I think a lot of people might be looking at the texture and thinking "meh", but it looks like it'd be really easy to give the outside a skimcoat and make it really smooth and nice looking, or even skimcoat it with a texture, or heck, a block pattern.
I did not read all the comments, but many are concerned there is'nt any rebar and so it is not strong. Concrete can be made incredibly strong with additives. When special glue is added it is now "polymerConcrete". There are even tinny little fibers you can add that do work like a rebar. It could be a whole lot stronger then you think.
Is it pretty quiet compared to normal construction? One could use this type of printer to make cob or maybe adobe houses, too. Seems like it all comes down to the right consistency of extruded material.
not only consistency, everything should work nonstop flawless days or weeks oudoor without buildups and no need to clean...... and keep in mind it is portable.... believe me its hard to make
Noble 3D Printers, LLC a concrete fluid enough not to clog the extruder but solid enough to keep the form once extruded... it could be made with the low weight concrete mix used in skyscrapers that is pumped too...
My son and I recently got a 3D Printer, The Micro3D, and he asked "is anyone building a house with a 3D printer?" so I found you and then found this video...simply amazing!! I can't even begin to imagine the engineering that went into scaling up a 3D printer not to mention the trial and error, well done! I hope to see this in a playground near us or the finished houses in a community near us!!
you could add another head that installs steel rods into each layer bonding each layer as each layer is formed also this leaves a awesome finish for plastering over i dont see why people are complaining you have to plaster the outside and inside of most concrete buildings anyway
Being able to build up houses in a day means you expect recovery from disaster to be fixed in a week or so. Still needs work for other parts of the reconstruction though like plumbing and electrical grids... Still, if your entire country gets razed by a earthquake, a newly built concrete house is better than a tent, in terms of security and private spaces.
I'm guessing that with a bit of design and implementation, they could send a system like this to the Moon or Mars. I would bet that Elon is giving this type of system some serious thought,
Wonderful work. I think 3d printing is the future of architecture and construction of all sorts. Even if some things can be too big or complicated to print in one piece, you can just print separate modules and put them together. Seriously, the possibilities are unlimited.
Andrey Rudenko. Ignore the naysayers. You are the one with the intellect and gumption to actually make it work. This kind of process is still in it's infant stage, so whatever you build with it should be considered R&D. You should be thanked instead of criticized. Whoever says it will not work without rebar is wrong. One example is a dome, whether it be geodesically self supporting or a simple dome-top earth and mud hovel. There are rudimentary mud hovels in Europe that are still standing after some 1,000 years. (I'm not well learned in European history, so I could be way off the mark in terms of the age of those mud huts).
Expressing a concern is CURIOUSITY, not necessarily naysaying. Imagine the cool decks that could be built with this with water features built into it or a large fountain. Many possibilities in the future. Folks are just "thinking out loud" and brainstorming here I think.
Print dome houses that have multiple applications for both above and below ground. With concrete thats Hydrolitic. With fiber optic cables to bring in sun light and for power for them and to heat water. All self contained.
I love how ingenious this engineer is to design a massive 3D concrete printer and know nothing about employing a crane to hoist his creations into place. Should make that his next pet project.
Genius. What a beautiful, long list of possibilities I can see for this !!! The prefab company near me sells over a dozen concrete and wood frame buildings, most for businesses, per month. They also work with the Styrofoam block, ( ICF ?) poured concrete forms. About a dozen years ago they built/assembled a fantastic 3 story 18,900 sq.ft. factory building for a company near Pittsburgh that cost less to heat and cool than I pay for climate control of my 3 bedroom house. Stronger, more efficient and lower insurance costs as well !
Making buildings using computer controlled extruded concrete actually isn't a new idea at all. This only shows that this kind of technology is becoming so common that its within the reach of the hobbyist.
This makes a lot more sense to me than all this hype about 3d-printed cars/guns/hearts etc, basically because we already build in homogeneous materials such as concrete.
Fiber reinforcement between the layers would make this technology compelling. Reusable support material would be pretty cool too. Maybe a PE or PP in a PU foam slurry.
I think he could incorporate reinforcements of metal to strengthen it, and lift it with a crane. He could also add fiberglass to the mix for strength. An inner and outer wall would leave space to insulate, and run the wiring and plumbing. There is an additive for moisture barrier.
