How to Order and Set Up Oneway Coring System Easy-Core Bowl

Oneway Easy-Core Coring System Order and Set-up

The Oneway Coring System is a fantastic way to core out additional bowls inside larger bowl blanks. The process of purchasing the Oneway coring system needs some explanation.

How do I order my Oneway Coring System Easy-Core?

You can not merely do a one-click checkout when purchasing the Oneway Coring System. Instead, you need to make sure you match several components to your lathe and your specific needs.

In this article, I will help you understand the various components of the Oneway Coring System and guide you to the correct parts for your lathe.

After the parts are determined and ordered, I will show you how to set up your Oneway Coring System Easy-Core.

What Is A Wood Bowl Coring System?

When the outside of a medium to large bowl is rough turned, instead of just shaving out the center, additional new bowls extract from that larger bowl blank interior.

From one bowl, two, three, even four or more bowls can emerge. Not only is this amazing, but it also saves wood, produces fewer shavings on the floor and makes multiple bowls from one bowl blank, not to mention it is a thrill to do.

Bowl blanks in the 10-14” range can yield an 8-12” bowl. So a bowl around 8-10” across can be cored to yield another smaller bowl. Larger blanks can produce more bowls.

The process of coring bowl blanks is relatively simple, effective, time-saving, and material-saving.

Oneway Easy-Core Coring System Examples

Oneway Understanding

When I hear the term “oneway” I think of oneway roads and cities I’ve visited that seem to have an excess of oneway roads.

The process of purchasing the Oneway Coring System is much like navigating a city filled with oneway roads. You can turn here but not there, go right but not left.

Even though there can be some confusion when purchasing the Oneway Coring System, I do understand the issue from Oneway’s point of view.

Across the world, there are numerous different types and sizes of lathes. Manufacturing a fantastic coring system that works with most lathes is quite a feat in itself.

Each lathe needs a different base set coring system that is dependent on the lathe swing size. 12-inch swing lathes have a shortcut solution which works well, which we’ll talk about in a minute.

If you have a lathe with a 16- to 26-inch swing, there are a few parts you will need to order specific to your lathe and your needs. Unfortunately, the purchasing process can be a bit unclear at times.

Not to worry, I will help you navigate through the process of getting just the right parts to set up a Oneway Coring System on your lathe.

Three Key Measurements

You need to know three things to get the right parts to assemble your Oneway Easy-Core Coring System.

  • The Lathe Swing – distance from the center of the headstock to the bed ways or rails
  • The space between the lathe bed ways or rails
  • What are the average bowl sizes you are coring

Three Oneway Coring System Components

There are three main components to the Oneway Coring System: the Base Set, the Clamp Block, and the Knife Set.

You need all three components to have a functioning coring system.

The Base Set is the most significant element and as the name implies, the base or hub of the coring system. The Base Set holds the Knife Set and the support armrest for the knife.

Under the Base Set is the Clamp Block that holds the Base Set to the lathe rails or ways.

Knife Sets are inserted into the Base Set as needed to cut a specific diameter core. One Knife Set includes one specifically sized diameter knife and its corresponding support armrest.

Oneway Easy-Core Coring System Identified and Labeled

The Oneway Base Set

Oneway’s Base Set is the heart of the Oneway Coring System and needs to be sized correctly based on your lathe swing.

The Base Set does not come with any cutting knives, you select the knife sets separately, and we’ll cover that in a bit.

The swing of your lathe, the distance from the center of the headstock to the rails or ways, is used when ordering the Base Set.

Oneway Easy-Core Base Set Headstock Height

For example, a lathe headstock to ways distance of 8” between equals a 16” swing, a 10” distance equals a 20” swing, and a 12” distance equals a 24” swing.

There are Base Sets for lathes with 16”, 20” and 24” swings. If you are turning on a 12” swing lathe, there is a shortcut kit.

12-Inch Swing Shortcut

If you are turning wooden bowls on a 12” lathe, Oneway makes a specific Oneway 3270 Easy-Core 12″ Mini Coring System just for 12” lathes.

This kit includes the Base Set and one Knife Set. You only need a Block Clamp specific for your lathe to complete this 12” coring set. We’ll talk about that in the next section.

