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4 jaw chuck

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modelman1938:
I have read many times in modelmaking magazines, when doing repetative jobs in a 4 jaw chuck to loosen only 2 jaws and note which ones these are. Place the next part in the chuck and tighten only these 2 jaws and it will run concentric. I have been following this method for over forty years and so far it has`nt worked out once and I have had to clock it in every time, I suppose it must work for some people or they would not recomend it. has anybody had any luck?.

Hugh

garym:
Hi John,

Thanks for the video. Much better for us beginners seeing someone do it rather than reading it in a book (which I do as well). The clip at the end just tops it off.   :thumbup: Keep 'em coming. I'm learning a new language as well.

Gary

vtsteam:
I always enjoy your movies John!  :thumbup:

ieezitin:
slamming the piece back in the 4 jaw never works.  opening up just 2 jaws and reversing  never works. the closest you can get is by using collets and even then its touchy.

i always plan for no re-set ups, if I have too clocking in always has to be done, and then thats done with a collet holder for the job if  i am turning or milling or if too large i have a spigot on the mill that has my thread for the chuck, again thats 1 or so thou out.

Anthony.

Trebor:
Just watched this and learnt something else  :thumbup: I was always one for comics as a kid so pictures do it for me !!

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