Try using foamcreate, by mixing Drexal foam with concrete. It comes out very light, in fact it floats in water once hardened. 3 times the insulation as concrete and it's even stronger! Plus with each bag of concrete it doubles the batch. Look up TH-cam: Air Crete Dome Homes. MUST LOOK UP VIDEO, IT WOULD CHANGE THE OUTCOME OF THE CURRENT PROJECT TO MAKE IT ECONOMICAL.
+atenrok You could use the right bricks and use this for the mortar. It may reduce the costs of a solid cement device. Hey, how using the same techniques to lay brick and then the cement head fills in the gaps? Would that work?
Very cool concept! I'm impressed that you've figured out the consistency and degree of over-vertical curves that can be poured. I do have a couple questions regarding this though: first, have you considered how steel or fibreglass reinforcement could be integrated into pouring with the printer. And second, how does curing time affect the rate of pouring or is the pouring time consuming enough that a constant pour can be achieved? Thanks! I'm super interested to see what can be done with this piece of tech!
Could do with an articulated arm same as mx3d and perhaps fibreglass or steel reinforced somehow, perhaps by applying fiberglass on top or as a projected plaster layer. if you feed a continuous cloth of steel in there it could be controlleable?
wow man that is awesome to say the least, how long did it take to get the mix right? You sir are a genius. Good luck in the future with your designs. Amazing...
Famtastic job. I wonder though how well the layers stand up if they are put under stress, will the layers slide apart. Seen in the last few seconds of the Vid one of the parts being moved so looks solid enough. I just get the feeling that if you had somethig running from one layer into the other it would make it much much stronger.
Had you considered adding dyes to the mix to change the color? Did you fill the space in between the inner and outer walls? I think a spray foam would work well to add some insulation value to the walls. Thank you for sharing.
You could go to a site build a whole complex then bury it. Even print holding tanks for fresh water an waste water. To have a system to recycle the water used. To support a certain number of people.
In case of clay plus baker - he could create reinforced walls on the fly. Also. He could use metallic chunks in the mass to get reinforcing too. Also. What doesn"t let to put a wire with fixators in the concreate mass right after the extruder and fold it the way it needs.
I wouldn't mind living in a 3-d printed house. Some of the Apis Cor models looks nice as hell. They're fire resistant, storm resistant, even bullet resistant for some of you living in Chicago. While they might not be good for redecoration, if all you care about is stable living conditions, it's a perfect choice.
Awesome! I wonder though if concrete is the best material for a 3D printed home in terms of strength to weight ratio? Since you have the option of a heated extruder, what about a wood fiber reinforced resin? Also, have you looked into the tiny house movement to build a livable prototype? If you build it on top of a large flatbed trailer with wheels as a base, then it's not subject to building codes.
Kevin Cassidy lol now you can and if you have a massive 3D concrete printer you can do this too. Although it might take a large amount of storage space on your computer and a big portion of your backyard too......
What a great idea ! A couple of years ago I was at a machinery auction , because thats where we buy most of the machines for my shop . There where a row of X Y Z welding robots that went for next to nothing , complete with power supplies and computers , I was sad to think they were going to go for scap metal , but I couldnt think of anything I could use them for , I badly wanted to rescue them . Some one like you could turn them back into gold . I noticed you leave a space between the walls , I take it that that could later be line pumped , and a heavy mess inserted , then theyd be similar in strength to concrete culvert ?
Your technology is 100% similar to that being use by WINSUN construction company based in Shanghai, China. But they (WINSUN) are a 3D construction specialist for more some time now. Its good to find a fellow American can do the same and practically build it for similar cause using less money and less labor. God job!
Pretty kool... I've spent alot of time reading up on this and tha mix so far they use is harder, stronger, drys faster then any other mix,. Pretty must makes straight stone was dry and how it's done, reinforcements are not needed... But time will tell if it holds true.
This is awesome! I'm curious about two things: Does the printer mix its own cement as needed, or do you have to keep mixing and climbing ladders to refill it? Also, as the "wet" layers build up, have you had any issues with the added weight overwhelming the not-yet-cured cement's ability to support it? Like having to dynamically slow down the printing process to allow the previous layers time to solidify before adding more layers?
+Dosbomber looks like he waits for it to dry, or he does have to refill, and by the times thats done, its cured enough to support it, the coloring shows that
jeremiah hintz I see the coloring, but it looks like there's about 10 layers that are still wet (darker). I was wondering about how much weight those wet layers can support before it starts to sag.
