Half/Split columns using two 2x4s

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Half/Split columns using two 2x4s

Postby Rcnewcomb » Tue May 28, 2019 1:57 am

Held two 2x4s with a round disk on each end and machined them on the rotary to end up with two half or split columns. This way it appears you have pieces with undercuts. I was very conservative on the rounding for this one so the total cut time was just under 28 minutes. I can probably get this down to 15 minutes, i.e. about 7.5 minutes per split column piece.
A_IMG_0806 (2).jpg

B_IMG_0802.jpg

C_IMG_0800.jpg

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E_IMG_0809.jpg

F_IMG_0810 (2).jpg
- Randall Newcomb
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Re: Half/Split columns using two 2x4s

Postby jimwill2 » Tue May 28, 2019 3:00 am

Nice work!
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Re: Half/Split columns using two 2x4s

Postby Bobtail Farm » Thu May 30, 2019 10:21 am

+1, and thanks for the method of work.
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Re: Half/Split columns using two 2x4s

Postby TReischl » Thu May 30, 2019 1:19 pm

Nicely done Russ!

There is a technique you can use that turners use quite often.

Put a piece of wrapping paper (or a paper bag works well) between them with some glue. That will hold them together nicely while turning yet allow them to be split apart easily when finished.

I really like your disc technique and I am going to put that in my bag of tricks for plain old turning.
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Re: Half/Split columns using two 2x4s

Postby Martin Reid » Thu May 30, 2019 2:28 pm

Dear Randall

Looks good (and quick)

For those without 'rotary' or a 5th axis - it is possible to make columns from flat stock and an 18mm Radius Cutter. But not quick!

Sincerely and in good faith
Martin

00 Setting Out Flutes.png
Setting Out

01.jpg
known position on bed

09.jpg
Slowly step round the piece

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until ¼ round and fluted

DSCI0430.jpg
Glue them together in halves

DSCI0436.jpg
Then glue the halves
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