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建Layer 5 The Autonomy Stack · self-building

Build. Factories fabricate, robots mark and anchor, shells unfold themselves under closed-loop control; humans only approve gates.

7 subsystems33 projects31 papers29 numbers95 sources
LV2 · concept visual · AI
建01 Thesis

Fully automated construction is not a robot laying every brick on site. The factory does the work, the package carries the complexity, and the site needs only three narrow robotic acts: mark, anchor, unfold. The evidence splits cleanly. Narrow, repetitive, digitally specified tasks are commercial and measurably better (layout -68% labour hours, solar piling about 3x, drywall finish -34% cycle), while generalist on-site fabricators remain research and capital-heavy builders failed (Katerra >USD 2B, Veev USD 600M). Self-erecting enclosures work physically (BEAM, LIFE at +27% burst margin, Boxabl under 1 h on site), but Boxabl's 744 built vs 285 delivered shows the real bottleneck is anchoring, permission and siting, not the fold. The non-obvious insight for ORIJO: unfolding a 2.2 t shell needs only about 0.005 kWh of potential energy, so the hard parts are control, sensing and stiction, not power. FBR's two-loop boom compensation and NASA's structure-relative robot metrology can be borrowed directly to make unfolding closed-loop, and the 910 mm grid becomes the robot's coordinate system.

68 %

Robotic layout labour-hour reduction (rework 6.42% → 0.25%)

measuredkam2025
744 vs 285 units

Boxabl fold-out homes manufactured vs delivered (to 2025–08–19)

reportedboxabl-hwboxabl-bo
about 300 vs about 100 piles/day

Autonomous solar pile driver vs conventional, 2-person crew

claimedrpd-pvmag
Slab 5 of the stack · see all eight

Maturity of options assessed

  • commercial 10
  • pilot 6
  • experimental 8
  • speculative 0
Deep pageJourney · container to first nightAlsoASHI legs and JO-PORT sockets
建02 Subsystem explorer

How the build layer works, option by option.

Each subsystem lists the technologies the research found, with maturity, an estimated technology readiness level and the numbers that matter. Hover a TRL bar for the reason behind it.

BUILD-S1 · function

Off-site micro-factory (fabricate)

Turn configurator output into CNC-cut, laminated, wired and tested panels or modules, close to demand and with little capital.

How it works

Standard industrial arms work inside fixtures: magnet or vacuum fixturing indexes studs and sheets, and a vision system checks pose before nailing, screwing or gluing, so the robot never has to 'understand' a building, only a panel in a jig. Adhesive work is scheduled against open time with torque-controlled pressing and logged QA (Huang 2026). Panels are the unit of automation; volumetric assembly with gantries follows later (Reframe expects that step 3–4 years out). The factory is designed to move: AUAR ships its cells in containers, Cuby deploys a mobile factory on about three acres. Throughput is set by the slowest manual step (MEP, windows, finishing), not the robot cycle time.

PILOTTRL 7

Containerised robotic micro-factory (AUAR, Reframe FAB1, Cuby)

Off-the-shelf arms + fixtures in a leased shed or containers; panels for timber or light-steel homes; hardware-as-a-service or franchise

  • up to 180 homes/yr claimedAUAR output per micro-factoryauar-trr
  • up to 500 multifamily units or 250 single-family homes per yr claimedReframe FAB1 capacityreframe-trr26
  • <5 M USD reportedReframe FAB1 equipment costreframe-trr26
  • about 10 M USD reportedCuby factory deploy costcuby-hw24
  • 12 months reportedCuby time from contract to operating factorycuby-hw23

Best for E1E2E7 regional hubs within trucking distanceORIJO licensee factories

Limits Volumes unproven; MEP and finishing still manual; state factory-built certification per plant.

Several sites producing real homes (Reframe 10 completed, 8 occupied); throughput claims not yet shown at full rate.

COMMERCIALTRL 8

Automated framing / truss and wall-panel cells (BotBuilt, House of Design)

Reprogrammable robots nail and assemble framing panels and trusses for production builders

  • about 1 USD/h claimedBotBuilt robot operating costbotbuilt-tc
  • 7–16 (labour 4–10) USD/sq ft reportedTypical US framing cost incl. labourbotbuilt-tc

Best for Panelised conventional homesORIJO floor cassettes (MUTO-D)

Limits Only the frame is automated; the frame is a minor share of total house cost.

Robots sell into truss and panel plants; BotBuilt had built framing for 9 homes by late 2023 with a 2,000-unit pipeline.

COMMERCIALTRL 9

Large volumetric modular factory (Katerra, Veev, Factory OS)

Fixed high-capex plants that build finished volumetric modules or proprietary panel systems, often vertically integrated

  • >2,000 M USD reportedKaterra capital raised before Chapter 11 (June 2021)katerra-cd
  • 600 M USD reportedVeev capital raised before shutdown (Nov 2023)veev-tc
  • 3,000–4,000 units reportedFactory OS / Harbinger units built since 2017factoryos-vs

Best for Dense urban multifamily with a steady public pipeline

Limits Plant utilisation risk; one funding gap closes the plant (Harbinger WARN notice for 280 staff, Feb 2026).

Technically proven (Factory OS/Harbinger reports about 4,000 units), but repeated financial failure (Katerra, Veev; Harbinger WARN notice Feb 2026).

EXPERIMENTALTRL 5

Multi-robot timber gluing / assembly cells (ICD Stuttgart)

Containerised robots glue and torque-press timber slabs; crane plus clamp robots assemble on site

  • 2 (containerised) robots reportedRobots per gluing micro-factoryhuang2026

Best for Mass-timber floorsfuture ORIJO thick panels

Limits Research hardware and custom joints.

Full-scale prototypes in research projects, no product.

史03 Projects · including failures

Who has tried this, and what happened.

33 projects and companies, oldest first. 3 of them closed, failed or went bankrupt; they are kept in, because investors learn more from them than from the successes.

