Hi That is a good point. That is why they are included in our other projects. If you want to find out more there is an interesting article on it: issuu.com/greggdowski/docs/2021_february_re/s/11664104
Is it actually usable? These things usually aren't made or concrete let alone without any reinforcement. They are steel tubes on pretty much all wind turbines aren't they? Don't the towers need to take tensile loads? In which case concrete wouldn't work at all, unless maybe if you prestress it, but that you can't do with 3D printing. You could post tension it I guess, but I don't really see any features in the print to facilitate that.
This is a different concrete I've been looking into it the tensile strength and compressive strength. An example of this printable concrete is mixture ratio 50 % cement 30 % sand 15% fiberglass reinforcing strands 5 % lime. The mixture has to be mixed according to speed of that printer prints tho because it's hot set concrete it makes its own heat as it sets. Normal concrete I use in towers takes about 7 days to cure without cracking. I would guess as long as the water doesn't evaporate to fast this concrete could set in 4 to 6 hrs. Also a fun fact for you guys is that a cylinder has the most strength in its design thus is why after the nuclear bomb in Japan the only things left in the city were street posts and water towers. Corners are what allow drag forces on structures as you can see with the Filling that the printer did between inside column and outside column they are curved so that to act as a diflection point to dissipate loads. I think this is also a greener way to build them because usually they are made of things that's are not easily recycled. Were as at the end of this things life you bring in a rock crusher and viola you have powdered concrete base to be reused again.
@@bla8ksheep926 Interesting to know about the concrete, but the Hiroshima and Nagasaki memorials I recommend you visit personally if you ever happen to be in Japan. Most of the cities getting leveled was down to light wooden construction of Japanese architecture and the firestorm the nuclear bomb started, not so much the blast itself. The few concrete European style buildings there were stayed mostly upright, even at the very epicenter. Also Tokyo firebombing achieved very similar results just by setting the entire city on fire.
What a great achievement!! You should definitely print this with our Weber 3D mortar!! I expect you can print with less pauses and thus higher in 1 go :) For the rest: wow!!
soon? my friend, robots making robots is old news. you have 3d printers that print 3d printers at a hobby level, and computer programs that write computer programs. welcome to the future buddy!
i just dont know how this could be economical. too slow, and it does not have any rebar. i like the wooden towers too. they use plwood, which has a great strength to denisty ratio. to clarify its strong but very light. we are using plywood which can be sourced from some very sustainable wood crops. It taken me a long time to like building with wood because we have destroyed so many forests, but we have some marginal lands that we can grow wood on with diverted water. I have seen some great wooden skyscrapers too. steel and cement create a lot of pollution and emissions. I think they have theoritical wooden towers that could go up to 400m. the light weight of the wood is great because it makes transportation really easy. on a lot of wind farms they have to build new roads just to get the equipment. moving concrete or steel towers is not easy on roads. but with wooden towers. the wooden components can be much easily delivered and set up by crane. it goes together like an erector set, and its carbon negative
I think you're misunderstanding what this is. Yes currently this is not economical, give it 5-10 years and it will be. The material they use isnt pure concrete and once they have advanced the technology enough they wont need to transport the towers, they will just need to transport a machine, place it down in a designated spot and push 'Run' then right on the build site a turbine is built in a few days. This will greatly reduce the cost for companies because instead of shipping 1 turbine after another, they just need to ship 1 machine to build it all. And thats just the cost in shipping, eventually half or more of the people in this video will be replaced by other machines and sensors, the material will only get cheaper and the machine will only get more efficient and cheaper aswell. Currently the traditional way is more economical but that will not be the case in a decade or less. Especially since 3d printers dont need time off due to pandemics or any other reason that costs employers money and labor hours.
Personally, I think we need to refine solar concentrating methods to be highly controlled to produce refractory, molten and other refined materials from mined raw materials... like cement. I'm guessing what is printed is set at the site and the rebar and bolts are added prior to pouring either the whole tube or just the outer wall?
![The Most Innovative 3D Printed House In The World [Mense-Korte]](http://i.ytimg.com/vi/qWBA-6NgIJg/mqdefault.jpg)
![The Most Innovative 3D Printed House In The World [Mense-Korte]](/img/tr.png)
Without a steel reinforcement is this an absolutely NO-GO
Hi
That is a good point. That is why they are included in our other projects.
If you want to find out more there is an interesting article on it: issuu.com/greggdowski/docs/2021_february_re/s/11664104
Good job. I would like to see a single floor 1950's palm springs style house made with this.
Looks like they need to adjust the jerk settings.
