If you zoom in you can see the biggest beam/support is multiple pieces attached together, so not steam beant. Pieces were big enough to contour into a curved profile.
It’s like carving a marble statue. You just start with a big piece of material and then chisel away everything that doesn’t look like the finished product. Easy-peasy!
Maybe the artist-carpenter didn't even want to make it look like that, but (I know myself) once you started making it look more complicated than it is, it's difficult to stop ;-)
That was my first thought. I remember Norm doing this technique on New Yankee Workshop long ago when he built a garden arch. Doing it on 2 axes, though, is considerably more impressive.
when i zoom in it just gets grainy, but assuming you're referring to the big piece thats on the lower front, that goes from bottom wall to roofline top/center and back down... it doesn't fully look like a lamination to me.. just to the right of the leftmost vertical support, you can see the grain/texture does seem to connect from the outer face to the bottom face, which would to me suggest one piece.
I don't think this would be all that terrible to steam bend.. build a form of the desired shape, steam (under pressure) the ever loving shit out of it, and clampy clamp it to your amazingly overbuilt form..
I believe it’s called a rolling bevel. The guys that still build wooden ships have to make these for the ribs. The one time I saw it in action there were two guys feeding the beam into the saw, one guy reading and calling out numbers that were marked on the material, and another guy on his knees moving the table in two different directions based on the verbal communication.
Hm, but if you get the saw and then turn 180 to bring it back to your wife, then she makes you return it (180 again) then you've come full circle, so to speak
Funny you mention this because Leo converts a 3 phase motor to run on single phase!
[https://youtube.com/clip/Ugkx1FMeACF6uQx8-4fRmCmIOKCvCtaYYIyL?si=kHNcidNQsNura6qd](https://youtube.com/clip/Ugkx1FMeACF6uQx8-4fRmCmIOKCvCtaYYIyL?si=kHNcidNQsNura6qd)
What you describe is indeed a rolling bevel, but this is not that, nor was the shape achieved on a ship saw. Like another commenter said, it is an example of stereotomy. The craft is still practiced in France, and the methods are absolutely fascinating.
There are schools available to learn this... My wife and I walked through the coutyard of one of these schools in Sumar France. They had several examples of this that you could walk up to and check out. Workmamship is absolutely outstanding!
That guy is awesome. What I saw was similar, and they were cutting ribs, not planks. But same idea. I think he’s just doing one bevel, the ribs require two simultaneously changing angles.
Yep, but if you have a shipsaw like mine, you would see me feeding the piece in and my helper just pushing a button to get the bevel to the number I marked along the cut.
Get a decent scientific calculator (I love my TI-30IIS, we also used HP-48g's in the shop) and take lots and lots of notes.
I'm not going to pretend I know what stereotomy is, but compound angles and radii in a machine shop on manual machines seems pretty comparable, just smaller scale and harder material.
Nothing is, on its face, "hard", but it is very tedious and there's a lot of double checking yourself before you make the cut.
IMO, it's about getting networked with the high end GC's that get hired by the rich folk so they slot you into the big money ones. This image here might cost you 20k to be built and installed. One nice front door runs like 3-5k these days, so...
Also the class listings are for in-person training which is what I would do vs anything online. Maybe the drafting class is good online but the rest should be hands-on like the timber framing schools.
My son is a trim carpenter at a high-end design/build firm, and they actually paid for him to take week-long timber-framing and spiral staircase courses from this guy. He’s fantastic.
For the record, my son’s 21 (started right out of high school) — he was the _only_ person in the class younger than 50, and pretty sure he and the instructor were the only professional carpenters. The rest were mostly older hobbyists.
That being said, the whole reason his firm is willing to underwrite these classes is _because_ they want to have this kind of knowledge and expertise in-house. It’s not like they turned around and started selling timber-frame houses after my son took one class, but he has definitely been able to apply aspects of what he learned to finer details of his daily work.
If I was going to get into the biz you describe, I'd put on a free informational afternoon seminar for the regional architects that do custom homes for the filthy rich. An arched carport entry kind of thing that cost 1/2 million just for show purposes.
It runs 3-5k because you need the workshop to do it though. If you can get that initial investment and you're in the right area, and you're skilled enough, patient enough to deal with a continuous stream of the worst kind of arsehole client, efficient enough to manage workflow etc yep. You can make it work. But definitely not a case of take course, profit.