Well... how do you rebar it tho? Concrete is perfect for heavy compression projects but the tensile strength is really very poor. (in non leymans terms: Its great as a pillar but cant be used unsupported for longer stretches without serious breakage. Like a 5 meter span between two pillars would make a 20cm thick concrete floor break very easily).
Have you considered building plumbing into the walls to decrease production time? I'm currently in the process of building a desktop 3D printer do you have any tips about programming the printer? What kind of control process are you using?
it probably wouldn't be too difficult adapting reinforcements you could just change the printing patterns maybe make a different tip pour easier might not even have to change the consistency of the concrete
I was wondering about that because cement works great in compression but not in shear loading - thus in an earthquake you would have a lot of VERY heavy debris falling on you, along with the fact that concrete is a poor insulator.
This is cool. Without any kind of reinforcement such as rebar I can see this cracking due to weather. Maybe some kind of fibers are mixed with the cement?
Just another thought on the uses for a device like this.... 3D printing has opened a lot of doors previously unavailable because of how finely it can create structures, not just the macro structure of the wall, but build a wall with an internal structure, say of triangles, polygons, etc. What do you think the possibility is of devising an internal structure to walls that can create equal or greater strength, while greatly reducing the amount of raw material used?
+Dan O'Connell that's already been done in large scale prints, this particular structure just doesn't use it. It's just as doable as it is in small scale prints.
As a former concrete pump and 3D printer owner….combining high tech with Portland is a tough bedfellow. Very nice to watch it working properly, however. ;-) No comment on rebar …. but what about the building inspector? Perhaps a machine that chases those guys back into their rigs?
Problem - previous layer is not set up before next layer goes on and if concrete is mixed to set fast - it will set inside the machine. Solution - extruder also "SQUIRTS" a line of hardener that will initiate the concrete's setting reaction. Please let everyone know if this is already a part of the technology. Thank you so much for your work. Harold
Wouldn't squared off or shaped nozzles give a better exterior finish? Or a following rubber blade to spread the bead out more? I actually invented this in my head 30 years ago.
You know, I didn't see any form of steel reinforcement, and it looked like mix had zero rock in it too. Infact, the mix looked like it was a grout or mortar type mix that was really dry. What would the tensile strength of that be compared to regular old concrete poured with steel reinforcement in it?
You know what this could really use? Some modular parts that the concrete could be poured into to give them a nice smooth look; it wouldn't even need to be all that hard, and could be made out of anything from metal to plastic. Now i wonder where you could get some of those from~
That is so cool. But in the town we live in the city would shut you down, they would say it don't follow building codes. And before you can do any thing like that they want a lot of money for a building permit. Coal Valley IL. sucks.
Unless you've got the lost recipe for ancient Roman Concrete perfected, you need some type of reinforcement matrix between the layers or in the mix. Because obviously, having pre-formed rebar structures sticking out would interfere with the nozzle path. Personally, I don't like the layered look. It messes with my senses in a way. I can't describe it. I'd have to go back and smooth everything out or fill in. Thus creating more work for myself, that the 3D process was trying to eliminate.
TheBikerScout Yeah, but BFD, right? Meantime, you've got your castle. And I'm thinking mud mixed with straw is used to make huts - it all depends on the dimensions. It might be possible to use any fibrous material in the mix (the stronger the better) if you have coservative proportion of thickness to height. Stuff that stands for centuries. Eons, even.... Can't knock it down.
TheBikerScout It's for fun. Not a real castle to withstand seige (or earthquake). I'm sure Disney doesn't expect to build a real house out of it. Maybe just some quick disposable theme parks.
I realize this particular project is just for fun, and it's structural integrity isn't that critical. BUT... this is also a product showcase. Something that can more than likely be adopted to a larger scale. I'm sure the designer of the system hopes that happens. Otherwise it's a lot of work and investment just to make a kids sized castle. So that means, that there still needs to be a reinforcement matrix that needs to be worked out before this can become someone's home or structure. It's possible that small rebar can be pushed into the layers as the print head moves on. But that takes away from the set-it and forget-it building approach. And therefore slower than traditional slab tilt-up, or pour in place methods. We are going to be building a 55ft diameter dome home, and using a special mix called shortcrete that can be sprayed vertically without sagging. But being blown inside an inflated air form can be done in a matter of hours. Printing a dome structure would take many days. Which do you think would cost more? Everyone charges by the hour.
