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Why 3D Printing Buildings Leads to Problems

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  • เผยแพร่เมื่อ 29 พ.ค. 2024
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    In this video, we explore the hurdles of 3D printed houses and the strange, sometimes impractical results. Companies worldwide are striving to make this technology scalable, affordable, sustainable, and appealing to those who prefer traditional homes. If successful, it could revolutionize how we design and build structures. But will it?
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    Stewart Hicks is an architectural design educator that leads studios and lecture courses as an Associate Professor in the School of Architecture at the University of Illinois at Chicago. He also serves as an Associate Dean in the College of Architecture, Design, and the Arts and is the co-founder of the practice Design With Company. His work has earned awards such as the Architecture Record Design Vanguard Award or the Young Architect’s Forum Award and has been featured in exhibitions such as the Chicago Architecture Biennial and Design Miami, as well as at the V&A Museum and Tate Modern in London. His writings can be found in the co-authored book Misguided Tactics for Propriety Calibration, published with the Graham Foundation, as well as essays in MONU magazine, the AIA Journal Manifest, Log, bracket, and the guest-edited issue of MAS Context on the topic of character architecture.
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ความคิดเห็น • 1.8K

  • @1pcfred
    @1pcfred หลายเดือนก่อน +1445

    You know what a bad idea is? A bad idea is pouring concrete without any reinforcing. Now that's a bad idea! Even some chicken wire in the mix makes concrete so much stronger. Take it from a guy that's jackhammered up more than his fair share of concrete. You want steel reinforcing in your concrete. That fibermesh is horse crap. Know what I'm not seeing in these printed houses? Reinforcing.

    • @cohibaguy4981
      @cohibaguy4981 หลายเดือนก่อน +33

      So true!

    • @brayoungful
      @brayoungful หลายเดือนก่อน +115

      Lol, I am a seismologist and was thinking the same thing.
      Honestly, some kind of resin/plastic 3D printed material would probably work since it's flexible, though I don't know about the longevity. Or maybe figure out how to 3D print what are essentially cinder.blocks (with open spaces), and then maybe you can add rebar down the center and pour in a slurry at the end to reinforce it?
      There are also metal 3D printers... Could have multiple printer heads laying interleaving layers of concrete and metal (I assume actually making such a system would be practically complex).
      Honestly, mass produced prefab "modules" probably makes more sense. Attach modules together as the "skeleton" of the house, and then the facade can be whatever you want to customize its appearance.
      I assume there are construction professionals (not me) that are thinking about these sorts of things.

    • @ytSuns26
      @ytSuns26 หลายเดือนก่อน +91

      Tell the Romans that , there stuff is still around . No steel in centuries old structures . Steel guarantees a limited structural life span. Reenforced concrete 100 years max.

    • @cohibaguy4981
      @cohibaguy4981 หลายเดือนก่อน +145

      Current concrete and ancient concrete, completely different things. Besides, the walls of the structures from the Roman era are feet thick, not a few inches.

    • @1pcfred
      @1pcfred หลายเดือนก่อน +74

      @@ytSuns26 the Romans were working on a different timetable than we do today. Change is more rapid now. It is pointless to build something that'll outlast its usefulness. There's very little from 100 years ago that we want now. 100 years from now they won't want what we have today either. That's because they'll be doing different things different ways.

  • @joranbooth5529
    @joranbooth5529 หลายเดือนก่อน +1708

    I've worked closely with a leading concrete 3D printing company for several years now, so I hope my insight into the actual construction process provides some perspective.
    First, one clarification: There is no gravel aggregate in 3D printing concrete. It is only sand.
    You're right that the vertical integration is very strong in this industry, but there is already internal pressure to break that up. I expect in 10 years or so, you'll see more open-access tools available to architects and construction companies alike. I can't be too specific and honor my non-disclosure agreements, but there is recognition that the ability for architects to play with shape is very limited for now, which also limits the primary advantage of concrete 3D printing over other methods: complex shapes cost the same as simple ones. The primary reasons IMO for the vertical integration is 1) that there has been a high learning curve for the industry and 2) the business case relies on minimizing labor costs and the strategies for dealing with that are still being prototyped. Normally trivial things like laying foundations, running plumbing, tying roof timbers into the frame, and lintels as you mentioned, are difficult for concrete 3D printed construction. It's only in the last year or so that acceptable, repeatable solutions have been identified for most of these and are finding their way into standard design practices. But even then, there are still maybe 5 or 10 years more of on-the-ground construction needed to establish best practice. It's not too different from the way building materials and building science radically changed in the 1980's, leading to a decade of extremely poorly built houses prone to water damage and short lifespans. It wasn't until maybe 20 years after that best practices for high-quality construction had been standardized.
    I would push back on the lack of repairability, though. This has always been an issue with concrete construction, and it's likely to become increasingly common for plaster or stucco finishes to be applied to internal walls, allowing for intrusive renovations to be reintegrated. Structural stability is not likely to be an issue since all walls have reinforcement every half meter anyway and often exceed building strength standards by an order of magnitude. Further, virtually all concrete 3D printing for now is slab-on-grade construction, which already has the same repairability issues you mention but is already widely adopted and has best practices for dealing with things like electrical and plumbing repair. I would also point out that the timber frame construction that we love so much is largely an anomaly unique to the U.S. where wood is abundant and cheap. Concrete 3D printed homes have the (so far unrealized) potential of being many decades or centuries more durable than frame buildings, which will change the design requirements that often contribute to design choices that later need renovations and repairs.
    I would also push back on the criticism of how windows and doors are seated in the concrete homes. I don't doubt that many early concrete 3D printed homes were sealed with silicone only, but 1) the gap between windows and walls is already standard in frame construction and addressed with shims, spray foam, and trim and 2) the 3D printing companies have already started to adopt the same building techniques used by frame construction.
    Echoing much of what you said, IMO concrete 3D printing has a high potential for unique design that won't be unlocked until architects are given freer access to the tools and pre-fab construction is a necessary companion to this industry, but there is still a lot of building science that is being worked out. There are already some serious advantges, such as all walls having a native R40 insulation rating, but these will be tempered by the inherent limitations. I don't expect to see a rapid adoption of 3D printed construction for another 5 or 10 years and for the U.S. market share to cap around 20% and primarily remain in the residential and light commercial construction spaces. I also think that the current bare-wall aesthetic will fall out of favor out in that timeframe since it will prove difficult to clean. I also expect that environmental costs will remain high as long as cement production relies on fossil fuels and concrete aggregate relies on mined sand. I also expect that a future use case for heavy construction is using 3D printing to create forms for much thicker concrete constructions, particularly for foundations, buttresses, and pillars, such as you see in airport construction.
    Anyway, thanks for the video, and all the best!

    • @smashino
      @smashino หลายเดือนก่อน +102

      This was a great comment, addressing a lot of the things I also thought about. Thanks for the insight!

    • @Ateliermartinon
      @Ateliermartinon หลายเดือนก่อน +52

      Excellent information, thanks for taking the time to comment.

    • @garrykanter5773
      @garrykanter5773 หลายเดือนก่อน +19

      Thanks!

    • @andrewmalcolm79
      @andrewmalcolm79 หลายเดือนก่อน +54

      Yup. Those internal 3D printed surfaces look like they're begging for some of that aerogel lime plaster or plain old dot and dab drylining. I've seen people build shotcrete boat hulls upside down and then roll them over. They use a stainless mesh, like rebar in regular concrete, then seal it with paint. I've also seen robots tying rebar together on job sites. Will we see these two robots working in tandem to, first, tie a steel frame together then, second, fill it with concrete? A third robot to do the lime plaster?

    • @StephenCoorlas
      @StephenCoorlas หลายเดือนก่อน +21

      Yes - To all of this. Thanks for taking the time to offer this info.

  • @orinblank2056
    @orinblank2056 หลายเดือนก่อน +613

    While I find 3d printed houses fascinating, it's kind of annoying to see it billed as a way to fight the affordability crisis as if the cause is the cost of construction, rather than an economic issue. The price of housing is artificially inflated by external economic pressures, such as houses not being listed to drive up the price of other houses due to a perceived lack of availability

    • @artichoke60045
      @artichoke60045 หลายเดือนก่อน +15

      I don't know of anyone who wants to sell their house, refusing to list it so as to improve prices in the neighborhood.

    • @carsondinwoodie5840
      @carsondinwoodie5840 หลายเดือนก่อน +41

      Worse than that. Houses are priced by proxy, we have real estate companies arbitrarily posting houses 115% higher than their curb value simply because the one down the street is charging 115% the curb value and they do it with a smile knowing they will get the sale eventually as housing prices increase.

    • @odeaus
      @odeaus หลายเดือนก่อน +35

      Zoning laws is the main issue. Not enough dense housing in places people want to live. Supply and demand basically. NIMBY don't want it and companies don't want it because it will bring values down. Until the majority agrees that housing is a right and not focused on it as a wealth building tool housing will stay expensive

    • @TheGuyThatEveryoneIgnores
      @TheGuyThatEveryoneIgnores หลายเดือนก่อน +19

      Housing keeps going up in price, because local governments keep increasing the assessment values in order to collect more property tax money. When people sell their houses, they expect to get at least their houses' assessment values. New construction is priced in accordance with the market value of existing houses, if not more. Everyone is trying to get the most money they can. Greed.

    • @fishslappr
      @fishslappr หลายเดือนก่อน

      100%

  • @Tritium21
    @Tritium21 หลายเดือนก่อน +237

    I have always had a problem with the hype around 3d printed structures, especially residential structures, especially in the US. For a 3d printed house you still need a poured foundation, you still need interior finishing, you still need a roof, you still need MEP, the list goes on and on. You still need to do the rest of the house. What does 3d printing automate away? the framing and sheathing - because to be clear - the vast majority of houses are wood framed, and will continue to be. Now, what is the absolute fastest part of building a wood framed house? the framing and sheathing. 3d printing replaces the fast, easy, low skill part of home construction with something marginally faster if at all, extremely complicated, unforgiving, and requiring highly skilled workers if not engineers on site. For home construction, 3d printing is *silly*

    • @LeeGaudi-vb9ev
      @LeeGaudi-vb9ev หลายเดือนก่อน +8

      It replaces high skilled and low skilled jobs. It depends on the design. Automation at any degree becomes useful when applied right. What does AI replace currently? Customer service on websites sometimes considered a low skill low pay job. Great well that can be allocated to other areas now, and that employee can focus on other tasks instead. Recently completed a 3D printed home in California. A duplex. We could print the roof but we didn't in this particular job. Doing the MEP was easy, foundation can be printed and interior finishing can be done in a day. Now at scale it really starts to work as the printer can finish a couple houses a week, then the contractors can come and do the MEPs all in a row. There are definitely some kinks to work out in the process and approval but the US is one of the few places who still do wood frame. Its largely about material cost and understanding. Go to AUS and see everything still being done in Brick.. Also 3D printing isn't only concrete. More and more materials pop up all the time. From clay, adobe, hemp to stone. It is also about customization, freedom of form and design.