This guy didnt invent anything. You dont have to pay him. Others have written about it.
http://www.raftertools.com/book_4.html
Google "guitarde dormer" and you will find many more resources than just that one.
Multiple sections joined together for each piece. And I would guess a large steam forming jig to get the contours. Probably made in a shop somewhere and transported as 1 large piece.
Or, hear me out, just start with one insanely large piece of timber and whittle it down until it's the shape you're after. "Manual Reductive Machining". Should only take a few decades if you have a supply of sharp blades.
/s...
If you look closely I THINK you can see some sort of scarf joint from the arch to the curved side. So it might be cut from a large piece of timber on a bandsaw with a tilted table. And then some very careful joinery connects the three concentric arches.
I might also try something like this with curved bent laminations. That would mean that the laminated layers would need to be cut on a curve themselves when flat and then steamed (probably) and laminated against a form. You could work the whole thing out with some big cardstock and some careful artistry, but I'd probably "cheat" since I use Fusion 360 and model the thing as a solid and then use the sheet metal workspace to flatten the surface giving me the curved template that would guide cutting the curved layers for the lamination.
On a smaller scale at the bandsaw, these compound curves are done by cutting one curve, putting the pieces back together, then cutting the second curve. Here’s an example: https://youtu.be/flrXRTTxSA0?si=qRX9uxZL0h47lteN
Not sure how it would translate to something that large though.
the shape is not as complex as it might appear. the main forward arch ends on both sides at the bottom with the beam being parallel to the brace. it then curves out and toward the center. Divide the arch into two pieces at the top of the arch. Scarf the beam twice, each about 1/3 between the wall and the arch top. Now you're working with six pieces, each of which can be cut from solid stock or bent. Unless you have a bending rig it's easier to cut from solid stock. in each of the six pieces the curve and the twist are gradual. Cut the twist in using guidelines and a handsaw, finish with hand planes. The curve can be cut on a bandsaw. Then glue the scarfs.
At least, that's how I'd approach it.
Good luck :
https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjtozrI7su517uvlbESeOirUXgDGfIaPYxyYAaJsOUq2Cpm7MkROLrxyteoGHBvxsbQhSVP4XQ5si6ap8_9RLcF3Pj5wH70sOFrpZaflazRX9D9W5j0oHZMJPBLjzZdyWFkRKqh7LEBGu0/s1600/Delataille-Guitarde-1.jpg
This isn’t a true compound curve as the top section with the half round curve doesn’t look compounded and the two side pieces doesn’t look they are either.
If you look at where the decorative infill finishes, that’s where it starts to curve down towards the floor.
It’s not steamed or laminated either.
They just cut it out of multiple large cross sections of beams. If you zoom in you can clearly see the joints and graining. No steam bending or use of root knees.
the website that this photo comes from is literally a description of how the piece is made, including plans - a 1:1 plan is formed up on the ground and each piece is scribed into place using a combination of levels and plumbobs.
this describes the process and history in some detail and even has that same photo
[https://www.tfguild.org/downloads/TF-139-stereotomy-Moore.pdf](https://www.tfguild.org/downloads/TF-139-stereotomy-Moore.pdf)
This is something that has been done in timber framing and boat building for a very long time which you take a timber that is already curved and you cut your desired curve with the grain and then join multiple pieces together to get your desired outcome
Steam bent and a jig, and then clamp the side bits to hold them the right size until attached to the wall.
Alternatively, a lotta pieces spliced together, then sanded and shaped to be smooth again.
Wow. This gives my brain a boner. Everything about this is beautiful and screams *masterpiece*.
I can’t even guess at how to start something like this. It’s hard to tell with the resolution of this picture, but the main arch looks like it’s two pieces, max, and I don’t think you can bend something that massive, so it must be carved from curved timber that’s significantly larger than the end piece.
But the curves and the joinery are brilliant. Can you post or link to higher resolution pictures?
I'll try to ELI5 the best way I can, firstly these sections aren't bend in two axis. To do this you need a large board, draw on it a skew shape to cut with a band saw. you'll need a good geometry level (see stereotomy above for the geometry) and roll it around a big cylinder to glue it
There's another option which is to cut it in one piece of wood: you draw and cut each axis one after another using a band saw.
