How to Carve a Bowl with the SpheroPlane | Tutorial with Kevin Inkster
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- Опубліковано 7 лют 2025
- In this video, learn how to carve your first bowl with the SpheroPlane®, guided by Kevin Inkster, founder of Arbortech Tools.
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A great looking tool. It would be nice to see how it goes on a dough bowl.
We have a video coming out in the next few weeks on dough balls. Stay tuned!
This looks awesome! Time to start saving up some hobby money! I look forward to playing with this new tool! Thank y’all for making such awesome tools!
Can't wait to hear your thoughts on this one!!
love the design of this. Angle grinder attachments are so often so dangerous, but this design manages to make it remarkably safe, as well as clean, with the vacuum attachment. My only thought is that the rim should be made out of a harder material than plastic to prevent it from wearing down.
Hi Jeff, that was a concern so we opted for a very high glass content and a high wear plastic. It still wears a slight flat and then stabilizes. We were ready to include a clip on metal shield but after extensive testing concluded it wasn’t necessary.
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Thanks for replying, Kev.
Looking forward to seeing more videos from newbies. My first attempt has been disappointing
More videos to come! It takes a bit of practice to get the hang of the SpheroPlane, but once you master it, everything would be easy!
Yes I admit there is a bit of technique that needs to be learned particularly with the bowls. Spheres are easier in my opinion. We trialed this with staff many of whom had little or no experience. Most did very well with it and you can see the results in the videos of the Arbortech woodcarving competition.
Wow! You knocked this out of the park! ⚾️⚾️
Thanks Brett, glad you liked it!
This is so cool! Looking forward to trying this out.
Thank you!! Can't wait to hear your thoughts!!
this is an engineering marvel and by when will this be available to order. thank you again for for such contribution to the carving fanatics and also for the sharing marvelous the technology. warm regards, Amit
Thank you for the kind words! It's available to purchase in Australia now and will be ready in America and Europe just in time for Christmas.
@@ArbortechWoodworking thank you. that’s great as I have to make the buy from States will wait when available to make the purchase 👍
Sadly I went to order and see now it will be quite a wait still.
We haven't opened pre orders yet John, feel free to sign up and we'll let you know when its instock and available!
@@ArbortechWoodworking thank you. I will definitely do that. regards, Amit
Interesting product, Kevin. It has baffled me for a while but now i understand WHY it works so i think i will buy it. I have a couple of questions though. From the level position, how far inward can it retract...and from this same reference, how far can it protrude? Secondly, what is the diameter of the guard at the contact points. I just want to make informed decisions before i start any project. Thanks. Again, this is a genius product.
Thanks for the questions George. Understanding how it works is crucial for using this tool and once you understand it, you’ll find it easy to use. I can’t say exactly how far inward the Blade retracts except to say that the minimum sphere you can produce is about 90 mm in diameter. Even if the blade could retract further, the geometry of the blade is such that it would no longer cut a smaller sphere as it would rub against the center of the blade. In terms of how far the blade can extend beyond the guard, I think it is about 10 mm and the smallest bowl I’ve been able to produce is about 110mm in diameter. There is no limitation to the maximum size of either a ball or a bowl However, with the bowl, there is an intermediate size where the limitation of the geometry of the length of the SpheroPlane and the angle grinder may get in the way. The blade is 50 mm in diameter and the guard is 90 mm in diameter. The adjustment ring is designed to give very fine adjustments because even a small change in the position of the blade can have a large effect on the diameter of the bowl or sphere, you’re trying to produce. I hope this answers your questions, but please feel free to contact me if you need more clarification.
Kevin, thanks for your speedy response; I really appreciate it. I think you answered majority of my questions.
I got to understand your magical device only by pulling out a pen and paper and doing some little math...and it checked out. Honestly, I was amazed. I'd call this Sagitta-Magic if I had invented it. LOL . On paper, after reviewing the geometric properties of a circle, I realized that once the chord (your fixed guard contact-points ) is kept constant, the tool will cut an arc with a fixed radius and ends up blending multiple arcs of the same radius to give you your final product. Now, if you modify the sagitta(versine) by adjusting the tool, you will get a new arc radius for that chord that does not change. Genius! I really love this tool.
I think you should develop a small calculator on your Spheroplane page for bowl and ball carving enthusiasts to make informed decisions with a few inputs before they start any project.
Also, I hope you and your R&D team can come up with a mini palm-held version ( like a regular orbital sander but smaller and still powerful).
