Four layers ball #1: Ultimate ball chuck

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Blog entry by Yuri posted 08-19-2012 05:43 PM 2888 reads 3 times favorited 6 comments Add to Favorites Watch
no previous part Part 1 of Four layers ball series Part 2: Tool bit »

My small TAIG lathe can be used for metal turning. So I decided to build ultimate ball chuck from aluminum (my previous chucks) Here is result of my creation.

Work in progress:

All starts with the drawing two chucks to fit 2” and 1.5” balls. The idea is the same as shown by Mike here

I was given small peaces of aluminum from the scrap pile.

Two blanks turned and cut to size, ready for face plate

Back on the lathe but this time mounted with face plate instead of regular chuck

Rough cuts made according to simple math calculations.

Smoothing with boring tool bit on the attachment to turn rounds

Parting off the cap

Making base, half a sphere


Cap ON

Cap OFF. Little step was made on both parts to snug fit for making holes.

Done. I made 10 dividing marks on the cap. Finally, polished with diamond paste.

Next blog will be about making ultimate cutting tool.

-- Live to Learn

6 comments so far

View AJswoodshop's profile


1057 posts in 3739 days

#1 posted 08-19-2012 06:27 PM

Looks interesting!


View exelectrician's profile


2339 posts in 3890 days

#2 posted 08-19-2012 09:32 PM

That is sweet! What makes this chuck “the ultimate” ??

-- Love thy neighbour as thyself

View stefang's profile


17040 posts in 4796 days

#3 posted 08-20-2012 10:33 AM

Looks fantastic Yuri. That said, I am 100% satisfied with my wooden chuck (third time lucky I guess). I am just saying this so that others, like myself who have no hope of making a metal ball chuck will not feel that a wooden chuck cannot be just as effective and will last a long time too.

As for the steel chuck, in addition to turning Chinese balls, I can see it being used with a metal ball and used for off-center turning. Something I doubt my wooden chuck could be used for. I think you will probably find even more uses for your chuck.

I have to say that I wish I had your very impressive metal working skills. I can see what an advantage it can be for a woodworker.

-- Mike, an American living in Norway.

View rance's profile


4282 posts in 4623 days

#4 posted 09-02-2012 10:02 PM

Nice show of progress. Nice work as well.

What many woodturners don’t realize is that most everything you have done here could be done in wood rather than the aluminum that you used. (Not meant to minimize your skills here.)

-- Backer boards, stop blocks, build oversized, and never buy a hand plane--

View Yuri's profile


55 posts in 4878 days

#5 posted 09-02-2012 10:49 PM

Thank you. Because i’m using small lathe I wanted the chuck small enough to fit carriage and radius turning jig between chuck and a bed. I could not do it with my previous chucks.

-- Live to Learn

View NormG's profile


6576 posts in 4466 days

#6 posted 09-03-2012 12:42 AM

Those are, some wonderful skills there. Great blog also, very nice piece

-- Norman - I never never make a mistake, I just change the design.

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