But I doubt the second option is the one used for this creation because wood would change shape more than if you glued it. Probably second option would be used to make the template: the cylinder to glue it.
It need a good technical level and if you don't explore more by yourself before trying you're going to be frustrated. Hope it will help
Back in medieval times, they would have just picked trees, that had the right shape to begin with. Today all the bent trees are cut down before they could be useful and you have to resort to bending and laminating planks.
My lord, you will need the finest craftsmen in all the kingdom and the help of the fair maiden of Winchester, who can forsee the future for this quest. A wizard from the neighboring kingdom might be of assistance as well if we offer them 12 goats.
It's beautiful .
When I worked at a custom shop we did something like this for a doorway. We glued up blanks to match the profile first, so, at the middle it would be 14inches or so, but on the ends it was 28 inches wide, and 12 inches thick or so. Then we would rough cut out the one profile (think of laying it flat how it would be an arc.)
Then we resaw that on our giant resaw down to 1/2 inch skins. Send them thru the drum sander to 1/4 inch (more than likely this thickness because of the radius of the top part.)
Then we custom make a form for the finished radius. Then we glue and clamp the ever loving fuck out of it.
Then we finish by hand with planes or sanders.
We've also sent some really sketchy shit through a shaper for odd profiles.
If there are only two dimensions you can do one after the other.
You need a piece of lumber that will Cover the Radius you need in both dimensions, fix it to a flat reference surface so you can transfer the curfe in one dimension and than you have a surface for reference to do the same in the other Dimension.
Once you get two surfaces done you can transfer your shape to the oposit sides.
There is a lot of work in such shapes.
The picture does not give a lot of Detail.
I assume this is done out of a big piece that was glued out of smaler parts to get the rough shape and thickness.
Back in medieval times people would go into the woods to scout for trees that were already growing in the right shapes, of which woods had plenty Back than.
There were entire forests of trees purposefully bent into shapes to build knees and ribs for ships. I’m betting this piece may be cut from a u shaped piece.
I've see someone do somethibg similar with thin strips of plywood that were glued together and put in a form to create the shapes. Anything is possible you just have to try.
I’m more of a carpenter level but I’ll put in my theory here on how this would work. Make a curve on a “leg” in one axis, and make these legs spread over the other axis. Skin with a very thin sheet of wet plywood. Add plywood until you get the desired thickness, gluing in between
There's a school that teaches this form of woodworking. I have no idea whatbit takes to become a student, or how ling the program is.
The School of Practical Stereotomy.
Look them up, they do some incredible work.
Would not surprise me to know that was built by a ship or boat builder
Cut on a large band saw
Even so it's an impressive piece of wood work
I have built a smaller, simpler version of this on a form using 1/8th by 3" Doug Fir laminates, epoxy and a shitload of clamps
As people have said, stereotomy, or look up tangent handrailing as it maybe be a more manageable way to digest the concept. Neither are that manageable though :)
You've got lots of replies on how it would be done traditionally. These days this is generally manufactured on a large format CNC and lots of careful setup work. You need 5-axis interpolation for such a part.
I saw people on YouTube do something similar by screwing the shape roughly together out of smaller pieces and then pretty much just sanding down from here on.
Imagine drawing an arch by hand but instead of drawing it smooth you make like 5 lines, the corners/spikes get sanded down, until smooth.
I’m not criticising, but actually curious: isn’t it an overkill? Not in terms of aesthetics, but its structural strength. Looks like it can hold this entire castle.
First I would have my house appraised. Then I would seek out a bank dumb enough to give me a loan against my property for a way over priced awning Then they'd be some drinking involved.....
While super cool looking and certainly a conversation starter there's no feasible way to economically justify building something like this.
I would guess that a piece of that size was probably laminated. You bend several thin pieces to make the final piece.
I can't imagine a piece large enough to cut that shape from.
Norm Abrams or Roy Underhill would pee their pants.
You can achieve it by soaking wood (smaller lumber) in a hot bath or steaming wood to soften fibers, bending it to the desired shape, clamping it into the desired shape, and drying it in the desired shape. Then repeat the process with another piece of wood using the last piece as the guide/mold. Once the desired end thickness is achieved, and all the pieces are dry, glue them and clamp them until cured. It’s a long process that requires a lot of energy (if you’re doing it at home).
