Coring Device

Re: Coring Device

bowlman

After trying both the Oneway and the McNaughton systems, I opted for the Oneway. Both are good systems, but, the Oneway has a much shorter learning curve. Some people say that the McN system gives you more flexibility of shapes than the Oneway. The Oneway is just a quarter of a fixed circle. But, since a lot of my turnings are bowls in green wood and I twice turn them, the final shape is not determined until after the core is dried and turned to finished size and shape.

Yes, both are expensive... BUT, if you sell any of your work, the money from the cores will more than pay for the system, whichever you select.

Also, before I got the Oneway system, I had rotator cuff surgery on both shoulders. The Oneway system puts zero stress on your shoulders. The McNaughton system can put a lot of strenss and strain on your shoulders ... at least until you become a master corer like my friend Mike Mahoney. he makes the McN system sing and it looks so effortless. But then he has cored tens of thousands of blanks.

Just my 2 cents worth.

Re: Coring Device

Jeff Smith

Have you checked out the article and youtube video Dale Bonertz put together? The article in the AAW Journal compares the systems and gives you a dramatic headstart on the learning curve. Great information.

Re: Coring Device

Dick Coers

I use the Woodcut Woodsaver. They have a new, larger system out now, but I can't find it available in the USA. I bought a big box of 10 McNaughton cutters, standard/large system with additional mini knives. I used two of them, and set the whole system back on the shelf. I guess trying to learn on some 18" soft maple blanks was not the best approach. Let me know if you would be interested in buying, I'm interested in selling.

Re: Coring Device

Peter Hyde

Well I used the Oneway system a couple of times and found it a major pain doing setup and also being limited to it's fixed curve. So I went for the McNaughton and love it. As for strain on shoulder it just doesn't happen as you pull up on the tool handle to hold it against the top bar which takes all the stress off of you. Also there is a straight knife available for coring long hollow forms which saves a lot of time with a hollowing tool. I read all sorts of negatives about turners unable to figure out the set up on the McNaughtons but it has to be one of the simplest. Select knife by holding it on the outside of the curved blank and eyeball where the tip will get to in the centre and how deep you can go before the handle hits the tool holder. Then during use eyeball down the handle to the tip buried in the wood for an exact location as to where the tip is cutting. Once the core is loose reverse it and bring up the tailstock and use the hollowed blank as a jamb chuck to turn a tenon on the core ready for another core to be taken if needed. I always rub beeswax on both sides of the knife to provide some lubrication and save bluing the knife.

Re: Coring Device

Dick Coers

"Then during use eyeball down the handle to the tip buried in the wood for an exact location as to where the tip is cutting."

Are you from the planet Krypton? Eyeball for exact location? Your exact and my exact are two way different things! LOL What diameter are you working with? I found it rough to get high enough to eyeball all those things on an 18" diameter bowl.

Re: Coring Device

robo hippy

I prefer the McNaughton. Yes, it does have a learning curve, but the main thing for me is that it is way faster than the Oneway. I can remove a core in slightly more time than it takes to set up the Oneway system. Of course, I have had a lot of practice. I also have a video up on You Tube on how to use it. Mike Mahoney cuts his handles in half. One of the difficult things to learn when using it is that you let the top of the blade rest against the top of the older T support or the newer box support. That takes all of the arm and body stress off when using the tool. You have to learn to let it work rather than letting it work you. It really helps to have a hands on session with it when learning.

robo hippy

Re: Coring Device

Peter Hyde

I'm a 6' 2" non superman and have no problem getting down to eyeball down the length of the handle to see where the tip is. The tip is always in line with the handle unless the blades have been bent by owners who want something other than the standard curve. I have never gone through the bottom or side and it's a really easy matter to adjust the tool post position if you think you are heading in the wrong direction. 12' -28" diameter blanks always get cored even if the cores don't get used because of cracks or other nasty stuff. It just saves an awful lot of chip disposal and time.

I don't understand why a lot of woodturners think like engineers, there's no need. It's wood and replaceable so why worry?

Re: Coring Device

Dick Coers

Some us think like engineers because we paid good money to be trained to think thiat way. Then, got paid for a career to think that way. It's a bit of a habit after 32 years.