TheBikerScout The fact that people have been trying to print "real houses" is not news. The fact that this guy did a castle in his back yards is news. This has been the subject of university research for many years and I'm sure the topic has come up. They just didn't think of building castles in back yards or disney land as a potential market. lol And "dome homes" are the most impractical residences. It's more like a hippie novelty than anything that will be adopted in large scale.
Maybe an old Buckminster Fuller Geodesic Dome is hippieish... but a Monolithic Dome made out of concrete is awesome. If you've ever toured any of the nicer examples, they have a great "feel" to them when you step inside. Plus, our ground floor is 7 feet below grade, and the average temperature will fluctuate between 68°F and 72°F. Amazing natural light floods large areas without harsh angles and shadows. Earthquake and Hurricane proof. Won't rot, creak or be susceptible to in-the-wall critters like termites, rats or roaches. Don't knock something until you've got first hand knowledge of it.
+Steven Saunders I was thinking the same thing. After some consideration I had come to think that the rebar would have to be inserted buy the extruder head as it went along. Another way I guess was to have the extruder tilt and squirt it around the rebar. Also, if the geometry was such that it was self supporting rebar may not be necessary. You have fine control of the concrete layering and thus can make the exact shape. An engineer or architect could do amazing things with that. They were building things with concrete well before rebar.
There appears to be open trenches on the top. Is there a drainage system built into the design to address that. Also, I'm curious how expansion and contraction will affect all those seams after a few cycles of frost
I think a lot of people might be looking at the texture and thinking "meh", but it looks like it'd be really easy to give the outside a skimcoat and make it really smooth and nice looking, or even skimcoat it with a texture, or heck, a block pattern.
+Dan O'Connell Yup. Throw some stucco at it and there you go. If anything the ridges on the surface would make a great substrate.
Or even tint the cement to add interesting designs.
you trowel it real time while its printing.
I did not read all the comments, but many are concerned there is'nt any rebar and so it is not strong. Concrete can be made incredibly strong with additives. When special glue is added it is now "polymerConcrete". There are even tinny little fibers you can add that do work like a rebar. It could be a whole lot stronger then you think.
And no concrete erosion due to rebar rusting = more service years
There's an article about a 3d printed house today. Apparently it's cutting edge, I saw it first here years ago
Now I can print and live in a GIANT SHOE!!!
just like the little old lady!
Is it pretty quiet compared to normal construction? One could use this type of printer to make cob or maybe adobe houses, too. Seems like it all comes down to the right consistency of extruded material.
not only consistency, everything should work nonstop flawless days or weeks oudoor without buildups and no need to clean...... and keep in mind it is portable.... believe me its hard to make
Andrey Rudenko what is the mix recipe?
Noble 3D Printers, LLC a concrete fluid enough not to clog the extruder but solid enough to keep the form once extruded... it could be made with the low weight concrete mix used in skyscrapers that is pumped too...
+Andrey Rudenko brilliant work andrey. congratulations on this, i've barely just found it.
You wouldn't download a castle...
Cheese_Tube so don't pirate a movie.....
"would u download a car" we're so close guys so close
+screams I always like to say, "Yes, yes I would."
+screams One day, I dream of downloading a 1969 Plymouth Cuda... :)
For some completely inexplicable reason I want a early 90's Geo Metro in Poly Green.
I need help.
honeydew kendrick lamar fan?
Sean Ocansey yea
My son and I recently got a 3D Printer, The Micro3D, and he asked "is anyone building a house with a 3D printer?" so I found you and then found this video...simply amazing!! I can't even begin to imagine the engineering that went into scaling up a 3D printer not to mention the trial and error, well done! I hope to see this in a playground near us or the finished houses in a community near us!!
you could add another head that installs steel rods into each layer bonding each layer as each layer is formed also this leaves a awesome finish for plastering over i dont see why people are complaining you have to plaster the outside and inside of most concrete buildings anyway
+Deon Hamilton
Spray stucco on the outside for spatter finish or swirl finishing would be pretty easy.
you're right, but there is also concrete and geopolymer that does not require rebar
I would like a 3D printed Smurf house for my grandson. (And me) lol.
lmao
The implications of this are staggering.
Cat From The Future care to elaborate?
Being able to build up houses in a day means you expect recovery from disaster to be fixed in a week or so.
Still needs work for other parts of the reconstruction though like plumbing and electrical grids...
Still, if your entire country gets razed by a earthquake, a newly built concrete house is better than a tent, in terms of security and private spaces.