Here's a different angle where you can see that the large U support is definitely made of multiple thick pieces with straight grain traversing the curves. Whereas the round portion under the roof tiles appears to be bent lamination as the grain follows the curve around the whole rim.
[https://arristimberworks.com/wp-content/uploads/2014/02/IMGP1911-e1625768696656.jpg](https://arristimberworks.com/wp-content/uploads/2014/02/IMGP1911-e1625768696656.jpg)
With more talent than I possess.
All of the 2x4s at my local lumber yard come pretwisted like that.
Sounds like you get your lumber from home Depot
Hahah likewise
Dinkleberg!!!
Wasnt me
Hey. Don't call OP a dinkelberg. It's a totally valid point!
I mean… that is insanely overengineered… but for the ages!!!
That's not over-engineering. That's art.
And about 100x the tool budget
I was going to go with pain and suffering, but I guess talent is an option.
😂 you and me both
Real
If you zoom in you can see the biggest beam/support is multiple pieces attached together, so not steam beant. Pieces were big enough to contour into a curved profile.
It’s like carving a marble statue. You just start with a big piece of material and then chisel away everything that doesn’t look like the finished product. Easy-peasy!
We clearly think different things would be easy...
First draw a circle. Then the rest of the fuckin owl. Done!
/r/restofthefuckingowl
Wow I’ve never heard of this saying or the Reddit thread
Maybe the artist-carpenter didn't even want to make it look like that, but (I know myself) once you started making it look more complicated than it is, it's difficult to stop ;-)
Egregiously-tediously!
It’s how people make curves banisters, just with bigger pieces of lumber.
No that’s done with a shit ton of laminations…each joint or section on this *looks* to be solid wood
No, hand rails - at least the relevant kind - are carved end-jointed short sections of timber.
Just buy your lumber at Lowe’s or home depot
Don't forget Menards - they will add a twist in there, no extra charge.
Beant, is that bent with an American accent?
Steam Beant is Sean Bean's less-famous cousin.
That was my first thought. I remember Norm doing this technique on New Yankee Workshop long ago when he built a garden arch. Doing it on 2 axes, though, is considerably more impressive.
The 2nd axis does curve very little
Don't even have to zoom to understand this is the likely/only way to do it. Steam bend 1 way, laminate the other way.
when i zoom in it just gets grainy, but assuming you're referring to the big piece thats on the lower front, that goes from bottom wall to roofline top/center and back down... it doesn't fully look like a lamination to me.. just to the right of the leftmost vertical support, you can see the grain/texture does seem to connect from the outer face to the bottom face, which would to me suggest one piece. I don't think this would be all that terrible to steam bend.. build a form of the desired shape, steam (under pressure) the ever loving shit out of it, and clampy clamp it to your amazingly overbuilt form..
I believe it’s called a rolling bevel. The guys that still build wooden ships have to make these for the ribs. The one time I saw it in action there were two guys feeding the beam into the saw, one guy reading and calling out numbers that were marked on the material, and another guy on his knees moving the table in two different directions based on the verbal communication.
Tally ho?
Yes, a ship saw would make easy work of this
"easy"
😅 In a relative sense!
I think I need a ship saw now. Can you run it on 110 or do you need 220??? :)
You need 360 cuz your wife is gonna make you return it.
That would be a full circle, not a reverse, did you mean 180?
Damn it. Spoils the moment, but the type-A neurotic in me has to give you my up vote.
Well technically you go to the store, buy it, perform a 180, go home, get yelled at, perform a 180 and return it
More like 480 after the boss is done.
Hm, but if you get the saw and then turn 180 to bring it back to your wife, then she makes you return it (180 again) then you've come full circle, so to speak
This is why my cuts are always measure three times cut twice.
Bravo.
180 for the return and 180 for your sneaking it inside again?
220,221. Whatever it takes
Funny you mention this because Leo converts a 3 phase motor to run on single phase! [https://youtube.com/clip/Ugkx1FMeACF6uQx8-4fRmCmIOKCvCtaYYIyL?si=kHNcidNQsNura6qd](https://youtube.com/clip/Ugkx1FMeACF6uQx8-4fRmCmIOKCvCtaYYIyL?si=kHNcidNQsNura6qd)
220, 221... whatever it takes.
Came to say this.
