I liked the method of cutting and rearranging it from pieces from a cube. Makes clear what the basic principle is. That sort of joint would even be possible with different numbers of "cake pieces", but it wouldn't look so nice.
+AshtonColeman I'm pretty sure metallurgist, forge & foundry workers and machinists would disagree with you. Sure, there is nothing visible, but the structures are there and they will affect things.
+AshtonColeman I agree, but simple cuts and imperfect (bumpy teeth) weld seams are much more economical, and repairable. I even hold up truck frames after breaking a perfect line, no need for weird geometry...just weird welding.
***** You are now talking about the crystal structure, while I'm talking about the actual "grain" which is present in any steel mill product. If you machine a forged piece for example, it is sure going to bend in the perpendicular to the "grain" direction. Sure thing that the crystal structure has its fingers in play here.
The most important part of this video and what was most impressive was not the joint, but how you dissected it and figured out how to make it. Well done and thank you for the education.
Thank you Matthias for doing the math for everyone then devising a teaching method to show it in simple terms. Your intellect and teaching skills are stunning but you are very gracious about both.
Yet another fascinating venture into complex joinery, Matthias. You have got to be the most entertaining woodworker I've ever seen. I like your step by step explanations, and also your frank honesty in determining the value, and lack of, this joint after all the work that you put into it. Thanks.
I am not sure how I got to this video. However, it was a very interesting process, and when you asked how useful it was and then answered that it's not, I thought that was hilarious. Thanks.
The 3d printer only has to be more accurate than the woodworking we see in this video. And every 3d printer I have seen is. I have several 3d printed parts which I use regularly and they all have sub 1mm precision. You won't get that with a panto-router and chisel.
+Tracy Reed So, you came to a woodworker's channel to tell someone not to woodwork? Did you just come from a cooking channel where you told someone it's easier to just order a pizza?
+Stephen Al-Hakim Is the pizza 3d printed? More seriously though, this is an example of cross disciplinary innovation. It is useless for woodworking, but could be useful for 3d printed parts that are assembled into a larger item.
+KnightsWithoutATable Are you calling the 3 way joint useless for woodworking? I don't think it is at all. It's one more decorative joint that can be beautiful if used properly. Just don't use it in a load bearing situation.
I have been kind of waiting for you to do this joint and address the actual strength of it that has seem to become a myth of sorts when compared to traditional joinery, thanks Matthias.
The fact that you found it easier to make a template for the panorouter then cut it by hand (and the fact it worked so accurately) is outrageous. Ever more impressive wood magic, even explained.
I´m not a woodworker but I loved this video. What an extremely clever piece of work. But what made the video, for me, was your closing statement. Loved it :D Thank you.
6/11/2019 USA Grandpa Bill: This is by far the most confusing and interesting joint you've shown. Thank you. You always make videos worth watching. I daresay we are so much with you in spirit you could be sitting on the concrete straightening rusty nails and we'd probably watch you and listen to you talk. You probably have an old masters method of straightening the nails and blunting the tips for penetration.
I love that matthias will work his ass off creating something then admit it's not the best thing to do. That's why I subscribed, bought his plans, and tried to be better. thank you matthias
2.2 million people got inspired, then frustrated and are now staring at a pile of firewood, wondering what the hell went wrong with their lives. Thanks a lot Matthias!
Matthias - Thanks for the video! I love the exercise in geometry, the no nonsense approach to building the joint and the honest assessment of its usefulness.
Why are people crying over him using the glue? It was clearly just for quick demonstration so that he could model each piece without having to painstakingly chisel everything as he showed different configurations... the glue did nothing to hold the actual joint together... It's not like he's using glue to make the *actual* model.... as you can see from the fact that he makes an actual joint by cutting into solid wood pieces at the end.********
I'd say it would be a useful and interesting joint to implement into kid's wooden toy. Plus it can be assembled in 3 different ways. Imagine if a kid have bunch of these, what will they build?
Great video about an interesting and exotic joint! Explaining the principle before constructing the final joint was a big plus. And I liked your practical conclusion after it was finished (and tested!)
That was better than an action movie!! All that work and then the final "pull-apart" and let-down!! Great acting, great directing - surprising ending! Just too enthralling!!!
except Japanese do NOT use glue or a saw , and it is entirely hand carved . And NO it is not useless , And as a half Japanese myself born and raised in Kyoto I assure you that Todaiji in Nara was built partly using this type of joinery and it has been standing for 1300 years in spite of at least 6 recorded major earthquakes in the area . And the entire temple was built entirely out of wood without any metal whatsoever , not a single nail and of course no use of any adhesive . The entire temple is made of interlocked pieces of wood, just like the Ise Shrine which is nearly 2000 years old and is entirely undone and rebuilt every 20 years .
Morgan Olfursson I'm guessing that if you use a weaker, but more flexible joint like this in conjunction with stronger, but less variable joint for structures, then you end up with something like today's hybrid material (but on a much larger scale)? Maybe the less rigidity also give it better endurance against earthquakes too.
SuperFunkmachine I'm entirely guessing, but I think the rebuilding might be more ceremonial than for actual maintenance? I guess there will definitely be pieces that you must replace, but the main structure must be stable enough or else it would topple while you take it apart.
You're doing my head in Matthias. So many angles! You really are the king of angular thinking. it would be interesting to see how strong it would be all glued up.
Of course you just went a head and cut an "impossible" joint on a machine you designed. This is the kind of stuff you really excel in. How did you figure out the angle you needed to mount it in the pantorouter?
Nice job What you think about multi-cutter something like Bosch GOP 55-36 or any other for cutting those joints ???? I think it will be much faster and easy to do same job...
Great video. The only thing I must mention is that on the cube, the angle of rotation needed is 90 degrees not 120 due to the fact that is has 4 possible symmetrical configurations (360/4=90). The 120 only applies to the triangular joint as it has 3 possible positions (360/3=120)
Maxx Fordham yes figuratively. God being also figuratively because you are speaking of a significantly higher power of which is fictional and can only be reffered to metaphorically
EliosMoonElios yes but thats not what i said, they are both very clever. even trying to copy a joint like this is difficult, let alone explain it as if it were making toast
Maxx Fordham i didnt say every single person believes in something different, it was an over all generalisation. but there are also many types of christians,athiests etc that arent like some of their fellow believers, some christians are very modest and godly and some cuss like hell and are in rock bands and some dont even believe in heaven and hell but are still christian, so yeah everyone is different, mostly.
I'd seen that joint before but just couldn't wrap my head around it until you so elegantly explained it. Great job! Also, how about showing us more on that mousetrap you built.
This hurt my head for many reasons and most I wont go into. Great job Matthias,impressive that you figured it all out. I would have broken everything and probably smashed my workshop long before understanding this joint - which reminds me. I shall subrscribe
Brilliant. The geometry in this is almost hypnotic... from a structural perspective, and a simplicity perspective. If the target material was say aluminium joinery (or 3D printed titanium for aerospace or NASA) this joint may have some really useful applications. Maybe even in miniature applications for surgical implants... Joinery comes in useful in many places, not just in the wood-shop and not just with timber.
From the moment i first saw that joint i suspected that it wasn't good for anything but decoration. I had actually saved the gif in my bookmarks so i'd get around and make one. Thanks for saving me the time :)
+NeXTSTORMING Probably stress. One tends to use more pushing force when cutting thick woods (impatience?). Plus waxing the saw blade would help cut down on friction.