I don't carve bowls, but my brain is racing as I think of all the creative ways I could use this wonderful tool on my wood sculpture projects.
Thanks, Kevin. You are the man!
Thanks Kev for the response!
This looks like it will be a ton of fun.
Looking forward to being able to order and try it out.
I am heading out to wood pile now to start getting some blanks ready :)
Will we be able to pre-order these?
Thanks for the feedback! Where are you located? You can purchase now via our website if you are an Australian resident, otherwise it will be ready for release in Europe and America by Christmas.
@@ArbortechWoodworking
Thank you for te reply.
I am in US, so will have to wait :(, but will be waiting patiently for the announcement.
@@cgseymour Should arrive just in time for Christmas!
@@ArbortechWoodworkingThanks for this information! I looked at this Video a few minutes ago and I am fascinated! I would like to work with this tool, but I live in germany.
Hi @arwalt5310, the tool should be in Germany by end of November.
Very nice. What was your time to make that shallow bowl?
This bowl took Kev around 2 hours to carve.
Por favor, avisen cuando esté disponible para su compra.
Saludos y gracias por tan buena herramienta!!
Hi there! It is available to purchase in Australia now, all other countries should have it by end of November :)
I better start saving up and making a spot for this
Glad you like it!
Got one now and will hopefully have my first play today
I have a half log. Thinking of using this to carve a bowl. Thoughts?
Hey Steve! Yep, would be a great tool to carve a half log with!!
I’ve only seen this used on very large bowls. Does it work well on small bowls?
Hey Steve - yes, it does. We have a small bowl video coming to UA-cam hopefully in the next week or two.
Great looking addition to the Arbortech arsenal. But this look like it would take forever on a large piece like he’s working
Took about 4 hours but can be much faster if I used the Turboplane to hog it out first.
Thanks for the comment, David. As Kev mentioned belo, you could use the TURBOPlane to hog it out first to save time :)
ok. i have to have one. 😁
Yeah, you do!!
Have a bowl ????? :-) :-) :-) I like it !!! I'm going to your web-site now!
Please do! Enjoy!
Any thought of mounting the timber on a mechanized “lazy Susan” to allow you to simply hold the tool in place at desired angle and let the “Susan” just spin to give you an equal height all circumference. Anyhow.
That's a great idea!
Think along the lines of a potter’s wheel.
Can you do oval bowls with this?
You certainly can! 😊
In this video by John McGrath, he makes various bowls, including an oval dough bowl using the SpheroPlane. I will be releasing a video shortly, demonstrating how to make various oval shaped bowls using the SpheroPlane.
How should I use the tool on a 2 foot long tray?
Shoot us an email with pictures and we'll get Kev to give you some pointers :)
How long did that bowl take to make?
How long does it take to make a 12” sphere ?
How long does it take to somewhat master the technique of using that tool ?
Like anything else in life, there is a learning curve - can anyone figure this out with a little practice ?
Thank You for your time.
Hi there and thank you for taking interest in our product! 😊
- This bowl took roughly 4hours to make but depending on the depth, experience and type of wood, the time taken would vary.
- As mentioned above, it depends on a few factors such as experience, type of wood, etc...
- It doesn't take long to master it. All you need is some practice. We've got plenty of videos showing the tips and techniques to master it in an efficient manner. ✌
Found my xmas gift this year
Hope to see some amazing carvings from you! 😊
Any idea when ordering is turned on for USA?
Late November! Sign up to our Mailing List to be the first to know!
Can this work with an eclipse for like a dough bowl?
Hey Steve, yeah it absolutely can!
I’ll be doing a video soon making an oval shaped bowl.
Can you use the sphere cutter on any angle grinder?
Hey there! The SpheroPlane is compatible with the Arbortech Power Carving Unit as well as any standard 115mm (4 1/2in) or 125mm (5in) angle grinder with an M14 thread.
When will this be available to purchase?
Hey Marybeth, it's already available for purchase in Australia and will be arriving in North America by mid-November and in Europe by the end of November or early December. Sign up to our mailing list for details!
How deep of a bowl could you make with this
The depth will vary based on the radius of the bowl. ✌
@ArbortechWoodworking can you elaborate
Generally speaking the maximum depth is half the diameter of the bowl. So a 300mm bowl can have a maximum depth of 150mm, but there are some situations where the angle grinder body may limit the depth.
Reckon that's my christmas pressie sorted, now who can i get to buy it for me. Cheers
Ha ha ha!