I'm guessing that with a bit of design and implementation, they could send a system like this to the Moon or Mars. I would bet that Elon is giving this type of system some serious thought,
That's pretty incredible! Great work!
Wonderful work. I think 3d printing is the future of architecture and construction of all sorts. Even if some things can be too big or complicated to print in one piece, you can just print separate modules and put them together. Seriously, the possibilities are unlimited.
What I like about this is that it's so modular. You just print out the different pieces and put them together.
Homeless shelters. Low Cost Housing. Disaster zones. The possibilities are endless.
google concrete tent
Not actually low cost the material and equipment is quite costly.
Show the whole machine!
+Brismo7 its so people cant copy the design
***** ohh ok
Brismo after he patents his machine
It's nothing so unique that it requires a patent and there are already companies who are 3D printing buildings using concrete as a medium.
That's what I said, Now if they showed the whole Machine, They r risking, Every other, Tom, Dick, & or Harry to Clone it! Ha! You think?
good work Rudenko. Hope for the best with your invention
This is absolutely amazing.
Andrey Rudenko. Ignore the naysayers. You are the one with the intellect and gumption to actually make it work. This kind of process is still in it's infant stage, so whatever you build with it should be considered R&D. You should be thanked instead of criticized. Whoever says it will not work without rebar is wrong. One example is a dome, whether it be geodesically self supporting or a simple dome-top earth and mud hovel. There are rudimentary mud hovels in Europe that are still standing after some 1,000 years. (I'm not well learned in European history, so I could be way off the mark in terms of the age of those mud huts).
Expressing a concern is CURIOUSITY, not necessarily naysaying. Imagine the cool decks that could be built with this with water features built into it or a large fountain. Many possibilities in the future. Folks are just "thinking out loud" and brainstorming here I think.
Guy: I built a castle with a 3D printer
Land lord: o-o ...................... oh
Hmmmm please, what is Holding it up, if anything at all...CuriousC
C,Mon, I am excited to know how, & what...C,Mon, Expertese""
Print dome houses that have multiple applications for both above and below ground. With concrete thats Hydrolitic. With fiber optic cables to bring in sun light and for power for them and to heat water. All self contained.
I love how ingenious this engineer is to design a massive 3D concrete printer and know nothing about employing a crane to hoist his creations into place. Should make that his next pet project.
Genius. What a beautiful, long list of possibilities I can see for this !!!
The prefab company near me sells over a dozen concrete and wood frame buildings, most for businesses, per month. They also work with the Styrofoam block, ( ICF ?) poured concrete forms. About a dozen years ago they built/assembled a fantastic 3 story 18,900 sq.ft. factory building for a company near Pittsburgh that cost less to heat and cool than I pay for climate control of my 3 bedroom house. Stronger, more efficient and lower insurance costs as well !
Crushing concrete castle with hydraulic press
relkcam lol
Making buildings using computer controlled extruded concrete actually isn't a new idea at all. This only shows that this kind of technology is becoming so common that its within the reach of the hobbyist.
Thats what the Germans and I thought 3 years ago. Yikes. perhaps were slow
Brilliant machine. Brilliant results. Kudos.
All these armchair civil engineers out in the comments smh
This makes a lot more sense to me than all this hype about 3d-printed cars/guns/hearts etc, basically because we already build in homogeneous materials such as concrete.
Fiber reinforcement between the layers would make this technology compelling. Reusable support material would be pretty cool too. Maybe a PE or PP in a PU foam slurry.
This CAD program is easy to use. What that castle is missing is the reinforcement( the metal studs) it won’t last like that
I think he could incorporate reinforcements of metal to strengthen it, and lift it with a crane. He could also add fiberglass to the mix for strength. An inner and outer wall would leave space to insulate, and run the wiring and plumbing. There is an additive for moisture barrier.
Awesome Andrey, tnx for sharing it with the world....!!!
Try using foamcreate, by mixing Drexal foam with concrete. It comes out very light, in fact it floats in water once hardened. 3 times the insulation as concrete and it's even stronger! Plus with each bag of concrete it doubles the batch. Look up TH-cam: Air Crete Dome Homes. MUST LOOK UP VIDEO, IT WOULD CHANGE THE OUTCOME OF THE CURRENT PROJECT TO MAKE IT ECONOMICAL.
that's amazing! now you need foundations and some reinforcement, great work 👍
22 brick salesmen disliked this video
*****
not too many visionaries among the brick salesmen, I guess
+atenrok You could use the right bricks and use this for the mortar. It may reduce the costs of a solid cement device. Hey, how using the same techniques to lay brick and then the cement head fills in the gaps? Would that work?
