How to Bend Plywood -- A simple technique to make bent plywood through "kerf cutting".
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- Опубліковано 28 вер 2024
- I needed bendable plywood for an RV project, so I used this "kerfing" technique to make it. (Over the years I've done basically the same thing with sheetrock...). Figured I'd catch it on film in case any of you all were wondering how-to.
I mention "test cuts" as being important, but I don't really show a lot of them in the video. Rest assured that I spent about twenty minutes running test pieces to dial in 1) blade height and 2) kerf spacing. The video leaves out that boring process, but it's an essential one.
Here I'm using a Sawstop but really any tablesaw will do--or even a cross cut saw. The plywood I'm using happens to be baltic birch, but this technique would work with regular big-box plywood too.
This video made my day immensely easier. I thought I was going to have to stop and readjust my table saw each time but your two lines made me almost scream with excitement! Thank you!
Glad I could help. Sometimes we all get a little too focused on precision, and this "two line" method is a good example of when an imprecise method just works a lot better in the real world.
Best walkthrough on kerfing I have found yet. Thanks
Thanks!
I don't know a thing about woodworking.
But, this is awesome. I wish you'd have shown photo of end result.
It fascinates me.
Great tip & trick! I just learned something new today! 👍🤙
Great video, thanks so much!
Glad it was helpful!
캣타워 cat Tower 만들때 써봐야겠어요..Thanks!!
I'm glad this came in handy for your project!
Kerf ports here we goo
Thanks!
Great tip on spacing the cuts. I'm glad I saw this!
Hi. What kind of plywood to use? My one braked down just after 10 degrees.
He says it's Baltic birch!
Lots of different plywoods will work, but you want something that has as many solid layers as possible. Baltic birch is an excellent choice, but you can bend other types of plywood too.
Dad wants to bend some plywood
Is it play wood or timber
Plywood.
You are a boss this was so cool
Helped a whole heap..tyvm
Great technique, I will try this! Nice video, but take care of your framing sometimes :)
I hear you on the framing. Meant to go back and reshoot but ran out of time! (Autofocus issues on this one too!)
@@JustaJourneyman Dude tell me about it - I hate refilming things because of some error - mostly it just goes into my videos as well X) about the autofocus - when its a tripod shot switch to manual focus and lock it in on what you're doing - it wont hunt then.
Thats a damn good idea using those marks.
I'm a big fan of writing directly on things. With Sharpie just a little alcohol (or hand sanitizer) and it comes right off.
Old person, but new to woodworking here. I don’t have (and don’t want) a table saw, so yes, it’s probably dumb to use a circular saw and fence, but that’s what I’m going to try. I need about a 28” wide piece...don’t know how long yet. This is for an outdoor project. Pretending I get the cuts done acceptably, do I need to fill in the kerf cuts with something, before painting, for weather protection? The cut side will not be directly exposed to rain, but temps in Texas summer, humidity, etc. Thanks for your input....I can’t hear the laughing or see eyes rolling, so, it’s okay! I always do things the hard way.😜
@David Thiel Thank you so much for your advice! I didn't know there was a different type of plywood! I just got regular plywood and lots of exterior paint, hoping that would hold in the weather, but was going to seal all the exposed edges with some sort of sealer. I will definitely look into the marine varnish. I had looked at some YT videos on what they use on boats and all I came away with was... "do NOT want to fiberglass this thing!" LOL And YES, I do need "good luck". It won't look like I picture it in my head, but it will be sturdy and that's the first order of business in this particular project!
Thanks again!
So... how'd it work out?
better to laminate than curf cut, you end up with ghost lines in time,
@David Thiel even biskets will show..they always do.
The only true way is to make jigs and laminate .same as wood glue.it will show a line in time.most woodworkers never see the product after they are gone.
@David Thiel I understand but if you want a better and stronger ger build stay away from curf .historically it was solid build up or laminate.that is the true method curf is lazy
Agreed. This works for most folks, but if you want to do it right, bent lamination is the way to go.
@@keithmarlowe5569 If you're going to bother laminating, then I wouldn't bother kerfing. That would just be double work. Laminating is "better" in many ways, but kerf cutting is quite acceptable and really works well in any number of contexts.
Great vid
Thanks!
Get a measuring tape to measure the curve 😬
Agreed. I had it in my head that I needed a mathematician, but in fact I needed a seamstress or tailor!
Would a thin kerf blade make things easier?
Not necessarily easier (or more difficult) but a little different.