ฝัง
- เผยแพร่เมื่อ 17 พ.ค. 2024
- In this video I will show you the prosses of wood bending with a technique called Kerf Bending / cutting. Typically kerf cuts are done with a table saw, miter saw, or track saw, but in this video I will show you how to do them BETTER using a router! At the same time i will be making 2 beautiful curved floating shelves!. By no means did it come out perfect but I am extremely happy with the results!
Stuff I Used in the Video (Affiliate Links)
Makita Router: amzn.to/37Rhfww
Amana Tool Carving Bit: amzn.to/3ognm6A
Wrong bit: amzn.to/3ohseZ5
Irwin Clamps: amzn.to/3gw0gDO
Titebond III Glue: amzn.to/3L26dr6
Jorgensen 24-inch Parallel Clamp: amzn.to/3lZ8Hsx
Rode Wireless Go: amzn.to/341iSqd
Help support the channel:
www.buymeacoffee.com/JARMade
Thank you!
00:00 Intro
00:17 How Kerf Cutting Is Done
02:00 Cutting kerfs with a router
03:08 Bending wood/poplar
04:35 Cutting and bending walnut
05:56 Fixing mistakes
06:41 Finishing
07:04 Final Product / Curved Floating Shelves
Video is for entertainment ONLY, I am not a professional please be careful with any tool and try at your own risk.
#diychannel #maker #woodworker #howtobuild #jarmade - แนวปฏิบัติและการใช้ชีวิต
You can now buy the Floating Shelves here!!
www.etsy.com/listing/1458833985/oval-floating-shelves-o-bent-wood
Next time you go to bend the material… have a template set up and fastened down, that you can clamp to. This will allow you to keep one hand free to hold your iron.
BTW… drape a wet rag over your miter cut area and keep the iron over them as you bend.. keeps the wood from drying and infuses the grain with steam.
I do this every day… I build cabinets for private jets.
uhh, that flex! ;)
@@Macks_Mustermann uhh, that pun! ;)
Must be some big cabinets or very tiny jets
Ummm…. The jets are big, cabinets are big. Principle applies to all wood bending. No matter the size.
Large hardwood(without miter/cerf cuts) gets the steam chamber.
I would love to see some of your stuff.
Gorgeous! I’ve never seen anyone use that bit to do kerf bending, but it makes perfect sense. You need so much less wood fill than using a circular saw. I think maybe you could make it a little safer by just plunging one quarter inch of the router per pass and doing each kerf over 3 passes. I worry that the skinny CNC bit is more prone to break with high friction. Overall you’re a boss and I loved this video and subbed
Yes, the tapered bit is excellent
The bottom of the curve is small and easily fill
Compared with a straight curve
I bought an 18 degree router bit to do this very thing. (5 cuts = 90 degrees) I decided I preferred an odd number of cuts because that allows me to use a cut as the center. I also did the math to figure out the bend radius in order to account for the gain in material length. Glad to see someone beat me to proof of concept!
Just wondering how do you do the calculation for accounting for material length due to the curve?
@@wolfslayer44 Picture a circle inside a box. The box touches the circle at the mid point on each part of the box. Measure from the mid point to the edge of the box. Figure out the circumference of the circle, 1/4 of the circle, 90 degrees, should give you the length of the curve. Subtract that length from the value of measuring the mid points to the edge of the box. If this is completely unclear, which it probably is, because I'm no math teacher, let me know and I'll see if I can do a better job of explaining the process. Also, there may be an easier way, but, this is what I came up with.
@@thisoldguywithagun9043 idk about anyone else. But that was crystal clear thank you so much!! I went from not understanding how to now i have the step by step logic to determine for future projects. You are awesome!
@@wolfslayer44 You are more than welcome and thank you for the kind reply.
This is why I love reading the comments on good woodworking videos, there are always people sharing tips and solutions. I wish I could save youtube comments!
Gotta say this is the first time I've seen someone attempt to do kerf bending on solid hardwood instead of plywood. Your solution is nothing short of brilliant, giving a nice clean and even result. The kerfs are nearly invisible, compared to the traditional methods, and if you wanted to, you could get rid of the remaining faceting inside and out with a bit of sanding. Nicely done and you've got a new subscriber. Thanks for sharing!
Thank you! I'm glad you enjoyed!
"Please do not try this at home. Link in the description."
Excellent project, great result, and I love the fact that you show the potential mistakes to help viewers avoid disasters. Well done!