    • @PTS1337
      @PTS1337 หลายเดือนก่อน +31

      That's probably because the technology is not meant for consumers but to lure investor money.

    • @brianhirt5027
      @brianhirt5027 หลายเดือนก่อน +6

      Incorrect. 3D printing has capabilities that stickbuilts dont. Especially in areas particularly prone to hurricane & tornados. If you doubt the market potential or usecase applicability just take a gander at what's still standing after a hurricane sweeps through. Or heck, in any given centenial flood plain construction put to the test. Stickbuilts can't just be dried off and refurnished. Concrete structures can be, as long as the aggregate substrate wasn't washed from underneath it With climate shift exaggerating those risks AND vastly expanding their potentially area of impact I think you'll quickly note that concrete printing a house makes more sense than rebuilding a stickframe.

    • @M3rVsT4H
      @M3rVsT4H หลายเดือนก่อน +20

      @@brianhirt5027 Don't underestimate the role of rebar in those things that stand up to hurricanes. Reinforced concrete is impressively strong. A few ton of splooged grout will not compare favorably.

    • @Tritium21
      @Tritium21 หลายเดือนก่อน +13

      @@brianhirt5027 The structures you speak of are not printed, they are reinforced and poured in place. Cartesian motion systems used by these house scale 3d printers, and even corexy for that matter, cant cope with the rebar that did all the work. remember that concrete has virtually no strength in tension or torsion, which is what earthquake and hurricane resistant structures are designed to withstand. its the rebar doing all the work, and the motion systems simply do not allow for those to be in place. It is also telling that the precautions in traditional wood construction against earthquake and high winds are to add steel reinforcing, and not to fill the walls with concrete.

  • @Phol
    @Phol หลายเดือนก่อน +594

    We already have quick and reliable building process, it is called "prefabricated elements"

    • @1pcfred
      @1pcfred หลายเดือนก่อน +33

      I worked for a masonry contractor that was pretty quick and reliable. They'd lay a guy off every day just to keep the rest of the crew on their toes. That's how they kept up the pace. If you wanted to work then you'd better work fast.

    • @exchangAscribe
      @exchangAscribe หลายเดือนก่อน +54

      @@1pcfred thats fucked up, but money is what matters right?☺️

    • @1pcfred
      @1pcfred หลายเดือนก่อน +11

      @@exchangAscribe construction is a money racket. Nothing gets done for nothing.

    • @JamEngulfer
      @JamEngulfer หลายเดือนก่อน +8

      How are you going to prefabricate a brick wall that interleaves with every other wall? Or transport a prefabricated section made of brick?

    • @Kenionatus
      @Kenionatus หลายเดือนก่อน +44

      @@1pcfred That sounds like a company culture issue instead of a manufacturing process issue.

  • @henryglennon3864
    @henryglennon3864 หลายเดือนก่อน +1367

    Hooray for automating the least complicated, least expensive, most reliable part of the construction process! You did it, Tech Bros!

    • @henryglennon3864
      @henryglennon3864 หลายเดือนก่อน +107

      @@rok1475 twas ever thus. Supply chain issues cause WAY more problems in the cost and speed of construction than masons and framers.

    • @joranbooth5529
      @joranbooth5529 หลายเดือนก่อน +55

      There is much more nuance to the cost structure, and the company I work with consistently costs much less per square foot than frame construction. The companies in this space are well aware of the costs, and while the marketing focuses on the walls, the actual business case lies in the interfaces between the walls and everything else and automating as much of that as possible. That said, though, cheap labor eliminates the market advantage, limiting most concrete 3D printing to high-cost-of-living areas for now.

    • @legionjames1822
      @legionjames1822 หลายเดือนก่อน +32

      People are trying to solve the housing crisis. What housing crisis i hear you say? Give it 5 short years and you will see, baring an exponential uptick in home building. Given the current purchusing power of a dollar, the hopes of buying homes for future inhabitents of the world, who are not rich aka the 99 percent, is dismal. A massive increase in production ability would then drive down cost. This is how it works tech drives down cost, without that were boned

    • @henryglennon3864
      @henryglennon3864 หลายเดือนก่อน +156

      @@legionjames1822 I know what the housing crisis is. I'm an architect. The housing crisis is caused by economic and social forces, and it won't be solved by building concrete walls slightly faster.

    • @legionjames1822
      @legionjames1822 หลายเดือนก่อน

      @@henryglennon3864 you aint seen nothing yet. Besides 3d printing a home requires a top down systemic approach of the ENTIRE home building process ahead of time. Its not a practice in wall building, thats a nice pigeon hole tho if thats what anyone is looking for. The dollar is devaluing by 7 percent year over year. All asset values are through the roof. Homes are the primary asset in anyones portfolio of assets. Therefore the values will continue to baloon, pricing LOTS of people out of home buying. The future needs future soltutions.

  • @dojokonojo
    @dojokonojo หลายเดือนก่อน +165

    The most expensive part of a house is not the material cost of a house but the land that it sits on. A burnt out abandoned house in California was sold for $1 million.

    • @awolffromamongus875
      @awolffromamongus875 หลายเดือนก่อน +6

      This is Australia.

    • @ricardokowalski1579
      @ricardokowalski1579 หลายเดือนก่อน +6

      Japan is similar. The house has no value

    • @filonin2
      @filonin2 หลายเดือนก่อน +5

      On how many acres and where? Land is cheap if you don't need a lot or don;t need to be close to a city. It's $200k for a 160 acre plot 1 hour from Sacramento, right now.

    • @ricardokowalski1579
      @ricardokowalski1579 หลายเดือนก่อน +16

      @@filonin2 if you calculate the cost of throwing utilities, and the increased freight of one extra hour drive... you will quickly understand that "cheap" land means "hidden costs".

    • @TheGuyThatEveryoneIgnores
      @TheGuyThatEveryoneIgnores หลายเดือนก่อน +6

      The cost of the land depends on where it is. In places with high demand, the cost of the lot could be the most expensive part. For example, a $1 million dollar house in southern California could really be just a $200,000 house on an $800,000 lot. Build that same house out in the middle of nowhere and the lot may only be $20,000, but then you may need to drive an hour to get to a job or decent store. Also, you will probably have to drill a well and put in a septic system.

  • @TheGreatestJuJu
    @TheGreatestJuJu หลายเดือนก่อน +60

    All those groves to collect dust on interior and since it’s a rough texture, cleaning would be a nightmare

    • @jardinero79
      @jardinero79 หลายเดือนก่อน +5

      That's what I was thinking about, plus spiders would love nesting.

    • @jakeaurod
      @jakeaurod หลายเดือนก่อน +14

      Dust is bad, grease from cooking would be worse.

    • @imchris5000
      @imchris5000 หลายเดือนก่อน +9

      it would be simple to plaster it with structolite and veneer plaster to look like a traditional wall and stucco on the outside

    • @troyshannon644
      @troyshannon644 หลายเดือนก่อน

      Metal studs could be screwed directly to the interior and exterior walls, and finished conventionally with drywall board, siding, and wood in much the way concrete or block buildings are finished now

    • @crash.override
      @crash.override หลายเดือนก่อน

      Doesn't stucco have the same problem?

  • @oglieotr8256
    @oglieotr8256 หลายเดือนก่อน +371

    I do not understand 3D printing houses. Wouldn’t pre-fab construction be better looking, more efficient and environmental?

    • @Matelight_IT
      @Matelight_IT หลายเดือนก่อน +45

      I think it would be, with enough of parts/components it would be like Lego, instead of building brick by brick it would be wall by wall.
      I think pre-fab have bad reputation because it is cheap

    • @woopeeallan
      @woopeeallan หลายเดือนก่อน +11

      This is technically technology for other places like space. Not really for the local people on earth.

    • @JeffDM
      @JeffDM หลายเดือนก่อน +7

      Prefabs have a connotation of being cheaply built. I recall you can't even get the same kind of financing.

    • @gatergates8813
      @gatergates8813 หลายเดือนก่อน +5

      ​@woopeeallan gonna ship all that water and cement to Mars huh?

    • @Adierit
      @Adierit หลายเดือนก่อน +6

      i mean ngl if you want looks you can just slap stucco or plaster right over the exterior/interior of this i don't see anything stopping you from doing so its obviously just cheaper, which is probably their whole selling point in not doing so as its not required to have a functional home

  • @Bill53AD
    @Bill53AD หลายเดือนก่อน +197

    You missed a bigger issue, building codes and inspectors. Being one of the earlier 3D concrete printer developers our biggest issue was the building inspectors here in the US. Good video.

    • @Jack-ne8vm
      @Jack-ne8vm หลายเดือนก่อน +10

      Resistance to change.

    • @the_expidition427
      @the_expidition427 หลายเดือนก่อน +1

      It works for China not for everyone

    • @Kaz-qz2oq
      @Kaz-qz2oq หลายเดือนก่อน

      How does one get into the business of industrial 3d printing like this?

    • @brianhirt5027
      @brianhirt5027 หลายเดือนก่อน +1

      @@Kaz-qz2oq There is a ton of upfront costs, and most 'printers' are one-ofs custom jobs. There's no commercial manufacturer of the 'printers' yet i'm aware of.

    • @ytSuns26
      @ytSuns26 หลายเดือนก่อน +1

      Protection racket

  • @alexanderx33
    @alexanderx33 หลายเดือนก่อน +205

    Unreinforced concrete is hell for seismic. This would never be approved in places like california, where mass production of housing is most needed.

    • @damonroberts7372
      @damonroberts7372 หลายเดือนก่อน +33

      Also problematic on sites with expansive clay soils. Seasonal swelling and shrinkage of clay soils account for a lot of structural damage.

    • @brianhirt5027
      @brianhirt5027 หลายเดือนก่อน +8

      It's internally reinforced, I think. If it's a biggie sized version of my home 3D printer there's ways to 'reinforce' your builds by choosing certain internal geometries depending on the intended usecase application.

    • @jackhydrazine1376
      @jackhydrazine1376 หลายเดือนก่อน +5

      If rebar could be 3D printed into the concrete that might possibly work.

    • @brianhirt5027
      @brianhirt5027 หลายเดือนก่อน +8

      @@jackhydrazine1376 Yup. There's one inflil type called gynoid in particular would make the final superstructure several times more solid than a brick & mortar. It's akin to solid body chassis in car construction. Since it's all cast together there's no 'joints' for groundshock to vertically sheer. The whole houseframe jiggles as one contiguous solid.

    • @ytSuns26
      @ytSuns26 หลายเดือนก่อน +6

      No problem adding steel. Adds to the labor and material costs a bit.

