Excellent idea and design! Would like to throw a couple of comments/suggestions if you don't mind. 1. Do not drill the holes so close to the edge of the square tube or the board clip (U-Shape Connector), This is the point you will get the shear action and potentially rip through the thinnest section of material. I would leave an equivelant amount of space between the bolt hole and the edge of material equal to the bolt diameter, or better yet, 1 1/2 times the bolt diameter would be opt
este es el mejor conector que encontré para trabajar mi domo. Y alcaro que busqué mucho. Me había resignado a que iba a ser dificultoso. En este caso, puedo variar el ángulo como quiera.
@alicmiran Those connector are universal, they will do for any angle, the angle is in the cut of the wood. You could also build plates with the angle of the specific model you wish to build.
Though it looks good, it just doesn't seem like it would be structurally sound using pvc at such critical junctions. It would seem more trustworthy if you replaced the pvc with metal.
third idea or recommendation: 3. fix the bolt head to the square tube (threaded section would then be sticking out into the U-Shape Clamp) by tacking it to the square tube, this would allow a person to utilize one tool to tighten and an easier adjustment could be made if needed. This is only a recommendation to help keep a free hand to support yourself while in the air, on a ladder, or whatever the scenario may be. All to often I have seen a person using a double wrench application and fall.
Dude... you are a life saver. I have been looking for a diy hub for ever. How much did that cost to build? Just because of this one video, I am going to be able to build my home. Thank you so much.
the 11 degrees can be done by simply beveling the end of the board being bolted to the bracket. pvc will deform over time and isn't strong enough for long term structural strength. large electrical conduit would probably work well enough for non human habitations and wouldn't be very expensive I think a "Simpson strong tie" (brand) rafter fastener could be used for the "u" bracket at a considerable cost savings.
Exelente idea me encanta aunque yo solidaria los pernos que van por dentro del círculo y no haría esa cajita si se daña o dobla o rompe el per no es más fácil des soltarlo que romper toda esa cajita donde está el per no metido bueno es mi idea pero exelente me gusta
Second idea - or recommendation. 2. Some were concerned about the ability to mount on a certain angle (for dome structures 11deg). When the U-Shape Connector is made, it can be cut, then formed, or if you are cutting out of a rectangle material go ahead and put your 11deg slop in and cut appropriately. I agree with the video poster, that you can attach his design at any angle. For those who are more precise, you can build the angle in, with positive stops for the material.
One possible way is to add a longer bolt and nut on the top. The top bolt will be longer with three nuts on it, two nuts to adjust the angle, they will be inside between the bracket and the pvc to hold it into the desired angle. And the third nut to tighten it to the pvc. But if the angle you desire is less than two nuts width, then use one between the bracket and pvc. But that pvc is the next question, it is not strong enough for a decent size dome using 2x4s. But it could be replaced with a metal pipe instead, a cold rolled pipe.
One other way to do it, just put one hole into the strut for a start, then put the one bolt in but don't tighten all the way yet, leave lose enough to allow the strut to spin on the bolt's axis, then build the rest of them that way of the entire dome, so you can let them all fall into the angle it needs, then drill the other 3 holes and clamp it in place now with the four bolts. All you would need to know then is only the length of the struts, the length of struts placed into the right position will automatically adjust the angle it needs if you allow it to be a lose connection at first. But it will try to invert itself by gravity, but just don't let it invert doing them one at a time, and it will be the right angles just by using the right length struts in the right places. I watched a guy who made flexible hubs, and all he needed to know is how long the struts are supposed to be, and where they go, and the flexible hub took the shape it needed automatically, and it turned into the geo dome without knowing a single angle. lmao But his experiment was model scale, but it is proof of concept. All he needed to know is strut lengths and where they belong. The rubberish hubs flexed to produce the angle needed automatically, all he did was slam the right length straws(his struts) into the hub holes, no cutting any angles, not worry at all about a singe angle, and it produced a perfect geo dome made of straws and rubberish hubs. But like it was only proof of concept, his flexible hubs would never be strong enough in the real world. But his flexible hubs shows you that all you really need to know is strut length if you can allow your hub to strut connection to rotate(be lose) while you build it, then once the entire dome has all the struts, go thru and tighten them all, drill those other 3 holes and tighten them too. So, in essence you are trying to make it behave like a rubber hub where it will allow itself to allow the strut to take the angle it needs, then once the entire dome has all the struts with one bolt in each, drill the other three and tighten the entire dome. You might need something to help you keep the hexagons and pentagons from inverting when you have only one bolt is in each, but once you get the pentagons and hexagons in the right direction(not inverted) they will stay that way, even with only one bolt in each strut. Because you will need those struts to be the exact right length, and this will allow it to press up against the center of the hub, making the dome stronger, and it will never invert at the hubs once you get them outright, because of this.. But come back later after you build enough of the dome you know it is sitting at the correct angle, and drill the other holes and put the bolts thru them and tighten them, you are done.