Because the 12” lathe has a smaller area for turning bowls, only one Knife Set is available for this size lathe, and it is part of the 12” Mini Coring System.

Even though only one knife is available, you can still make two bowls out of one bowl blank, and that is a double big deal.

The Oneway Block Clamp

The Base Set needs to be anchored and held in place with a Block Clamp, and the Base Clamp fits snuggly between the bed rails.

Because manufacturers have different distances between the bed rails or ways, you need to make sure you get the right Block Clamp for your lathe.

Measure the distance between your rails and order the Block Clamp that matches that distance.

Oneway Easy-Core Block Clamp Rail Bed Width

Measure the distance or gap between the bed ways or rails.

1-1/2″ space between rails, purchase Oneway Clamp Block 1-1/2″ Gap
1-7/8″ space between rails, purchase Oneway Clamp Block 1-7/8″ Gap
2-1/2″ space between rails, purchase Oneway Clamp Block 2-1/2″ Gap

*At this point the Oneway Easy-Core 12″ Mini Coring System is complete, no other items are needed other than a sharpening jig to sharpen the blade, and perhaps an extra spare cutting tip.

Oneway Knife Sets

Each Knife Set includes a cutting knife with Cutter tip and a correspondingly sized support armrest.

Take a moment and determine what size bowls you typical make or potentially want to make. The size or sizes of the bowls you make determines which Knife Sets you need.

Also, the Knife Sets can be added later as you go as well. You only need one Knife Set to begin coring.

The size in the name of each Knife Set indicates the final bowl diameter that Knife Set cut. So a 9” Knife Set has a 4.5” swing, the 11.5” Knife Set has a 5.75” swing, the 13” Knife Set has a 6.5” swing, and the 16” Knife Set has an 8” swing.

If you make a lot of 10-12” wood bowls, the 9” Knife Set may be all you need at this point.

On the other hand, if you like making large bowls measuring 18” or larger, you might want to purchase all four Knife Sets.

I use the 9” and the 11.5” Knife Sets for most of my wood bowl blank coring needs. On average my largest bowl blanks are around 14” to 15” in diameter.

Oneway Easy-Core Knife Sets

Easy-Core Cutter Sharpening Jig

One last item to include with your set is the Easy-Core Cutter Sharpening Jig.

I did not order this simple little device initially, and my Cutter tips suffered a bit because of that. I recommend using the sharpening jig to get clean, crisp, sharp edges every time.

Once you are through with this article, be sure to read this article all about how to sharpen the Oneway Easy-Core Cutter tip.

Oneway Coring System Links

I have compiled a list of the links you need to purchase all the components necessary to get your Oneway Coring System up and running.

This list is also posted in the Recommended Coring Equipment sections.

Base Sets
Clamp Blocks
Knife Sets
Tailstock Extension
Cutter Tip

I recommend purchasing an extra Cutter tip.

Over time, the Cutter wears down and needs replacement.

Also, there is a risk of dropping the Cutter tip when it is removed from the Knife Set.

It helps to use a magnetic tray to hold the Cutter and the holding screw when you are sharpening. However, I like to have an extra Cutter tip on hand just in case.

Oneway Cutter Tip Removal Magnet Tray

Setting Up the Oneway Coring System Easy-Core

Well, you’ve done it, you’ve navigated the sizing and purchasing process, and you have your new Oneway Easy-Core Coring System. Now it’s time to set it up.

How do I set up the Oneway Coring Easy-Core System?

Here are the steps for setting up the Oneway Coring Easy-Core

  • Use the supplied bolts to fasten the knife and rest holder posts in place on the Base Set.
  • Be sure the Knife post pointed base faces outward towards the headstock.
  • Remove the banjo from the lathe, or remove the tool rest and slide the banjo against the headstock out of the way.
  • Set the Base Set on the lathe rails.
  • Position the Block Clamp under the lathe rails so that it fits snug in between the two rails.
  • Take the Block Clamp bolt and run it through the clamp and start the threads into the Base Set.
  • Snug the Block Clamp bolt but don’t tighten it yet.
Oneway Easy-Core Coring System Base Set Assembly
  • Find the center point of the headstock and adjust each Knife Set to precisely the center point of the headstock, by using the set screw and nut at the bottom of the Knife Set.
  • Adjust each Knife Set support armrest to fit snuggly up under the cutting knife leaving no gap or space.
  • The Knife Set handle can be attached to the swinging cutting arm of the Knife Set using a hex wrench.
Oneway Easy-Core Coring System Height Adjustment

Note – be sure the support post base cylinders stay clear of debris and shavings as that can affect the height of the Knife Set.