One suggestion to help with the cracking issue. Guitar builders have to deal with this a lot, as we bend wood all the time. One thing we frequently do is to use a piece of aluminum flashing that is bigger than the bend we are doing and hold that against the wood, supporting it for the bend. We are usually doing that against a hot pipe of some kind, but I don't see why it wouldn't work here, too. You would need to clamp the work piece to the bench, but then use the flashing against the outside part of the bend and use IT instead of just bending the wood by itself. It backs up the fibers in the wood and helps prevent cracking. I hope I explained that well enough to make sense.
Nice project, it came out well. But definitely use Titebond I for light woods. In fact, I use it for almost everything. III has issues on some woods and in some situations. I is just about perfect unless you need waterproofing.
well said
@@alexnovik6223 Thanks. Glad it made enough sense. It's easy enough to understand when you see it, but a bit difficult to explain.
@@willmorrison1022 you explained it just perfectly !!!
Titebond II is stronger than I or III. Only reason to not use it is the ugly color, if you absolutely can't avoid squeeze out
@@Tibyon I tend to only use I, though for some things I use III. The thing that I read about years ago, and I can't verify that this is true, is that II has a bit of an issue with creep when used in an under pressure situation. As musical instruments are always under pressure, that is an issue. I don't know for a fact that this is an actual issue, but I do know a lot of instrument builders who won't use II for that very reason.
I gives plenty of strength, it's pretty well accepted that it will provide a joint stronger than the wood itself, so that is not an issue. Plus, instruments tend to have to be repaired, and using a moisture resistant glue for such cases is NOT a good idea. III would be a total disaster in that situation, and that is why a LOT of luthiers still use hot hide glue for instruments like violins. The instrument is designed to be taken apart and repaired, and it's expected that it WILL be taken a part at some time. Using a waterproof glue in this case would be HORRIBLE and cause your name to be cured for generations.
Choosing your glue properly is really important in some situations. Choosing the wrong one can be seriously detrimental.
Great job, for some reason I can't stop thinking of those as a custom home surround sound system. I think it would loom really awesome and modern.
I appreciate that you share your mistakes along the way. Hopefully it helps others from making the same mistakes. Keep up the good work.
Fantastic idea. I would consider routing the edges with a rounding over bit too, but this looks great!
Dude, I freaking love these! I also audibly gasped when I heard the walnut crack 😂. Glad they both turned out well.
Haha man my heart stopped when I heard that lol 😆 and thank you!
You did well with bending the wood. The idea of thinking outside the box applies here. Thank you for the video.
Editing, pace, script, concept, execution: all top notch. Well done!
Thank you!! Definitely felt better while making this one lol
I agree! My one recommendation to JAR would be to … s l o w d o w n … your speech a bit. I get that making a TH-cam video is exciting, but I did find the rushed delivery a bit distracting. Other than that, NICE WORK! 👍
Thank you! Yeah as a Spanish speaker I speak fast haha 😄
Dude, this turned out awesome!! Great story and love how the final project doesn't have those ugly gaps.
Keep bending wood! (And making videos)
Thank you Jake! And I definitely will!
You actually found a bit and did something I have thought of many times. Very cool bit and the results are stunning.
I think the pieces are Beautiful!! You have taken wood bending to the next level..
Hey this is a great method! Thanks for sharing.
Nice shelves. I'm thinking they would also make a good speaker box project.
3:26 was perfectly timed!
Amazing!!! I was sure that walnut was going to fail on you but you adjusted and made it work!!! Thanks for the video.
I was shaking when I was doing the walnut lol 😆
Great project, and I really appreciate your extremely dry humor!
This looks incredible. Best kerf bends I’ve seen. You’ve changed the game!
Thank you!
Nice looking results! Thanks for sharing the technique, it's a big improvement over the table saw kerfs. I think saw kerf bending assumes you are going to veneer the face, this gives you the option to do it without have to cover up the ugly kerfs.
exactly what i was trying to accomplish lol
Really cool experiment with kerf bending. It paid off for sure. These shelves are unique and look awesome!
Wow, what a great idea and I've never seen it done this way! Subscribed!
Great bend! You really did make a better kerf bend, and the shelf looks fantastic!
Awesome video and awesome results! As a luthier who deals with bending wood on the daily, I have some tips that might make things easier in the future.
