The History of 3D Printing – From First Ideas to Printed Houses
In brief: 3D printing was born in the 1980s, when Charles Hull patented stereolithography (1986) and founded 3D Systems. Over four decades the technology travelled from prototyping small parts to printing entire houses – today whole neighbourhoods stand built layer by layer, and the newest direction is construction from natural materials such as clay, earth and hemp concrete.
3D printing, also known as additive manufacturing, produces a physical object by depositing successive layers of material based on a digital model. It reverses the classic logic of manufacturing: instead of removing material, the machine adds it exactly where it is needed.
What Exactly Is 3D Printing?
A 3D printing process consists of four elements: a three-dimensional computer model (CAD), a slicer – software that divides the model into layers and generates tool paths, a 3D printer, and material. That material can be plastic, resin, metal or gypsum powder, and even concrete, clay or biological substances containing living cells.
The 1980s – The Birth of the Technology
The father of 3D printing is considered to be Charles Hull, an American engineer who in 1984 developed stereolithography (SLA) – a method of curing liquid resin with laser light, layer by layer. He was granted the patent in 1986, and that same year founded 3D Systems.
In the late 1980s two further technologies emerged:
- FDM (Fused Deposition Modeling) – developed by Scott Crump, who founded Stratasys. The same principle – extruding material through a nozzle – would later underpin the printing of houses.
- SLS (Selective Laser Sintering) – sintering powder with a laser, developed by Carl Deckard at the University of Texas.
The 1990s and 2000s – Maturing in Industry
For the next two decades, 3D printing was an expensive technology reserved for industry. Large corporations – aerospace, automotive, medical – used it mainly for rapid prototyping. The high cost kept the technology firmly out of the ordinary user's reach.
2009 – Patent Expiry and the Consumer Revolution
The breakthrough came when the key patents on FDM technology expired. This opened the door to the RepRap project (initiated at the University of Bath) – the idea of a 3D printer capable of printing parts for itself. Affordable printers from MakerBot and Prusa appeared, and 3D printing reached workshops, schools and homes.
Not Just Houses – Where Else 3D Printing Changed the World
- Medicine – personalised prosthetics, implants tailored to a patient's anatomy, organ models for surgical planning, and even bioprinting with living cells.
- Aerospace and the space industry – lightweight, durable components that cannot be made by traditional methods. 3D-printed parts already fly in rockets and aircraft.
- Automotive and manufacturing – rapid prototyping, on-demand spare-part production, structural optimisation.
- Design and architecture – furniture, decorative elements and architectural models with impossible-to-achieve forms.
3D Printing Enters Construction
A pioneer of construction printing was Behrokh Khoshnevis of the University of Southern California, creator of the Contour Crafting method. Worldwide fame came with the Chinese company WinSun, which in 2014 announced it had printed 10 houses in under a day. A year later it showcased a five-storey building and the first printed villa.
The First Printed Houses – A Review of Global Projects
- USA – Wolf Ranch (Texas): ICON built a development of 100 homes printed in 3D – one of the largest projects of its kind in the world.
- The Netherlands – Project Milestone (Eindhoven): Europe's first 3D-printed house for commercial rental, with real tenants moving in.
- Europe – COBOD technology: the Danish company printed the first building in Europe (Belgium), the first in Germany, and the tallest printed building in Saudi Arabia.
- Dubai aims to have a significant share of new buildings created using 3D printing.
How Is a 3D-Printed House Made? Step by Step
- Digital design (CAD/BIM) – architects and engineers determine wall geometry, layer thickness and installation routing.
- Preparing the mix – the mix (concrete, clay or hemp concrete) must be fluid enough to pass through the nozzle, yet dense enough to hold its shape.
- Layer-by-layer printing – a large-format printer (gantry or robotic arm) extrudes material, creating characteristic ribbed walls. This stage now often takes only hours.
- Reinforcement and installations – steel reinforcement is fitted and services are routed through left channels.