  • @JohnnyTurbo87
    @JohnnyTurbo87 หลายเดือนก่อน +103

    I used to work as an engineer for a major 3D printing construction company and this analysis is quite accurate. 3D printed construction is a nail looking for a hammer and will never be able to reduce cost or build time of single family homes.
    The printed structural elements of a home only equate to ~20% of the total cost of house so in order to reduce the cost of a house by 10% printing will need to be able to halve the cost of stick framing which is impossible.
    And not to mention the gigantic CO2 footprint that is associated with the production of cement.

    • @mfpears
      @mfpears หลายเดือนก่อน

      CarbonX

    • @mfpears
      @mfpears หลายเดือนก่อน

      Wright's Law

    • @brianhirt5027
      @brianhirt5027 หลายเดือนก่อน +4

      Used to be that gypsum drywall was a hammer looking for a nail, too. It too was spendy, initially. It took a while for folks to shift from plaster walls to gypsum drywall. Other than in restoration projects I challenge you to find plastering it in any sort of modern construction project use today, though.
      Perhaps you should be a bit more cautious about waiving around that 'never' flag so hard.

    • @timothyblazer1749
      @timothyblazer1749 หลายเดือนก่อน

      Stick framing is just about the worst way to build a house we have invented. Timber framing is orders of magnitude superior, if building in wood. Both in strength and longevity.
      Secondly, nobody cares about how long it takes, within reason. What matters is price/performance. And in hot climates, this method will work well, given the thermal mass of the walls.

    • @brianhirt5027
      @brianhirt5027 หลายเดือนก่อน

      @@timothyblazer1749 I think concrete printers do have a significant edge in certain climates, most especially in areas prone to natural disasters. If a printer laid superstructure & a manufactured home builder supplied veneers & facades to hang on that superstructure substrate the resultingbuilt-to-last power combo could literally rebuild entire towns wrecked in natural disasters with months. As it stands it can ebe upwards of five to seven YEARS for local recovery.That's only likely to get worse with hardly any youngsters entering the trades anymore.

  • @subnormality5854
    @subnormality5854 หลายเดือนก่อน +100

    Imagine waiting and waiting for your dream house to be built, and you end up with a big rendering error intead

    • @imchris5000
      @imchris5000 หลายเดือนก่อน +2

      it happens with traditional concrete forms too if things are not braced correctly. its called a blow out I worked a job building the floor forms for a 15 story building and we had 2 major blow outs. having the forms shift and then 20+ truckloads of concrete start pouring through a hole makes a huge mess into a place that is typically very tight with shoring for the pour. it was always all hands on deck shoveling the wet concrete into buckets and passing them down a man line till it can get to a forklift.

    • @alf3071
      @alf3071 หลายเดือนก่อน +1

      or spaghetti house

    • @jcrowley1985
      @jcrowley1985 หลายเดือนก่อน +1

      Low ink warning !

    • @NightmareRex6
      @NightmareRex6 หลายเดือนก่อน

      3d print an entire atual red ERROR building like from source engine

  • @peachezprogramming
    @peachezprogramming หลายเดือนก่อน +278

    We could make a bunch of these parts like walls in factories but we made it illegal to put modular homes in 90% of America

    • @astronemir
      @astronemir หลายเดือนก่อน +84

      Regulatory capture is the bane of the American economy.
      It’s the reason why healthcare is so expensive. Why government spends so much money for so little output. Why so many industries are monopolized WTH inferior versions..

    • @lunaris69
      @lunaris69 หลายเดือนก่อน +16

      @@astronemir oh I've never heard the word regulatory capture before

    • @toomanymarys7355
      @toomanymarys7355 หลายเดือนก่อน +24

      Modular homes are legal everywhere. Modular isn't manufactured.

    • @imveryangryitsnotbutter
      @imveryangryitsnotbutter หลายเดือนก่อน +10

      The current age of the United States is older than the median lifespan of human empires by some estimates. This country is on borrowed time, and it shows.

    • @johnnyonthespot4375
      @johnnyonthespot4375 หลายเดือนก่อน +10

      The shipping costs of the built parts are what kills this idea & have you SEEN how modular homes are built ?? I have worked on many and they are not built well just built fast.

  • @oskarbud525
    @oskarbud525 หลายเดือนก่อน +22

    This sounds like a wonderful idea when you know nothing about residential construction.

    • @danime1941
      @danime1941 9 วันที่ผ่านมา +2

      My man said you can't lay bricks when there is no bricks underneath it he never heard of arch's domes and vaults

  • @PraxZimmerman
    @PraxZimmerman หลายเดือนก่อน +53

    I don't know about the who country, but put here the permiting, zoning, and land costs are what's making housing unafordable. Once you got the land and permission to build, the rest is relitivly cheap and straightforward.

  • @kacperwoch4368
    @kacperwoch4368 หลายเดือนก่อน +155

    2:42 You can, it's called flat arch. A somewhat forgotten technique that was very common in 19th and early 20th century. It works for spans that are 4 feet or less but it's still the majority of windows and doorways. Or you can, you know, span everything with a segmental arch like we had been doing for the past 2000 years.

    • @henryglennon3864
      @henryglennon3864 หลายเดือนก่อน +6

      I wouldn't be sure you can print a flat arch out of concrete. This process creates a homogeneous structural member. The premise of the masonry arch is that load is directed in compression from masonry unit to masonry unit. I'm not sure the internal load would be distributed the same way in a printed concrete wall.

    • @kacperwoch4368
      @kacperwoch4368 หลายเดือนก่อน +48

      @@henryglennon3864 I was talking about bricks, he said you cannot span an opening with bricks without a lintel.

    • @ZuperZocker
      @ZuperZocker หลายเดือนก่อน +6

      A quick search suggests we've been doing brick archways for at least 3400 years. But I always think of Moorish architecture for brick archways

    • @henryglennon3864
      @henryglennon3864 หลายเดือนก่อน +3

      @@kacperwoch4368 fair enough. That said, in America, code might prevent it. Which is stupid, but American building codes really do not like unreinforced masonry. For example, I'm not too sure how the printed walls would be reviewed, unless they have a special variance.

    • @StephenCoorlas
      @StephenCoorlas หลายเดือนก่อน +7

      Yes, get ready for a massive reemergence of arches in architecture. I'm here for it.

  • @agodelianshock9422
    @agodelianshock9422 หลายเดือนก่อน +35

    There's a reason we don't just pour concrete and call it a day already.

  • @Comm0ut
    @Comm0ut หลายเดือนก่อน +12

    This is 3D concrete pouring which is referred to as "printing" for ADVERTISING purposes. Precast concrete is old news and arguably a much better system which is why it's in wide use.
    The printer is basically a CNC concrete extruder.

  • @sicko_the_ew
    @sicko_the_ew หลายเดือนก่อน +16

    From fairly limited experience (being involved in building five concrete brick houses/ cottages), one thing that has never made sense to me about 3D printed buildings is that in terms of cost and construction time, the walls and roof aren't such a big deal. What costs the money (and time) is the finishes and fittings, which don't seem to feature in the design software. Maybe this is just so for some places, and in others, the cost of the walls is the limiting factor. (Else, if you build your cheap walls big, you just have to spend more on expensive fittings that the walls are made to protect.)
    Also, the little crevices inside are not going to make for nice walls. You still need to plaster those (or cover them with drywall). On the outside, all they're going to do is provide a nice substrate for mosses and lichens - which could be great if they weren't quite likely structural hazards, long term).

    • @jamesphillips2285
      @jamesphillips2285 หลายเดือนก่อน +1

      Also they appear to be building single-family homes. R1 zoning is what keeps housing costs high.

    • @dominick253
      @dominick253 หลายเดือนก่อน +1

      I think it's just the first step to fully automated custom houses. First create a system for the foundation and walls. then for the roof. Then use boston dynamic robots for the finish work. One day you will go to a website, or probably just talk to your AI, and design your house. Maybe a week later you would walk in and the robots already moved all of your stuff in and stocked the fridge.

    • @bestdjaf7499
      @bestdjaf7499 21 วันที่ผ่านมา +1

      There are so many issues with that, it just makes no sense.
      Just the equipment. And transportation.
      Who will be fixing it?
      What if concrete is not perfect...
      And you need to build foundation not only for the house, but for the machine too.
      Can't correct any mistakes...
      Btw,
      Nobody is building the brick houses.
      And 4 guys can build a house faster. All you need is a foundation, frame, & drywall.
      And it will be like 100 times cheaper.
      *
      We have been building houses for thousands of years.
      There is no reason to make something more complicated that it needs to.

    • @fluppet2350
      @fluppet2350 10 วันที่ผ่านมา +2

      When my family’s house was being built, 2 things took the majority of the time. 1: the foundation 2: interior
      The frame took a month with a crew of 3 guys working 3 days a week.

  • @erictaylor5462
    @erictaylor5462 หลายเดือนก่อน +10

    One of my jobs as a welder was to inspect and correct the product of our robot welder, and I can say it was not a great welder.
    It had limited use as most of our weldments were not repetitive enough to justify using a robot.
    I only got about 5 to 8 hours of work a week from the robot. That included inspecting the welds and correcting about 10% of the finished parts. A lot of the errors were for parts that were out of tolerance, and the tolerance was pretty high on these things, ± 1/4" when most of the hand welded stuff was between ± 1/8" and ± 1/16"

  • @mattwales2734
    @mattwales2734 หลายเดือนก่อน +8

    I worked maintenance for a 95 year old adobe brick style building. The bricks made the walls anywhere from 14-24 inches thick in places. Adding any new plumbing or electrical to the existing building requires tearing into the wall, or hanging conduit everywhere.

  • @TheBestNameEverMade
    @TheBestNameEverMade หลายเดือนก่อน +33

    It does not take a couple of days to 3d print a home. It takes several weeks for most companies. I believe icon recently got down to a week but all other companies are much longer. Maybe print time, but there is a lot of downtime. They have to let the layers dry.
    A couple of days is just a marketing thing at the moment.

    • @gatergates8813
      @gatergates8813 หลายเดือนก่อน +4

      Meanwhile a regular forming crew takes a day and a half

    • @LeeGaudi-vb9ev
      @LeeGaudi-vb9ev หลายเดือนก่อน

      Depends on the mix you are using and the experience. We can do it in a few days. Just depends on the model and drying time of the materials. 750 sq ft home in 2-3 days is easy once you have the experience.

    • @user-nu1wp4pw9o
      @user-nu1wp4pw9o หลายเดือนก่อน +8

      Concrete doesn't dry; it cures. In warm climates you often need to spray concrete with water to keep it from drying while it cures.

    • @TheBestNameEverMade
      @TheBestNameEverMade หลายเดือนก่อน +4

      @user-nu1wp4pw9o sure cures - seems you knew what i meant, I doubt clarification was necessary. In any case, it needs to get to a certain amount of strength before they can add addional layers.