Chris P
or you can upload the design files into this machine, push the "RUN" button and go for lunch... Your choice.
True Tech LoL... great comment... can't wait to see Italian speaking robot's..lol
atenrok OR you can push run and go to unemployment.
Congratulations on such a great idea man ! .............
Ants and termites use a similar way to construct their buildings
+Helmwall But now we might praise the sun together from our grossly incandescent castle! \[T]/
+Helmwall LOL yup.........houses made of vomit.
Absolutely incredible, Bravo.
I would like to see more of the printer, how the extruder works, etc.
Very cool concept! I'm impressed that you've figured out the consistency and degree of over-vertical curves that can be poured. I do have a couple questions regarding this though: first, have you considered how steel or fibreglass reinforcement could be integrated into pouring with the printer. And second, how does curing time affect the rate of pouring or is the pouring time consuming enough that a constant pour can be achieved?
Thanks! I'm super interested to see what can be done with this piece of tech!
Could do with an articulated arm same as mx3d and perhaps fibreglass or steel reinforced somehow, perhaps by applying fiberglass on top or as a projected plaster layer. if you feed a continuous cloth of steel in there it could be controlleable?
wow man that is awesome to say the least, how long did it take to get the mix right? You sir are a genius. Good luck in the future with your designs. Amazing...
Famtastic job. I wonder though how well the layers stand up if they are put under stress, will the layers slide apart. Seen in the last few seconds of the Vid one of the parts being moved so looks solid enough. I just get the feeling that if you had somethig running from one layer into the other it would make it much much stronger.
This is amazing - the way forward.
Can't believe how amazing this is!!
Had you considered adding dyes to the mix to change the color? Did you fill the space in between the inner and outer walls? I think a spray foam would work well to add some insulation value to the walls. Thank you for sharing.
Simply awesome man!
You could go to a site build a whole complex then bury it. Even print holding tanks for fresh water an waste water. To have a system to recycle the water used. To support a certain number of people.
if I'm not mistaken this was based off a reprap printer but would still love to see the full plans on how to build one
In case of clay plus baker - he could create reinforced walls on the fly. Also. He could use metallic chunks in the mass to get reinforcing too. Also. What doesn"t let to put a wire with fixators in the concreate mass right after the extruder and fold it the way it needs.
I wouldn't mind living in a 3-d printed house. Some of the Apis Cor models looks nice as hell. They're fire resistant, storm resistant, even bullet resistant for some of you living in Chicago. While they might not be good for redecoration, if all you care about is stable living conditions, it's a perfect choice.
Love it! Great job!
Awesome! I wonder though if concrete is the best material for a 3D printed home in terms of strength to weight ratio? Since you have the option of a heated extruder, what about a wood fiber reinforced resin?
Also, have you looked into the tiny house movement to build a livable prototype? If you build it on top of a large flatbed trailer with wheels as a base, then it's not subject to building codes.
The potential for this is astounding. The reinforcement will have to be figured out but I see this being used to make low cost housing.
YOU WOULDN'T DOWNLOAD A CASTLE, WOULD YOU?
+Kevin Cassidy only because we didn't have the means.
Kevin Cassidy lol now you can and if you have a massive 3D concrete printer you can do this too. Although it might take a large amount of storage space on your computer and a big portion of your backyard too......
amazing that they built it by hand too. hauling up those turrets. wow.
Amazing work, I’m sure it’s strong enough the guys obviously put a lot of thought into it
What a great idea ! A couple of years ago I was at a machinery auction , because thats where we buy most of the machines for my shop . There where a row of X Y Z welding robots that went for next to nothing , complete with power supplies and computers , I was sad to think they were going to go for scap metal , but I couldnt think of anything I could use them for , I badly wanted to rescue them . Some one like you could turn them back into gold . I noticed you leave a space between the walls , I take it that that could later be line pumped , and a heavy mess inserted , then theyd be similar in strength to concrete culvert ?
Very impressive and awesome. A true inspiration of creativity
all together built that various building
Your technology is 100% similar to that being use by WINSUN construction company based in Shanghai, China. But they (WINSUN) are a 3D construction specialist for more some time now. Its good to find a fellow American can do the same and practically build it for similar cause using less money and less labor. God job!
