Demo The Mastodon, a bowl coring machine. (Video made for the woodturners worldwide symposium 2022)

[@RonAlcock]

Love it, innovation at its best, its good to see people who use there brains to get things done better.

[@peterfabricius662]

That is an amazing machine. The two of you did a great job building it, using inspiration is the way of the world and how we make progress. I wish I was nearby to buy some of the last cut small bowl blanks…. Thanks for the video. Canada. 🇨🇦 🇨🇦 🇨🇦

[@thejoykey7439]

Ronald great to see the machine in action after having turned bowls at your course that came off it. And very nice to hear you and Jan acknowledge the people who inspired you.

[@JamesBondDZero7Mi6]

Love to see homemade tools. I'm using a late 1800s wood lathe from my family's winery and cider mill operation that ended after prohibition in the late 1930s. It was used for many wooden spindles for the mill's operation. Back then, everything was made from wood. It has a 14" swing and can turn a spindle up to 8 feet long. I added a treadmill motor & all the controls so I could get variable speed, reverse, etc. I've been making many bowls and also use the Oneway coring system. I use the exact same cutter you use and I'm too cheap to buy the expensive holder sold by Hunter Tool Systems. It's hard to beat carbide especially when they cost about $1 USD. I can cut nearly 100 bowl cores with one cutter. I thought the Mastodon looked familiar. I've watched the coring videos from the Holland Mill and the Alaskan Mill. The one problem with these swing coring systems is that all the core shapes are very standard. I've thought about the McNaughton System but that looks like too much work. I sure would love to have a larger lathe. the Oneway 2036 or 2436 would be ideal. So glad I found this video. Awesome job with the build, the demo, and the explanation. Next up is to subscribe to your channel. I look forward to more videos about your woodturning. Regards, Greg

[@ronaldkanne]

Thank you Greg, for your lovely reply. That looks like a great machine you have! I love these old quality machines.. 🙂

[@patcummins6036]

Awesome guys and Leis, ( I hope I spelled your name correctly)! That really appealed to the mad professor in me. I see the Mastodon as being a three way marriage of timber, steel, and ingenuity and I congratulate you guys on that from here in Australia where I’m just starting out wood turning. My first wood lathe I built myself and I was fortunate to escape with no injuries the first time I tried it out as it flew to pieces, jarring the bowl gouge from my grip and sending it spinning past my ear, ricocheting off the man cave wall and falling to the floor! The home made, and designed tool rest, landed on my foot, fortunately my work shoes prevented any damage. Ahh well! All part of being a mad professor, I guess.😅. I have since purchased a small second hand lathe.

[@ronaldkanne]

@@patcummins6036 wow Pat! Take care of yourself! Keep safe and be careful!

[@guillnadeau]

This is pure madness!!!!

[@thomascollins72]

Interesting and entertaining video. I love machines and when people create their own solutions. Looking forward to more videos. Thank you.

[@ronaldkanne]

Thank you for your kind words Tom!

[@jamesbrasseaux133]

Awesome machine!

[@89Albatross89]

What an amazing design. The “Mastodon” is perfect for your business. Congratulations to your design insight and your friend’s engineering/manufacturing skills. I was just realizing that you offer woodturning classes in the Netherlands! So I thought, what a great opportunity to visit your country, meet you and your photographer (!!) and the opportunity for you to show me how I really am in need of mentoring regarding my turning skills (?) Could you forward a registration certificate for a course in the summer of 2024? Roger…from Pebble Beach, California. Thanks…you and your Channel (and photographer) give me great joy!

[@richardjacques6370]

Amazing

[@cpbenjie]

Hi Ronald, Hi Jan, hope you are both well. Love the Mastodon, great piece of engineering and a really cool name.

[@ronaldkanne]

Thank you Chris! We're all fine here and hope to get to the UK somewere this year again...

[@cpbenjie]

@@ronaldkanne Will look out for you.

[@caspersx200]

Brilliant, very impressive

[@MichalisCholevas]

Great work Jan and Ronald! Keep it up!!

[@paulhedman7387]

I enjoyed this video very much. If I made more bowls and had the room I would love to build something like this.

[@danielbiyatanov9892]

I love it.

[@ronaldkanne]

Me too...:-)

[@SonCraftvn]

Very nice

[@dtork47]

Pretty amazing design and construction,very clever. Appears to be almost no vibration, incredible. Wondering about rpm range? Would have loved a closeup of the cutter in the tool……did I miss it? Stay safe…

[@ronaldkanne]

There is a close up of the cutter in the video. It is a carbide cutter screwed on...

[@davidcochran9322]

Awesome machine. Could you use a unidirectional pin/cam jam rather than a screw? Lise was definitely laughing. You really need to consider a “cricket box” protector - ideal height for pelvic area contact!!

[@fern6114]

Respectfully From Luxembourg 🇱🇺 Europe in the BeNeLux

[@wantlessobject]

Awesome machine! Also, very pleasing shape to the rough bowls. I've seen many times a very unpleasing shape after using a regular coring system.