    • @semibiotic
      @semibiotic หลายเดือนก่อน

      Also, walls printing is only 20% of house building. And other elements created using classic technologies.

  • @graavy
    @graavy หลายเดือนก่อน +9

    Good god that transition to the sponsor segment was smoother than butter on ice

    • @trevorrogers95
      @trevorrogers95 หลายเดือนก่อน

      Like ice cold butter getting spread on cold toast

  • @ChristianBehnke
    @ChristianBehnke หลายเดือนก่อน +19

    I love the concept and don't dislike the texture of the walls, my concerns would be settling causing cracking and moisture control.

    • @LeeGaudi-vb9ev
      @LeeGaudi-vb9ev หลายเดือนก่อน +2

      We usually finish with stucco, and everything is sealed so no moisture issues.

    • @Owen2108
      @Owen2108 หลายเดือนก่อน

      ​@@LeeGaudi-vb9ev The buildings settling would be a bigger issue. Concrete isnt very flexible.

  • @finndriver1063
    @finndriver1063 หลายเดือนก่อน +73

    A big issue is that current methods don't allow dense housing. You couldn't easily (to my knowledge) print a row of terrace houses unless you used a gigantic gantry a whole street long to print all of them at once. The concurrency of modular construction means you can lay bricks for a second house while the first is being fitted and decorated. Currently, most 3D printed housing aims to just be slightly cheaper versions of the same expensive suburban single-family developments, which will not fix a housing crisis.
    I am therefore surprised that construction 3D printing isn't aimed more towards prefab. People often complain about not wanting to live in cookie-cutter homes lacking character and uniqueness. 3D printing sounds good for that. You could talk to an architect about a custom design for one part of the house or some finishing touches that are printed on/off-site, cured, and then assembled.

    • @joranbooth5529
      @joranbooth5529 หลายเดือนก่อน +13

      1) dense housing is definitely an issue, but most gantries also are easily retrofitted to build an entire row. This construction method would allow the printer to make maybe 4 houses at once, put a gap, and then start on the next cluster as the first cluster is being finished.
      2) I disagree that construction 3D printing is good for prefab. A concrete 3D printer will never have the same economies of scale as a well designed set of molds. It's far too slow and sloppy by comparison. Rather, I expect pre-fab to be a symbiotic industry to concrete 3D printing.

    • @hellothere6627
      @hellothere6627 หลายเดือนก่อน

      Building vertically becomes challenging and expensive with traditional methods, but not for a printer. Home and apartments could be printed with 4 floors/homes allowing for dense affordable housing.

    • @finndriver1063
      @finndriver1063 หลายเดือนก่อน +7

      @@hellothere6627 This is a good point, but there's currently a height limit on 3D printed buildings, because they don't use rebar or reinforcing frames.
      That's probably a fixable issue, but currently the tallest 3D printed apartment building has 5 floors (by WinSun in Suzhou), was considered complex and expensive to pull off, and has some longevity concerns. And even then, they prefabricated the parts offsite and shipped them for construction.
      That's why nearly all the 3d-print-in-place buildings in this video are single-storey or single+loft.

    • @ChrisWijtmans
      @ChrisWijtmans หลายเดือนก่อน +1

      We could also live in pods, eat bugs and be hooked up to the metaverse 24/7. You ideas are inhumane.

    • @korcommander
      @korcommander หลายเดือนก่อน

      Yeah, I rather just live far away with space than breathing my neighbors breath.

  • @serafinacosta7118
    @serafinacosta7118 หลายเดือนก่อน +13

    Mr Hicks..
    A few factors against 3D concrete printing …
    1. Cement and concrete walls are subpar as an insulator medium , cold or hot climates. Clay bricks perform way better in any climate.
    2. A builder can’t reinforce the concrete walls with gravel. At best around rebar. So the composite reinforcement on concrete walls is absent.
    3. Concrete reverberates upon impact. If one is driling holes or knocking walls , the entire building structure is to be felt in a very unpleasant way.

  • @EliotHochberg
    @EliotHochberg หลายเดือนก่อน +4

    It seems to me that 3-D printing houses has two main applications that circumvent some of the other problems:
    The first is creating architectural shapes that would be impossible to make any other way, like the example that was shown where the outside concrete was wavy and circular in the video.
    The second is building inexpensive housing quickly in areas that don’t already have the inventory infrastructure for traditional western housing.
    There are plenty of places in the world, most notably countries in Africa, where Woodstock housebuilding is not the standard, and there are even still people living in dirt huts. In places like that, being able to quickly build a step up level and housing would go along way to improving standard living. If one or two bring a 3-D concrete printing system there, you could build hundreds or possibly thousands of houses to a higher standard than his typical, more quickly and less expensive.
    Otherwise, 3-D housing printing designs would need to change in order to accommodate some of these other issues, but I think the other main opportunity for such systems would be for foundations and basements. Granted, the current system is pretty inexpensive and relatively official, however, if you were building a housing development with several hundred or even several thousand houses, having a system like this go from location to location to build all of the foundations might be cost-efficient and would certainly be fairly. The only issue would be how long does it take to move the machine from one location to the next.

  • @marksandoval5361
    @marksandoval5361 หลายเดือนก่อน +53

    If you're going to build a concrete house, using the standard pour into forms method is probably cheaper.

    • @PhosPhryne
      @PhosPhryne หลายเดือนก่อน +7

      On a one off, maybe - but how many people does it take to do that?
      So to do.. i don't know, 50 houses it takes that many people x50, but with this you only need 1 person at most to monitor each print and you can do them all at the same time.

    • @marksandoval5361
      @marksandoval5361 หลายเดือนก่อน +13

      @@PhosPhryne It doesn't matter how many people it takes, the bottom line is the price.

    • @PhosPhryne
      @PhosPhryne หลายเดือนก่อน +12

      @@marksandoval5361 .... And you do know LABOR is the highest cost of all?

    • @andrewhooper7603
      @andrewhooper7603 หลายเดือนก่อน +7

      @@PhosPhryne When everyone has been automated out of the means of production, who exactly is going to buy these products?

    • @PhosPhryne
      @PhosPhryne หลายเดือนก่อน +2

      @@andrewhooper7603 I'm not advocating or even think 3d printed houses can replace every aspect of a construction workers job. I'm just pointing out that they can have a use and it's not as far-fetched as you might think.

  • @mysticery
    @mysticery หลายเดือนก่อน +39

    “Forever haunted by a memorial of this imperfection”. Couldnt have said it better. And thats what makes 3d concrete printing so frustrating. Its dynamic, you cant be always monitoring the quality of the print. Especially when youre printing in an outdoor or open space, every little change in the environment affects the print quality. And whatever goes into the tube may seem okay initially, but watch it get extruded in absolute mess. Theres so many variables that it makes this type of construction causes more unique problems than traditional building methods. Im not sure if 3d concrete printing is the future, but i feel like automation of what humans are doing on site, would be the future.

    • @luisostasuc8135
      @luisostasuc8135 หลายเดือนก่อน +1

      You'd think putting something up to control more of the elements would be common to address that. Like a plastic greenhouse type thing

  • @williamcassleman5822
    @williamcassleman5822 หลายเดือนก่อน +17

    the first problem, is that 3d printing houses, is not 3d printing houses. What is ambitiously called 3d printing houses is automated, formless and marginally reinforced concrete pouring.

    • @WeaponOut
      @WeaponOut หลายเดือนก่อน +1

      Bingo. love it

  • @EliotHochberg
    @EliotHochberg หลายเดือนก่อน +12

    The biggest problem in building housing or any construction is not really the contractors or the materials. It can be, but a well organized construction company can bypass most of those problems, especially if they build homes at scale.
    The biggest problem is inspections and bureaucracy.
    Here in Los Angeles, that problem is especially, because the city does not have enough inspectors to do the inspections in an efficient way, and processing plans etc. can be very slow as well.
    A new construction next to the office I work at Looked like it was completed about six months ago, but then nothing happened for six months. I don’t know for a fact, but with experience with other construction, I guarantee that the reason was that they were waiting for an approval for something, and the inspector had not been able to come by for at least a month, and then the paperwork wasn’t processed for several months as well.
    For 3-D printed houses, or for any housing, if cities are serious about dealing with a housing crisis, they need to put in the money to ensure that inspections can be done quickly and efficiently. This means hiring more people to both do the inspections,and be knowledgeable about the requirements to help builders avoid problems along the way.

    • @EXROBOWIDOW
      @EXROBOWIDOW หลายเดือนก่อน +2

      I had a friend who worked as a computer geek for many years. But employers were looking for some kid who knew the latest programming languages. So my friend studied to become a concrete inspector. About the time he was qualified, 2008 happened. No building going on, so no inspection needed. He never worked as a concrete inspector, but did find a job as a baker with Vons supermarket. Since then we've had the pandemic, and related stuff happened. Partly explains the lack of inspectors.

    • @EliotHochberg
      @EliotHochberg หลายเดือนก่อน

      @@EXROBOWIDOW I'm sure it does, but here in Los Angeles, we've had a problem with not having enough inspectors for several decades. It is not been a budgetary priority, and it really should be.

  • @seanmurphy9776
    @seanmurphy9776 หลายเดือนก่อน +28

    This is a really good rundown of the problems of 3D printed buildings. I don't believe we want or need a one-size-fits-all, vertically integrated architecture.
    There's already plenty of complaining that our built environment is soulless and while 3D printing can create some dynamic shapes, it's true mission is fast, cheap replication.
    I wish there was more focus on going back to arts and craft in our architecture. The human touch in our mass-produced world.

    • @brianhirt5027
      @brianhirt5027 หลายเดือนก่อน

      I suspect that this sort of thing is going to play a ever greater role in new construction simply due to pressures created by climate shift alone. With tornado Allley now reaching from Spokane to Nashville, with hurricane impact zones now occuring well beyond the gulf states jamming up New England, with wildfires now wiping entire towns off the map in an afternoon I think we'll see a vastly increasing demand for concrete construction & anything that can deliver it quickly & uniformly. If you wish to 'humanize' it' i'd suggest focusing on technical means of facing these concrete structures. There's almost nobody in that space currently and there will be an increasing market demand for it as time moves forward.

    • @OregonOutdoorsChris
      @OregonOutdoorsChris หลายเดือนก่อน +1

      Except it's neither fast or cheap

    • @brianhirt5027
      @brianhirt5027 หลายเดือนก่อน +2

      @@OregonOutdoorsChris Nothing in prototype testing ever is. It takes time and manufacturing capacity coming online to bring that price per unit down. Far as i'm aware every single one of these printers is basically a custom built stepped up version of a homebrew.

    • @OregonOutdoorsChris
      @OregonOutdoorsChris หลายเดือนก่อน +1

      @@brianhirt5027 Being just vaguely related to the current 'cool' thing (consumer level plastic 3d printers) isn't solving a problem, and it has to actually solve a real problem, otherwise it has no hope of ever becoming cheaper, faster, or better.

