Came across these wooden nails for use with nail guns!
https://www.beck-fastening.com/en/products/fasteners/lignoloc-wooden-nails~pc2387
Very exciting!
Supposedly the nails are filled with a lignin based resin, and when shot into the wood they create a bond with the lignin in the wood that is compareable to a form of welding.
Her is an example where they end up lifting a car with 4 nails in 4 places so a total of 16 wooden nails:
Noticed that it seems this product is 3 years old but I've never heard of it, looks awesome!
https://www.beck-fastening.com/en/products/fasteners/lignoloc-wooden-nails~pc2387
Very exciting!
Supposedly the nails are filled with a lignin based resin, and when shot into the wood they create a bond with the lignin in the wood that is compareable to a form of welding.
Her is an example where they end up lifting a car with 4 nails in 4 places so a total of 16 wooden nails:
Noticed that it seems this product is 3 years old but I've never heard of it, looks awesome!
No time to read right now, but very interested. Are they saying you can fire these in with an air gun and no pilot hole? Or are they hand bombed?
Sounds on the face of it like a great idea, but once the inevitable accidents start to happen the wisdom of X-ray invisible nails that can splnter apart in the body will be questioned by the poor medical professionals trying to remove them and prevent gangrene...
Someone will come up with a reply to all this, me on the other hand: ... Oh, please spear me...
@Cal Weldon Yes indeed!
Yeah various metals are already scarce items with one large buyer. This seems a nice solution but what when one needs to disassemble stuff and the connection is like a (internally) welded one?
@Mark Tillotson the "please spear me" bit was of course what the doctor will be thinking in the scenario you described.
@jean-paul I was thinking it would be great for loudspeakers, no more bracing for days, mockup with glue and nail it all in place. Like welded - yes, very much so. Look at the car lifting video in the first post.
@jean-paul I was thinking it would be great for loudspeakers, no more bracing for days, mockup with glue and nail it all in place. Like welded - yes, very much so. Look at the car lifting video in the first post.
That would be a nice way to assemble loudspeakers!
Bracing is also needed for rigidity/vibration damping isn't it? Not a loudspeaker builder so just wild guessing.
Bracing is also needed for rigidity/vibration damping isn't it? Not a loudspeaker builder so just wild guessing.
Yes, but with this type of bond I would expect you can get away with a process of:
Glue - brace - nails - remove braces immediately
@Cal Weldon here's a short video from a demo in YOUR neighborhood:
Short demonstration of the binding of the wood and the effects of how it functions.
Glue - brace - nails - remove braces immediately
@Cal Weldon here's a short video from a demo in YOUR neighborhood:
Short demonstration of the binding of the wood and the effects of how it functions.
They're not for structural, that's apparent (or is it?). For joinery, they seem to shine. What a great idea on the surface. What happens over time is yet to be seen.
The 2 1/4" common nail that is used for 3/4" plywood relies on 1 1/2" into the base material and a head on the plywood side of things to ensure a similar pull out strength.
They wouldn't be for me when making a cabinet as I like a 'labour economical' means of inside corner blocking and blind nailing. It really is the Speakerman's best friend. The nails act as the clamp and there's no waiting for the glue to dry, you just soldier on.
Cheers K, thanks for bringing this to the table.
The 2 1/4" common nail that is used for 3/4" plywood relies on 1 1/2" into the base material and a head on the plywood side of things to ensure a similar pull out strength.
They wouldn't be for me when making a cabinet as I like a 'labour economical' means of inside corner blocking and blind nailing. It really is the Speakerman's best friend. The nails act as the clamp and there's no waiting for the glue to dry, you just soldier on.
Cheers K, thanks for bringing this to the table.
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Yes, that's what I meant, mixing up the words bracing and clamp for some reason. In my mind there are two kinds of bracing happening with woodworking: The permanent one that @jean-paul was referring to, and the temporary bracing that I was thinking about to make everything stay in the right place until the glue has set.
I will not make excuses for my linguistic mess up, but I can offer a relevant diversion:
In Norwegian we say "skrutvinge" which if translated directly would become the somewhat hilarious "screwforce", the actual translation would be "screw-vice" or "screwclamp".
Ahem... I am planning on applying my "screwforce" skills this weekend.
Sadly, not with the hard enough to be nails wood, mostly spruce and OSB, no beech for me.
(Those nails are made from beech)
Okay, one more:
Would love to have some nice birch to use my screwforce on, but those damn birches are really pricey these days.
I'll stop after this one, honest!