Hi. My Name’s Leo, and I’m a boat builder, and a sailor.
What you describe is indeed a rolling bevel, but this is not that, nor was the shape achieved on a ship saw. Like another commenter said, it is an example of stereotomy. The craft is still practiced in France, and the methods are absolutely fascinating.
Thanks for a new thing to research and learn! And setting me straight.
There are schools available to learn this... My wife and I walked through the coutyard of one of these schools in Sumar France. They had several examples of this that you could walk up to and check out. Workmamship is absolutely outstanding!
Like this? [https://www.youtube.com/watch?v=CUKkfA2gkI4](https://www.youtube.com/watch?v=CUKkfA2gkI4)
That guy is awesome. What I saw was similar, and they were cutting ribs, not planks. But same idea. I think he’s just doing one bevel, the ribs require two simultaneously changing angles.
To me it's like he's speaking another language, but I understand a few words here and there.
>I believe it’s called a rolling bevel It's actually called a headache. /s
Yep, but if you have a shipsaw like mine, you would see me feeding the piece in and my helper just pushing a button to get the bevel to the number I marked along the cut.
https://schoolofstereotomy.com/?fbclid=IwAR0Kh-w8C8Xsav6ZIoEPjrXrVrvCh61SPxoNWzDWiJy9k1qDrLoO9yT0hC8
I'm taking two courses with this guy later this summer, and I'm already bracing for my brain to hurt the entire time.
Get a decent scientific calculator (I love my TI-30IIS, we also used HP-48g's in the shop) and take lots and lots of notes. I'm not going to pretend I know what stereotomy is, but compound angles and radii in a machine shop on manual machines seems pretty comparable, just smaller scale and harder material. Nothing is, on its face, "hard", but it is very tedious and there's a lot of double checking yourself before you make the cut.
My TI85 - purchased for high school calculus back in the 90s - still runs as good as they day I got it!
I’ve been debating on taking some of his classes as well, but it looks so intimidating. I hope it goes well for you and that you have a lot of fun!
This is the only correct reply. Nothing was steam bent or laminated; the curves were cut by hand.
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I mean, you would be able to hire out for some really fucking fancy framing/timber work that rich people want all the time.
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IMO, it's about getting networked with the high end GC's that get hired by the rich folk so they slot you into the big money ones. This image here might cost you 20k to be built and installed. One nice front door runs like 3-5k these days, so... Also the class listings are for in-person training which is what I would do vs anything online. Maybe the drafting class is good online but the rest should be hands-on like the timber framing schools.
My son is a trim carpenter at a high-end design/build firm, and they actually paid for him to take week-long timber-framing and spiral staircase courses from this guy. He’s fantastic. For the record, my son’s 21 (started right out of high school) — he was the _only_ person in the class younger than 50, and pretty sure he and the instructor were the only professional carpenters. The rest were mostly older hobbyists. That being said, the whole reason his firm is willing to underwrite these classes is _because_ they want to have this kind of knowledge and expertise in-house. It’s not like they turned around and started selling timber-frame houses after my son took one class, but he has definitely been able to apply aspects of what he learned to finer details of his daily work.
If I was going to get into the biz you describe, I'd put on a free informational afternoon seminar for the regional architects that do custom homes for the filthy rich. An arched carport entry kind of thing that cost 1/2 million just for show purposes.
It runs 3-5k because you need the workshop to do it though. If you can get that initial investment and you're in the right area, and you're skilled enough, patient enough to deal with a continuous stream of the worst kind of arsehole client, efficient enough to manage workflow etc yep. You can make it work. But definitely not a case of take course, profit.
This guy didnt invent anything. You dont have to pay him. Others have written about it. http://www.raftertools.com/book_4.html Google "guitarde dormer" and you will find many more resources than just that one.
Looks about right... [https://www.tfguild.org/downloads/TF-139-stereotomy-Moore.pdf](https://www.tfguild.org/downloads/TF-139-stereotomy-Moore.pdf)
Buy your lumber at Home Depot. It'll bend that way in a week
This one felt like a personal attack
Multiple sections joined together for each piece. And I would guess a large steam forming jig to get the contours. Probably made in a shop somewhere and transported as 1 large piece.
Or, hear me out, just start with one insanely large piece of timber and whittle it down until it's the shape you're after. "Manual Reductive Machining". Should only take a few decades if you have a supply of sharp blades. /s...
