Holding wood on the lathe without leaving marks. - Woodworking Talk - Woodworkers Forum
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post #1 of 15 Old 06-14-2018, 01:20 PM Thread Starter
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Holding wood on the lathe without leaving marks.

I was at a craft show and there was a turner there that had some bowls made of live edge burl caps where the live edge on the underside of the bowl was perfectly preserved. No tenon, no drive center mark, no live center mark, nuthin’. And by live edge, I mean the entire underside of the bowl was that knarly, prickly burl.
I asked how he did that and he said he had a special drive to hold it. I didn’t think a vacuum chuck would hold a live edge burl, but I asked anyway and he said he didn’t use a vacuum chuck. I didn’t want to pry much more, but I remained curious.
Any idea how this might have been done?
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post #2 of 15 Old 06-14-2018, 04:22 PM
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A cup chuck comes to mind. How big were the bowls?

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post #3 of 15 Old 06-14-2018, 04:48 PM Thread Starter
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They were oblong. Probably 16” long and 9” wide. Most amazingly, the bowl portion was offset to one end. So, a good grip was probably very important.
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post #4 of 15 Old 06-14-2018, 06:28 PM
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Maybe a screw chuck.
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post #5 of 15 Old 06-15-2018, 10:49 AM
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Maybe a bowl chuck. The posts can be positioned to accept odd shaped vessels. Photo attached.

http://www.woodworkingtalk.com/membe...ms/bowl-chuck/

Last edited by bornleader; 06-15-2018 at 11:10 AM.
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post #6 of 15 Old 06-15-2018, 03:57 PM
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Sounds like a jam chuck and a cushion pad. Thats what I use.

Last edited by Bob Willing; 06-15-2018 at 04:00 PM.
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post #7 of 15 Old 06-15-2018, 08:43 PM
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Didn't you ask him?

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post #8 of 15 Old 06-15-2018, 10:55 PM
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Magic. Now that was simple.

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post #9 of 15 Old 06-18-2018, 11:09 AM
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Quote:
Originally Posted by Bob Willing View Post
Sounds like a jam chuck and a cushion pad. Thats what I use.
You did say live edge and uneven? A colejaw chuck would not work.
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post #10 of 15 Old 06-18-2018, 03:26 PM Thread Starter
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Quote:
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You did say live edge and uneven? A colejaw chuck would not work.

Yes, a live edge and uneven.
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post #11 of 15 Old 06-18-2018, 04:32 PM
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So, if there's no machined surface (foot) on the bottom of the bowl, how does the piece support itself?

Dave in CT, USA
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post #12 of 15 Old 06-19-2018, 10:08 AM
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Quote:
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So, if there's no machined surface (foot) on the bottom of the bowl, how does the piece support itself?
Jam chuck, live center, and internal pad, than very carefully turn off the shoulder, and use a gouge to remove the small nibben and sand off what is left of the small nibben. When I make a bowl I will post some pictures.
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post #13 of 15 Old 06-19-2018, 03:26 PM Thread Starter
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Quote:
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So, if there's no machined surface (foot) on the bottom of the bowl, how does the piece support itself?
You, know, that's a great question. I didn't notice, but now I'm thinking it must have played a role in how it was held for turning.
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post #14 of 15 Old 06-21-2018, 07:44 PM
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post #15 of 15 Old 06-21-2018, 07:51 PM
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