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The Woodturning Forum - Woodturner's Resource › Woodturning Forum › Turning Talk › Coring?

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Coring? (Read 945 times)

Frank Padden Active Member Offline WR Rocks! Posts: 109 Hudson Massachusetts USA Gender: Nova 16"	Coring? May 30^th, 2016 at 4:24pm Does anyone use a coring system for bowls? Is it worth the cost? Advantages, disadvantages? Thanks!
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Ed Weber

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Re: Coring?
Reply #1 - May 30^th, 2016 at 4:39pm

Many members here use coring systems.
Regardless of style or brand, the advantages are that you are now able to use the wood that would have otherwise been wasted. Any bowl cored from the outer blank is essentially free. Depending on what size and type of wood, you can easily recoup your money.
I don't see any disadvantages to a coring system.
There are differences between brands and how the work but that's another discussion.

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Don Stephan WR Addict Offline WR Rocks! Posts: 2,659 Cincinnati, Ohio Ohio USA Gender:	Re: Coring? Reply #2 - May 30^th, 2016 at 7:06pm Does a coring system impact the shape of the bowl(s)? In the few videos I've seen, the cores all look like "production" bowls - continuous outflowing sides, never a "containing" bowl where the rim slightly smaller diameter than the max diameter of the bowl. Granted, production bowls are perfectly shaped for ease of power sanding.
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Ed Weber

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Re: Coring?
Reply #3 - May 30^th, 2016 at 7:59pm

There are a few different types of systems.
Some, like the OneWay Easy-Core will only produce bowls as you described due to the shape and design of the cutting action.. The McNaughton system (my personal choice) is more versatile in terms of bowl shape. Multiple cutter arcs, and sizes available.

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robo_hippy

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Re: Coring?
Reply #4 - May 30^th, 2016 at 11:06pm

Well, 3 or 4 cored sets of bowls will pay for the system. All cores are scrapers, and all are arc sections of a circle, so the outside will have a form, but you don't have to follow that form unless you want most bowls possible out of a blank. I prefer the McNaughton, but it has a learning curve to it. Both I and Dale Bonnertz have videos up on You Tube on how to use it.

robo hippy

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Grant Wilkinson WR Addict Offline Posts: 783 Ottawa Ontario Canada	Re: Coring? Reply #5 - May 31^st, 2016 at 7:28pm I use the Oneway, and while agree with others about the "default" shape it produces, if you keep the walls thick, you have quite a bit of flexibility on the final shape. As Reed said, if you want the most bowls possible out of the blank, you lose that flexibility.
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Walt Nollan WR Addict Offline WR Rocks! Posts: 2,002 Hanford California USA Gender: PM 3520A	Re: Coring? Reply #6 - Jun 1^st, 2016 at 1:03pm I have the McNaughton system and agree with the learning curve. There are plenty of videos to help give pointers. It is more versatile of the three main systems in my opinion.
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Bert Delisle WR Addict Offline Posts: 1,424 Calgary Alberta Canada Gender: Vicmarc 300	Re: Coring? Reply #7 - Jun 1^st, 2016 at 8:08pm +1 for McNaughton system.
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