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Post by Patrik on Feb 11, 2010 16:37:51 GMT -5
I'm building myself kozo's wiggler / center test indicator. But can't find any brass ball supplier. Any ideas where i can find some brass balls? Prefarbly in europe, but okay if they ship international with fair shipping price.
I found some phosphur bronze ball at Chronos, do they work?
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Post by daveb1 on Feb 11, 2010 16:41:38 GMT -5
Patrik, if you can't find in Europe try McMaster-Carr. I got mine there, and I sure they ship worldwide.
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Post by Patrik on Feb 11, 2010 17:56:40 GMT -5
What size should the ball be? I was looking for 3/8 " dia ball, maybe it's too big?
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Post by daveb1 on Feb 12, 2010 10:23:37 GMT -5
I used 3/16th but that was on the small side. 1/4 would probably be a good size.
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Post by grege on Feb 12, 2010 22:01:29 GMT -5
I used 1/4" brass ones from McMaster.
I don't think material matters much for the wiggler as long as its round and smooth and you can drill through it.
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Post by Patrik on Feb 15, 2010 17:19:33 GMT -5
I tried McMaster-Carr, but they don't wanna ship here, due to ever-increasing complexity of U.S exports regulations. So i'm back at square one.
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Post by daveb1 on Feb 16, 2010 10:23:06 GMT -5
Hi Patrik. If you would like to try 3/16, I could ship you a bunch. When I ordered them I had to buy a 100 of which I used a couple. Send me your address and I'll send you a bunch.
dave
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Post by Patrik on Feb 18, 2010 17:00:09 GMT -5
Hi Dave!
That would be very very kind of you to do.. However I think the 3/16 ball would be to small, I'm planing to use 2mm wire for the pointer.
Patrik
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Post by Patrik on Feb 21, 2010 15:39:54 GMT -5
Guys,
I think i managed to get a 6 mm brass ball here in sweden, i'll know tomorrow!
Did you end mill a flat on the ball before you drilled it or did you just use a center drill?
Thanks for the help,
Patrik
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Post by daveb1 on Feb 22, 2010 10:46:53 GMT -5
Hi Patrik, Kozo uses the body of the Wiggler as a fiture. Drill out the body and make the threaded cap, put the ball in, tighten the cap down on the ball and drill through the ball. I'm not sure that is a clear discription but basically you use the wiggler body to hold ball. Worked pretty good if I remember.
Dave
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Post by kwoodhands on Apr 18, 2011 17:54:34 GMT -5
I'm sure you have built your wiggler by now but this post may help others. The pop-up drain in a bathroom sink has the ball and the rod you need.The ball is usually nylon and the rod is stainless steel. Put a point on the rod and you are set.
Saying this I do not use it for a center finder. I use a simple 1/2" x8" round stock with a 60 ° point on one end and bored with a center drill to 60° on the other end.Put a dead or live center in the tailstock, the point goes into the punched hole.A dial indicator in the tool holder.
This will get you centered as quick as the wiggler,probably more accurate.
If you have drill rod, make the center finder from that and harden the point.I haven't done that yet myself, will do one of these days.
mike
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Post by doug on Apr 19, 2011 8:36:43 GMT -5
...Saying this I do not use it for a center finder. I use a simple 1/2" x8" round stock with a 60 ° point on one end and bored with a center drill to 60° on the other end.Put a dead or live center in the tailstock, the point goes into the punched hole.A dial indicator in the tool holder. This will get you centered as quick as the wiggler,probably more accurate. mike I use this method on occasion when needed, but just use a dead center, and indicate near the tip of the dead center to center the part up. If you have a mill, you can center drill holes on location, and use the center drilled holes for better accuracy in setting up in the lathe than a center punch. Starrett used to make a spring loaded center for just this method. I have only seen one in 40 years in machine shops. This method was an old die making method used before jib borers came on the scene. Regards, Doug |
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