So no one is going to talk about the googly eyes on the print head?
those are the cameras
Its for thermodynamics
Is it actually usable? These things usually aren't made or concrete let alone without any reinforcement. They are steel tubes on pretty much all wind turbines aren't they? Don't the towers need to take tensile loads? In which case concrete wouldn't work at all, unless maybe if you prestress it, but that you can't do with 3D printing. You could post tension it I guess, but I don't really see any features in the print to facilitate that.
this guy knows his turbines
This is a different concrete I've been looking into it the tensile strength and compressive strength. An example of this printable concrete is mixture ratio 50 % cement 30 % sand 15% fiberglass reinforcing strands 5 % lime. The mixture has to be mixed according to speed of that printer prints tho because it's hot set concrete it makes its own heat as it sets. Normal concrete I use in towers takes about 7 days to cure without cracking. I would guess as long as the water doesn't evaporate to fast this concrete could set in 4 to 6 hrs. Also a fun fact for you guys is that a cylinder has the most strength in its design thus is why after the nuclear bomb in Japan the only things left in the city were street posts and water towers. Corners are what allow drag forces on structures as you can see with the Filling that the printer did between inside column and outside column they are curved so that to act as a diflection point to dissipate loads. I think this is also a greener way to build them because usually they are made of things that's are not easily recycled. Were as at the end of this things life you bring in a rock crusher and viola you have powdered concrete base to be reused again.
@@bla8ksheep926 Interesting to know about the concrete, but the Hiroshima and Nagasaki memorials I recommend you visit personally if you ever happen to be in Japan. Most of the cities getting leveled was down to light wooden construction of Japanese architecture and the firestorm the nuclear bomb started, not so much the blast itself. The few concrete European style buildings there were stayed mostly upright, even at the very epicenter. Also Tokyo firebombing achieved very similar results just by setting the entire city on fire.
too much drift in the print you need a stronger frame to get a better finish, looking good though.
@@remy5405 what are those "smooth steppers" you're talking about?
What a great achievement!! You should definitely print this with our Weber 3D mortar!! I expect you can print with less pauses and thus higher in 1 go :) For the rest: wow!!
Can this structure withstand the pressure, if we fill the inner cylinder with water. (after the structure is fully cured)
Awesome scale system! Interesting! Are these structurally designed for use as-is and if not, what is the followup process for implementation?
How can this possibly be faster than putting up 2/3 sections in a day. Surely can only build so high before you have to let it dry
really cool! Good job
It needs to be steel reinforced. Tensioned rebar or something.
Every structure engineer will give you the answer !!! NO once using fiberglass fibers in the mortar!!
No rebar?
How exactly would this be transported to the customer's location?
This is printed on location
Stupid question it is a testing facility, in real it will be build on side
Soon robots will be building robots.
soon? my friend, robots making robots is old news. you have 3d printers that print 3d printers at a hobby level, and computer programs that write computer programs. welcome to the future buddy!
you clowns forgot to add cross braces to the gantry. shaky shaky
In the future robots build everything and human can be lazy all day....my ass.
i just dont know how this could be economical. too slow, and it does not have any rebar. i like the wooden towers too. they use plwood, which has a great strength to denisty ratio. to clarify its strong but very light. we are using plywood which can be sourced from some very sustainable wood crops. It taken me a long time to like building with wood because we have destroyed so many forests, but we have some marginal lands that we can grow wood on with diverted water. I have seen some great wooden skyscrapers too. steel and cement create a lot of pollution and emissions. I think they have theoritical wooden towers that could go up to 400m. the light weight of the wood is great because it makes transportation really easy. on a lot of wind farms they have to build new roads just to get the equipment. moving concrete or steel towers is not easy on roads. but with wooden towers. the wooden components can be much easily delivered and set up by crane. it goes together like an erector set, and its carbon negative
I think you're misunderstanding what this is. Yes currently this is not economical, give it 5-10 years and it will be. The material they use isnt pure concrete and once they have advanced the technology enough they wont need to transport the towers, they will just need to transport a machine, place it down in a designated spot and push 'Run' then right on the build site a turbine is built in a few days. This will greatly reduce the cost for companies because instead of shipping 1 turbine after another, they just need to ship 1 machine to build it all. And thats just the cost in shipping, eventually half or more of the people in this video will be replaced by other machines and sensors, the material will only get cheaper and the machine will only get more efficient and cheaper aswell.
Currently the traditional way is more economical but that will not be the case in a decade or less. Especially since 3d printers dont need time off due to pandemics or any other reason that costs employers money and labor hours.
Personally, I think we need to refine solar concentrating methods to be highly controlled to produce refractory, molten and other refined materials from mined raw materials... like cement.
I'm guessing what is printed is set at the site and the rebar and bolts are added prior to pouring either the whole tube or just the outer wall?