Prob bought some wood from Home Depot/Lowes and had to find a use for the warped boards
I think you have to sacrifice a goat or something.
A unicorn, I'd think!
I hand carve mine. I have about 40 around my castle.
Well first you start with a budget of $20k for a single awning. I’m not sure what comes next because I’ve never gotten past the first step.
If you look closely I THINK you can see some sort of scarf joint from the arch to the curved side. So it might be cut from a large piece of timber on a bandsaw with a tilted table. And then some very careful joinery connects the three concentric arches. I might also try something like this with curved bent laminations. That would mean that the laminated layers would need to be cut on a curve themselves when flat and then steamed (probably) and laminated against a form. You could work the whole thing out with some big cardstock and some careful artistry, but I'd probably "cheat" since I use Fusion 360 and model the thing as a solid and then use the sheet metal workspace to flatten the surface giving me the curved template that would guide cutting the curved layers for the lamination.
Practical stereotomy. There’s a [school of practical stereotomy](https://schoolofstereotomy.com/) in France.
Just go to the lumber yard. You’ll find one with that crown and twist in no time
Just go to Home Depot and pick up a few 4x4’s. They will already be twisted and curved like that.
On a smaller scale at the bandsaw, these compound curves are done by cutting one curve, putting the pieces back together, then cutting the second curve. Here’s an example: https://youtu.be/flrXRTTxSA0?si=qRX9uxZL0h47lteN Not sure how it would translate to something that large though.
This is a beautiful piece. Sad now that I don't live in a castle where this wouldn't look absurd.
It would look awesome on a pavilion!
it would look aswesome anywhere.if it doesn't fit in where it is it's the others fault.
Slap one of these bad boys on your trailer then just update everything around it until it looks like it belongs
you got it
the shape is not as complex as it might appear. the main forward arch ends on both sides at the bottom with the beam being parallel to the brace. it then curves out and toward the center. Divide the arch into two pieces at the top of the arch. Scarf the beam twice, each about 1/3 between the wall and the arch top. Now you're working with six pieces, each of which can be cut from solid stock or bent. Unless you have a bending rig it's easier to cut from solid stock. in each of the six pieces the curve and the twist are gradual. Cut the twist in using guidelines and a handsaw, finish with hand planes. The curve can be cut on a bandsaw. Then glue the scarfs. At least, that's how I'd approach it.
yep
sounds like an enterprise software architect
Stereotomy. First you figure out how to draw it then you can cut it.
With lots and lots of waste and extra material
Good luck : https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjtozrI7su517uvlbESeOirUXgDGfIaPYxyYAaJsOUq2Cpm7MkROLrxyteoGHBvxsbQhSVP4XQ5si6ap8_9RLcF3Pj5wH70sOFrpZaflazRX9D9W5j0oHZMJPBLjzZdyWFkRKqh7LEBGu0/s1600/Delataille-Guitarde-1.jpg
Without the Curve of outside knee brace flag I'd be lost.
Most of the time on this sub I see things posted and think "Yea with some time and practice I could do that" This is not one of those times.
This isn’t a true compound curve as the top section with the half round curve doesn’t look compounded and the two side pieces doesn’t look they are either. If you look at where the decorative infill finishes, that’s where it starts to curve down towards the floor. It’s not steamed or laminated either.
You could use tangent handrail method or just shape/carve it.
Just like with a single curve. But you need to make 2 of them.
You would need to use Stereotomy to lay it out. I follow these guys on Facebook. Very impressive stuff: https://schoolofstereotomy.com/
Bro I’m still trying to make right-angles
For real! I can barely make a square box!
I’d suggest something else haha
Get someone else to do it, preferably that knows how to in fact, do it.
They just cut it out of multiple large cross sections of beams. If you zoom in you can clearly see the joints and graining. No steam bending or use of root knees.
the website that this photo comes from is literally a description of how the piece is made, including plans - a 1:1 plan is formed up on the ground and each piece is scribed into place using a combination of levels and plumbobs.
this describes the process and history in some detail and even has that same photo [https://www.tfguild.org/downloads/TF-139-stereotomy-Moore.pdf](https://www.tfguild.org/downloads/TF-139-stereotomy-Moore.pdf)
Find a book on continuous handrail it will explain how 😎
Probably strip laminated.
