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Author Topic: Snub Built A Ball Turner  (Read 24786 times)

Offline snub

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Snub Built A Ball Turner
« on: October 02, 2010, 10:45:14 PM »
My lathe is 5.5 inches fom center to the top of the cross slide so I needed a fairly tall 'stand'. I allready had this 4 jaw chuck that I use as a vice , so I decided to cheat and use this for the stand. Instead of machining a notch for the carbide tool bit, I decided to use the whole thing, bolting it to the bit holder.

http://i53.photobucket.com/albums/g62/mithslew/Machine%20Shop/ballturnerconcavecut.jpgSnub Built A Ball Turner

http://i53.photobucket.com/albums/g62/mithslew/Machine%20Shop/ballturnerconvexcut.jpgSnub Built A Ball Turner


The bearing is from a '57 Ford rear axle. I had a new one on the shelf, that's why I used it.

http://i53.photobucket.com/albums/g62/mithslew/Machine%20Shop/ballturnerswivel2.jpgSnub Built A Ball Turner

The flat head machine screw passes through the rotating tool holder and threads into a cylinder with a shoulder on the bottom. When I get the tool holder to just the right snugness, I lock it in place with a set screw from the bottom.


http://i53.photobucket.com/albums/g62/mithslew/Machine%20Shop/ballturnerswivel1.jpgSnub Built A Ball Turner




http://i53.photobucket.com/albums/g62/mithslew/Machine%20Shop/ballturnerbase.jpgSnub Built A Ball Turner


  http://i53.photobucket.com/albums/g62/mithslew/Machine%20Shop/ballturnerbase2.jpgSnub Built A Ball Turner

I have to tell you, it works perfectly. No chatter and leaves an almost perfect finish. 

Some of my balls. Aluminum, plastic and clear acrylic:



http://i53.photobucket.com/albums/g62/mithslew/Machine%20Shop/ballturneraluminumball.jpgSnub Built A Ball Turner


http://i53.photobucket.com/albums/g62/mithslew/Machine%20Shop/ballturnerpolypropolyneball.jpgSnub Built A Ball Turner


http://i53.photobucket.com/albums/g62/mithslew/Machine%20Shop/clearball.jpgSnub Built A Ball Turner


And a little 'freestyle', just to  see what I could make.


http://i53.photobucket.com/albums/g62/mithslew/Machine%20Shop/ballturnerornament.jpgSnub Built A Ball Turner




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Offline Artie

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Re: Snub Built A Ball Turner
« Reply #1 on: October 02, 2010, 11:18:10 PM »
Quote from: snub on October 02, 2010, 10:45:14 PM


I have to tell you, it works perfectly. No chatter and leaves an almost perfect finish. 

Some of my balls. Aluminum, plastic and clear acrylic:


Its amazing what modern medicine can do these days!   Seriously, great job, Im gonna find one of these under my bench one day pretty soon... well done mate.
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South Wales, wait...NEW South Wales... Batemans Bay.

Offline Powder Keg

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Re: Snub Built A Ball Turner
« Reply #2 on: October 03, 2010, 10:23:14 AM »
Looks nice!!!

With all these ball turners showing up, Looks like I better post the one that I made? I can do 6" balls with minehttp://img.photobucket.com/albums/v652/Powderkeg3418/Smilies/headgear65-Copy.gifSnub Built A Ball Turner
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Wesley P
A Gismo ??? If it has a flywheel or spins and is made with small parts. I'll take one! If it makes noise, moves, or requires frequent oiling and dusting it's a better deal yet. It's especially right if its shiny and bright; but if it's dirty and dull it wont mater at all...

Offline AndyB

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Re: Snub Built A Ball Turner
« Reply #3 on: October 24, 2010, 01:05:20 PM »
Hi Snub,

Nice bit of work!

Am I correct in assuming that the toolholder end bears on the outer race while the bottom stub bears against the inner?

There are so many variations on a theme that I haven't completed one of these yet...another project plan waiting on the bench! :bang: Yours looks a cracker though! :clap:

Funnily enough, I got a couple of brand new bearings in a box of bits that are 40mm OD and I have some 40mm MS...

Andy
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Offline Brass_Machine

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Re: Snub Built A Ball Turner
« Reply #4 on: October 27, 2010, 10:04:08 AM »
Nice work on that!

Eric
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Science is fun.

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Offline Stilldrillin

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Re: Snub Built A Ball Turner
« Reply #5 on: October 27, 2010, 12:41:45 PM »
I like the thinking gone into that!  :clap:

David D
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David.

Still drilling holes... Sometimes, in the right place!

Still modifying bits of metal... Occasionally, making an improvement!
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