Main thing is heating the area you're bending, but keeping it saturated with water/steam. Instead of heating the wood directly with the iron, soak the wood, letting it sit for at least a few minutes, add a bit more water, then cover the surface with aluminum foil before using the iron. This will help keep the moisture from escaping. I'd try to add heat for at least a few minutes before bending. This will really soften the lignin and let the fibers slip past one another while bending. It's important to let the water soak and penetrate, and also not evaporate from the wood. It's not the water itself that matters, but its ability to transfer heat deeper into the wood. As soon as the water is gone, the heat is only superficial, so you want it to stay as deep in the wood as possible.
Second tip is to use some sort of flexible metal to assist the bend on the outer side. Best material is thin shim stock/spring steel because it wont kink, but any thin and flexible metal like flashing will do. Just make sure it's always in contact with the area being bent. This supports the outer fibers, greatly reducing their ability to fray/split or otherwise come loose. Watch some violin/guitar side bending videos to get a good look at what I mean and it will make sense.
Hope this helps! As soon as my new shop is done, I'll be making some of these. I was just sitting out there contemplating what kind of shelving I want to do. This video made the decision for me!
here from reddit, great video! the chamfer looks really nice, I bet a roundover would look amazing too
and I just noticed the person directly below me who suggested the same thing :D
Haha yeah a new people have suggested a round over lol 😆 maybe on the next ones
Wow, those floating shelves are truly mind-blowing! Can't wait to try bending wood like this at home 🌟
Awesome 🤩 video
I was just planning on making some for my sons room!
Thanks 🙏
- It's possible to make router bit experience less load by making partial depth straight kerfs with a table saw just to remove extra material.
- You could use a wet rag to make steaming with an iron more efficient.
- A single wrap of glass fiber cloth with epoxy on the outside can make it much stronger.
Dude! Awesome job. Thanks for the info!
Glad it was helpful!
Great technique and fantastic result! Thanks for sharing. Genius to use the iron steam feature, never thought about that before. Will be trying this technique as soon as my bit arrives. Awesome Job!!
I love it. I have a huge passion for woodworking and it’s not too often I come across a new trick I didn’t already know. But this is genius. Idk why I never thought about using a cone shaped router bit for Kerf cutting wood, it’s such a genius idea!
It opens up a few new ideas
Great video! I enjoyed the technique.
Thank You! Glad you enjoyed it!
Good job man. I am very impressed. I'm going to pass this on to some people I used to work for when I was doing staircases sometimes they would put a bullnose Step at the very bottom of the staircase and would have to bend a solid piece of pine or Oak depending on the material of the riser. Thanks for sharing your project I think I'm going to make one of those shelves as well they lookfantastic very sharp but what about if you use a scarf joint instead of a butt joint. Just a suggestion. Keep up the good work man God bless
I had the same idea but do scarf joints need to be put together by sliding them horizontally? I actually don't know, I'm sure there's something that would work.
Very fun project! Great idea using a tapered bit 👏🏼
Very cool, I can see this coming in handy in the future!
That’s really impressive, man
Thank you!! I'm so happy with the results
Nice result! I'm wondering what it would look like if you made straight cuts, then inserted a wedge strip into each one before bending. Seems like it would be easier to cut, and you might be able to do some interesting things using a different wood for the wedge.
Brass wedges might be interesting. Perhaps only partial though as you'd want a good bond with the wood and the glue.
Theoretically that would work, but trying to get a perfect wedge (one saw kerf wide at the bottom where a straight kerf is too wide, and tapering up to zero at the top) would be damn near impossible, especially since you'd have to cut the wedges ACROSS the board if you wanted the grain in them to match the bent piece.
I seen a youtuber make wedges out of rainbow ply and insert it into the kerf cuts. It looked good but i think the method in this video is far better. The only drawback to this method is the router bit might snap mid operation and that would be extremely dangerous
Super cool and satisfying to watch. Great work 👍
Great work, from woodworking to the video!
Pro: No gap. Cons: The narrower tapered kerf means a sharper bend that shows up on the outside. You can clearly see the edges produced. A wider gap means the wood will bend naturally and produce a smoother bend.
Cant, you just do a bit of sanding and make it a smooth bend, and not have the visual side cuts? or even better use a bit half that size and make twice as many cuts
@@TMD4343 I would love to see a shelf like this but twice as large. It would fit alot more things better, and be more seamless.