Pretty kool...
I've spent alot of time reading up on this and tha mix so far they use is harder, stronger, drys faster then any other mix,. Pretty must makes straight stone was dry and how it's done, reinforcements are not needed... But time will tell if it holds true.
looks Very smooth
This is in Shoreview? Holy crap, I live like 15 or 20 minutes from there. Minnesota represent!
Great work!
This is awesome!
I'm curious about two things:
Does the printer mix its own cement as needed, or do you have to keep mixing and climbing ladders to refill it?
Also, as the "wet" layers build up, have you had any issues with the added weight overwhelming the not-yet-cured cement's ability to support it? Like having to dynamically slow down the printing process to allow the previous layers time to solidify before adding more layers?
+Dosbomber They either are dead or unable to write comments in English.
+Dosbomber looks like he waits for it to dry, or he does have to refill, and by the times thats done, its cured enough to support it, the coloring shows that
jeremiah hintz
I see the coloring, but it looks like there's about 10 layers that are still wet (darker). I was wondering about how much weight those wet layers can support before it starts to sag.
Dosbomber yeah, maybe the mix is lighter
+Dosbomber maybe he does it a couple layers at a time
Great design! What would you say the cost ran you per square foot?
Well... how do you rebar it tho? Concrete is perfect for heavy compression projects but the tensile strength is really very poor. (in non leymans terms: Its great as a pillar but cant be used unsupported for longer stretches without serious breakage. Like a 5 meter span between two pillars would make a 20cm thick concrete floor break very easily).
Zipp4, be quiet. We want unreinforced masonry, people killing housing just like the 3rd world.
Have you considered building plumbing into the walls to decrease production time? I'm currently in the process of building a desktop 3D printer do you have any tips about programming the printer? What kind of control process are you using?
Beautiful, thanks for sharing....
it probably wouldn't be too difficult adapting reinforcements you could just change the printing patterns maybe make a different tip pour easier might not even have to change the consistency of the concrete
How many layers can you do at a time for the castle roof without falling in on itself?
Just mix in some fiberglass and it's reinforced. Also it would be cool to have a moat around it and a small draw bridge. No crocks though.
aw,...the crocs are the best part.
I was wondering about that because cement works great in compression but not in shear loading - thus in an earthquake you would have a lot of VERY heavy debris falling on you, along with the fact that concrete is a poor insulator.
This is cool. Without any kind of reinforcement such as rebar I can see this cracking due to weather. Maybe some kind of fibers are mixed with the cement?
Andrey Dziękuję że ulepszyłeś technologię budownictwa. Jaro
Even more accurate than a prusa ...
lets videotape the telly!
This is cool as heck.
Андрей, а прямоугольные оконные проёмы как проходятся? Я не увидел там никаких перекрытий.
You need a 3D brick setting machine to follow behind it LOL
This is amazing!
I wonder if you had some sort of flap on the side of the nozzle hanging down if you could smooth the layer lines at the same time...
That is mind blowing. He built that machine from scratch! The applications are endless!!!
Just another thought on the uses for a device like this.... 3D printing has opened a lot of doors previously unavailable because of how finely it can create structures, not just the macro structure of the wall, but build a wall with an internal structure, say of triangles, polygons, etc.
What do you think the possibility is of devising an internal structure to walls that can create equal or greater strength, while greatly reducing the amount of raw material used?
+Dan O'Connell that's already been done in large scale prints, this particular structure just doesn't use it. It's just as doable as it is in small scale prints.
As a former concrete pump and 3D printer owner….combining high tech with Portland is a tough bedfellow.
Very nice to watch it working properly, however. ;-)
No comment on rebar …. but what about the building inspector?
Perhaps a machine that chases those guys back into their rigs?
Problem - previous layer is not set up before next layer goes on and if concrete is mixed to set fast - it will set inside the machine.
Solution - extruder also "SQUIRTS" a line of hardener that will initiate the concrete's setting reaction.
Please let everyone know if this is already a part of the technology.
Thank you so much for your work.
Harold
It will probably outlast his wood frame home by many decades, if not centuries.
Lol a construction crew just shows up to start stacking. Not much tools required. So much potential!
Great prototyping! May as well print a winch and tackle while your at it...Hate to sprain a back on one of your neighbors there.