[@ronaldkanne]

Thank you! I completely agree. 🙂

[@JoelAllen-xj4cg]

I wonder if the screw is part of the main spindle or part of faceplate?

[@ronaldkanne]

The screw is welded to the faceplate and the faceplate is screwed to the spindle...

[@JoelAllen-xj4cg]

Wish I could talk to Jan about bowl/faceplate/knife geometry. Needs to remain proprietary info of course. I don't speak Dutch but have a 93 year old interpreter.

[@josenilton7571]

Sou um grande fã Ronald estou pensando em construir um mastodont aqui no Brasil me expirou 💪🏼

[@Faber_Nox]

That Mastodon machine is truely awesome, where do I buy one or how many beers would it cost me 🤣. Good to see another video up, would love to see a typical day vlog of your working day as a woodturner. BTW Lise aka cam girl Keep Ronald laughing!

[@ronaldkanne]

Thank you Will, a vlog of my woodturning days would be pretty boring i guess...🙂

[@paulatkins894]

Great video. A few of the local woodturners and I are going to make a similar one this summer. Ive been wanting to do it since I saw Holland bowl mill video years ago. What would you do differently if you were to do it again? Thanks.

[@ronaldkanne]

Thank you Paul. What would i do different!? If I would build it again i'd do it 15 years earlier...🙂

[@JoelAllen-xj4cg]

Amazing machine! Can you tell me what RPM the bowl turns? Thanks

[@ronaldkanne]

i think it is 800 rpm max...

[@JoelAllen-xj4cg]

@@ronaldkanne My best friend's dad is Dutch - He made his fortune here in America!

[@ValioMadre7]

I'm headed to Harbor Freight to buy one of these. I could use a bowl coring machine.

[@ronaldkanne]

Let me know when it is delivered! :-)

[@PeterToch]

I viewed your video with great interest and found it fascinating. Thank you. I do have two question: 1) In your video you mention that your cutter is a CCGT06 carbide insert from the metal machining world. Would you please let me know the complete identification code for the carbide insert which describes additional properties such as the hole, chip breaker, etc? 2) Is your carbide insert mounted such that it enters the wood at a negative rake angle so as to possibly reduce catches? If you use a negative rake angle, approximately what is the angle? My intent is to use carbide inserts on the McNaughton Center Saver knives. Looking forward to you response, Peter Toch, Virginia, USA

[@Oldfrenchgirl]

I will buy one in a second if you ever decide to make some to sell

[@ronaldkanne]

Don't do it! it leads to work! 🙂

[@RubenWoodcraft]

Nice machine Ronald. Lies was totally right, it should have moved over 8.5 cm 😄.

[@ronaldkanne]

🤣🤣

[@abniezenster]

Hallo Ronald ik leer een hoop van je video’s. De Mastadon heb ik op you tube ook met 3 messen gezien dus 3 schalen te gelijk draaien. Hoge productie dan. Eff. Aanpassen?

[@ronaldkanne]

Hoi Ab, ik ben bang dat als ik dat ga doen de rest van de straat zonder stroom zit...🙂

[@ceciljanise2318]

Do you think it would help to use wax on the mounting threads to make it easier to unscrew the remaining wood ?

[@ronaldkanne]

I don't think so Cecil. The remaining wood is pressed on the screw harder and harder every time i core a bowl... and i also need that friction for coring...

[@kc696969]

Ronald. this was a great video. A Wood Turning Club of ours would like to make one of these machines. Did your fabricator make shop drawings that can help us. We are good at turning wood, not so good at design and fabrication. Of course we would have bought a machine from you If you ever made another one. thanks. KC

[@ronaldkanne]

Hi KC, We just started building and did not make any drawings or so... so I don't have a drawing aor a plan....

[@elliottsimkins74]

The only problem I see, is that there is no way of attaching the bowl to the Oneway lathe! I guess you can use a glue block! I have a small coring machine, but it’s done in reverse! You have to put a tenon on the front, before you core the biggest piece, and then core the next larger piece!

[@ronaldkanne]

Hi Elliot, I don't see the same problem. In this video I explain how I remount them on the lathe... kzbin.info/www/bejne/kInUiXiEjbOAq8U Is that the answer to your problem? or did you mean something else?

[@MrErViLi]

I know you say it's homemade and not for sale but you should really make it for custom order. It will sell.

[@kc696969]

Ronald. Is it possible you can find a person who can make CAD drawings of this machine? I can pay for the services. Our Turning Club would love to own one like yours. KC

[@ronaldkanne]

I don't know anybody willing to do that KC. But it is not that difficult. Heavy machine with spindle. The thing to watch carefully is the design of the knives. They must have the exact same radius horizontally and verrically. And the pivot point of the knife must be in the middle of the spindle..

[@johnwoods9995]

very impressive, butbamboozling to an office boy like me.

[@robertcornelius3514]

Nice machine, but unfortunately not too many users will have the gift of sharpening it.

[@ronaldkanne]

No sharpening needed Robert. There is a carbide tip screwed on the tip of the knife...