Now, the Oneway Coring Easy-Core System is all set up and ready for use.

Centering the Oneway Coring System

The most important part of this set up is to have the top edge of the Cutter tip at precisely the center cutting line of your lathe.

Before setting up your coring system, turn a bowl blank and position the solid bowl center facing outward.

With the lathe running, make a light pencil tick at the very center point of the bowl blank. This mark is the center line of the lathe, and you want to hit it perfectly when adjusting the Knife Sets height.

If you have a 26” lathe, which I’ve yet to see one in person, you can purchase the 24” Base Set and extend the set screw downward on the Knife Set to center the knife cutter as you need.

I will be posting a detailed article soon about how to use the Oneway Coring Easy-Core System. That article will include all the details for how to operate this system and how to precisely size and core out each bowl.

Oneway Easy-Core Coring System How To Size and Purchase

Oneway Coring System Set-Up Conclusion

The Oneway Coring Easy-Core System is a bit tricky to understand at first because of the multiple parts needed. However, once you’ve sized and ordered your specific elements, the whole system takes shape and becomes much clearer.

I hope this article has helped you see how to size and purchase your Oneway coring system.

If you are ready to use the Oneway Easy-Core Coring System be sure to read this complete How To article.

Remember to keep the cutter tip sharp at all times. Here’s an article the shows spefically how to sharpen the Oneway Easy-Core Cutter tip.

There most be some questions, please post a comment below and I’ll be happy to help.

Be Sure To Also Checkout:
Oneway Coring System – Complete How To Guide
Oneway Coring System – Cutting Tip Sharpening How To

Happy Turning (and Coring),

25 Responses

  1. After using the Oneway coring system to core about 25 blanks on my 16″ lathe, i suggest folks expect substantial levels of fine sawdust during coring of dry big-leaf maple and oak. I installed an overhead wood dust collector that pulls from 550-1044 cfm: this helps collect fine dust and i wear a dust mask.
    – Another tip: the provided handle seems a bit short so i insert a 12″ screwdriver to extend about 8-10″ and give more leverage and control.
    – I use speeds about 400-500 rpm.
    – I also rub a bit of candle wax on the cutter-tip sides which seems to ease the cut, particularly after the cut is halfway.
    – I also keep a stiff long-bristled brush handy to wipe the cutter tip, which collects much more shavings from the final third of each bowl cut.
    ►Overall a high quality coring system that is safe and results in many usable cores.

    1. Matthew,

      All great points! Thank you for writing and sharing!

      All the best to you and Happy Turning!

  2. Hello Kent,
    Are you using the 24” Easy Core on your American Beauty?



      1. That was a great read, thank you for taking the time to provide such detailed information 🙂
        I’m looking for a supplier here in Australia as I’m prepared to invest in a set.

        1. Stephen,
          My pleasure. I know how confusing it can be to sort through all that info and product list.
          I hope you find a source down under. Perhaps, Vicmarc can make a version? 😉
          All the best to you and Happy Turning!

  3. Oneway also sells a 10″ corer in addition to the ones you mention.

  4. Great article and I enjoy your videos on youtube!
    You mention 12″ swing in your Base Set chart and then jump to 16″ swing…
    I have a Delta 14″ (46-715) Lathe. What base do I use for a 14″ swing?

    1. Mark,

      I would check with Oneway. I’m guessing that you might be able to use the 12″ and adjust the arm heights, but I’m not sure. They should have the answer for you.

      Happy Turning!

  5. When using the coring system and you core out 3 bowl blanks, how do you mount the middle bowl for turning?

    1. There’s plenty of material. Once the blanks dry, I’ll turn a tenon, shape the exterior, flip it, then turn the interior. Happy Turning!

    2. Hi
      I will be purchasing one of your sytems as soon as i sell my Bowlsaver Max 3 coring system. Im selling it because of its inability to core anything other than soft wet and green wood. I work with a lot of very hard woods and burls, so i need to be confident that your coring system can cope with this before i purchase it.
      Kind regards
      Craig from Tasmania.