В чем новация? Обрезок трубы стеклопластик? кстати да " - Why can't the U-connector be bolted directly to the tube?" U-connector вроде-бы никем не патентован и стоит вполне гуманно, порядка 0.5$ при заказе более 200шт и дешевле
First are these commercially available?. Second the holes are close but I see that you are working around the PVC so not to drill it, good idea. Third and final point the
hole spacing is not important because the structure is compressive not torsional or flexural. the joint need only keep the beam ends from shifting around or crushing the joint itself.
@pejovicpeja Твоя моя тоже не понимать...как же так случилось что славяне перестали друг друга понимать....вобщем вот czcams.com/video/VdNPFBPGYec/video.html
So no one has followed through with these units and no geodesic dome was ever built using them! so would the owner step forward and start a meaningful dialogue on this or I will assume they are free to copy and modify for my own devices.
pointlessly complicated idea needs a lot of assembling these parts can be pressed in one piece and holes punched why so much jazz and so little substance
![Создаю активный силовой экзоскелет. #3 [Туловище]](http://i.ytimg.com/vi/uzpnKQ7PIsY/mqdefault.jpg)
Excellent idea and design!
Would like to throw a couple of comments/suggestions if you don't mind.
1. Do not drill the holes so close to the edge of the square tube or the board clip (U-Shape Connector), This is the point you will get the shear action and potentially rip through the thinnest section of material. I would leave an equivelant amount of space between the bolt hole and the edge of material equal to the bolt diameter, or better yet, 1 1/2 times the bolt diameter would be opt
este es el mejor conector que encontré para trabajar mi domo. Y alcaro que busqué mucho. Me había resignado a que iba a ser dificultoso. En este caso, puedo variar el ángulo como quiera.
Miguel por favor dame una mano... Cómo le das el ángulo a cada brazo si la pieza de base es cilindrica? (se la das a la madera?) gracias
@alicmiran Those connector are universal, they will do for any angle, the angle is in the cut of the wood. You could also build plates with the angle of the specific model you wish to build.
Though it looks good, it just doesn't seem like it would be structurally sound using pvc at such critical junctions. It would seem more trustworthy if you replaced the pvc with metal.
third idea or recommendation:
3. fix the bolt head to the square tube (threaded section would then be sticking out into the U-Shape Clamp) by tacking it to the square tube, this would allow a person to utilize one tool to tighten and an easier adjustment could be made if needed. This is only a recommendation to help keep a free hand to support yourself while in the air, on a ladder, or whatever the scenario may be. All to often I have seen a person using a double wrench application and fall.
Steve Heavyside I
Dude... you are a life saver. I have been looking for a diy hub for ever. How much did that cost to build?
Just because of this one video, I am going to be able to build my home. Thank you so much.
Awesome idea and for all the people concerned about strength just replace the pvc with metal tubing
it takes 3 1/2 minutes to show a concept that can be grasped in 30 seconds
the 11 degrees can be done by simply beveling the end of the board being bolted to the bracket.
pvc will deform over time and isn't strong enough for long term structural strength. large electrical conduit would probably work well enough for non human habitations and wouldn't be very expensive
I think a "Simpson strong tie" (brand) rafter fastener could be used for the "u" bracket at a considerable cost savings.
Is the angle always 11 degrees? Of does the angle depends on 3V 2V etc?
Very Creative, great idea
Exelente idea me encanta aunque yo solidaria los pernos que van por dentro del círculo y no haría esa cajita si se daña o dobla o rompe el per no es más fácil des soltarlo que romper toda esa cajita donde está el per no metido bueno es mi idea pero exelente me gusta
Groovy 🎶🎵.
I don't think there is a soul on this earth that needs a 3D printer more than the folks making these things.
I hope it is very strong. It sure looks good. Simple... Thank you for sharing that! xoxo
GRACIAS AMIGO POR COMPARTIR SALUDOS DE MEXICO
Second idea - or recommendation.
2. Some were concerned about the ability to mount on a certain angle (for dome structures 11deg). When the U-Shape Connector is made, it can be cut, then formed, or if you are cutting out of a rectangle material go ahead and put your 11deg slop in and cut appropriately. I agree with the video poster, that you can attach his design at any angle. For those who are more precise, you can build the angle in, with positive stops for the material.
Love that, so how do you form the angles for each struts?
Great question, the thing if flat with no angles.