WhenProjectWhatStatusOutcome or lesson
2008–2023VeevVeev · US/IsraelPrefab panel-system homebuilder backed by LennarfailedRaised USD 600M and closed in Nov 2023 after a capital raise was cancelled. Industry verdict: 'trying to boil the ocean'; homebuilding innovation runs on 5–10 year cycles that do not fit VC timelines. veev-tcveev-hw
2011–2014TERMESHarvard Wyss/SEAS · USTermite-inspired climbing robots building from bricks using local rulesresearchCorrectness guarantees for decentralised construction; speed and payload far from practical. werfel2014termes-seas
2012 (patent priority)-TenFold self-deploying buildingsTen Fold Engineering · UKLever-linkage buildings that unfold from a transport boxpilotElegant gravity-assisted kinematics (the source of ORIJO's self-levelling-leg spec), but little evidence of volume sales; EP patent application withdrawn. tenfold-pattenfold-yt
2013ESA lunar 3D printing studyESA, Foster+Partners, Monolite, Alta, SSSA · EUBinder-jet printing of regolith simulant into a 1.5 t blockresearchAbout 2 m/h; showed vacuum-compatible printing. esa-dshape
2014–2019In situ Fabricator / DFAB HOUSEETH Zurich NCCR Digital Fabrication · SwitzerlandMobile construction robot that built a brick wall and the Mesh Mould wall on siteresearchProved on-site precision via relocalisation; found actuator payload-to-mass ratio the limit, which led to new hydraulic designs (HEAP excavator lineage). giftthaler2017dorfler2019buchli2018garciadesoto2018
2015–2021KaterraKaterra Inc. · USVertically integrated offsite construction: factories (Spokane, Phoenix, Tracy), CLT, design and contractingfailedRaised >USD 2B (mostly SoftBank) and filed Chapter 11 in June 2021. Buying the whole supply chain and standardising designs failed against project variety and sticky subcontractor relationships. katerra-cdkaterra-wiki
2016 (patent priority)-Hadrian XFBR Ltd · Australia/USTruck-mounted 32 m boom block-laying robot with dynamic compensationpilotRecord >300 blocks/h in a 2023 test programme; factory acceptance (>285 blocks/h on a 751-block build) and sale to select partners at AUD 7.8M from Oct 2025; first US build was a single test home for PulteGroup at TerraWalk at Babcock Ranch, Florida (reported Feb 2025). About nine years from patent priority to sales. hadrian-am23hadrian-ie25hadrian-pathadrian-ythadrian-cp25
2016- (in the field since 2016; >3 GW of solar installed, >50,000 operating hours, 40+ sites, reported June 2026)Built Robotics Exosystem and RPD 35Built Robotics · USAutonomy kits for excavators; then an autonomous solar pile driveractiveFound product-market fit in a narrow, repetitive, GNSS-friendly task (solar piles, about 3x manual) rather than general excavation (inference from product history). rpd-pvmagbuilt-exo-ytbuilt-sick-ytbuilt-xlab
2016-BEAMBigelow Aerospace / NASA · USExpandable module on the ISSshippedFirst expansion attempt stalled (2016–05–26); the second took about 7 h; certified to stay until 2028 versus a 2-year plan. Packed dwell causes stiction, so expansion needs slow, staged control. beam-wiki
2017–2026Factory OS / Harbinger HomesHarbinger Production · USVolumetric modular apartment factory on Mare Island, Vallejo (Alphabet first customer, 300 units)at_riskAbout 4,000 units since 2017 (company-reported, 90% affordable), yet filed a WARN notice on 2026–02–13 covering up to all 280 employees, citing lack of new business, a pipeline gap and loss of capital funding. The company said it was not planning to close; the outcome after the 60-day window was not verified. Big plants die when the order book stalls. factoryos-vs
by 2017 (video)-SAM and MULEConstruction Robotics · USSemi-automated mason and material unit lift enhancershippedCollaborative robots with a mason in the loop are the commercially durable form; MULE users report 30–50% savings. sam-ytcr-site
to 2017 (paper)Digital Construction PlatformMIT Media Lab (Mediated Matter) · USTracked compound-arm robot printing insulated foam formworkresearch14.6 m dome in <13.5 h with PV-charging steps; never commercialised. keating2017
2018-ICON Vulcan / Phoenix / TitanICON Technology · USGantry and multi-storey 3D concrete printing; Wolf Ranch community with Lennar; Army barracks; NASA OlympusactiveCut about 25% of staff (114) in Jan 2025, then raised USD 56M. Printing walls fast does not make whole buildings cheap; the company refocused on selling printers (Phoenix, Titan). icon-tc25icon-3dp25icon-phoenix-yticon-titan-yticon-wolf-yt
2019 (patent priority)-Boxabl CasitaBoxabl · USFold-out factory-built studio shipped in a road-legal packageactiveAbout 744 built vs about 285 delivered by 2025–08–19; about USD 51M 2024 net loss; SPAC combination with FG Merger II Corp. implying about USD 3.5B enterprise value (350M shares x USD 10). Completion of the Nasdaq listing was not confirmed in the sources read. Unfolding is solved; demand, permits and site work are not. boxabl-hwboxabl-boboxabl-pat
2019–2024 (papers)ARMADASNASA Ames · USRobots that assemble and reconfigure composite voxel latticesresearch256-cell autonomous build and reconfiguration; the structure is the robot's metrology (direct ancestor of ORIJO TSURU). gregg2024park2023sollearmadas-yt
2020-BotBuiltBotBuilt · USRobotic framing (wall panels, floor and roof trusses) for production buildersactiveRaised USD 12.4M seed (2023); 9 homes framed then. Automating one trade sells; automating everything did not (cf. Katerra). botbuilt-tc
2020-Project OlympusICON with NASA MSFC · USLunar surface construction (pads, habitats, roads) from regolith; Apollo-sample tests and lunar-gravity flightresearchUSD 57.2M NASA award (Nov-Dec 2022). Still ground-level R&D, with no flight demonstration found. icon-nasa
2020 (left stealth)-Canvas drywall finishingCanvas Construction · USMobile robot spraying and sanding joint compound to Level 5shipped34% shorter Level 5 cycle at Newark Civic Center; union partnership eased adoption. canvas-cd
2020 (paper)RomuHarvard Wyss / Univ. Stuttgart ICD · US/GermanyAutonomous robot driving posts and sheet pilesresearchProof that small robots can anchor; extended to fleet check-dam simulations. romu2020
Sep-Nov (year 2020 per public reporting; not stated on fetched page)LUNARKSAGA Space Architects · DenmarkRigid carbon-panel origami habitat in high-Arctic Greenlandshipped750% expansion; 2 crew for 60 days at down to -30 C. Origami shells can be lived in. lunark-saga
2022-Reframe Systems FAB1Reframe Systems · USRobotic microfactory (off-the-shelf arms, own vision, motion planning, magnet fixturing) for panelised and modular homesactiveRaised USD 40M (Aug 2026); FAB1 equipment cost <USD 5M for up to 250 single-family homes/yr; 10 homes completed. Shows capital-light and local can work. reframe-trr26reframe-trr25
2022-LIFE habitatSierra Space (straps with ILC Dover) · USExpandable Vectran-strap habitat, 300 m³ full-scale test articlespilotFull-scale bursts at 77 and 74 psi vs 60.8 psi required; destructive testing is the certification path. life-tclife-ut
2023-Cuby mobile micro-factoryCuby Technologies · US'Factory that makes factories': deployable home-component factory on about 3 acres plus a 4-person unskilled on-site crewpilotAbout USD 10M per factory, 12 months to operate, about 150–200 homes/yr (claimed). Ten-year targets are aspirations, not results. cuby-hw24cuby-hw23
2023–2026On-site and micro-factory timber gluing robotsUniv. Stuttgart ICD / IntCDC · GermanyCrane + clamp + arm on-site gluing; containerised screw-press gluing cellresearchEmbedding positioning aids in the material makes robots precise; this supports ORIJO's material-robot co-design. opgenorth2024huang2026
2024-AUAR robotic micro-factoriesAutomated Architecture (AUAR) + ABB Robotics · UK/USContainerised ABB-robot cells producing timber-frame wall, floor and roof cassettes; hardware-as-a-servicepilotUp to 180 homes/yr per micro-factory (claimed); two units shipped to Rival Holdings in the US Midwest; 12-week lead time to ship a factory. auar-trrauar-news
2024 (paper)Self-reconfigurable voxel robotsMIT Center for Bits and Atoms · USRobots made of the voxels they assembleresearchSelf-replicating assembly fleet demonstrated at small scale. smith2024
2024-Max Space isotensoid habitatsMax Space · USCord-restrained (isotensoid) expandable modulespilot2 → 20 m³ prototype built by 5 people in 6 months; 2026 rideshare pathfinder planned; Voyager investment (2026). maxspace-tcmaxspace-voyager
2025–2026Skovsporet (COBOD BOD3)COBOD + Saga Space Architects + partners · Denmark36 printed student apartments (40–50 m²) in six buildingsshippedLearning curve: the first 6-apartment building took several weeks of printing, the last took 5 days, with a 3-person crew on site. skovsporet-na
to 2025Mighty BuildingsMighty Buildings · USPrefab zero-net-energy homes; built a 3D-printed net-zero community in Desert Hot Springs, CA (technology details not verified)for_sale (Jan 2025; later outcome unverified)Put up for sale via Rock Creek Advisors in Jan 2025 after a restructuring that released staff; no closure was reported in the source. Proprietary materials plus a factory plus a builder role burned cash. mighty-3dpicon-3dp25
to 2025Diamond AgeDiamond Age · USRobotic home-construction startup partnered with production builder Century CommunitiesfailedEntered liquidation despite a production-builder partnership (reported early 2025). icon-3dp25
by 2025Dusty FieldPrinterDusty Robotics · USBIM-to-floor layout printing robotshippedIndependent case study: -68% labour hours and rework 6.42% → 0.25%. kam2025dusty-site
by 2026CivDot+Civ Robotics · USAutonomous survey staking rover for solar and earthworksshippedOutdoor layout is commodity at about 8–9 mm (vendor claim); the remaining problem is anchoring, not marking. civ-site
by 2026LIFTBOTKEWAZO · Germany (HQ not verified in fetched page)Scaffold-climbing material robotshippedLogistics robots pay back quickly; 22% schedule saving reported in one case. kewazo-site

Failures, read for lessons

  1. Katerra (>USD 2B raised, Chapter 11 June 2021)

    WhyBought an entire supply chain via acquisitions, standardised designs that projects would not accept, kept expanding through 2019 warning signs; COVID delays; lender Greensill collapsed.

    Lesson for AnygroundStay asset-light: license containerised micro-factories, buy MIZU, battery and PV from OEMs, and never own land, contracting or materials plants. One product grammar (910 × 1820 grid), not bespoke projects.

  2. Veev (USD 600M raised, shut Nov 2023)

    WhyA capital-hungry proprietary panel system; a cancelled raise killed it; observers say it should have been a builder, not a manufacturer.

    Lesson for AnygroundProve unit economics on a 6-key hotel or farm that ORIJO operates (SHIKINEN lease revenue) before scaling factories; keep burn tied to delivered nights and kWh.

  3. Boxabl: 744 built vs 285 delivered (mid-2025); about USD 51M 2024 loss

    WhyUnfolding works in under an hour, but buyers still need land, permits, foundations and utility hookups; inventory piled up.

    Lesson for AnygroundThe bottleneck is site and permission, not the fold. ORIJO must ship anchoring (ASHI), autonomy (no utility hookup) and a permit pack with every order, and build only to signed orders.

  4. 3D-printing shake-out: ICON -25% staff (2025), Mighty Buildings for sale (2025), Diamond Age liquidation

    WhyPrinting automates walls only (about one trade); roof, MEP, windows and finishes stay manual, so whole-house savings are small, while printers, pumps and crews are capital-heavy.

    Lesson for AnygroundDo not print shells. Use printing only for optional thermal-mass plinths (E3) or lunar pads (E8).

  5. Harbinger/Factory OS WARN notice for up to 280 staff (Feb 2026) despite about 4,000 units (closure not confirmed)

    WhyLarge fixed plant with a lumpy public-funding pipeline.

    Lesson for AnygroundFactory capacity should scale in container-sized increments that can be idled or moved.