I think the edges produced look nice for this sort of high-modern application but I see what u mean
But because there are no gaps the wood glue creates a strong bond. The piece is effectively solid wood in this case. This should mean you can aggressively sand that outer layer once it’s cured to make it perfectly smooth. That’s something you can’t do if you have gaps because the outer layer is what holds it all together. It’s similar to how they turn bowls.
Why don't we have a set of dedicated kerf router bits with clear instructions on how to get whatever curve we want available to consumers yet? WHY AREN'T WE FUNDING THIS?! Kits like this should have been on the market years ago. It makes too much sense.
There are calculators online and the router bits angle would depend on your spacing and how much of a radius you're wanting.
They actually added a tapered cut to the online calculator now lol
@@JARMade yeah they're super handy.
@@JARMade Well, know that one person will always know that you did it first.
Now I want to give you a Wiki page to make it official.
Pretty cool idea. The shelves look good.
Super nice job, I just tried some merging but with ply and a table saw so I have the obvious gaps. I will give this a go for sure. Thanks. Andy UK
I have a couple questions - please forgive my ignorance:
How deep are you making those cuts? Looks like you leave about 1/16th" of material to bend?
How do you determine the number of cuts? Is it simply a math problem based on the angle (6.2 degrees taper / degrees of arc)? Or was it trial and error?
I think both of those questions may be related - Deeper cuts = More bend?
Other things I'm thinking - cuts wider apart or closer together? How does that change things?
(I guess I SHOULD have paid more attention in Geometry)
All good questions. I’d like to know the answer to them, too.
All good questions,
I left about 1/16 of material left
With 1 cut I was getting about 13°-14° bend so I just had to divided 180 by 13 or 14 to figure out how many cuts to make. I tried both on scrap plywood and found out 13 cuts works for a 180° bend
I did try spacing them @ different measurements and what I found out that if you space them farther and closer together the only thing that will change is how big your bend (curve) is. (ALSO THE BIGGER THE SPACING THE MORE NOTICIABLE THE KERFS ARE ON THE WOOD)
If you space them 1/4" apart you end up with about a 2" bend from top to the bottom of the outside of the wood.
if you space them out 1" apart you end up with about a 10" bend. same thing from the top to the bottom of the outside of the wood
I did record all this and planed on putting it in the video but it didn't make the cut because people lose interest way to fast for stuff like this haha. Let me know if I missed anything
@@JARMade Excellent explanation - thank you!
@@JARMade thanks for the added notes, very helpful.
I would like to see how you figured it out. it may be a time-consuming video, but important information in doing a project of this type
Those are quite nice. Ill have to keep this in mind next time im thinking about some shelves.
Got a good chuckle after you gave very specific instructions on the first bit and then proceeded to throw it in the trash. Your work looks great also. Very clean and neat.
Thank you! Haha I had to make a good situation out of that mistake lol 😆
Help support the channel:
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Thank you!
Very nice. How thick is the wood and how deep are the kerf cuts?
Boards are 3/4" and left about 1/16th at the bottom of the cut
@@JARMade Thanks for the extra detail. I'm going to give a try
Of course! I spend a bunch of time figuring stuff out haha so I might as well share it!
The split at the ends of the walnut board could have been a good place for a long skarf also.
Check out the NEW Merch that just dropped!
jarmade.myspreadshop.com/
Ammonia helps for making wood grain flex without breaking the grain structure
I learned about kerfing and steaming and ammonias affect while apprenticing lutherie at JP Guitar in Puyallup Wa, like a decade ago. Just to throw my experience into perspective.
I'm surprised you didn't use a handheld clothes steamer
@@Kam1kaz3dreamer
Hello from Spanaway Washington
Did you determine the required taper using a particular formula or trial and error? If there is a formula which determines the required taper based on the board thickness and the dimensions of the curve what is it? Thanks.
Such an innovative way to make floating shelves!👏 Love the idea of bending wood for a jaw-dropping result. Can't wait to try it out myself!
so simple and yet no one does it LOL awesome dude.
Nice work on this one! Lots of views incoming
Thanks Jon!
This turned out really great. Nice job!
Thank you
Thank you! I've been thinking this should be experimented with for years and found nothing. One potential addition to make it safer, especially on deeper cuts, would be to use a different router bit or a table saw/miter saw/track saw set at the correct angle and cut twice to hog out most of the kerf, then the little carving bit to just finish off the very bottom for that nice sharp point to the kerf.
you caught me off guard several times and i love it lol! great content and nice idea!