    • @OregonOutdoorsChris
      @OregonOutdoorsChris หลายเดือนก่อน +1

      @@brianhirt5027 and P.S. ICF construction ALREADY does all the same things as 3D printed construction, except better, faster, and cheaper... and it's still more expensive than lumber construction

  • @hgbugalou
    @hgbugalou หลายเดือนก่อน +7

    I would really question the strength of these things in major storms or earthquakes. Concrete is strong in compression, but far less in extension and I am not seeing rebar or fiberglass aggregate to try and re-enforce it. Those layers are going to be weaknesses too and there are hundreds of them. Also it containing flyaash seems bad because that stuff is full of things that arent good for you.

  • @rafflesmaos
    @rafflesmaos หลายเดือนก่อน +7

    One of my favorite building technologies, ICF (Insulating Concrete Forms) is basically lego that you can arrange however you want then fill with concrete, getting the structure and insulation in one go. As with other concrete structures changes (other than additions) to it are not as easy as with stick built, but in return you get an air impervious highly insulated and extremely durable structure that will run circles around stick in terms of energy efficiency. Plus how often do people modify the outer shape of their houses, anyway?
    I'm not sure what 3D printed buildings offer over ICF - perhaps not as much labor, and circular shapes are easier with less finishing?

    • @imchris5000
      @imchris5000 หลายเดือนก่อน

      ICF construction is typically done with crews of the same size but ICF does not really offer much more over traditional forming it cost more takes, longer to set up, more complex to brace. I have done both ill take symons forms over ICF any day

    • @rafflesmaos
      @rafflesmaos หลายเดือนก่อน

      @@imchris5000 But then there's additional labor to remove the forms, adding insulation to the finished concrete on the outside, furring on the inside for drywall and mechanicals, etc. I can't imagine all that combined is still somehow cheaper to do than just doing ICF in one go.

    • @imchris5000
      @imchris5000 หลายเดือนก่อน

      @@rafflesmaos you have to do the same for ICF minus removing the forms which takes far less than than it does to assemble icf forms

    • @rafflesmaos
      @rafflesmaos หลายเดือนก่อน

      @@imchris5000 There's no need to fur out ICF, drywall can be applied to it directly and mechanicals can be routed inside of it. The "studs" or in this case fastening points are also built in. And there's of course no need to add insulation since the forms are insulating. All of those would need to be added to a bare concrete wall

    • @imchris5000
      @imchris5000 หลายเดือนก่อน

      @@rafflesmaos it sounds good on paper but having installed it things dont go that simple. its cake work to frame walls compared to trying to dig in the foam also with regular concrete on the outside the concrete can be your finished surface

  • @paolof.6899
    @paolof.6899 หลายเดือนก่อน +1

    A note for house construction, we build houses in batches with rolling contruction crews. Foundation layers go in first
    Welders for super structure
    Framers
    Roofers
    Eletrical
    Ect ect ect
    A houss still takes a few weeks to come together and some of these can be done in concert or in parallel with each other. The benifit is you can pop up like... a bunch houses all at once in a few weeks.
    I kinda see this as having the same issues as my home 3d printer... what we need is a specialized heavy duty vehicle you can drive through, self level then start printing...

  • @justinchipman1925
    @justinchipman1925 หลายเดือนก่อน +81

    Affordability is an issue because of the way our economy works, not because we can't do things on the cheap. In other words, it comes down to who owns the home--investor or occupant. 3d printed homes will be bought up, en masse, just as other affordable homes have been bought up, en masse, which constricts the market for owner occupied home and therefor drives those prices. Also, the home as an isolated object is not the objective of most people, who want to live in neighborhoods and send their kids to good schools. Again, walkable neighborhoods are desperately difficult to find and the market, therefore, makes them stupidly expensive. 3D printed homes will do nothing to solve this. In fact, if we were able to build a few million homes very quickly, the glut in housing would crash the prices and the economy. It's econ 101. The solution isn't a manufacturing gimmick, it's changing the way markets work. Since we invented markets and money, we can reinvent markets and money.

    • @strayiggytv
      @strayiggytv หลายเดือนก่อน +1

      This.

    • @Adrenaline_chaser
      @Adrenaline_chaser หลายเดือนก่อน +1

      Exactly! Couldn't have described it better 👏👏

    • @paolof.6899
      @paolof.6899 หลายเดือนก่อน +3

      I think singapore and the Netherlands have the right idea where they own the land and rentals so you can't speculate

    • @aotmr1604
      @aotmr1604 หลายเดือนก่อน +6

      We must decommodify housing

    • @kopshi
      @kopshi หลายเดือนก่อน +6

      Housing isn't bought up "en masse" by investment companies. Housing is scarce for consumers because major metropolitan areas don't build anything new anymore. For example, San Francisco permitted exactly 1,136 homes. That isn't enough to keep pace with the demand for living in San Francisco. Compare this to Austin TX, who has built 11,600 units in the same timeframe with much less demand, and they've seen a decline in both home and rent prices. It's all supply.

  • @skenzyme81
    @skenzyme81 หลายเดือนก่อน +11

    7:27 The solution for precision fit windows will be a milling robot that goes in after the print to use a diamond grinder to leave window openings far more stable and precise than possible by any other method.

    • @ryanjohnson3615
      @ryanjohnson3615 หลายเดือนก่อน +2

      I wonder if the print head couldn't also have a separate nozzle for expanding foam to use as a matrix structure for headers (to be knocked out later) and also to fill voids as insulation as it goes...

    • @diametheuslambda
      @diametheuslambda หลายเดือนก่อน +3

      ​@@ryanjohnson3615 Pouring modern concrete is time sensitive, as it is reacting from the moment it's mixed. You stop the flow, and random parts of the apparatus will jam with concrete hardening inside the machine. Meanwhile, the already poured concrete will bind less with the eventual next layer the more time there's between them.

    • @ryanjohnson3615
      @ryanjohnson3615 หลายเดือนก่อน

      @@diametheuslambda Right. It has to start and stop fairly often anyway though. I'd think a 2 part foam nozzle could be routed right next to the concrete nozzle so it just switches to foam for two seconds as it passes a window or door.

    • @Hybridog
      @Hybridog หลายเดือนก่อน +1

      Separate robot machine that comes in after rough window opening is printed and cured. It has different tools/nozzles/grinders etc. and it quickly forms a precise and specific window opening, perhaps even with custom ridges or flanges to accept a quick fit window designed as part of the whole system. Yes it's a second step, but it seems unlikely that any primary wall printer would ever be able to make anything but a rough window opening.

    • @WeaponOut
      @WeaponOut หลายเดือนก่อน

      Or just forms, lol

  • @BradMakula
    @BradMakula หลายเดือนก่อน +3

    They should open source this and let people play with making sheds and playhouses to work out some of the kinks. Way easier to accept some of the shortcomings when the building just houses your lawnmower and workbench

  • @007cloudsurfer
    @007cloudsurfer 29 วันที่ผ่านมา +1

    In Minneapolis there were a number of mid century modern drive in banks built by Twin City Federal S&L. They experimented with rounded interior and exterior walls /corner in a variety of floor plans. The branch banks used different finish materials such as brick, tile, vertical wood panels to create rounded forms -which were very 1960s space age modern. The banks were quite striking. The slogan for TCF Bank was "Tuck a buck, a day away!" Originally the branch banks were round to mimic the bank's tree logo. As a young architect I worked on several of these. After going thru a number of "experiments"in different parts of the Twin Cities what we found the most flexible construction option was to do the curvy walls on the inside of the bank and then put a more rectilinear form on the outside to fit into limited lots. Perhaps some of the difficulties described in your video might be resolved by using a Le Corbusier approach from the 1960s and 1970s. This approach was quite fashionable.

  • @TM10000
    @TM10000 หลายเดือนก่อน +20

    The problem I see with concrete is cracking. I recently watched a show on PBS that tested the flexibility of an ancient Chinese wood building under various earthquake conditions. It was amazing to see how the thing flexed and danced around as it was shaken. Even under non earthquake conditions there is settling, wind pressures and temperature/humidity changes over time that will cause cracks and seepage in concrete. And patching concrete never seems to work well. I also think the exposed concrete looks unsightly since I don't like the African mud hut aesthetic. Cheaper is not always better.

    • @jetah50
      @jetah50 หลายเดือนก่อน +1

      you can always attach some framing to get the exterior or interior visual you want. the 3d printed part can be structural if they wanted.

    • @normbograham
      @normbograham หลายเดือนก่อน +2

      Shockingly, the same was found in octagon blocks, when they were studied. They could dance in the earthquake, but returned to the same position. A square or rectangle block, does not do that. It's worse if you mortar it in place.

    • @TM10000
      @TM10000 หลายเดือนก่อน +1

      @@normbograham That is interesting. It seems we have for some reason become very wed to the square/rectangle for building structures. Maybe it is time to think outside of the box.

    • @johnorenick9026
      @johnorenick9026 หลายเดือนก่อน

      Nothing cheap about concrete construction, especially when you form both sides of a wall. It's labor intensive and OPC concrete is expensive, and then you have to frame a wall inside your structural concrete wall to have something to insulate anyway. If Blue Crete (above) works out, it will save a lot of labor and materials.

  • @skenzyme81
    @skenzyme81 หลายเดือนก่อน +25

    2:35 My man has never seen a vaulted ceiling. 😭 Bricklaying is lost media.

    • @calmeilles
      @calmeilles หลายเดือนก่อน +8

      Or an arch?

    • @filonin2
      @filonin2 หลายเดือนก่อน +1

      @@calmeilles For real

  • @OmniBui
    @OmniBui หลายเดือนก่อน +2

    i skipped the ad, but damn! that was a top tier segue! another subtle reminder to show why architecture is so massively under rated as an artform

  • @paristo
    @paristo หลายเดือนก่อน +3

    02:45 That is not true.
    You don't need any steel to bridge the cap, you use the bricks by forming a bridge over that opening. And it is stronger than steel, because it acts as a wedge and harder you push from above, more it wedges itself in the sides, that will hold the weight by pushing upwards.
    That is how basically most bridges and such are made, weight load balancing and shifting it to different directions from the stress point.
    The cement can withstand extremely high pressures, but it is very brittle to sheer force or pulling force. Why you can't use cement to hold something up by hanging it from cement, or put it on place where it is sheered off.

  • @Siethon1
    @Siethon1 หลายเดือนก่อน +5

    From an economic perspective, wouldn't most of these hurdles be solved by integrating 3D printing with prefabrication?
    With prefab, 3d printing could become much more modular and have more outside conditions controlled for to create a more consistent product. Even if there are other construction materials required, at least in a factory, it would be easier to integrate those materials with the 3d printing process. Also as a side note, I feel the biggest problem with housing affordability isn't the cost to produce the home itself, but rather, the inability for cities to up-zone areas that require denser housing.
    As always, cheers! Love your videos!

