer one to clear the safety shield on my Seig 7 x 12 clone. I also use the technique shown by John Doubleboost on his YouTube channel here, About 7 minutes in for Square stuff and 15 minutes in for round stuff.
My set up time is way less after using his method for a while. No longer dread the thought of truing up work in the four jaw.
Regards,
John B
 
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