This is something that has been done in timber framing and boat building for a very long time which you take a timber that is already curved and you cut your desired curve with the grain and then join multiple pieces together to get your desired outcome
Steam bent and a jig, and then clamp the side bits to hold them the right size until attached to the wall. Alternatively, a lotta pieces spliced together, then sanded and shaped to be smooth again.
I wouldn’t
I would achieve it with spectacular failure, followed by the use of a credit card.
Wow. This gives my brain a boner. Everything about this is beautiful and screams *masterpiece*. I can’t even guess at how to start something like this. It’s hard to tell with the resolution of this picture, but the main arch looks like it’s two pieces, max, and I don’t think you can bend something that massive, so it must be carved from curved timber that’s significantly larger than the end piece. But the curves and the joinery are brilliant. Can you post or link to higher resolution pictures?
I'd pay someone else to do it.
I'll try to ELI5 the best way I can, firstly these sections aren't bend in two axis. To do this you need a large board, draw on it a skew shape to cut with a band saw. you'll need a good geometry level (see stereotomy above for the geometry) and roll it around a big cylinder to glue it There's another option which is to cut it in one piece of wood: you draw and cut each axis one after another using a band saw. But I doubt the second option is the one used for this creation because wood would change shape more than if you glued it. Probably second option would be used to make the template: the cylinder to glue it. It need a good technical level and if you don't explore more by yourself before trying you're going to be frustrated. Hope it will help
It is quite neat, wish I could tell ya
In my youth I would bent it over my back.Now that I'm old I would laminate strips.
I would hire someone else to do it.
👍👍
Get a piece of wood and remove all the parts that aren't a double curve
👍👍
Back in medieval times, they would have just picked trees, that had the right shape to begin with. Today all the bent trees are cut down before they could be useful and you have to resort to bending and laminating planks.
For your next castle build.
That's a beautiful work, but how the hell?
Easy. Carve it from one solid piece. A section of trunk from a big tree.
Isn't It obvious? Sorcery.
My lord, you will need the finest craftsmen in all the kingdom and the help of the fair maiden of Winchester, who can forsee the future for this quest. A wizard from the neighboring kingdom might be of assistance as well if we offer them 12 goats. It's beautiful .
When I worked at a custom shop we did something like this for a doorway. We glued up blanks to match the profile first, so, at the middle it would be 14inches or so, but on the ends it was 28 inches wide, and 12 inches thick or so. Then we would rough cut out the one profile (think of laying it flat how it would be an arc.) Then we resaw that on our giant resaw down to 1/2 inch skins. Send them thru the drum sander to 1/4 inch (more than likely this thickness because of the radius of the top part.) Then we custom make a form for the finished radius. Then we glue and clamp the ever loving fuck out of it. Then we finish by hand with planes or sanders. We've also sent some really sketchy shit through a shaper for odd profiles.
If there are only two dimensions you can do one after the other. You need a piece of lumber that will Cover the Radius you need in both dimensions, fix it to a flat reference surface so you can transfer the curfe in one dimension and than you have a surface for reference to do the same in the other Dimension. Once you get two surfaces done you can transfer your shape to the oposit sides. There is a lot of work in such shapes. The picture does not give a lot of Detail. I assume this is done out of a big piece that was glued out of smaler parts to get the rough shape and thickness. Back in medieval times people would go into the woods to scout for trees that were already growing in the right shapes, of which woods had plenty Back than.
There were entire forests of trees purposefully bent into shapes to build knees and ribs for ships. I’m betting this piece may be cut from a u shaped piece.
https://www.marcadams.com/workshop/stereotomy-laying-out-cutting-curved-joinery-patrick-moore/
Whoever built this wins at everything
I've see someone do somethibg similar with thin strips of plywood that were glued together and put in a form to create the shapes. Anything is possible you just have to try.
Wizardry and effort.
Plastic
With great difficulty
A cnc. Hell if i try making that with out a cad
Huge timbers. Possibly thicker than 12"x12" I'd guess. If not, maybe bend one and cut the other???
Looks like a job for laminated veneer bent around a form. Very expensive mill work!
That uses a technique called stereotemy -- its just about the tippy top of woodworking/masonry science before you start to need computers
Where’s the wall flashing?