    • @MRTOWELRACK
      @MRTOWELRACK หลายเดือนก่อน +1

      There's no magic bullet. My city has and continues to upzone but there's not much uptake. More missing middle and high density helps. For downtowns, no height limit seems intuitive but that can drive land speculation, effectively slowing down and increasing the cost of development, so there's a balance. Even if municipalities and developers work together to fire on all cylinders, there are still shortages of staff and building materials. There are other issues too. There are so many issues that have snowballed together.

  • @pubwvj
    @pubwvj หลายเดือนก่อน +19

    I have built a bunch of RC/FC homes. There is a lot more very important complexity that these 3D printed buildings totally lack making them aweful.
    1) no tensor material - steel
    2) electrical conduits
    3) waterline conduit
    4) design shape limitations
    5) finish
    6) lack of thermal mass
    7) lack of insulation
    8) lack of a proper foundation
    9) roof
    10 ceilings
    11) too specialized equipment

    • @1pcfred
      @1pcfred หลายเดือนก่อน +3

      Yeah concrete with no reinforcing in it is garbage. Even that fibermesh stuff doesn't impress me. It stays together a little better. But nothing beats real steel.

    • @LeeGaudi-vb9ev
      @LeeGaudi-vb9ev หลายเดือนก่อน +3

      unless you aren't following building code, my understanding is that municipalities would never approve a building without steel or reinforcement. Watch the multitude of videos out there to see how wrong or simply misinformed you are. I just did a building in California and not a single thing on your list was an issue. R value over 30, PSI 7200 on the cement, sheer wall and steel built to withstand an 8.0 earthquake. Maybe you just have more homework. 3D printing doesn't do the entire process but you still have to follow code as with any technology.

    • @pubwvj
      @pubwvj หลายเดือนก่อน +1

      @leegaudi-vbcev, If you are replying to me then you completely failed to understand what I wrote.

  • @walkeas
    @walkeas 12 วันที่ผ่านมา

    I graduated engineering school almost 20 years ago. This is an amazing application of the technology. Great explanation.

  • @ryancarlson9680
    @ryancarlson9680 หลายเดือนก่อน

    Great video. I work a lot with 3d printers. I think eventually these house printers will use the same kind of automatic tolerance corrections that 3d printers do. For example, almost every 3d printer measures how far off its build plate is from being perfectly parallel with the hotend. They can correct for minor physical defects in software, as long as it’s close enough to parallel, it’ll automatically accommodate some error. With the scale of house systems, they’d be able to use technologies like Bluetooth beacons to be able to detect their hotend’s location in 3d space. That’d let them spend less time setting up before printing. The Voron 2.4 printers also automatically level their own gantry, their system would be absurd at this scale, but innovations will happen that make these house printers way better, faster, easier to use, than they are today.

  • @TriAngles3D
    @TriAngles3D หลายเดือนก่อน +2

    Everybody is an expert... :)
    Developed print and scan tech since early 90s. The years of schooling, working, researching, developing, finding funding etc.
    Then in late 2000s everybody was suddenly a 3D print expert overnight.
    People were making the wildest claims, investments and decisions despite having no engineering background whatsoever. The noise was overwhelming.
    Within a span of just a few months I just stopped talking to people about what I did and knew.
    That is how hype works.
    Looking back it seemed more profitable to just short the expected failures of others.
    Now that people have a more realistic understanding on how this tech works we can now get back to work.
    People are listening again.

  • @lisakilmer2667
    @lisakilmer2667 หลายเดือนก่อน +3

    This is a great overview of 3-D houses. The rounded profiles remind me of adobe, but I think the roughness of the extruded walls would be difficult to live with. Would not the interiors be really dirty and the exteriors grow mildew? I think the walls need to be troweled to a smoother finish in order for buyers to really adopt the process. I hope the technology does succeed, even if the houses are essentially identical. We lived in a G I-Bill neighborhood for a while. There can't have been more than 4 or 5 floor plans, but they stand the test of time regardless.

    • @1pcfred
      @1pcfred หลายเดือนก่อน

      It is easy to say trowel a wall. It's a lot harder to actually trowel a wall. We use something called a power trowel on floors. Because troweling concrete is pretty hard. It's some cardio. The only concrete that gets hand troweled today is the corners where the machine can't get to. The machine kind of looks like a helicopter. That's what they're called on job sites. They have 4 shoes on them and they spin. Unless it's a rider. Riders have 2 spinning deals. I was only ever on one job that used riders. You can't ride up a wall either. Power trowels are big heavy machines. It takes two guys to just drag one around. You can watch videos here of them being used. It takes a big heavy machine to trowel concrete. Or a guy named Vito that's built better than Schwarzenegger ever was.

    • @lisakilmer2667
      @lisakilmer2667 หลายเดือนก่อน

      @@1pcfred That's interesting. Must be why they leave the extruded concrete oozing.

    • @1pcfred
      @1pcfred หลายเดือนก่อน

      @@lisakilmer2667 on top of just being physically demanding achieving a nice finish with a trowel is a bit of a skill. It's not just mush it around and it simply works out. Concrete finishing is a trade. First the mix is placed, then it is skreeted, then floated and finally troweled. All this 3D is doing is placing. That's only step 1. On a really involved pour it's cured then. Curing is sealing it so it dries slower. The slower concrete dries the stronger it is. Concrete is a crystal. That's why it is so strong. The crystal grows as it sets and interlocks. As far as we know it never stops growing. But it does most of its growing in the first 28 days. That's full yield strength. But very old concrete can be very hard indeed.

    • @fredericapanon207
      @fredericapanon207 หลายเดือนก่อน

      I did once see a video (on a different channel?) Where the extrusion nozzle had downward extensions to smooth out the layers. Not perfect, but better.

    • @1pcfred
      @1pcfred หลายเดือนก่อน

      @@fredericapanon207 concrete consolidation is a bit more involved than just one swipe. But one's better than none I suppose.

  • @Roxor128
    @Roxor128 หลายเดือนก่อน +2

    Regarding the pre-fabricated components point near the end, making components in a factory that can then be assembled on site quickly is a pretty old technique. The Soviet Union used it to build lots of housing for its citizens following the devastation of World War II. The "Commie Blocks" that got built look mass-produced because they were, and while not the best that could be done at the time, were decent buildings with good city planning around them (much better than post-Soviet construction). They were designed to be something decent that could be put up in a year, rather than something really good that'd take a decade for the same number of apartments. Volume was the priority back then, as you would expect in such a situation.
    There's a lot of potential for pre-fabricated components, too. We mostly build on a 0.1m grid, anyway, so it probably wouldn't be too hard to design a library of components to snap into one, so you could then design a building in software and have the program spit out a list of what components you need to buy to get it built, as if you were designing a LEGO set.

  • @EliotHochberg
    @EliotHochberg หลายเดือนก่อน +1

    It also seems to me that there ought to be a way to combine manual labor with 3-D printing for some of these applications. For instance, you could create the internal structure, or spine, of a building using 3-D printed concrete, but no from the beginning that you’re going to return to do supplementary stick building within that frame. Alternatively, I could see methods where in every few feet, workers come in and smooth the concrete to a finish that is closer to what we expect, and can do things like square corners by subtracting the outer corners, you could add a metal corner shaper, and then bring in more of the concrete material to finish off the outside

  • @TheFudgism
    @TheFudgism หลายเดือนก่อน +5

    Have you looked at the startup bricklaying robot. I believe CAT was an investor in the robot bricklayer company.

    • @thewiirocks
      @thewiirocks หลายเดือนก่อน +1

      This was what I was wondering when he was talking about bricks. Seems like using high volume pre-fabricated parts (i.e. bricks) is going to be a better alignment with robots rather than concrete printing.

    • @TheFudgism
      @TheFudgism หลายเดือนก่อน +1

      @@thewiirocks There was a startup out of Perth Australia but they seem to have fallen off the map.

  • @kaepsele0711
    @kaepsele0711 หลายเดือนก่อน +5

    Great insights. Especially the problems with repairs & changes after the construction.

  • @devnom9143
    @devnom9143 12 วันที่ผ่านมา +2

    A yearing the issues of 3d printed homes reminds my all of the reasons why I favor the brick laying robot arms as they make house that ate much more similar to people are used to with 90° angles & being as smooth as any brick wall

  • @Mike__B
    @Mike__B หลายเดือนก่อน +1

    To deal with the "It looks weird" idea, I'm sure the first stucco houses probably had similar comments like that. "There's no brick work look" "there's no siding look" "It's an imperfect surface"

    • @jetah50
      @jetah50 หลายเดือนก่อน

      they just have to float the outside/inside. problem solved on how it looks.

  • @Nikolas4g63
    @Nikolas4g63 หลายเดือนก่อน +7

    the "cant fix mentality" is a non issue. anything needs attention can still be fixed with traditional ways. It doesnt need to be "reprinted"...

    • @GeahkBurchill
      @GeahkBurchill หลายเดือนก่อน +1

      Yeah. I imagine a broken pipe requiring an access hole be cut into the wall. It strikes me as an easy process to use cinder block or brick or even stucco to patch the hole.

  • @David-bp9lr
    @David-bp9lr หลายเดือนก่อน +7

    Isn't rebar used to ensure structural integrity when using concrete? How is that achieved in 3D printed structures? How is this better than just creating forms/molds and just dumping concrete into it?

    • @fredericapanon207
      @fredericapanon207 หลายเดือนก่อน

      Small steel "staples" are a different kind of aggregate in concrete that provides more tensile strength than rock aggregate.
      There are also plastic fibres but they are more used to minimize surface cracking as the concrete cures.

    • @normbograham
      @normbograham หลายเดือนก่อน

      Jokes on us, if we built structures that were under compressive loads, then we would not need as much concrete.

    • @joranbooth5529
      @joranbooth5529 หลายเดือนก่อน

      I can't comment on the total structural integrity of the wall, but rebar rods are placed orthogonally to the interior and exterior walls every 50cm or so every few layers. The space between the walls is often filled with a zig-zag of concrete too, similar to cardboard construction. The roofs are also attached with tie rods that span through the wall to screws formed into the foundation, providing some vertical compression. It is reinforced, but I am not certain what structural effect these have, especially compared to traditional reinforcement.