  6. BEAM first expansion stalled (May 2016)

    WhyHigher-than-expected internal pressure with minimal motion on the first attempt (reported); the commonly cited cause, friction between long-packed fabric layers, was not confirmed in the sources read here.

    Lesson for AnygroundLong packed storage causes hinge and membrane stiction. Require a pre-ship cycle test, slow staged unfolding with force limits and a dwell-time rule in the module passport.

  7. Hadrian X: about 9 years from patent priority to commercial sale

    WhyOutdoor dynamic compensation, adhesive logistics and certification of robot-built walls take long field iteration.

    Lesson for AnygroundBudget multi-year field iteration for any novel field robot (TSURU, pile robot); start with rented commercial machines (RPD-class, excavator augers).

  8. General-purpose research fabricators (In situ Fabricator, DCP) never productised

    WhyLow payload-to-mass ratio, relocalisation overhead, single-purpose tools, no business case per Davila Delgado's adoption barriers.

    Lesson for AnygroundAutomate narrow, repetitive, high-value steps (layout, anchoring, unfold sequencing, latch audit) and let the folded product carry the complexity.

文04 Key papers

The science underneath, 31 papers.

Newest first. Each line states the finding that the dossier relies on.

  1. 2026

    Constraint to capability: a multi-robot screw-press gluing micro-factory for scalable and efficient multi-story timber slab assembly

    Huang Z., Stark T., Skoury L., Wagner A., et al. · Construction Robotics · experiment

    Two containerised robots apply glue, place and torque-press timber slabs within adhesive open time, with logged QA/QC; validated in a full-scale prototype.

  2. 2026

    Additive manufacturing of lunar regolith for reconfigurable building blocks toward lunar habitation

    McCallum C., Liang Y., Tushar N., Xu B., et al. · npj Advanced Manufacturing · experiment

    Binder-free laser sintering of lunar simulant; designs Lego-like interlocking bricks reassemblable without mortar; sintered cubic blocks reach a peak compressive strength of about 3.4 MPa.

  3. 2025

    Comparison of dusty robotics and traditional layout methods

    Kam A., Tanaka Y., Brosque C., Roedel H. · Construction Robotics · field-trial

    On an 8-floor medical office building, robotic layout cut total labour hours by 68%, layout days by 18%, physically straining work by 99% and rework from 6.42% to 0.25%.

  4. 2025

    3D printing technology in concrete construction

    Zhang Y.-Y., Zhu X., Li M., Zhang C., et al. · Nature Reviews Clean Technology · review

    Review notes that formwork can be 35–60% of total construction cost when not reusable, the main economic case for formwork-free printing (Scholar snippet; full text not read).

  5. 2025

    Standardization Aspects of Concrete 3D Printing

    Vasilic K · RILEM Technical Letters · review

    The absence of standardized testing, processing and approval procedures hinders adoption of 3D printed concrete; proposes first steps towards European-level standardization.

  6. 2024

    Ultralight, strong, and self-reprogrammable mechanical metamaterials

    Gregg C.E., Catanoso D., Formoso O.I.B., Kostitsyna I., et al. · Science Robotics 9(86):eadi2746 · experiment

    NASA ARMADAS: two robot types assembled, disassembled and reconfigured a 256 unit-cell composite lattice (0.0103 g/cm3, 11.38 kPa strength, 1.1129 MPa stiffness), using lattice periodicity for indexing and metrology.

  7. 2024

    Self-Reconfigurable Robots for Collaborative Discrete Lattice Assembly

    Smith M., Abdel-Rahman A., Gershenfeld N. · IEEE ICRA 2024 · experiment

    Robots built from the same voxels they assemble (reversible solder joints) assembled another robot and then co-assembled a structure, so the system can scale its own parallelism.

  8. 2024

    Large-scale modular and uniformly thick origami-inspired adaptable and load-carrying structures

    Zhu Y., Filipov E.T. · Nature Communications 15 · experiment

    Derives conditions for flat-foldable, developable, uniformly thick degree-N vertices; builds metre-scale modular origami that reconfigures between storage and structural states and carries large loads.

  9. 2024

    Multi-scalar robotic fabrication system for on-site press gluing in multi-storey timber buildings

    Opgenorth N., Nunes Locatelli D., Leder S., Wagner H.J., et al. · Automation in Construction 165:105774 · experiment

    Clamping device + industrial arm + automated crane assemble point-supported timber slabs on site with high precision by building positioning aids into the material.

  10. 2024

    Precision in Assembled Discrete Lattice Space Structures for Next-Generation ISAM Applications

    NASA Ames ARMADAS team (authors not extracted) · IEEE Aerospace Conference 2024 · experiment

    Studies the geometric precision achievable by robot-assembled discrete lattices for antenna and optical structures (title/abstract fragment only).

  11. 2024

    Design and evaluation of compliant hinges for deployable thick origami structures

    Authors not extracted · Journal of the IASS 65(4) · experiment

    Compares compliant hinge designs for architectural-scale thick origami (Scholar snippet only).

  12. 2023

    SOLL-E: A Module Transport and Placement Robot for Autonomous Assembly of Discrete Lattice Structures

    Park I.-W., Catanoso D., Formoso O., Gregg C., et al. · IEEE/RSJ IROS 2023 · experiment

    5-DoF bipedal inchworm robot with identical servo-locked foot and cargo grippers; demonstrated autonomous transport and placement of building blocks on the ground.

  13. 2023

    A review of '3D concrete printing': Materials and process characterization, economic considerations and environmental sustainability

    Ahmed G.H. · Journal of Building Engineering 66:105863 · review

    Highly cited 3DCP review covering rheology, buildability, cost and LCA (~230 citations; abstract not retrieved).

  14. 2022

    Large-Scale 3D Printing for Construction Application by Means of Robotic Arm and Gantry 3D Printer: A Review

    Puzatova A.V., Shakor P., Laghi V., Dmitrieva M.A. · Buildings 12(11):2023 · review

    Classifies printers as robotic-arm, portal and gantry; gantry suits whole buildings, and no printer then handled concrete with coarse aggregate, a strength and cost barrier.

  15. 2021

    An autonomous excavator system for material loading tasks

    Zhang L., Zhao J., Long P., Wang L., et al. · Science Robotics 6(55):eabc3164 · field-trial

    Baidu AES runs 24 hours per intervention (no human intervention for 24 h) with material handled per hour close to an experienced operator, on compact and standard excavators.

  16. 2020

    On-site autonomous construction robots: Towards unsupervised building

    Melenbrink N., Werfel J., Menges A. · Automation in Construction 119:103312 · review

    Review (~330 citations) finds industry automates earthmoving and prefabrication while academia builds additive/discrete assembly; full autonomy needs most work in site preparation and substructure (anchoring), plus co-designed material-robot systems.

  17. 2020

    Autonomous anchoring for robotic construction

    Melenbrink N., Rinderspacher K., Menges A., Werfel J. · Automation in Construction 120:103391 · experiment

    Romu, a wheeled robot, uses a vibratory hammer plus its own body mass to drive posts and interlocking sheet piles, shown in controlled and natural terrain; the paper names anchoring as the gap neither industry nor academia had addressed.

  18. 2020

    Robotic technologies for on-site building construction: A systematic review

    Gharbia M., Chang-Richards A., Lu Y., Zhong R.Y., Li H. · Journal of Building Engineering 32:101584 · review

    Systematic review of on-site robots (~220 citations); most remain at prototype stage (abstract not retrieved).

  19. 2019

    A review of collective robotic construction

    Petersen K.H., Napp N., Stuart-Smith R., Rus D., Kovac M. · Science Robotics 4(28):eaau8479 · review

    Review (~210 citations) of multirobot systems that modify a shared environment: scalability comes from co-designing architecture, process, mechanisms and control.

  20. 2019

    Mobile robotic fabrication beyond factory conditions: case study Mesh Mould wall of the DFAB HOUSE

    Dorfler K., Hack N., Sandy T., Giftthaler M., et al. · Construction Robotics 3:53–67 · field-trial

    Case study of the In situ Fabricator building the curved Mesh Mould wall of DFAB HOUSE on an occupied research building (abstract not retrieved; numbers not extracted here).

  21. 2019

    Robotics and automated systems in construction: Understanding industry-specific challenges for adoption

    Davila Delgado J.M., Oyedele L.O., Ajayi A., Akanbi L., et al. · Journal of Building Engineering 26:100868 · review

    Focus groups with 28 experts plus survey (~580 citations): the top adoption barriers are contractor-side economics, client-side economics, technical/work culture and a weak business case.

  22. 2018

    Digital in situ fabrication — Challenges and opportunities for robotic in situ fabrication in architecture, construction, and beyond

    Buchli J., Giftthaler M., Kumar N., Lussi M., et al. · Cement and Concrete Research 112:66–75 · review

    Position paper from NCCR Digital Fabrication on state estimation, control and material processes for robots that fabricate on site (abstract not retrieved).

  23. 2018

    Productivity of digital fabrication in construction: Cost and time analysis of a robotically built wall

    Garcia de Soto B., Agusti-Juan I., Hunhevicz J., Joss S., et al. · Automation in Construction 92:297–311 · model

    Simulation from DFAB HOUSE data (~430 citations): robotic fabrication beats conventional productivity for complex walls; the advantage shrinks for simple geometry (no single headline number in abstract).