Re: Coring Device

Donna Banfield

Mike Mahoney had rotator cuff surgery last fall. Hmmmm.

Stress and strain *LINK*

Jeff Willaford

Maybe not so much stress and strain. The link is to a picture posted a while back.


http://www.woodcentral.com/woodworking/forum/archives_turning.pl/bid/2110/pro/search/pmd/sread/srchid/23928o5y5JNZ9KFv6L841457744930/spage/1/sanc/232471/sbid/2110/md/read/id/232608/sbj/mcnaughton-coring-system-issues/

Re: Coring Device

robo hippy

Well, you know engineers, 'if it ain't broke, take it apart and fix it anyway'. If the blades were perfect curves, all the way to the tips, they would be much easier to cut with. The blades on the Oneway and Woodcut are perfect arcs, and do not drift.

robo hippy

Re: Coring Device

Dale Gillaspy

Mike Mahoney has also cored tens of thousands of bowls, roughed and finished all of them. He turns more bowls in a year than most do in a lifetime. It's not really a good judge of how much stress the system puts on a shoulder.

That's kind of like judging a truck on it's performance in the Baja 1000 when most people just want to take it camping once in awhile.

Re: Coring Device

Donna Banfield

You're right Dale. It was probably the years of lifting the logs and bowl blanks. That's how both my rotator cuff tears happened. Trying to muscle 100 lbs or more blanks up to the stump for chainsaw work, or lifting them onto the lathe.

I've owned both the McNaughton and Oneway. McNaughton was first, and even with Mike's DVD, I still struggled. A friend let me use his Oneway set up, and I sold the McNaughton and purchased the Oneway. I cored frequently for about 6 years when I was selling regularly at weekend craft shows. Stopped doing the craft show circuit when the economy hit the skids, and the show promoters started 'renting' their booths to the Cutco knife people, the vinyl siding people, the condo time-share people. I understand they were trying to fill the shows, but the consequence was that the better customers left, and some weekends it was a 'good' show if you made back your booth fee!

I now sell in 7 stores, and most of them want the 13"-15" salad bowl, as that's their best seller, and mine. It takes me only 20 minutes more to finish turn a 13" salad bowl over the 8" fruit bowl. It's a no-brainer for me. So I sold the Oneway coring, and now slab every log 4 1/2" to 5" thickness. I get a larger yield of that diameter blank. And now that I have a Woodmizer LT40 Hydraulic, it goes faster, too. Those 2 shoulder surgeries taught me to work smarter, not harder :-)

Re: Coring Device

Gbalock

I've only used the Oneway and love it. It works like a champ and the cutters are a breeze to sharpen. I purchased the Oneway sharpening jig to go with it and nothing could be easier. The bottom line, whatever you choose, you'll probably be happy with it.

Re: Coring Device

Jerry Maske

Well, it seems that the battle lines are drawn between the Oneway and the McNaughton. Kind of expected that and I appreciate the various opinions.

I had the chance to try a McNaughton this weekend and didn't have any trouble with it. There's a couple of things you need to know, or learn, and I did. After that it went just like it's supposed to. The fellow that was showing it to me actually loaned it to me so I could bring it home and practice with it. The other part is that he wants to sell it, and if I can get to learn it and like it, I'd be a good candidate. So I'll spend a couple days working with it and see where things go.

I like that the McNaughton has the control of the blade in that I can rotate the head and go deeper or more shallow. It's not hard to figure out where the tip is in relation to the outside surface and follow it. So it makes Rough Turning a simple task. I don't always do bowl forms that would work on one of these things, but if I do, it looks like a pretty easy way to do the inside as well as saving the core.

Jury is still out, but if I can get this one at a good price, I suspect it's the one I'll settle with. Appreciate all the responses.

Jerry

Re: Coring Device

Jerry Maske

Spent a good bit of time yesterday playing with the coring tool and have concluded that it's NOT the tool I want. Actually, I'm not sure that tool even exists. The blanks I'd be coring are too deep to allow the cutter to get in far enough to be effective and still make the turn at the bottom without taking out a LOT of Kerf. So, it's good that I know it doesn't work the way I want it to and that I won't spend a bunch of money on a tool I don't need.