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Lathe tailstock with Morse taper

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Paul_NJ
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Lathe tailstock with Morse taper

Postby Paul_NJ » Wed Dec 27, 2006 4:47 pm

Could I ask a favor? Would someone take a look at a lathe tailstock drill chuck that's on ebay . . . it is item # 320064652226.

The lathe I'm restoring has a Morse Taper #2, so this seems to be the right one, but from the photo at least, the taper seems worn and maybe a little "cupped". I asked the seller but got no reply. Would it matter if it were worn?, seems like it might not fit tightly and could turn . . . the price is about $9 currently. There's another one on there (270071487398) that looks much better but it starts at $35. This is new territory for me so I thought I'd ask for advice.

Thanks
51 Cub; IH 340 Utility; IH 240 Utility http://public.fotki.com/PWS/

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George Willer
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Postby George Willer » Wed Dec 27, 2006 5:32 pm

Paul,

The taper is unlikely to be worn. You can only tell about its' accuracy by actual test. For tailstock use you may have to remove the drive tang which would have prevented wear in an earlier life. With your lathe you would need a morse #2 to #3 adapter and a dial indicator to do the test. For most uses the accuracy won't even matter since drilling jobs from the tailstock are self centering. The worst thing would be drilling oversize. Drills aren't a good way to get an accurate hole anyway.

Inaccuracy is more likely to originate in the tail stock itself. Don't be afraid of that chuck. The missing key is standard.
George Willer
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The most affectionate creature in the world is a wet dog. Ambrose Bierce

Paul_NJ
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Joined: Mon Apr 07, 2003 11:35 am
Location: Morristown, New Jersey

Postby Paul_NJ » Wed Dec 27, 2006 10:56 pm

Thanks George, I sure appreciate your help. I've got much to learn about using a lathe. One answer leads to another question though. You said

For tailstock use you may have to remove the drive tang


How would I do that?
51 Cub; IH 340 Utility; IH 240 Utility http://public.fotki.com/PWS/

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George Willer
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Postby George Willer » Wed Dec 27, 2006 11:53 pm

Paul_NJ wrote:Thanks George, I sure appreciate your help. I've got much to learn about using a lathe. One answer leads to another question though. You said

For tailstock use you may have to remove the drive tang


How would I do that?


Try if first before cutting it. If the ram is graduated run it out an inch or so and see if a CLEAN morse taper fits firmly in a CLEAN socket and then see how far you retract the ram before the chuck ejects. Maybe it won't bother you if it ejects before it comes all the way to zero.

If you decide to remove the tang so it's easier to measure depth of drilling a hacksaw will do it. They aren't very hard.
George Willer
http://gwill.net

The most affectionate creature in the world is a wet dog. Ambrose Bierce


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