      1. Craig,

        Thanks for writing and sharing.

        You’re in Tasmania?! Very cool, I did a 3rd-grade school paper on Tasmania. Funny how we remember things like that! 😉

        Oneway makes carbide tips for the cutting knives now. I highly recommend them as they reduce your need to sharpen.

        All the best to you and Happy Turning,

  6. I am in the process of purchasing the oneway bowl coring system and have provided the oneway folks with all the data on my lathe . The largest blanks I will likely turn will be between 10 & 11 inches, they have suggested I get the 9 & 11 1/2 inch knife set. Are they both necessary and usable with the size of blanks I will be turning. I am working on a Nova DVR xp lathe with a 16 inch swing.

    Appreciate any assistance you can provide.

    1. Good question. If you think you won’t turn anything larger than 11 inches, then no the 11-1/2″ knife would be pointless. If you get up to 14 or 15-inch blanks, then yes it’s nice to have both.

      1. Thanks Kent;

        Greatly appreciate all your assistance and all the excellent information you provide in your articles. I will be ordering my oneway system early in the new year. I have been turning for 18 years focusing mainly on segmented bowls, but have recently moved to a area in southern BC that has a unlimited supply of beautiful maple so will be putting my new oneway coring system to good use.

        Thanks again for sharing your endless supply of knowledge, have a great New Year.


        Wayne Campbell

        1. Wayne,

          Thank you for your kind words.

          I wish you all the best in the new year and beyond!

          Enjoy that Maple!!!

          Happy Turning,

  7. Can you explain how to set up base of oneway coring so that i dont core through bottom of bowl How far from chuck should I set the base

  8. Can you explain how to set up base of oneway coring so that i dont core through bottom of bowl

  9. Hi Kent, I have a Oneway 1640 lathe with the outer bed extention (24 inch long), that let me turn up to 24 inch diameter bowl. . I also have a riser block of 4 inch high that let me uses my tale stock as well. The question is , would my 24 inch bed extention be long enough for me to use the coring systeme. Will I have enought place to use my tale stock as well ? Because If Calculate the chuck thickness or face plate (3 -4 inch), the riser block lenght (6 1/2 inch) the tale live center (2-3 inch) , all those would only leave me 12 inches left to accept the wood blank and the base set of the coring system. What should I buy? The 16 inch base set and the first 3 knif size and only use my main bed (40 inch). Or should I still buy the 24 inches base set and use some of the larger knives size! Did I forget some other things to consider? Thanks in advance for tour precious advises. Please excuse my poor english, I’m from Québec Canada 😉

    1. Martin,

      Thanks for writing and asking your question.

      OK, let me see if I understand this correct. You have a Oneway 1640 Lathe. That should have a 16″ swing with a 40″ long bed. If that is correct, then you must use the 16″ Coring System Set-up.

      The coring system base set is based on your lathe’s swing, in your case 16″. You should have plenty of room for the coring system and your tailstock. I recommend you get this coring base system, here’s a link.

      Also, to make sure we are all talking about the same things, here’s an article about the lathe parts.

      Please let me know if this helps.

      Thanks and Happy Turning,

  10. I have a Rikon lathe model 70-220 VSR with a 6 – 1/2” from center line of the spindle to the base. I do assume that your mini model Oneway Coring system will fit my lathe. And the space for the block clam is 1- 1/4” width between the rails.

    So kindly confirm price and delivery of on set of Easyway Coring system. Also includes the two knifes to fit the system.


    1. Hello Alain,

      Yes, the mini-coring system should work with your lathe, here’s a link. This kit includes one cutting knife. Because of the 12″ size limit, there is only one knife with this unit.

      You will also need to purchase the clamp block number 3154-125. I can not find this item online at the moment. Try contacting the manufacturer for more on that part.

      Let me know how it goes.

      Happy Turning (and Coring),

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Kent Weakley-Turn A Wood Bowl-About
Hi, I’m Kent

Hi! I’m Kent, a husband, dad, papa, graphic designer, photographer, artist, traveler, birder, dark chocolate lover and I’m addicted to turning wood bowls! Learn more about me, see the online courses I made for you, and join our group on Facebook. Ready for your wood bowl adventure? Click here to Get Started

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