  24. 2018

    Construction automation: Research areas, industry concerns and suggestions for advancement

    Chen Q., Garcia de Soto B., Adey B.T. · Automation in Construction 94:22–38 · review

    Maps construction automation research against industry concerns (~220 citations; abstract not retrieved).

  25. 2018

    Design of a 3D printed concrete bridge by testing

    Salet TAM, Ahmed ZY, Bos FP, Laagland HLM · Virtual and Physical Prototyping 13(3) · case study

    Most full-scale 3DCP structures were not certifiable under codes of practice; a bridge was certified for public use through design-by-testing. Precedent for ORIJO: certify the fold by full-scale test, not by calculation alone.

  26. 2017

    Toward site-specific and self-sufficient robotic fabrication on architectural scales

    Keating S.J., Leland J.C., Cai L., Oxman N. · Science Robotics 2(5):eaam8986 · field-trial

    MIT Digital Construction Platform (hydraulic + electric compound arm on a tracked base) printed a 14.6 m diameter, 3.7 m tall insulated-foam dome formwork on site in under 13.5 h, with early PV charging.

  27. 2017

    Mobile robotic fabrication at 1:1 scale: the In situ Fabricator

    Giftthaler M., Sandy T., Dorfler K., Brooks I., et al. · Construction Robotics 1:3–14 · field-trial

    ETH In situ Fabricator built a full-size undulating brick wall with repeated autonomous repositioning and localisation, and the Mesh Mould process; limits led ETH to call for a new class of construction actuator.

  28. 2015

    Construction automation with autonomous mobile robots: A review

    Ardiny H., Witwicki S., Mondada F. · IEEE ICROM 2015 · review

    Classifies autonomous mobile construction robots by application, material and robot system; space agencies are a main driver of no-human construction.

  29. 2014

    Designing Collective Behavior in a Termite-Inspired Robot Construction Team

    Werfel J., Petersen K., Nagpal R. · Science 343(6172):754–758 · experiment

    A compiler turns a user-specified structure into local rules that guarantee completion; physically demonstrated with 3 autonomous climbing robots using only onboard sensing and stigmergy.

  30. 2014

    Programmable self-assembly in a thousand-robot swarm

    Rubenstein M., Cornejo A., Nagpal R. · Science 345(6198):795–799 · experiment

    1,024 simple Kilobots self-assembled into user-specified 2D shapes using local rules: proof that coordination scales, at very low speed (number from title; abstract not re-read).

  31. 2009

    Deployment Testing of an Expandable Lunar Habitat

    Hinkle J., Lin J.K.H., Watson J. · AIAA SPACE 2009 · experiment

    ILC Dover / NASA LaRC hybrid habitat with rigid end caps and a softgoods mid-section, deployment-tested (details not extracted).

数05 Numbers ledger

Every number, with its basis.

Measured, reported, claimed, calculated or target: the basis travels with the value.

QuantityValueUnitBasisSources
Robotic layout labour-hour reductionDusty FieldPrinter vs manual, 8-floor LA medical office; also rework 6.42% → 0.25%68%measuredkam2025
Autonomous solar piles per day (2-person crew)Built Robotics RPD 35; about 73 s per pile; sub-centimetreabout 300 (vs about 100)piles/dayclaimedrpd-pvmag
Autonomous excavator unattended runBaidu AES; throughput about equal to an experienced operator24h per interventionmeasuredzhang2021aes
Hadrian X peak lay rateRecord from FBR's testing and calibration programme (announced 2023–05–08), not an outdoor site build; '>70 m²/h of wall' applies only to the largest block format Hadrian is designed for (conditional, not measured). 2025 factory acceptance test: 751-block structure at >285 blocks/h effective; FBR claims peak up to 360 blocks/h.>300blocks/h (USA-format CMU)reportedhadrian-am23hadrian-ie25
Hadrian X priceSold via construction partners after 2025 factory acceptance testingAUD 7.8M (article also gives 5,088,759 without a currency label, presumably USD)per machinereportedhadrian-ie25
Laser tracker rate for boom compensationFBR patent: slow boom loop + fast arm loop, 1 ms planner cycle≥ 250, preferably ≥ 1,000Hzreportedhadrian-pat
Gantry printer max speed / crew / priceCOBOD BOD2 spec page; setup ≥ 6 h500 mm/s / 4 / from 400,000 USDmixedclaimedcobod-bod2
3DCP learning curveSkovsporet, 36 apartments, BOD3, 3-person site crewseveral weeks → 5days per 6-apartment buildingreportedskovsporet-na
On-site printed dome formworkMIT DCP14.6 m dia x 3.7 m in <13.5 hm, hmeasuredkeating2017
Robot-assembled latticeNASA ARMADAS assembly + reconfiguration256 cells; 0.0103 g/cm3cells; g/cm3measuredgregg2024
Micro-factory annual outputCapital-light factories, 2024–2026up to 180 (AUAR); up to 250 SF homes (Reframe); about 150–200 (Cuby)homes/yr per factoryclaimedauar-trrreframe-trr26cuby-hw23
Micro-factory capexCompare Katerra >USD 2B raised<5 (Reframe equipment); about 10 (Cuby factory)M USDreportedreframe-trr26cuby-hw24katerra-cd
Capital lost by failed vertically integrated offsite buildersKaterra Ch.11 June 2021; Veev shutdown Nov 2023>2,000 (Katerra) + 600 (Veev)M USD raisedreportedkaterra-cdveev-tc
Fold-out home units built vs deliveredBoxabl; about 744 manufactured vs about 285 delivered and installed by 2025–08–19; 2024 net loss about USD 50.95M. The '<1 h on-site assembly' figure is not stated in the cited sources (unverified).744 vs 285units (as of 2025–08–19)reportedboxabl-hwboxabl-bo
Expandable module packed → expandedBEAM; first expansion stalled, second took about 7 h with 25 air pulses2.16 × 2.36 m → 4.01 × 3.23 m; 16 m³; 1,413 kgm, m³, kgreportedbeam-wiki
Full-scale softgoods burst marginSierra Space LIFE, 300 m³ article, Dec 2023; second full-scale test 74 psi (+22%)77 psi vs 60.8 psi (+27%)psimeasuredlife-tclife-ut
Isotensoid habitat prototypeMax Space2 → 20 m³; 96 cords x 17,000 lbm³; lbfreportedmaxspace-tc
Origami analog habitat expansionSAGA LUNARK, Greenland, 2 crew for 60 days750%reportedlunark-saga
Drywall Level 5 cycle-time reductionCanvas at Newark Civic Center (Webcor)34%reportedcanvas-cd
Outdoor staking precisionCivDot+ vendor page; '8x faster' than unspecified baseline (claimed, no methodology)3/100 ft (vendor states 8; 3/100 ft is about 9.1)ft (mm)claimedciv-site
Sintered regolith brick strengthBinder-free laser sintering of lunar regolith simulant; strength measured on sintered cubic blocks (interlocking Lego-like bricks were designed separately; their strength is not given in the abstract)3.4MPa (peak compressive)measuredmccallum2026
Regolith binder-jet print rateESA/Monolite D-Shape 2013about 2 (next gen 3.5)m/hreportedesa-dshape
NASA lunar construction awardICON Project Olympus, late 202257.2M USDreportedicon-nasa
3DCP leader layoffsICON, Jan 2025; raised USD 56M a month later114 (about 25%)employeesreportedicon-tc25icon-3dp25
Robotic framing running costBotBuilt; US framing USD 7–16/sq ft incl. labour 4–10about 1USD/hclaimedbotbuilt-tc
Energy to raise one YOSHI-4 half shellE = m g h with m = 1,100 kg (half of 2,200 kg YOSHI-4 target mass), centre-of-gravity lift h = 1.5 m (assumption): 1,100 × 9.81 × 1.5 = 16.2 kJ. Unfolding is a force and control problem, not an energy problem.about 0.0045kWhcalculatedconcept-v3
Patent-to-commercial lag for a field construction robotHadrian dynamic compensation priority 2016–07–15 to 2025 factory acceptance and saleabout 9yearscalculatedhadrian-pathadrian-ie25
ICC-ES AC509 (3D concrete walls) approvalEvaluation-service route for proprietary 3D printed walls2023–08 (rev. 2024–08)datereportedicces-ac509
ICC 3D automated construction standard: work start / public hearingCovers load-bearing, non-load-bearing and shear concrete walls; ICC 1150–2026 listing seen in ICC Store snippet (not read)2023–10 / 2025–02–14datereported3dprint-icc-wallsicc1150-store
段06 Autonomy ladder

From manual to Earth-independent, in human minutes.

Human minutes per week for this layer at each level (log bars). The unified site-level scale is on the Autonomy Stack page.

  1. L0

    Conventional: surveyor stakes, crew digs footings, carpenters assemble; modular set by crane.

