Author Topic: Snub Built A Ball Turner  (Read 11015 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.






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



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.










 

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:












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








Offline Artie

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Re: Snub Built A Ball Turner
« Reply #1 on: October 02, 2010, 11:18:10 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.
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 mine
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
Waveney Valley, Suffolk/Norfolk Border

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
Science is fun.

We're all mad here. I'm mad. You're mad.

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
David.

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

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