  • @LeandroOliveira-ih4df
    @LeandroOliveira-ih4df หลายเดือนก่อน +1

    That product placement came in a really smooth way, like my face after using Henson Shaving… No, wait…

  • @vinnieramone4818
    @vinnieramone4818 หลายเดือนก่อน

    For the windows and doors you can have a large flange mounted directly to the outside of the concrete then put trim on top of it.
    For the corners you could have a plywood form set up ahead of time and have the machine fill in the forum

  • @Alex-cw3rz
    @Alex-cw3rz หลายเดือนก่อน +7

    I think the biggest issue is what makes developers more money, whatever does that best is what developers would go for. If you go back 45 years to 190 years+ all construction was quicker and in most cases a lot quicker, so just because something is quicker doesn't mean it will take off. Look at pre fab, cheap, quick and much less profitable. We will get it if developers make more money, it's that simple. Even if it's a much worse product. Developers will claim it's regulations but putting on a harness takes a minute, a safety talk takes 20 mins. Yet the difference is not a day or week at most, it years even decades difference in length and amazingly the only thing that has gone up in that time is the amount of money they take in.

  • @stephen-ng
    @stephen-ng หลายเดือนก่อน +7

    This is what's described as ivory tower thinking. Most college graduates and engineers have no hand-on field experience. Talk to me when you build your own house.

    • @Isissa125
      @Isissa125 หลายเดือนก่อน

      Right? bro is writing fanfiction about how buildings work

  • @miket2120
    @miket2120 หลายเดือนก่อน +2

    The presentation cgi of the crane mounted extruder had me scratching my head. Cranes are not totally rigid systems, they sway about and don't stop on a dime. The more the arm is extended out, the less control you have, leading to misplacement of the concrete.
    Most brick homes use brick for the exterior support walls and let the interior be stud and sheetrock. This allows for fast build and easy modifications. A fully interior and exterior walled 3D home allows for none of that flexibility.
    Another aspect of 3D printed homes is the exterior. The rougher ridged texture is harder to paint with any method besides spraying, even a thick nap roller would have a difficult time. Unless it's smoothed out, all those ridges will collect dirt and will begin streaking; owners of textured stucco exteriors know this problem well.

  • @schmiddy8433
    @schmiddy8433 หลายเดือนก่อน

    >no rebar
    >Voids which collect water
    >Any print failure/inconsistency can potentially compromise the entire structure (how many of us have had failed 3d prints?)
    >High likelihood of whole building being skewed due to the frame being not perfectly square
    I could go on and on...

  • @alexandrecolautoneto7374
    @alexandrecolautoneto7374 หลายเดือนก่อน +5

    You know what is innovative? There is a country where every single citizen gets a house for free. Where housing is a basic right. That is innovative!

    • @captaincole4511
      @captaincole4511 หลายเดือนก่อน

      Live in ze ash concrete house! Eat ze bugs!

    • @ravanpee1325
      @ravanpee1325 21 วันที่ผ่านมา

      You need a home and not a house..commie blocks are the way to go

  • @bitcoinsig
    @bitcoinsig หลายเดือนก่อน +21

    I just don't really see how this is really that much better than placing styrofoam molds and pouring the concrete

    • @WeaponOut
      @WeaponOut หลายเดือนก่อน +8

      It's actually worse, not better.

    • @matt45540
      @matt45540 หลายเดือนก่อน +6

      A lot less labor, a lot less waste. I'd imagine it's 50% less product than a solid wall. Not to mention the thermal benefits

  • @HughsReviews
    @HughsReviews หลายเดือนก่อน +1

    Smooth transition into the sponsor of the video. Thank you for putting it at the end as well.

  • @ra4yu
    @ra4yu หลายเดือนก่อน +1

    3d printed homes, brick laying machines and all these other ideas always tackle one of the quickest and easiest parts of construction - building walls. Having people use a million dollar machine to do this just seems crazy.
    I see much more value in innovation that either eliminates processes like pre-finished products or ones that address complex and time consuming tasks like roof trusses.

  • @Schroefdoppie
    @Schroefdoppie หลายเดือนก่อน +16

    Without rebar, you're just building a sandcastle.

    • @LeeGaudi-vb9ev
      @LeeGaudi-vb9ev หลายเดือนก่อน +5

      There is rebar. still have to follow building code.

    • @brianhirt5027
      @brianhirt5027 หลายเดือนก่อน

      @@LeeGaudi-vb9ev Yup. rebar & something impossible for a tradesman to do. Internal print wall geometries.

    • @ytSuns26
      @ytSuns26 หลายเดือนก่อน

      And with rebar you are building a time bomb. The steel rusts blows the concrete apart and there goes your structure. Besides steel can be added to printed structures.

    • @brianhirt5027
      @brianhirt5027 หลายเดือนก่อน

      @@ytSuns26 Depends on the useneed. If rust becomes a significant risk it's manageable through sacrificial zinc anodes.

  • @kentslocum
    @kentslocum หลายเดือนก่อน +5

    I think we keep forgetting how much carbon is emitted in the process of making and curing concrete, whereas wooden houses essentially sequester carbon.

    • @Real_Tim_S
      @Real_Tim_S หลายเดือนก่อน +2

      "...fly ash admixture, or ash produced by the burning for pulverized coal..." in other words the byproduct of coal power plants. Which are all being shut down due to environmental rules. They are already looking at opening up old coal ash pits to reclaim what was buried as a waste byproduct of coal 50+ years ago as the concrete industry is doing a pretty good job of consuming the current output of plants.
      And like you say, the cement powder with is mostly kiln-dried lime and silica. There's a time and place for concrete IMHO, mostly along the outside where water and insect intrusion are a real risk. I'm all for a hard shell and a woody interior.

  • @Sylvan_dB
    @Sylvan_dB หลายเดือนก่อน +1

    They need to consider stucco (outside) or plaster (inside) to cover the printed walls. This can create a more traditional appearance and future repair, maint or additions can blend right in. One building I was in during remodeling in Los Angeles was originally built in the 1950s with exterior and some interior walls of about 8in solid concrete. Both sides of that were then finished with about another inch of hand finished concrete-based material like stucco or plaster. It was a challenge cutting new door and window openings... Had to rent a very large diamond blade circular saw (not hand-held!).

  • @BudoReflex
    @BudoReflex หลายเดือนก่อน +1

    I had briefly a 20% stake in a 3D house printing company before I decided it was not viable. The construction times are not any faster than brick when everything is taken into account. The onsite risks of vandalism are higher (the equipment is very expensive, not to mention the building very fragile before it sets properly). The transportation, storage, manpower are all equivalent or far more to 3D print.
    The niche market is not project housing, but rather upper end architecture, public buildings (libraries, schools, etc). The real breakthrough will be when it is easily integrated with traditional methods. Its biggest advantage is the ability to create complex curves which would be near impossible with traditional methods.
    If someone can create a far smaller setup, without the risks of vandalism and theft, or otherwise have it on secured sites, where the creativity advantages can be integrated, then it will have found its niche.

  • @Derpy1969
    @Derpy1969 หลายเดือนก่อน +4

    Those thousands of 3D printed houses being built are sure setting a huge trend.
    Wait, how many? One? Oh, JFC.

    • @avarec8888
      @avarec8888 หลายเดือนก่อน

      I guess you're to lazy to use google huh.....th-cam.com/video/Y-4S7cdo3tY/w-d-xo.html

  • @catface101
    @catface101 หลายเดือนก่อน +15

    Prefab, mass timber, high density, mixed use. This ain't it.

    • @StephenCoorlas
      @StephenCoorlas หลายเดือนก่อน

      The prefab mass timber fad is plagued with issues. It is not equivalent to ancient methods of building with old growth timber. Your buildings are being held together with glue and loose fibers. Check out WASP.

    • @RandyXandar
      @RandyXandar หลายเดือนก่อน +1

      High density may be fine for some, but not everyone wants to live in high density housing.

    • @catface101
      @catface101 หลายเดือนก่อน

      @@RandyXandar heal your heart

    • @RandyXandar
      @RandyXandar หลายเดือนก่อน +1

      @catface101 I'm not hating on people who want to live in that kind of housing, it's just not for me, city living just isn't my style, and I'm saying people should have a choice. One thing I do agree with urbanists on is that American zoning laws are stupid and need to change and I do appreciate walkability and bike-ability, I simply don't like when people try to overcorrect in the direction that assumes that people ought to be pressured into a condition they don't want, that's tyranny.

  • @microdesigns2000
    @microdesigns2000 หลายเดือนก่อน

    My company, a large multinational, is devoted to "light and sustainable". This is much better than 3D printed, IMO. Construction from carefully crafted parts made in a carefully engineered and controlled environment has a much better chance of success then something created on a job site.
    Near my home I watched a new hotel constructed, a Home 2 branded building (Hilton). Each room was trucked in and lifted by crane and placed into the frame. The entire room was complete, wired, plummed, furnished and finished somewhere else. As they were installed, they were tired into utilities. The construction was rapid, the whole project appeared less than six months at the site. Somewhere else, there are people who go to work to construct these rooms. This modular construction was done very well. The first time I stayed in a Home 2 a few years ago i noticed the shape, long and skinny. I said to my wife, "it feels like we are staying in the back of semi!". We'll it turns out that was true.

  • @randomkitty2555
    @randomkitty2555 หลายเดือนก่อน +1

    I'm for it.
    I myself would probably never get behind it but if it becomes popular enough then the cost of lumber would gradually become cheaper.

  • @TheLiamster
    @TheLiamster หลายเดือนก่อน +18

    If the US wants to solve housing shortages and affordability problems, then it needs to reform land use and zoning laws. There so many suburbs that are low density and NIMBYS repeatedly block proposals. Allowing ADUs, Duplexes, Triplexes and Quadplexes in all neighbourhoods would allow more people to live in places they want and bring down rent prices

    • @1pcfred
      @1pcfred หลายเดือนก่อน +3

      I don't want that crap next door to me. Renters suck. The financial barrier to entry keeps the riff raff out.

    • @seanmurphy9776
      @seanmurphy9776 หลายเดือนก่อน +2

      Wrong. NIMBYs are a problem but you don't want uncontrolled density everywhere. It's also people buying 3000 sq. ft. products en masse instead of the market demanding small homes. The bigger boogeyman is private investment in SFHs that we all need to fear.

    • @caspenbee
      @caspenbee หลายเดือนก่อน +4

      Amen! The idea that everybody can/should want to live in a single-family unit is rediculous and makes for boring wasteful commuter neighborhoods.

    • @Greatdome99
      @Greatdome99 หลายเดือนก่อน +1

      I don't any barking dogs, tall weeds, loud music or junked cars next door. Mixed density is one thing, but not mixed values.

    • @1pcfred
      @1pcfred หลายเดือนก่อน

      @@caspenbee home ownership is the American Dream. We build more single family dwellings in the USA than the rest of the world combined does. So not only is it the dream but we also make it the reality too.

  • @SuburbaniteUrbanite
    @SuburbaniteUrbanite หลายเดือนก่อน +3

    Techbros will be the end of humanity.

  • @robertbeisert3315
    @robertbeisert3315 หลายเดือนก่อน

    14:21 they also tell you that the razors dull a lot faster than they actually do. You mostly need to get the blades clean and dry as fast as possible.
    I've gone over a year on a single cartridge without issue.