    Hand tools, crane

    n/a (several person-weeks per home on site; no ORIJO data) min/wk
  2. L1

    Machine-assisted: GNSS staking, excavator auger for screw piles, TenFold/Boxabl-style manual jack or winch unfold with a checklist.

    CivDot-class staking, compact excavator, 12 V winch, ASHI legs

    Deployment about 30–38 person-h per 4-person home (calculated, targets); then about 30 min/week inspection min/wk
  3. L2

    Robot does narrow tasks: autonomous staking, RPD-class or robotic helical piling with torque logging, app-sequenced unfold with sensor-gated latches.

    RPD 35 / Romu-class anchoring, load-cell winch, IMU per panel, KUSABI latch sensors

    Deployment about 15–20 person-h per home (target); 15 min/week remote review min/wk
  4. L3

    Supervised autonomy: site robots chain survey → anchor → level; the shell unfolds itself under a closed-loop fold controller; TSURU audits latches; remote engineer approves gates.

    ORI-SEQ controller, SUMI-ITO anchoring rover, digital twin, ARMADAS-style rail robot

    Deployment about 6–10 person-h (target, mostly delivery and sign-off); 5–10 min/week min/wk
  5. L4

    Autonomous relocation: the module re-levels itself as soil or snow moves, refolds before storms or at lease end and is collected by a standard carrier.

    Jackable ASHI legs (Halley VI precedent), refold-certified hinges, weather-triggered fold policy

    <5 min/week; humans only for transport min/wk
  6. L5

    Self-growing settlement: robots install new piles and dock new modules delivered by drone or rover without people (lunar TSUKI case: robotic pre-deployment before crew).

    Collective construction (ARMADAS, self-reconfigurable fleets), regolith sintering, inflatable cores (LIFE/Max Space)

    0 on site min/wk

ORIJO roadmap for this layer

  • 2027 L1 · v3 Phase 1 Bench
  • 2029 L2 · v3 Phase 3 Catalogue (first IE homes, HATA-MURA farms)
  • 2032 L3 · v3 Phase 4 Extreme (KITA winter-over)
結07 Interfaces

What crosses to the other layers.

Flows into and out of this layer from the synthesis, coloured by currency.

  • Structure →Fold kinematics, latch lines, pile reactionsdatum ± 10 mm target; JO-PORT float ± 3 mm kN per leg; mm datum tolerance target
  • Energy →Pre-charged unfold buffer for winches and robots<0.01 potential energy; peak power is the sizing case kWh per unfold calculated
  • Water →Drainage routing before pile layoutpile layout generated after water routing - design rule
  • Loop →End-of-life panels, offcuts, refold-return logisticsall modules refoldable - design rule
  • Grow →Half-jo carriers, rails, cassettes made to the 910 mm pitch910 × 455 carrier mm design rule
  • → StructureLogged pile positions and torques; registered datum frame± 10 mm position target; torque-depth curve per pile mm / Nm target
  • → EnergyCommissioning order and unfold power peaksPV wing unfold about 1 h of attendance person-h target
  • → WaterFirst-flush and leak test at dockingpressure-decay test per port - design rule
  • → LoopFactory offcuts, packaging returnsnot quantified - unknown
  • → GrowHATA cassettes docked on JO-PORT datumsabout 2 (v3 deploy target) h per cassette target
  • → CareInstalls rails, sockets, docks; hands over as-built point cloudone survey per deployment - design rule
  • → MindFold scripts, IMU/load-cell telemetry, module passports (cycles, dwell, latch torque)every latch confirmed before next step - design rule
  • Care →Re-levelling, refold before storms, depot repair of swapped organs0.5 with organ swap vs 24–72 with on-site repair MTTR h target
  • Mind →Configurator output: site plan, pile layout, fold scripts, Brick graph≤ 15 working days deposit to shipped kit (v3 G3 target) days target
折08 ORIJO design

The recommended stack and what we would build next.

What ORIJO adopts from the state of the art, the new mechanisms this layer adds and the 12-month prototype for each, with its pass and kill criteria.

SubsystemORIJO choiceWhy
BUILD-S1 fabricateLicensed containerised micro-factory (CNC router + 2 cobots + vacuum membrane laminator + fold test rig), AUAR/Reframe patternCapex in the USD <5–10M class is proven to produce homes; ORIJO panels are flat, so fixture-first robotics fits better than volumetric lines. Avoids the Katerra/Veev capital trap.
BUILD-S2 layoutDrone photogrammetry + RTK staking rover (CivDot-class, rented) outdoors; FieldPrinter-class layout only for KURA pads on slabs or roofsCommercial, about 8–9 mm outdoors (vendor claim) and 1.6 mm indoors; 68% labour reduction evidence.
BUILD-S3 anchoringHelical screw piles installed by compact excavator auger with torque logging (L1/L2); develop SUMI-ITO rover; use RPD-class subcontractors for farms over about 40 pilesAnchoring is the gap the Melenbrink review flags, and torque is a free proof-load record. Solar-pile robots already exist commercially.
BUILD-S4 on-site additiveNone for shells; optional printed plinth or thermal-mass hearth in E3; regolith sintering only for E8 padsThe 3DCP shake-out shows wall printing alone does not pay; ORIJO's value is factory-finished folds.
BUILD-S5 deployable shellThick-panel rigid origami (M01/M02) with karakuri counterweights + 12 V winch, closed-loop ORI-SEQ controller; softgoods bladder only for M13Unfold energy is trivial (about 0.005 kWh per half shell); the risks are peak force, wind, stiction and latch verification, which are control and sensing problems solvable with commodity parts.
BUILD-S6 structure-relative robotsTSURU inchworm on crease-rail datums (M09) for latch audit and cartridge swapARMADAS shows structure-indexed robots avoid cumulative error; the 910 mm grid is a ready-made lattice.
BUILD-S7 off-EarthLicense grammar; partner for regolith pads (Olympus-class) and LIFE/Max Space-class bladdersCapital and TRL are outside a startup's reach; keep TSUKI as licensing.

01 New mechanism

ORI-SEQ (fold sequencer)

Closed-loop unfold and refold controller for YOSHI/HOSHI shells, adapting FBR's two-loop compensation idea to folding.

How it works

A slow loop drives the 12 V winch or geared counterweight along a precomputed kinematic path from the bar-and-hinge solver (web/fold). A fast loop uses a per-panel IMU and an inline load cell to stop, hold or back off: an electromagnetic brake on each primary hinge damps gusts and dynamic overshoot. Gates between phases require latch confirmation (KUSABI sensors), wind below a threshold from a mast anemometer and a hinge-torque signature within the band recorded at factory acceptance. The same script runs backward to refold, and every run is logged to the module passport (cycles, peak loads, dwell time since last fold).

12-month prototype
1:4 scale YOSHI half shell (4 panels, 2 fold lines) on a test frame, plus one full-size single-hinge bay (910 × 1820 panel pair) with winch, 4 IMUs, 2 load cells, 2 hinge brakes and an ESP32/PLC controller
BOM
USD 8,000–15,000 (estimate)
Test
200 unfold/refold cycles; fan-driven gust injection; stiction test after 30 and 90 days packed at 40 C; compare peak cable force with the solver prediction
Pass
Peak cable force within 15% of prediction; no uncommanded motion >20 mm under gust; all 200 cycles complete with latch confirmation; post-dwell breakaway force <1.5x fresh
Kill
Breakaway force after 90-day dwell >3x fresh with no seal design fix, or controller cannot hold the panel at any mid-fold pose in the gust test

02 New mechanism

SUMI-ITO (ink-line anchoring rover)

Named after the carpenter's ink line: a small tracked rover that stakes, drills and installs helical anchors for ASHI legs and logs torque-depth curves as proof of capacity.

How it works

RTK-GNSS plus total-station prism for position (CivDot-class). A hydraulic or electric planetary torque head (target class 5–10 kN.m, assumption) screws 76–89 mm helical piles (assumption) to a torque cut-off chosen by an engineer for the soil class. The rover reacts torque through its own mass plus temporary ground anchors (Romu's body-mass principle). It records torque against depth for each pile and flags refusal (rock), after which the configurator swaps that foot for a rock plate or ballast crate. Output: a pile map registered to the shell datum.

12-month prototype
Retrofit a rented mini-excavator or compact track loader (1.5–3 t) with a commercial helical drive, inline torque sensor, RTK and a logging computer; semi-autonomous drive-to-point
BOM
USD 25,000–60,000 excluding rented base machine (estimate)
Test
Install 40 piles across 3 soil types; load-test 6 piles (tension and compression) against the torque-predicted capacity
Pass
Position error ≤ 25 mm at 95%; measured capacity ≥ torque-predicted capacity on 6/6 tests; ≤ 20 min per pile average
Kill
Torque-capacity correlation unusable (>30% scatter) in 2 of 3 soils, or >40 min per pile

03 New mechanism

KUSABI (wedge latch with proof)

Self-tightening wedge latch on each fold line that proves its own state.

How it works

A spring-driven tapered wedge (kigumi-style) drops into a hardened pocket when the panel reaches its end angle. Taper locking removes play, and a Hall sensor plus a strain gauge on the wedge body report seated and preloaded. TSURU or a human can re-drive the wedge with a standard hex tool. State feeds ORI-SEQ gates and the passport.

