View Full Version : balls of brass

04-14-2009, 07:31 PM
Making a brass ball with my homemade ball turner using the front and back tool posts on my Logan.
My first video.


04-14-2009, 07:51 PM
"balls of brass"

Perhaps so, but they will still freeze off around here in the winter :)

ps n/work!

tony ennis
04-14-2009, 07:58 PM
Nice video.

Your Old Dog
04-14-2009, 08:14 PM
Thanks for the post, that was pretty interesting as I still havent' made one yet but plan on doing so. Nice job.

04-14-2009, 08:37 PM
Nice,probably the simplist radius turner I have seen.

What camera did you use for the video?

04-14-2009, 10:54 PM
Nice video and a really nice ball turning setup. Will that setup work on steel as well? I have to make some ball cranks for my mill.

The Artful Bodger
04-14-2009, 11:23 PM
Nice effort, the brass balls and the video too!

I would be afraid to try that style of radius turner with steel though as what happens if a 'dig in' occurs? I fear something must break and I am not sure that it would always be the tool or the work.:eek:

04-14-2009, 11:29 PM
Yes it works fine on steel.
I call my turner [Jim Sehr's super simple ball turner] and if you notice how far
I can turn around the ball dia I have never seen any turner that can go that far around . The turner is made to turn 4 sizes of ball 1", 7/8, 3/4 and 5/8 dia.
It uses a 1/4" carbide round as a cutter. And it has no side clearance on the tool. That is why I used the back tool post. If one wants to use just one tool
post then clearance must be ground on the round tool. The only thing I used to polish ball was steel wool. Pic looks like it is not round but it is closer then
.002 round or better.

04-15-2009, 12:01 AM
artful bodger Here is a steel ball I made.


Wierdscience the camera is a Vado made by Creative . I bought it last week
from Walmart online cost about $70 bucks and you can upload right to Utube
or Photobucket. This is my first video and I am happy with it.

The Artful Bodger
04-15-2009, 01:47 AM
Thanks Jim, you convinced me!:)

Lew Hartswick
04-15-2009, 09:46 AM
You mean like this?


dan s
04-15-2009, 11:38 AM

Is that just a HSS round mounted vertically?

04-15-2009, 01:11 PM
Hi Jim,

Thanks for the well made video. Can you post a few close up, in focus images of the ball turner, including the bit used?


04-15-2009, 03:27 PM
Here's one I made earlier....


Bill in Ky
04-15-2009, 04:19 PM
Nice work there.

04-15-2009, 08:14 PM
Pic of parts for turner.

Dan S
Tool is a 1/4 carbide round but hss works fine. Remember tool has NO
clearance, so if you want to face with it you have to grind clearance.
I'm going to see if I can find a piece of stainless to prove out the tool on all
materials. I have used 1215 mat but I want to do a stainless ball.
ps I find centerline of tool by using a depth mic and checking from top of stock and mic down to top of round. If 1 inch stock mic down .5 to top of
centerline puts you right on center. Don't think tool will cut if above center.