  • @stephenfestus9268
    @stephenfestus9268 หลายเดือนก่อน

    Lumpy mess is a good way of describing the finish. Buckminster Fuller had an interesting idea, but you don't see geodesic domes anymore. Also, with a 25mm (1 inch) tolerance fit and finish, or any type of modular improvements (like cabinets) are going to be tough to work with.

  • @chrisb9319
    @chrisb9319 หลายเดือนก่อน +3

    I feel like this is "adapting space technology gone wrong". We absolutely want 3d printing structures on the Moon and Mars so we don't have to bring any material with us. But there it is going to be sintering of regolith, meaning you take the material lying on the ground, melt it with a laser and let it cool down again to create a solid structure.
    In desert regions this would be great to create structures out of the sand that is already there. And all you need is a small laser attached to a solar panel and a vacuum cleaner to suck out the sand that was used as support material.
    Meanwhile concrete is much more limited because it is so viscous or even liquid in the beginning. And it needs a whole giant industry to even create the concrete.

  • @TheVRSofa
    @TheVRSofa หลายเดือนก่อน +4

    I mean, 3d printing isnt for prototypes, 10 years ago maybe, but its 100% used for finished products now. and its a finished thing. building need improvments but pouring concrete which kills the planet, or finding a way to do it on site. no brainer

    • @1pcfred
      @1pcfred หลายเดือนก่อน

      The planet is an inanimate object so it cannot be killed. It may enter a state that doesn't suit you. But that's not going to adversely impact it. This planet has already been hit by another planet sized object and that didn't kill it. Busted it up some. That's where the Moon came from. It's the leftovers of that collision.

  • @LogistiQbunnik
    @LogistiQbunnik หลายเดือนก่อน

    A dutch company actually pre produces complete walls of bricks in their facilities and ships them to the building site for "assembly" to achieve scale and automation (robot line for manufacturing)

  • @chhunter
    @chhunter 14 วันที่ผ่านมา

    The only part that is being automated with 3d printing is essentially the framing, which is already the quickest and easiest part of construction. You still have to do all of the finishing (plumbing, electrical, cabinets, windows, doors, painting, flooring, roofing, etc), which is the slower and more expensive part.

  • @Whatshisname346
    @Whatshisname346 หลายเดือนก่อน +4

    To me, it seems to be a technology in search of a use. It's not that quick, it's not that flexible, the equipment is expensive and the results are questionable in terms of quality. Why wouldn't you just use prefabrication?

  • @Cyanitecture
    @Cyanitecture หลายเดือนก่อน +3

    Wow… That was a ridiculously smooth transition to the sponsor add… you are amazing Stuart. Mitnick taught you well. 🙌

    • @ryanjohnson3615
      @ryanjohnson3615 หลายเดือนก่อน

      Yeah, best I've seen. Hope they pay him a lot. They should be able to after selling $4 razors for $80.

  • @mcRydes
    @mcRydes หลายเดือนก่อน +1

    In the USA, only 3% of homes are built modular from components assembled off site. By contrast in Germany it’s more like 15%, and in Japan closer to fifty percent! What’s wrong with US design that it’s so much harder for us to use this tech?

  • @kirkandersen
    @kirkandersen หลายเดือนก่อน +1

    Hey I’m in this video! 😊 I believe the title is misleading and the repairability of these houses can be compared to other concrete structures. Additionally, not all the walls HAVE to be printed and “wet walls” can be easily timber framed for service and repairs. It’s entertaining to see others’ perspectives on new techniques without any experience in the field. Automation in construction is in its infancy stage and will flourish in the future.

    • @hypertectonics7009
      @hypertectonics7009 หลายเดือนก่อน

      If you don't print all the walls then you're losing all the advantages of printing: you'll have a slow construction that requires lots of manual labor, while still having a lot of the limitations of printing. In that scenario why not just make the concrete parts with prefabs or a conventional pour?

    • @ChrisWijtmans
      @ChrisWijtmans หลายเดือนก่อน +1

      @@hypertectonics7009 timber framing is not slow lol. probably concrete pouring and finishing is the longest part of building a house.

  • @MaxwellWilliams42
    @MaxwellWilliams42 หลายเดือนก่อน +5

    We manufacture tons of consumer goods to extremely high quality at high volumes, such as cars, boats, computers, stoves, ovens, etc... Why is manufactured housing still so stigmatized and low-key, not actually that affordable?

    • @tinman362
      @tinman362 หลายเดือนก่อน

      A lot of what props up fake wealth in America is real estate. A lot of boomers have liquidating the equity in real estate as their retirement funding plan.
      What happens to that if we fix the housing problem?

    • @henryglennon3864
      @henryglennon3864 หลายเดือนก่อน +5

      Because it's nearly impossible to achieve economy of scale in construction. If it were possible, the existing companies that produce single family prefab homes would have already done it.

    • @Alex-cw3rz
      @Alex-cw3rz หลายเดือนก่อน +5

      ​​​​​@@henryglennon3864 this is totally untrue. Look at rebuilding after ww2, indoor bathrooms, kitchens, children having their own bedroom and for the same price as the rent in a slum and 100,000s being built every year. Economies of scale has happened in construction time and time again, look at the mill towns in northern UK etc.
      The difference is it makes more money to build like we do now and developers want more money .

    • @Eidolon1andOnly
      @Eidolon1andOnly หลายเดือนก่อน +1

      Because unlike those other goods, the majority of how buildings are constructed can't be automated.

    • @henryglennon3864
      @henryglennon3864 หลายเดือนก่อน +2

      @@Alex-cw3rz no. The difference is that after WW2, developers bought immense tracts of "empty" land and built suburbs full of uninsulated houses accessible only by cars. There's no empty land left near cities now, and in America at least, almost all of the post war building stock is so badly insulated and constructed, that they're borderline worthless.

  • @InMadera
    @InMadera หลายเดือนก่อน

    1 day (a least) for the machine foundations, 1 day for assembly the machine, plus 1 day to print. That’s 3 days for the construction of the concrete walls. In Colombia and many places in Latinamerica, builders can make the concrete walls in one single day. No bricks, no frames, just the concrete and the tubes for the utilities.
    And the squares are 90 degrees (almost) and the rooms can host the normal furniture.
    Problems: The same you pointed, but with some intelectual work, it can be fixed, plus adding insulation, is ease breeze, and can be done both sides, boosting the insulation feature.
    I add the problem of having a rustic and rough wall.

  • @abishai3234
    @abishai3234 หลายเดือนก่อน

    As an architect myself, I'd like to get my hands on detailed specs and their R&D results regarding heat transfer specs and structural integrity of a concrete layered like that. I can see the dilatations for wall insulation, but a layout like that seems to create a lot of heat bridges. I wonder how energy characteristics compare to established building techniques.

  • @Ogre302
    @Ogre302 หลายเดือนก่อน

    This did get my creative libido going. I like things little kitsch, so I'd like the ribbed look.
    When I was watching this I was inspecting a vial of paint additive used in cars with that chameleon color shift. Imagine adding it to interior paint after it's printed. You can get almost an agate look. Someone with a good artistic eye can make it almost look like the house is carved into a massive semi precious stone. Lay down a base coat and add this stuff (mine goes from light teal to dark purple, there is a red that goes from red to black with a black base coat.)
    Great... now I'm going to be up all night overwhelming this...

  • @Christopher_Gibbons
    @Christopher_Gibbons หลายเดือนก่อน

    Most of these issues have been solved for plastic 3d printers. Rounded corners can be removed by making them bigger and then cutting away excess material, or replacing the corners with a separate part. Window frames can be inserted during printing and the window itself can support the bridging concrete above it (the same would work for drainage or pipes). The ugly look of the layers can be easily sanded and filled with plaster. Etc…

    • @MrSteeDoo
      @MrSteeDoo หลายเดือนก่อน

      Concrete can be easily sanded? Have YOU ever sanded concrete?

  • @mikeh2520
    @mikeh2520 หลายเดือนก่อน

    I'm fascinated by the hurricane proof cinder block homes that have concrete floors and roofs. I see these in the Caribbean islands. The simplicity is excellent. They have cinder blocks for all of the interior and exterior walls. Rebar is placed vertically into the voids in the block forming reinforced concrete columns at intervals that get concrete poured in. When the walls are done, scaffold bucks are brought in and placed to hold a wooden concrete floor form that extend above the walls and about 2' horizontally beyond the perimeter walls. The floor of reinforced concrete gets poured and the whole process starts over for the next floor above. I stayed in a 3 story home like that that even had a cistern under the lowest floor. Sure it's not a fancy aesthetic to see painted blocks inside and out but I imagine that one could put furring strips to hold siding on the outside and drywall on the inside which would to take it to another level. People would come to the island and build a Million dollar wooden home nearby just to have it blown to pieces in the next hurricane. Who cares how nice a home looks if it can't take the local storms.

    • @fredericapanon207
      @fredericapanon207 หลายเดือนก่อน

      The main reason for the cistern is that these Caribbean island do not have any surface sources of water. Rainfall only and not much of that. So the rooves are whitewashed and designed to collect any rainwater.

    • @mikeh2520
      @mikeh2520 หลายเดือนก่อน

      @@fredericapanon207 Yes, I understood that in my first visit.

  • @geraldwood7125
    @geraldwood7125 หลายเดือนก่อน

    In the 1970s you could buy a filter queen vacuum cleaner with a hair dryer attachment. In used book stores there used to be a glut of books on cooking and baking in a microwave. Just because you can do something with a technology, does not mean you should. Good video, tyvm.

  • @remiheneault8208
    @remiheneault8208 หลายเดือนก่อน

    Really enjoyed the calm and pragmatic approach to this subject. A refresher compared to the usual "click-bait" method.

  • @chrisoakey9841
    @chrisoakey9841 หลายเดือนก่อน

    3D printing lauers can be done again with the arms. And you can make square corners by troweling the concrete as it sets up. Also if the mix in nylon rebar, the concrete will still be extrudable, and fibres conect layers, but troweled so they dont stick out of the finish.

  • @skipmcgrath
    @skipmcgrath หลายเดือนก่อน

    good video. You are right to point out that 3d printing is similar to brick in structural terms. But in terms of the economics, the real trade off is between 3d concrete and stick building. 3 or 4 framers with a pick up truck and $1000 worth of tools from Home Depot, can assemble the frame of a house in few days.

  • @BCarnes
    @BCarnes หลายเดือนก่อน

    The seamless ad at the end. Well done sir. I didn't realize I was in the ad until it was basically over😂

  • @JohnMcGann90
    @JohnMcGann90 หลายเดือนก่อน

    Could you foresee a system where the basic structure is 3D printed and then finished with drywall / plaster on the inside / outside respectively? That way the printing element is not trying to replace the whole building phase but just the basic building like bricks etc.