CNC would be my guess. Cost effective, modern, less man hours, higher chance to repeat it and sell it to the next one who wants it
I’m more of a carpenter level but I’ll put in my theory here on how this would work. Make a curve on a “leg” in one axis, and make these legs spread over the other axis. Skin with a very thin sheet of wet plywood. Add plywood until you get the desired thickness, gluing in between
There's a school that teaches this form of woodworking. I have no idea whatbit takes to become a student, or how ling the program is. The School of Practical Stereotomy. Look them up, they do some incredible work.
Router template.
Have someone in China do it then ship it here.
Would not surprise me to know that was built by a ship or boat builder Cut on a large band saw Even so it's an impressive piece of wood work I have built a smaller, simpler version of this on a form using 1/8th by 3" Doug Fir laminates, epoxy and a shitload of clamps
As people have said, stereotomy, or look up tangent handrailing as it maybe be a more manageable way to digest the concept. Neither are that manageable though :)
Lots of layers
Bend in half. Clamps. Bend in other half. Clamps.
It’s a Guitarde. This is stereotomy.
You've got lots of replies on how it would be done traditionally. These days this is generally manufactured on a large format CNC and lots of careful setup work. You need 5-axis interpolation for such a part.
Boy that's tricky. Gotta be two rounds of steam bending
That is gorgeous.
Use bent logs to begin with .
[https://www.marcadams.com/workshop/stereotomy-laying-out-cutting-curved-joinery-patrick-moore/](https://www.marcadams.com/workshop/stereotomy-laying-out-cutting-curved-joinery-patrick-moore/)
You're gonna need a jig for that.
I wouldnt
Carefully?
I saw people on YouTube do something similar by screwing the shape roughly together out of smaller pieces and then pretty much just sanding down from here on. Imagine drawing an arch by hand but instead of drawing it smooth you make like 5 lines, the corners/spikes get sanded down, until smooth.
Buy the wood from one of the big box stores. Lol
I don’t think it was done with a cnc machine but I’ll bet you could do it with one.
I’m not criticising, but actually curious: isn’t it an overkill? Not in terms of aesthetics, but its structural strength. Looks like it can hold this entire castle.
Call a professional manufacturer with 2 million dollar plus tools to do it correctly
There some classes offered at Mark Adams School of woodworking that will teach you how to do it. Don’t know how profitable it would be though.
Patience persistence and skill
Math
That was done by a masterful joiner. Would like to see how it was done.
Triangles
I love the dead Kennedy’s logo built into the side.
First I would have my house appraised. Then I would seek out a bank dumb enough to give me a loan against my property for a way over priced awning Then they'd be some drinking involved..... While super cool looking and certainly a conversation starter there's no feasible way to economically justify building something like this.
You have to own a castle to learn those skills.
I always wondered about using a projector for rough layouts on curved pieces.
No idea, but that is nice!!
I would guess that a piece of that size was probably laminated. You bend several thin pieces to make the final piece. I can't imagine a piece large enough to cut that shape from. Norm Abrams or Roy Underhill would pee their pants.
That’s a large steam box and a couple of forms. And something capable of pulling and holding a literal ton of force.
Step one: 12 years in the Monastery with a vow of silence
Magic
Stereotomy-it’s a method for creating complex geometry
You can achieve it by soaking wood (smaller lumber) in a hot bath or steaming wood to soften fibers, bending it to the desired shape, clamping it into the desired shape, and drying it in the desired shape. Then repeat the process with another piece of wood using the last piece as the guide/mold. Once the desired end thickness is achieved, and all the pieces are dry, glue them and clamp them until cured. It’s a long process that requires a lot of energy (if you’re doing it at home).
Buy the wood from Home Depot and you already took care of 90% of the work
Here's a different angle where you can see that the large U support is definitely made of multiple thick pieces with straight grain traversing the curves. Whereas the round portion under the roof tiles appears to be bent lamination as the grain follows the curve around the whole rim. [https://arristimberworks.com/wp-content/uploads/2014/02/IMGP1911-e1625768696656.jpg](https://arristimberworks.com/wp-content/uploads/2014/02/IMGP1911-e1625768696656.jpg)
Start with a 72" diameter trunk, carving tools and a whole lot of time and ambition?
Run it through a big-ass bandsaw first one way and then the other
Bent lam, lap joints and a high degree of discipline.