Wouldn't squared off or shaped nozzles give a better exterior finish? Or a following rubber blade to spread the bead out more? I actually invented this in my head 30 years ago.
+Dean Winter Probably but sharp corners would complicate things
Now all you need is the Karate Kid to sand left, sand right, but maybe in another 50 years they make them as smooth as a terrazzo floor at Hoover Dam?
I find it incredulous that people with concrete printers dont bother to use a float of any kind to clean up the job.
You know, I didn't see any form of steel reinforcement, and it looked like mix had zero rock in it too. Infact, the mix looked like it was a grout or mortar type mix that was really dry. What would the tensile strength of that be compared to regular old concrete poured with steel reinforcement in it?
Add some mica flake to the outside mix! Or color powder!
excellent work
You know what this could really use? Some modular parts that the concrete could be poured into to give them a nice smooth look; it wouldn't even need to be all that hard, and could be made out of anything from metal to plastic. Now i wonder where you could get some of those from~
That is so cool. But in the town we live in the city would shut you down, they would say it don't follow building codes. And before you can do any thing like that they want a lot of money for a building permit. Coal Valley IL. sucks.
Unless you've got the lost recipe for ancient Roman Concrete perfected, you need some type of reinforcement matrix between the layers or in the mix. Because obviously, having pre-formed rebar structures sticking out would interfere with the nozzle path.
Personally, I don't like the layered look. It messes with my senses in a way. I can't describe it. I'd have to go back and smooth everything out or fill in. Thus creating more work for myself, that the 3D process was trying to eliminate.
TheBikerScout Yeah, but BFD, right? Meantime, you've got your castle.
And I'm thinking mud mixed with straw is used to make huts - it all depends on the dimensions. It might be possible to use any fibrous material in the mix (the stronger the better) if you have coservative proportion of thickness to height. Stuff that stands for centuries. Eons, even.... Can't knock it down.
TheBikerScout It's for fun. Not a real castle to withstand seige (or earthquake). I'm sure Disney doesn't expect to build a real house out of it. Maybe just some quick disposable theme parks.
I realize this particular project is just for fun, and it's structural integrity isn't that critical. BUT... this is also a product showcase. Something that can more than likely be adopted to a larger scale. I'm sure the designer of the system hopes that happens. Otherwise it's a lot of work and investment just to make a kids sized castle.
So that means, that there still needs to be a reinforcement matrix that needs to be worked out before this can become someone's home or structure.
It's possible that small rebar can be pushed into the layers as the print head moves on. But that takes away from the set-it and forget-it building approach. And therefore slower than traditional slab tilt-up, or pour in place methods.
We are going to be building a 55ft diameter dome home, and using a special mix called shortcrete that can be sprayed vertically without sagging. But being blown inside an inflated air form can be done in a matter of hours. Printing a dome structure would take many days. Which do you think would cost more? Everyone charges by the hour.
TheBikerScout The fact that people have been trying to print "real houses" is not news. The fact that this guy did a castle in his back yards is news. This has been the subject of university research for many years and I'm sure the topic has come up. They just didn't think of building castles in back yards or disney land as a potential market. lol
And "dome homes" are the most impractical residences. It's more like a hippie novelty than anything that will be adopted in large scale.
Maybe an old Buckminster Fuller Geodesic Dome is hippieish... but a Monolithic Dome made out of concrete is awesome. If you've ever toured any of the nicer examples, they have a great "feel" to them when you step inside. Plus, our ground floor is 7 feet below grade, and the average temperature will fluctuate between 68°F and 72°F. Amazing natural light floods large areas without harsh angles and shadows. Earthquake and Hurricane proof. Won't rot, creak or be susceptible to in-the-wall critters like termites, rats or roaches.
Don't knock something until you've got first hand knowledge of it.
very cool stuff. I'm wondering if there would be a way to incorporate rebar though. Without it, I feel like the structure wouldn't last as long
+Steven Saunders I was thinking the same thing. After some consideration I had come to think that the rebar would have to be inserted buy the extruder head as it went along. Another way I guess was to have the extruder tilt and squirt it around the rebar. Also, if the geometry was such that it was self supporting rebar may not be necessary. You have fine control of the concrete layering and thus can make the exact shape. An engineer or architect could do amazing things with that. They were building things with concrete well before rebar.
There appears to be open trenches on the top. Is there a drainage system built into the design to address that. Also, I'm curious how expansion and contraction will affect all those seams after a few cycles of frost