- Finishing – roof, window and door joinery, finishing works.
Two Main Schools of Construction Printing
On-site printing (in situ) – the machine raises walls directly at the target location. Prefabrication – elements are printed in a hall, then transported and assembled on site. Each has its advantages.
The Ecological Turn – 3D Printing with Natural Materials
Concrete has a high carbon footprint. That is why more and more research teams are reaching for natural materials – the direction closest to the philosophy we uphold at Neodynamic.
The Italian company WASP built GAIA in 2018 – the first house printed from a mixture of earth, straw and lime. In 2021, the TECLA project was created – a house of about 60 m², printed entirely from local clay and water in roughly 200 hours, with minimal energy use and almost zero waste.
The same track leads straight to hemp concrete – a material known for thousands of years that provides excellent insulation, a healthy mould-free indoor microclimate, and hemp crops absorb enormous amounts of CO₂.
3D-Printed Houses in Poland
Poland's first building printed in 3DCP technology was erected in 2019 in Otrębusy near Warsaw – about 7 m², created in just 13 hours from 6 tonnes of concrete. In 2022, the country's first on-site print was completed.
- In 2024, an industry association bringing together business, industry and academia was founded to standardise and popularise 3D printing in construction. Neodynamic has been a member of this association for almost two years.
- Also in 2024, Poland's first water tank – 7 metres tall – was printed and successfully passed leak-tightness tests.
- Home-grown solutions based on natural and recycled materials are developing, including low-emission mixes from local clay.
Why Is 3D Printing Changing Construction?
- Speed – key stages shrink from weeks to hours or days.
- Lower costs and less waste – material is placed exactly where it is needed.
- Freedom of form – organic shapes and curves impossible in traditional construction.
- Repeatability and precision – millimetre accuracy eliminates many human errors.
- Ecology – combined with natural materials, a path to low or even negative carbon footprint construction.
Challenges and Limitations
- Regulations and standards – building law in many countries is not keeping pace with the technology.
- Structural reinforcement – automatically laying steel reinforcement in parallel with concrete printing remains an engineering challenge.
- Scale and height – mostly low buildings are printed today. High-rises are a research direction for now.
- Weather conditions – on-site printing depends on temperature and humidity.
- Social acceptance – a mental barrier that fades as the technology matures.
The Future: Technology Meets Nature
The next chapter is being written at the intersection of advanced technology and materials in harmony with nature. This is precisely the philosophy that guides Neodynamic: we combine 3D printing with hemp concrete and other natural materials so that the houses and structures we create are at once modern, durable, healthy for their occupants and friendly to the environment.
See what we can print for you →
Frequently Asked Questions (FAQ)
- Who invented 3D printing?
- Charles Hull, who in 1984 developed stereolithography (SLA), patented it in 1986 and founded 3D Systems. In parallel, FDM (Scott Crump) and SLS (Carl Deckard) emerged.
- When was the first printed house built?
- High-profile printed buildings appeared around 2014, when WinSun announced printing several houses in a very short time.
- Are there printed houses in Poland?
- Yes. Poland's first 3D-printed building was erected in 2019 in Otrębusy near Warsaw. In 2024 an industry association was founded – Neodynamic has been a member for almost two years.
- What materials are houses printed from?
- Most often special fast-setting concrete mixes. Natural materials – clay, earth and hemp concrete – are playing an ever greater role.
- How long does it take to print a house?
- The wall-printing stage itself takes from a dozen or so hours (small structures) to several days (larger buildings), plus time for design, mix preparation and finishing.
- Is a 3D-printed house durable and warm?
- Yes. Printed walls – especially of hemp concrete – have very good thermal and acoustic insulation and a healthy, mould-free microclimate.
- Is 3D printing of houses ecological?
- It can be. The technology reduces waste and material use. Combined with natural raw materials, it makes building with a low or negative carbon footprint possible.