12-month prototype
12 latches in LVL and steel variants on the full-size bay rig
BOM
USD 3,000–6,000 (estimate)
Test
Cyclic 1,000 engage/release; freeze-thaw and dust; preload decay over 6 months outdoors
Pass
Detection of seated vs unseated 100% in 1,000 cycles; preload decay <20% in 6 months
Kill
False 'seated' reading >0.5% or wedge jams in ice/dust tests

04 New mechanism

TATAMI-KOUJOU (container micro-factory cell)

ORIJO licensee factory: two 40 ft containers unfold into a 910 × 1820 panel line.

How it works

Fixture-first cell after Reframe and AUAR: CNC router cuts facets; cobot 1 places closeouts and hinge hardware against magnetic fixtures; vacuum membrane laminator bonds KASANE membranes; cobot 2 drives fasteners and wedge latches; a fold test rig cycles each module 5 times, weighs it and logs its centre of gravity to the passport.

12-month prototype
Single-line pilot in a leased bay with 1 router, 1 cobot, 1 laminator, 1 fold rig
BOM
USD 350,000–700,000 (estimate)
Test
Produce 2 YOSHI-4 and 4 HOSHI-2 shells; time study per panel
Pass
≤ 16 labour-h per HOSHI-2 shell and ≤ 60 per YOSHI-4 (targets); zero failed fold-acceptance cycles on the last 3 shells
Kill
Labour-hours per shell not falling below 2x target after the 6th shell

Sizing reference

home 4p

modules
1 KURA-3 + 2 YOSHI-4 + 1 MIURA-W + 3 ASHI-4 (12 legs/piles)
site labour person h
30–38
elapsed days
2–3
piles
12
basis
calculated from v3 targets (deploy_hours, ASHI 15 min/pile target) and a 2-person crew
formula
H = crew x [t_layout + N_pile x t_pile + sum(t_unfold_i) + t_checks]; crew 2; t_layout 1 h; N_pile 12 × 0.25 h = 3 h; unfold = 2 x (2–4 h) YOSHI + 2 h KURA + 1 h MIURA = 7–11 h; checks 4 h; H = 2 x (15–19) = 30–38 person-h

hotel 6key

modules
6 HOSHI-2 + 1 YOSHI-4 + 2 KURA-3 + 2 MIURA-W + 9 ASHI-4 (36 piles)
site labour person h
about 74–78 at L1; about 42–44 at L2 with robotic piling
elapsed days
4–5 at L1 (2-person crew)
piles
36
basis
calculated from v3 targets
formula
t_layout 2 h + 36 × 0.25 h (9 h) + 6 × 2 h HOSHI + 2–4 h YOSHI + 2 × 2 h KURA + 2 × 1 h MIURA + 6 h checks = 37–39 h x 2 crew = 74–78 person-h. At L2 an RPD-class or SUMI-ITO rover installs piles (about 3x faster per RPD claim, applied as an assumption) and ORI-SEQ halves the unfold attendance, giving 2 h + 3 h piles + 10–11 h unfold attendance + 6 h checks = 21–22 h x 2 = 42–44 person-h.

farm module

modules
T1 farm: 1 KURA-3 + 2 YOSHI-6G + 6 HATA-4 + 4 ASHI-4 (16 piles) + PV wings
site labour person h
about 63–71 at L1
elapsed days
4–5
piles
16
basis
calculated; YOSHI-6G unfold assumed equal to YOSHI-4 target (2–4 h); HATA-4 deploy 2 h each (v3 target)
formula
t_layout 1.5 h + 16 × 0.25 h (4 h) + 2 x (2–4 h) + 6 × 2 h + 2 h KURA + 2 × 1 h MIURA + 6 h checks = 31.5–35.5 h x 2 = 63–71 person-h
note
Formula includes 2 × 1 h MIURA-W although the module list names no MIURA-W; without them the total is 59.5–67.5 person-h. Reconcile the module list.

micro factory

value
about 0.7 home-equivalents per working day
basis
calculated from AUAR claim
formula
180 homes/yr / 250 working days = 0.72
問09 Open problems

What is not solved yet.

  1. Hinge and membrane stiction after long packed dwell (BEAM precedent): no public data for thick-panel architectural hinges; ORI-SEQ must measure breakaway vs dwell time and temperature.
  2. Torque-to-capacity correlation for robot-installed helical piles in mixed, frozen or rocky soils; when does SUMI-ITO need a load test?
  3. Certification of self-deploying buildings: no code path recognises a sensor-proven latch as equivalent to an inspected fastener; needs engagement with state factory-built programs and ICC.
  4. Wind limits during unfolding: a half-folded thick-panel shell is a sail; gust envelopes and hold poses must be validated full-scale.
  5. Robot payload-to-mass ratio: ETH and MIT research robots were limited by actuators; TSURU's 25–35 kg body vs 5–15 kg payload target is unverified.
  6. Business model risk: every construction-robot company that tried to be builder + manufacturer + tech failed or shrank (Katerra, Veev, Mighty, Diamond Age, ICON layoffs); ORIJO must prove a narrow paid product first.
  7. Throughput claims (AUAR 180/yr, Reframe 250/yr, Cuby 200/yr) are claims; no audited micro-factory utilisation data found.
  8. Lunar: sintered regolith is weak (about 3.4 MPa) and energy-hungry; the pressure boundary must still be launched, so TSUKI remains SPECULATIVE.
  9. Refold reliability across many relocations: there is no field dataset of buildings folded and unfolded more than about 10 times outdoors.
  10. No code path exists yet for a folding, robot-deployed shell; nearest analogues are ICC/MBI 1205 plant certification and design-by-testing. [gaps-2026–10–29]
検10 Verification

Checked adversarially.

Claims re-checked
34
Confirmed
24
Corrected
19
Unverifiable
7

Mostly sound. No fabricated sources or DOIs found: every DOI checked resolves to the cited paper and every checked number matched its source with the right unit. Errors were in status and framing: Factory OS was marked active though under a WARN notice; Mighty Buildings was marked closed though only for sale; the Boxabl listing and '<1 h assembly' were stated as fact; Hadrian's '>70 m²/h' is conditional and its 'first US homes' was one test home; the McCallum 3.4 MPa came from cubic blocks, not bricks; Built Robotics scale was out of date (>3 GW, not >2 GW); TenFold TRL 7 was overstated (now 6). Two sizing totals were off by a few person-hours.