One possible way is to add a longer bolt and nut on the top. The top bolt will be longer with three nuts on it, two nuts to adjust the angle, they will be inside between the bracket and the pvc to hold it into the desired angle. And the third nut to tighten it to the pvc. But if the angle you desire is less than two nuts width, then use one between the bracket and pvc.
But that pvc is the next question, it is not strong enough for a decent size dome using 2x4s. But it could be replaced with a metal pipe instead, a cold rolled pipe.
One other way to do it, just put one hole into the strut for a start, then put the one bolt in but don't tighten all the way yet, leave lose enough to allow the strut to spin on the bolt's axis, then build the rest of them that way of the entire dome, so you can let them all fall into the angle it needs, then drill the other 3 holes and clamp it in place now with the four bolts.
All you would need to know then is only the length of the struts, the length of struts placed into the right position will automatically adjust the angle it needs if you allow it to be a lose connection at first. But it will try to invert itself by gravity, but just don't let it invert doing them one at a time, and it will be the right angles just by using the right length struts in the right places.
I watched a guy who made flexible hubs, and all he needed to know is how long the struts are supposed to be, and where they go, and the flexible hub took the shape it needed automatically, and it turned into the geo dome without knowing a single angle. lmao But his experiment was model scale, but it is proof of concept. All he needed to know is strut lengths and where they belong. The rubberish hubs flexed to produce the angle needed automatically, all he did was slam the right length straws(his struts) into the hub holes, no cutting any angles, not worry at all about a singe angle, and it produced a perfect geo dome made of straws and rubberish hubs. But like it was only proof of concept, his flexible hubs would never be strong enough in the real world.
But his flexible hubs shows you that all you really need to know is strut length if you can allow your hub to strut connection to rotate(be lose) while you build it, then once the entire dome has all the struts, go thru and tighten them all, drill those other 3 holes and tighten them too. So, in essence you are trying to make it behave like a rubber hub where it will allow itself to allow the strut to take the angle it needs, then once the entire dome has all the struts with one bolt in each, drill the other three and tighten the entire dome. You might need something to help you keep the hexagons and pentagons from inverting when you have only one bolt is in each, but once you get the pentagons and hexagons in the right direction(not inverted) they will stay that way, even with only one bolt in each strut. Because you will need those struts to be the exact right length, and this will allow it to press up against the center of the hub, making the dome stronger, and it will never invert at the hubs once you get them outright, because of this.. But come back later after you build enough of the dome you know it is sitting at the correct angle, and drill the other holes and put the bolts thru them and tighten them, you are done.
Thank god for mute
Skip to 2:52 for full concept.
Rube Goldberg move over. Here comes the dome guru from hell, marko peyovin
В чем новация? Обрезок трубы стеклопластик?
кстати да " - Why can't the U-connector be bolted directly to the tube?"
U-connector вроде-бы никем не патентован и стоит вполне гуманно, порядка 0.5$
при заказе более 200шт и дешевле
This is awesome!
thank you 👍
Dance, dance, dance !!
I would be concerned with the square tubing collapsing. That's a weak link in that system.
So who has followed through with the suggestions or has this died on the Vine, if you have continued please respond to this.
Jel si napravio Kupolu? Ja sam blizu Panceva i planiram jedan takav plastenik s precnikom(diameter) oko 14 metara.
First are these commercially available?. Second the holes are close but I see that you are working around the PVC so not to drill it, good idea. Third and final point the
The 11degrees can be compensated for by lengthening the bolts and throw 2 washers outside the PVC
hole spacing is not important because the structure is compressive not torsional or flexural. the joint need only keep the beam ends from shifting around or crushing the joint itself.
что то больно он похож на некоторые мною нарисованные)) Видео под названием "коннектор поубавилось деталек" (вставить видео ответ почему-то не могу)
Excellent!!!
A new professional level for a stupidly looooong video.
mechanical genius )) Респект и уважуха :D
los grados se los puedes dar en los barrenos
Con un barreno de mayor tamaño es suficiente, y hay más libertad para modificar el ángulo.
@pejovicpeja Твоя моя тоже не понимать...как же так случилось что славяне перестали друг друга понимать....вобщем вот czcams.com/video/VdNPFBPGYec/video.html
So no one has followed through with these units and no geodesic dome was ever built using them!
so would the owner step forward and start a meaningful dialogue on this or I will assume they are
free to copy and modify for my own devices.
pointlessly complicated idea needs a lot of assembling these parts can be pressed in one piece and holes punched why so much jazz and so little substance
GREAT MUSIC...
Lol!!!!!!!!!!!!!
BORING !!!
Jesus Christ! What a waste of time.Go to zip tie domes.Easy!!!