Reply by 4woodturning

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Posted on TEKNATOOL SuperNova2

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187 posts in 3186 days

#1 posted 04-10-2010 03:08 PM

“I’m guessing that the tendon would be a rounded portion of the stock, as if I was to round my piece first using the head and tail centers. Then use the chuck to clamp down on the outside of the tendon at the head portion of my piece. And turn whatever is desired on the remainder, cutting off then tendon when I’m done. Does this sound correct?” ichi

lets say you turn a 4×4 between centers, and your chuck jaws are 1/2” deep on the inside. so you would turn a tendon 3/8” so that it does not bottom out the chuck and tapered to match your jaw profile, and the tendon turned down to 3” round now you have a 1” wall for the end of your jaws to rest against. now with your chuck clamp down on the tendon and use the tail stock to keep some pressure against your turning so the hit the wall tight and stay true. now you have two points of pressure to hold that piece. and yes after your done turning part off. on bowls you would reverse jam chuck and turn tendon away.

the worm screw is for screw chucking and will replace your faceplate. if you look on the inside where your jaws meet you will see that the jaws does not meet at a point when closed. insert your worm screw, drill a hole in your the center of a bowl blank in the side grain only, will not hold in the end grain, screw it on tight to the chuck jaws, bring up the tail stock to hold blank till turn round and balanced (like my picture next to my name) at that point you can turn tendon or recess tendon.

recess tendons are nice on smaller bowls, plates and platters. after screw chucked finish the outside of your bowl and leave a foot on bottom. then remove your tail stock and recess an tendon again match your jaw profile of the outside of your jaws, remove all the materiel the inside of your recess so the bowl will rest on the most out part of your foot. then remove it from worm screw, insert chuck and spread jaws, again using tail stock for pressure, once you hollow out bowl your done no tendon to remove. CAUTION BE SURE OF YOUR DEPTH SO YOU DON’T HIT CHUCK JAWS.

I hope this helps you and not to confuse you also would like to see pictures of your project.

-- Jeff, Missouri ,"Just because your not bleeding, dont mean your turning safely!"..............

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