Corrections made (19)
  • numbers.n04 Hadrian X lay rate>300 (>70 m²/h) | 2023 record; >285 blocks/h effective on a 751-block test in 2025 → >300 blocks/h (USA-format CMU) | Record from FBR's testing and calibration programme (announced 2023–05–08), not an outdoor site build; '>70 m²/h of wall' applies only to the largest block format Hadrian is designed for (conditional, not measured). 2025 factory acceptance test: 751-block structure at >285 blocks/h effective; FBR claims peak up to 360 blocks/h.
  • numbers.n05 Hadrian priceAUD 7.8M (about USD 5.09M) → AUD 7.8M (article also gives 5,088,759 without a currency label, presumably USD)
  • numbers.n14 BoxablBoxabl; on-site assembly <1 h (claimed); 2024 net loss about USD 51M → Boxabl; about 744 manufactured vs about 285 delivered and installed by 2025–08–19; 2024 net loss about USD 50.95M. The '<1 h on-site assembly' figure is not stated in the cited sources (unverified).
  • projects.pr-boxabl outcome744 built vs 285 delivered by mid-2025; about USD 51M 2024 net loss; Nasdaq listing at about USD 3.5B EV (2026). Unfolding is solved; demand, permits and site work are not. → About 744 built vs about 285 delivered by 2025–08–19; about USD 51M 2024 net loss; SPAC combination with FG Merger II Corp. implying about USD 3.5B enterprise value (350M shares x USD 10). Completion of the Nasdaq listing was not confirmed in the sources read. Unfolding is solved; demand, permits and site work are not.
  • projects.pr-factoryos status/unitsactive | Built 3,000–4,000 units, yet filed a WARN notice for all 280 employees in Feb 2026 citing a pipeline gap and loss of capital funding. Big plants die when the order book stalls. → at_risk | About 4,000 units since 2017 (company-reported, 90% affordable), yet filed a WARN notice on 2026–02–13 covering up to all 280 employees, citing lack of new business, a pipeline gap and loss of capital funding. The company said it was not planning to close; the outcome after the 60-day window was not verified. Big plants die when the order book stalls.
  • failures HarbingerHarbinger/Factory OS WARN notice for 280 staff (Feb 2026) despite 3,000+ units → Harbinger/Factory OS WARN notice for up to 280 staff (Feb 2026) despite about 4,000 units (closure not confirmed)
  • projects.pr-mighty statusclosed | Put up for sale after restructuring and layoffs in Jan 2025. Proprietary materials plus a factory plus a builder role burned cash. → for_sale (Jan 2025; later outcome unverified) | Put up for sale via Rock Creek Advisors in Jan 2025 after a restructuring that released staff; no closure was reported in the source. Proprietary materials plus a factory plus a builder role burned cash.
  • projects.pr-built scale2018- (solar work, >2 GW reported) → 2016- (in the field since 2016; >3 GW of solar installed, >50,000 operating hours, 40+ sites, reported June 2026)
  • projects.pr-hadrian 'first US homes in Florida'Record >300 blocks/h (2023); commercial sales at AUD 7.8M after 2025 factory acceptance; first US homes in Florida. Ten years from patents to sales. → Record >300 blocks/h in a 2023 test programme; factory acceptance (>285 blocks/h on a 751-block build) and sale to select partners at AUD 7.8M from Oct 2025; first US build was a single test home for PulteGroup at TerraWalk at Babcock Ranch, Florida (reported Feb 2025). About nine years from patent priority to sales.
  • numbers.n21 McCallum 2026Laser-sintered lunar simulant interlocking bricks → Binder-free laser sintering of lunar regolith simulant; strength measured on sintered cubic blocks (interlocking Lego-like bricks were designed separately; their strength is not given in the abstract)
  • papers.p-mccallum2026 findingBinder-free laser sintering of lunar simulant into Lego-like interlocking bricks; peak compressive strength about 3.4 MPa. → Binder-free laser sintering of lunar simulant; designs Lego-like interlocking bricks reassemblable without mortar; sintered cubic blocks reach a peak compressive strength of about 3.4 MPa.
  • BUILD-S7 how_it_works strength wording...weak in tension (about 3.4 MPa peak compression in the 2026 brick study) → ...about 3.4 MPa peak compressive strength for sintered cubic blocks...
  • numbers.n20 CivDot precision8 mm → 3/100 ft (vendor states 8; 3/100 ft is about 9.1) ft (mm)
  • BUILD-S1 volumetric trl_whyTechnically proven (Factory OS delivered thousands of units), but repeated financial failure. → Technically proven (Factory OS/Harbinger reports about 4,000 units), but repeated financial failure (Katerra, Veev; Harbinger WARN notice Feb 2026).
  • BUILD-S2 CivDot key_number8 (3/100 ft) mm → 3/100 ft (vendor: 8 mm; about 9.1 mm by conversion)
  • BUILD-S4 Hadrian trl_whyHas built several homes in Australia and the US; first commercial sales only from 2025. → Test builds in Australia and one test home for PulteGroup in Florida (2025); factory acceptance and first sales only from Oct 2025.
  • BUILD-S5 TenFold TRLPILOT, TRL 7 → PILOT, TRL 6
  • orijo_design.sizing_reference.hotel_6key L2about 74–78 at L1; about 40 at L2 with robotic piling → about 74–78 at L1; about 42–44 at L2 with robotic piling
  • orijo_design.sizing_reference.farm_moduleabout 64–72 at L1 → about 63–71 at L1 (formula result; module list lacks the MIURA-W counted)
Could not verify (7)
  • item: Boxabl '<1 h on-site assembly' · note: not stated in the cited HousingWire or Built Offsite articles; left labelled unverified
  • item: Boxabl Nasdaq listing completed in 2026 · note: sources confirm only the SPAC deal with FG Merger II and the implied ~USD 3.5B EV
  • item: Harbinger/Factory OS status after April 2026 · note: WARN notice confirmed; closure or rescue not verified (serp cap exhausted)
  • item: Mighty Buildings fate after the Feb 2025 sale process · note: only the for-sale status is confirmed
  • item: LUNARK mission year 2020 · note: SAGA page gives Sep-Nov only; already labelled in the file
  • item: p-romu2020 findings · note: DOI resolves to Melenbrink, Rinderspacher, Menges, Werfel, Autom. Constr. 120:103391 (2020), but the abstract was not available in OpenAlex; finding text not re-verified
  • item: Hadrian 'first homes' wording · note: only one US test home (PulteGroup, Florida) confirmed; plural removed

Certification route

  • C-B1USA (where the appendix is adopted) · optional appendix; adoption varies

    IRC Appendix AW (2021) / BM (2024) 3D printed building construction + UL 3401

    Only materials listed in a UL 3401 report of findings may be used (UpCodes snippet; ICC text 403)

    For ORIJO: Relevant only to optional printed plinths/hearths; the folded shell is not a printed structure.

  • C-B2USA · AC509 approved 2023–08; ICC standard work since 2023–10 (1150–2026 listing unverified)

    ICC-ES AC509 and ICC 1150 (3D automated construction, concrete walls)

    Evaluation report per acceptance criteria (full text restricted)

    For ORIJO: Shows the layered route a novel robot-made system follows: optional code appendix (2021 IRC AW), evaluation-service acceptance criteria (AC509, 2023), consensus standard (ICC work from October 2023); the route was still being assembled in 2025–2026.

  • C-B3USA (adopted e.g. by Virginia and Utah) · 2021/2023 editions; rejected for the 2024 IBC per advocacy source

    ICC/MBI 1200 (design/fabrication), 1205 (inspection/regulatory compliance), 1210 (MEP)

    Initial plant certification with 100 percent inspection of at least one module, then a quality-assurance programme with third-party inspection

    For ORIJO: The most likely US path for factory-folded ORIJO shells: certify the micro-factory and the fold passport, not each site. Each licensed micro-factory carries its own plant certification cost.

  • C-B4USA · current edition April 2025

    ICC-ES AC358 helical pile systems

    Evaluation report for the pile system (full text restricted)

    For ORIJO: Robots that drive ASHI screw piles must log install torque so the pile capacity claimed in the evaluation report is evidenced per pile.

  • C-B5Netherlands precedent (Eindhoven 3DCP bridge) · precedent

    Design by full-scale testing

    Certification through physical load testing when calculation methods do not exist

    For ORIJO: Plan the KASANE hinge and YOSHI vault certification as test-based (G1 hinge cycles + full-scale load and water tests).

典11 Sources

95 sources, linked.

Raw data: /d/layers/build.json. Search log and method: Evidence.

