Author Topic: Centering in my 4 jaw chuck  (Read 6292 times)

Offline Roger B

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Re: Centering in my 4 jaw chuck
« Reply #15 on: September 02, 2016, 11:04:16 AM »
Keats angle plates are excellent  :ThumbsUp:  :ThumbsUp:
Best regards

Roger

Offline Flyboy Jim

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Re: Centering in my 4 jaw chuck
« Reply #16 on: September 02, 2016, 02:49:12 PM »
Here's a picture of my "Crueby inspired" dial indicator holder that mounts on the back of my cross slide. Also showed is my "Marv inspired pump center. Both are very useful and work great. I normally don't use the pump center to center stock in the 4 jaw, preferring instead to just work directly on the stock. It's being used in this case to set up the offset for turning the eccentric for my Elmer's #43. Using two chuck wrenches lets me center the stock quite fast.

Jim

Sherline 4400 Lathe
Sherline 5400 Mill
"You can do small things on big machines, but you can do small things on small machines".

Offline mklotz

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Re: Centering in my 4 jaw chuck
« Reply #17 on: September 02, 2016, 03:35:15 PM »
Just one more nuance, Jim.  Make yourself an elephant-foot tip for the DI.
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Offline crueby

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Re: Centering in my 4 jaw chuck
« Reply #18 on: September 02, 2016, 05:26:19 PM »
Just one more nuance, Jim.  Make yourself an elephant-foot tip for the DI.

Elephant foot tip?

Toenails and all?

Offline mklotz

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Re: Centering in my 4 jaw chuck
« Reply #19 on: September 02, 2016, 06:07:20 PM »
Just one more nuance, Jim.  Make yourself an elephant-foot tip for the DI.

Elephant foot tip?

Toenails and all?

Yes, paint them pink.  Machine grey is so passé these days.
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Regards, Marv


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Offline crueby

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Re: Centering in my 4 jaw chuck
« Reply #20 on: September 02, 2016, 06:45:11 PM »
Just one more nuance, Jim.  Make yourself an elephant-foot tip for the DI.

Elephant foot tip?

Toenails and all?

Yes, paint them pink.  Machine grey is so passé these days.

Will do. But, what is an elephants foot tip?

Offline tvoght

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Re: Centering in my 4 jaw chuck
« Reply #21 on: September 02, 2016, 07:13:42 PM »
Will do. But, what is an elephants foot tip?

Don't know about the zoological name, but here's something like what I use.

http://www.mcmaster.com/#20625a417/=13zrh8e

--Tim

Offline mklotz

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Re: Centering in my 4 jaw chuck
« Reply #22 on: September 02, 2016, 07:59:24 PM »
Just one more nuance, Jim.  Make yourself an elephant-foot tip for the DI.

Elephant foot tip?

Toenails and all?

Yes, paint them pink.  Machine grey is so passé these days.

Will do. But, what is an elephants foot tip?

Tim has the idea of it.  It's a large-diameter (compared to a typical DI tip) tip with a flat face.  Such a design ensures that the tip is always riding on the most outboard surface of the work, thus eliminating the need to precisely align the tip vertically.

If you make your own shoot for a diameter of 3/8" or so.
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Offline Brian Rupnow

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Re: Centering in my 4 jaw chuck
« Reply #23 on: September 02, 2016, 08:06:03 PM »
Or--You could try going back and reading post #2.

Offline ShopShoe

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Re: Centering in my 4 jaw chuck
« Reply #24 on: September 03, 2016, 02:23:57 PM »
Just FYI for those interested,

For another take on indicator mounting, Abom79 posted a modification on YouTube not too long ago:

www.youtube.com/watch?v=CIRSz3bUynw

(“Shop Talk 6: Center Cutting Endmills, Indicator Mounting, Noga Mini-Cool, Floor Mats”)

The segment to watch is from 3:50 to 6:30

—ShopShoe
« Last Edit: September 03, 2016, 02:29:39 PM by ShopShoe »