Ball turning attachment from OMW

[steamer]

I have some ball handles to make, and there's a possibility of making more than two.

I looked at machining a form tool, but with tool steel, I don't think it'll last too many handles, and the 0-1 stock in the size required wasn't cheap!...

So I took a look at this

https://littlemachineshop.com/products/product_view.php?ProductID=2569&category=

Yeah I could make it....I says....and the other voice said   Yeah When!!!   so I bought it

they have two sizes, but I don't regularly turn balls, and when I do, they're sub 3/4 and I usually interpolate and polish/file them.

I got this today, and I immediately dropped it in a tool holder, knocked the wax off the presharpened and mounted tool, and challenged a piece of brass.

I was pretty impressed.  It's rugged for it's size, and it turned a nice little spherical end!   
It came with instructions for use,  which....I eventually read.... 

I'd say I think it's worth it.  Glad I have it, it's nicely made, what's not to love?

The tool it came with is quite sharp.   I would radius the tip of it for brass...but it's HSS and removable and they sell replacements.

Dave

[b.lindsey]

Nice looking little thing. I like it much better than the one sherline sells too, this is a much more standard design.

Bill

[Don1966]

Yeah Dave got one of those before I made the one from Hemingway it isn’t very ridget. It will turn brass pretty well but metal it has a tendency to move. It will do for what you want though!


 
Don

[steamer]

Well...under the heading of lots of light cuts,  it'll do fine for me for the occasional ball.

I'll be making some ball handles for the Levin...I'll post it up and we'll see how it goes.

Dave

[steamer]

the rig did great!

some quirks...

then handle is long and tends to foul the tool post.  You need to spend some time locating it.  It attaches with a set screw

The tool had a very small radius on it...knock it off just a touch...

The top of the tool MUST stay horizontal

The tool MUST be on center

0.005 per pass is suggested...it could take more, but it worked better with lots of light passes

Setting the radius with a ruler is unsatisfying....I'll come up with a way to set it with a depth micrometer

Steel was "some steel" grade.  I'm guessing maybe 1018 or 12L14...not sure  Doesnt seem to machine as nice as 12L14

Works on 0-1.

I'm satisfied, and it works great for those not too accurate balls you usually use for tool handles and such..

Dave

[10KPete]

Thanks Dave! You're right about fine setting but I'm not sure I need that. I have one sketched out but....when????

Pete

[steamer]

For stuff up to 3/4 and 0-1steel...it's fine...for 99% of what I do.

Dave

[J.hawk]

Take look at the ball turning tool post at Metal Lathe Accessories.  www.mlatoolbox.com     Andy Lofquist has some fine castings.

[steamer]

Take look at the ball turning tool post at Metal Lathe Accessories.  www.mlatoolbox.com     Andy Lofquist has some fine castings.

He does!    However, there are other projects I want to work on....I just needed the odd ball end turned.   It did just fine!

Dave

[Djangodog]

Take look at the ball turning tool post at Metal Lathe Accessories.  www.mlatoolbox.com     Andy Lofquist has some fine castings.

He does!    However, there are other projects I want to work on....I just needed the odd ball end turned.   It did just fine!

Dave

It looks like it did fine, (nice work too).  I have a similar but larger tool.  I use a depth mic to set it and the accuracy has been very good.  It doesn’t get used very often, but it is great to have when need.

 

[Bruno Mueller]

This is my ball turning device.

[Alston]

I’ve seen several ball turning tools made from a boring head, they look pretty good.

[Krypto]

I’ve seen several ball turning tools made from a boring head, they look pretty good.

I had one of the ball turning attachments like the first post and I didn't like it very much.  It was very light, loved to resonate and it was difficult to adjust.

When I bought a very nice used Criterion boring head for the mill, the import version I was using was regulated to lathe tooling, mostly used for a boring head ball turning attachment as described in Ade's video.

<a href="https://www.youtube.com/watch?v=1AUPBj8cBQ8" target="_blank">http://www.youtube.com/watch?v=1AUPBj8cBQ8</a>

The one I built is here:



Works great!  It's very stout and much easier to adjust, especially for spherical turning which doesn't require any measurements to setup the tool.

[uuu]

I must make one of these. 

Wilf

[Admiral_dk]

Love this one - so on the to do list 

Per