Because you are screwing, to apply the force, to make the wood stay in a certain place, is what I am talking about, y'know...
I will not make excuses for my linguistic mess up, but I can offer a relevant diversion:
In Norwegian we say "skrutvinge" which if translated directly would become the somewhat hilarious "screwforce", the actual translation would be "screw-vice" or "screwclamp".
Ahem... I am planning on applying my "screwforce" skills this weekend.
Sadly, not with the hard enough to be nails wood, mostly spruce and OSB, no beech for me.
(Those nails are made from beech)
Okay, one more:
Would love to have some nice birch to use my screwforce on, but those damn birches are really pricey these days.
I'll stop after this one, honest!
Because you are screwing, to apply the force, to make the wood stay in a certain place, is what I am talking about, y'know...
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No problem. I also once swapped clamp for brace and everybody was looking at me.
Why not ask Beck for a demo combined with your project? Make a video to introduce this to the DIY loudspeaker community and all can be happy. As long as it won’t be an advertorial it would be interesting to see actual application.
Why not ask Beck for a demo combined with your project? Make a video to introduce this to the DIY loudspeaker community and all can be happy. As long as it won’t be an advertorial it would be interesting to see actual application.
I was keen to find out more about the science behind the Lignoloc wooden nails.
Unsurprisingly, the key lies with the lignin mentioned by KaffiMann. This substance is the natural 'glue' in plant materials.
When a beech wood nail is shot at around 30 m/s into softwood without pre-drilling, the friction between the nail surface and the softwood produces temperatures high enough to soften the lignin 'glue'.
The re-hardening of the softened lignin causes 'wood welding' which doubles pull out strength in comparison to wood nails fixed without wood welding.
The fused timber joint is stronger than conventional adhesives, and even stronger than the native wood.
(Reference various sources.)
Unsurprisingly, the key lies with the lignin mentioned by KaffiMann. This substance is the natural 'glue' in plant materials.
When a beech wood nail is shot at around 30 m/s into softwood without pre-drilling, the friction between the nail surface and the softwood produces temperatures high enough to soften the lignin 'glue'.
The re-hardening of the softened lignin causes 'wood welding' which doubles pull out strength in comparison to wood nails fixed without wood welding.
The fused timber joint is stronger than conventional adhesives, and even stronger than the native wood.
(Reference various sources.)
Very very cool. I love out of the box thinking like this. It saves on materials, there's little to no cure time (vs glue), better strength.
I'm wondering if beech is chosen due to specific properties compared to (eg) oak, or if it's simply more available or cheaper. I do also wonder again if bamboo would work, or if it's not able to absorb enough lignin or some other reason related to bonding. Bamboo is way strong and easy to grow quickly.
I'm wondering if beech is chosen due to specific properties compared to (eg) oak, or if it's simply more available or cheaper. I do also wonder again if bamboo would work, or if it's not able to absorb enough lignin or some other reason related to bonding. Bamboo is way strong and easy to grow quickly.
Beech is chosen because it is a hard wood which is readily available and is widely used, e.g., in furniture making.
While hunting around, I read that investigations have taken place with regard to bamboo and wood welding.
Read more about lignin here: https://www.britannica.com/science/lignin
While hunting around, I read that investigations have taken place with regard to bamboo and wood welding.
Read more about lignin here: https://www.britannica.com/science/lignin
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Here's an approachable article from 2021 on linear friction welding, in which I saw the mention of bamboo:
https://www.cdbb.cam.ac.uk/news/developing-wood-welding-rapid-timber-joining-technique
And the accompanying video:
https://www.cdbb.cam.ac.uk/news/developing-wood-welding-rapid-timber-joining-technique
And the accompanying video:
Interesting, but ... one needs a proprietary nail gun, which means a person can't use a currently owned gun. I also don't know if metal (steel/iron) is more scarce than trees? Metal is recyclable, wood not - and yes I realize trees can be planted but are enough being planted versus what is being cleared for development (thinking of Tesla in Germany) or being consumed by forest fires (thinking of Jasper National Park) or being cleared for farming (thinking of Brazil)? I'm not saying it's necessarily a bad idea, just don't know if it's either a marketable idea or a needed item.
I think it is a great option mostly because I would be able to glue then clamp it all together, and the following day being able to use the round over bit on my router without worrying about breaking the bit.
Also: increasing strength of joints without relying on dowels or fancy woodworking techniques that I do not possess or have the luxury of time to master.
Also: increasing strength of joints without relying on dowels or fancy woodworking techniques that I do not possess or have the luxury of time to master.