  1. src-veev-tcPrefab home builder Veev reportedly shutting down after reaching unicorn status last year (TechCrunch, 2023–11–27) · news · read
  2. src-veev-hwVeev Falters: Lessons Learned For Homebuilding Innovation (HousingWire, 2023–12–01) · news · read
  3. src-katerra-cdWhat does Katerra's demise mean for the contech and modular industries? (Construction Dive, 2021–10–13) · news · read
  4. src-katerra-wikiKaterra (Wikipedia) · news · read
  5. src-icon-tc25ICON, a builder of 3D-printed homes last valued around $2 billion, cuts about 25% of staff (TechCrunch, 2025–01–09) · news · read
  6. src-icon-3dp25ICON Secures $56M Amid Construction 3D Printing Sector's Growing Pains (3DPrint.com, 2025–02–17) · news · read
  7. src-icon-nasaNASA Has Awarded ICON $57.2M to Develop 3D Printed Construction on the Moon (3Dnatives, 2022–12–02) · news · read
  8. src-rpd-pvmagRobotic solar pile driver three times faster than humans (pv magazine USA, 2023–04–27) · news · read
  9. src-boxabl-hwBoxabl valuation at $3.5 billion tests housing fundamentals (HousingWire, 2026–07–30) · news · read
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  12. src-reframe-trr26Reframe Systems raises $40M to scale its robotic microfactories for home building (The Robot Report, 2026–08–31) · news · read
  13. src-reframe-trr25Reframe Systems wants to use robotic microfactories to change how we build homes (The Robot Report, 2025–10–07) · news · read
  14. src-cuby-hw24Cuby Breaks Ground On Mobile Micro Factory U.S. Home Model Output (HousingWire, 2024–04–02) · news · read
  15. src-cuby-hw23Some Build Homes In Factories; Cuby Builds Factories To Produce Homes (HousingWire, 2023–09–25) · news · read
  16. src-botbuilt-tcBotBuilt wants to lower the cost of homebuilding with robots (TechCrunch, 2023–12–27) · news · read
  17. src-factoryos-vsVallejo modular home manufacturer tells officials it may close, laying off all employees (Vallejo Sun, 2026–02–13) · news · read
  18. src-mighty-3dpHouse 3D Printing Company Mighty Buildings up for Sale (3DPrint.com, 2025–01–17) · news · read
  19. src-hadrian-am23FBR's Hadrian X robot sets new speed record laying construction blocks (Australian Manufacturing, 2023–05–08) · news · read
  20. src-hadrian-ie25World's most advanced bricklaying robot completes factory tests (Interesting Engineering, 2025–10–13) · news · read
  21. src-skovsporet-naOne apartment per day: Student housing gets 3D printed crazy fast (New Atlas, 2025–12–12) · news · read
  22. src-canvas-cdDrywall finishing robot saves time, prevents injuries (Construction Dive, 2021–06–16) · news · read
  23. src-life-tcSuccessful failure: Sierra Space's inflatable habitat blows up as planned (TechCrunch, 2024–01–22) · news · read
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  26. src-termes-seasRobotic construction crew needs no foreman (Harvard SEAS, 2014–02) · news · read
  27. src-beam-wikiBigelow Expandable Activity Module (Wikipedia, citing NASA CRS-8 overview, The Verge, SpaceNews) · agency · read
  28. src-esa-dshapeBuilding a lunar base with 3D printing (ESA, 2013–01–31) · agency · read
  29. src-cobod-bod2COBOD BOD2 product page (specifications) · company · read
  30. src-dusty-siteDusty Robotics FieldPrinter product page · company · read
  31. src-civ-siteCiv Robotics home page (CivDot+) · company · read
  32. src-kewazo-siteKEWAZO home page (LIFTBOT case studies) · company · read
  33. src-cr-siteConstruction Robotics home page (MULE customer testimonials) · company · read
  34. src-lunark-sagaSAGA Space Architects — LUNARK project page · company · read
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  38. src-boxabl-pat-familyBoxabl / Build IP patent family surfaced by Google Patents search: US11718984B2 Liftable foldable transportable buildings; US20230383522A1; US20220219441A1 Enclosure Component Fabrication Facility · patent
  39. src-solarfarm-patUS20240165814A1 Automated solar farm construction (mobile robots install posts, racks and PV) · patent
  40. src-sam-ytRobotic bricklayer builds houses 3x faster than humans (YouTube; SAM description: 800–1,200 bricks/day vs 300–500 for a mason) · video
  41. src-hadrian-ytNext-Gen Hadrian X completes first outdoor test build (FBR, YouTube) · video
  42. src-tenfold-ytPrefab buildings by Ten Fold Engineering build themselves in eight minutes (YouTube) · video
  43. src-icon-phoenix-yt27 Ft-tall 3D-printed Structure Built by Multi-story New Robot (ICON Phoenix, unveiled 2024–03–12; YouTube) · video
  44. src-icon-titan-ytIntroducing the Titan Print System (ICON, YouTube, ~5 months before access) · video
  45. src-icon-raise-yt3D-printed housing company Icon raises $200 million at a $1.4 billion valuation (YouTube news clip, ~2 weeks before access) · video
  46. src-icon-wolf-yt3D-printed homes get built by robots in Texas neighbourhood (YouTube; 'some 100 homes') · video
  47. src-icon-army-ytMore 3D-printed Barracks for the U.S. Army by ICON ($62.8M OTA; YouTube) · video
  48. src-built-exo-ytBuilding New Tools: the Exosystem — Built Robotics (YouTube) · video
  49. src-built-sick-ytHow Built Robotics Drives 10,000 Solar Array Piles Automatically with SICK (YouTube) · video
  50. src-armadas-ytNASA Ames Space Robots Assembling Structures — ARMADAS (YouTube) · video
  51. src-auar-newsAUAR raises GBP 5.1M to expand robotic micro-factories (tech.eu, 2025–06–04) · news
  52. src-built-xlabBuilt Robotics, Penn xLAB to develop physical AI for construction (The Robot Report, 2026–06–16) · news
  53. src-maxspace-voyagerVoyager makes 'low eight figures' investment in Max Space (Via Satellite, 2026–03–09) · news
  54. src-1872-bw1872 Launches Autonomous Steel Fabrication Factory Model in Cincinnati and closes $15M seed (Business Wire, 2026–07–22) · news
  55. src-apiscor-3dpUS's largest homebuilder D.R. Horton invests in construction 3D printing startup Apis Cor (3DPrint.com, 2024–03–13) · news
  56. src-concept-v3Anyground research/v3/concept.json (ORIJO mechanisms M01-M13, modules, typologies, value chain) · standard · read
  57. p-melenbrink2020On-site autonomous construction robots: Towards unsupervised building (Automation in Construction 119:103312, 2020) · paper · read
  58. p-romu2020Autonomous anchoring for robotic construction (Automation in Construction 120:103391, 2020) · paper · read
  59. p-petersen2019A review of collective robotic construction (Science Robotics 4(28):eaau8479, 2019) · paper · read
  60. p-werfel2014Designing Collective Behavior in a Termite-Inspired Robot Construction Team (Science 343(6172):754–758, 2014) · paper · read
  61. p-keating2017Toward site-specific and self-sufficient robotic fabrication on architectural scales (Science Robotics 2(5):eaam8986, 2017) · paper · read
  62. p-giftthaler2017Mobile robotic fabrication at 1:1 scale: the In situ Fabricator (Construction Robotics 1:3–14, 2017) · paper · read
  63. p-dorfler2019Mobile robotic fabrication beyond factory conditions: case study Mesh Mould wall of the DFAB HOUSE (Construction Robotics 3:53–67, 2019) · paper
  64. p-buchli2018Digital in situ fabrication — Challenges and opportunities for robotic in situ fabrication in architecture, construction, and beyond (Cement and Concrete Research 112:66–75, 2018) · paper
  65. p-garciadesoto2018Productivity of digital fabrication in construction: Cost and time analysis of a robotically built wall (Automation in Construction 92:297–311, 2018) · paper · read
  66. p-kam2025Comparison of dusty robotics and traditional layout methods (Construction Robotics, 2025) · paper · read
  67. p-zhang2021aesAn autonomous excavator system for material loading tasks (Science Robotics 6(55):eabc3164, 2021) · paper · read
  68. p-gregg2024Ultralight, strong, and self-reprogrammable mechanical metamaterials (Science Robotics 9(86):eadi2746, 2024) · paper · read
  69. p-park2023solleSOLL-E: A Module Transport and Placement Robot for Autonomous Assembly of Discrete Lattice Structures (IEEE/RSJ IROS 2023, 2023) · paper · read
  70. p-smith2024Self-Reconfigurable Robots for Collaborative Discrete Lattice Assembly (IEEE ICRA 2024, 2024) · paper · read
  71. p-zhu2024Large-scale modular and uniformly thick origami-inspired adaptable and load-carrying structures (Nature Communications 15, 2024) · paper · read
  72. p-davila2019Robotics and automated systems in construction: Understanding industry-specific challenges for adoption (Journal of Building Engineering 26:100868, 2019) · paper · read
  73. p-opgenorth2024Multi-scalar robotic fabrication system for on-site press gluing in multi-storey timber buildings (Automation in Construction 165:105774, 2024) · paper · read
  74. p-huang2026Constraint to capability: a multi-robot screw-press gluing micro-factory for scalable and efficient multi-story timber slab assembly (Construction Robotics, 2026) · paper · read
  75. p-mccallum2026Additive manufacturing of lunar regolith for reconfigurable building blocks toward lunar habitation (npj Advanced Manufacturing, 2026) · paper · read
  76. p-puzatova2022Large-Scale 3D Printing for Construction Application by Means of Robotic Arm and Gantry 3D Printer: A Review (Buildings 12(11):2023, 2022) · paper · read
  77. p-zhang2025nrct3D printing technology in concrete construction (Nature Reviews Clean Technology, 2025) · paper
  78. p-ahmed2023A review of '3D concrete printing': Materials and process characterization, economic considerations and environmental sustainability (Journal of Building Engineering 66:105863, 2023) · paper
  79. p-rubenstein2014Programmable self-assembly in a thousand-robot swarm (Science 345(6198):795–799, 2014) · paper
  80. p-ardiny2015Construction automation with autonomous mobile robots: A review (IEEE ICROM 2015, 2015) · paper · read
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  83. p-chen2018Construction automation: Research areas, industry concerns and suggestions for advancement (Automation in Construction 94:22–38, 2018) · paper
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  85. p-jiass2024hingeDesign and evaluation of compliant hinges for deployable thick origami structures (Journal of the IASS 65(4), 2024) · paper
  86. src-hadrian-cp25PulteGroup deploys block-laying Hadrian X robot on Florida home (Concrete Products, 2025–02–21) · news · read
  87. src-irc2024-appbmICC Digital Codes — 2024 IRC Appendix BM 3D Printed Building Construction (formerly 2021 IRC Appendix AW); search snippets only, page 403; UpCodes snippet: only materials listed in a UL 3401 report may be used · code
  88. src-3dprint-icc-walls3DPrint.com (19 Feb 2025) ICC to Set Standards for 3D Printed Walls · news · read
  89. src-icces-ac509ICC-ES AC509 3D Automated Construction Technology for 3D Concrete Walls (approved Aug 2023, editorially revised Aug 2024 per purchase link) · code · read
  90. src-icc1150-storeICC Store listing: ICC 1150–2026 Standard for Automated Construction Technology for 3D Printing Walls (search snippet only, not read) · code
  91. src-evstudio-icc-mbiEVstudio (31 Oct 2024) ICC/MBI 1200, 1205 and 1210 Standards for Offsite Construction · trade · read
  92. src-thau-1205Tiny House Alliance USA (1 May 2026) How ICC/MBI 1205 will raise the price of housing (advocacy; quotes 1205 plant-certification text; reports Virginia and Utah adoption) · advocacy · read
  93. src-icces-ac358ICC-ES AC358 Helical Pile Systems and Devices (April 2025 edition per purchase link) · code · read
  94. src-vasilic2025Vasilic (2025) Standardization Aspects of Concrete 3D Printing, RILEM Technical Letters (abstract page read) · paper · read
  95. src-salet2018Salet, Ahmed, Bos et al. (2018) Design of a 3D printed concrete bridge by testing, Virtual and Physical Prototyping (abstract via Elicit) · paper