Looks good, Jar. I like the mini router idea for the kerf.
I love this technique. The router bit with the taper and the defined flat point at the end is fantastic.
It is a very nice craft to make a sound bar out of it. beautiful and well done
I’ve seen lots of different techniques and the best techniques include that router bit. I got a cat and im making cat shelves for her with this technique. Thanks for sharing.
That looks amazing!! Great idea to use a tapered bit in a router for this. Definitely want to give it a try
fantastic, the Office cameo was tops, thanks for posting.
You’re a god damn wizard Harry!
I'm about to put up a shelving system with fourteen curved 90° bends, and I'd been apprehensive about using a kerf because of the gaps. This bit is making me reconsider the option.
I think the subtle lines that the router bit add make it look better than if it was milled from one continuous piece
Great work, this is amazing!
Another masterpiece. Great work!!! This came out awesome.
Thank you !
Awesome job Jesus! Everything turned out looking awesome
Thank you Nelson!
Great idea, looking awesome!
Wow, looks amazing. 10/10
Beautiful. Looks great 👍
Simply spectacular! Seriously gorgeous!
Thank you
This is impressive. I can’t believe you made this happen
First time viewer; I really like that you share your mistakes.
Thanks for sharing this.
No disagreement here! Those are amazing
Got me with the office meme
Great video, very detailed anf entertaining
Definitely going to make something with this method
I agree, those floating shelves are awesome
That’s pretty awesome! Your first bending video was good, but I like this concept for getting nice clean bends!
Glad you like them! i got a few more bending wood video ideas lol
@@JARMade Maybe “tie” wood in a knot??? I bet you could do it…
@@mcmathwoodworks would be a good challenge
Why have I not seen this channel before!
Ayyy finally found the comment from the video haha 😄
That is so cool... makes me want to pick up that bit and give it a try.
Just be careful lol. but if you do tag me in it, i would love to see what you come up with
Looks far better than the more common way! Well done!
Thank you!
Beautiful work!!!
this is really cool, really!!! I thought you were an avatar who could do wood bending.
Maybe I am 🤫
Two words...frikkin' awesome!
Using the router for things it's not made to be used? Yup, I'll try this one for sure! 😊😊Great work! Very enjoyable video!
Looks great! I would have added a similar poplar strip on the walnut as well to make them a pair. It’s on my list to try!!!
Good luck! Tag me on Instagram If you do!
I have made about a hundred mountain dulcimers, which requires careful bending of the instrument sides to fit into a form.
My mentor started me out with soaking the sides in water and ironing while bending. It worked and I did this for over a year on dozens of instruments but I invariably ended up with water stains on the wood. On lighter color hardwoods it could be unsightly.
For over a decade I have been using a bending iron and forms, no water, and I have found that to be highly preferable. You still need to be careful not to burn the wood, but you can skip the whole soaking step and water management and I rarely get cracks.
I will try this out on a floating shelf in the next couple of months, it’s a lovely project. Thank you!
Great look forward to trying it out Ian in the Uk
Absolutely nailed it!!!
Great technique, brilliant to make v-kerfs this way, and yes those are some great looking shelves. I plan to use this on for a detail on a "vintage" cabinet design I've been working on.
You could calculate the number of cuts by dividing 180 (or whatever number of degrees for the angle you are trying to make) by the angle of your router bit - or the reverse, determine the angle of the router bit for the number of kerfs you want. With that 3.6 degree bit you would have to make 20 cuts in order to bend 180°. Alternatively to the router technique, set your saw to the required cut angle and cut from each side to make a v-kerf. It’s trickier and you’d need a rather precise jig to line up the cuts though. I will be trying this.
Good luck! Tag me when you do make something using this !
@@JARMade absolutely!
Beautiful work! I like it!
Been bending wood in every conversation I had, since highschool.
very nice work, thank you for sharing , beautiful wood
They look great
The chamfer was a really nice touch
wow, nobody's going to believe it's all one piece... I didn't! Great Job!!!
Thank you!!
Really cool and look super easy
Very nice project. I will have a go, but much easier to cut the grooves on my CNC!
I'm dying to try this out. Thanks for the video I just subscribed to your channel keep the videos coming!
Tag me on Instagram when you do lol! good luck and welcome! next video should be out in a week
Nice work! Look awesome!