Frequently asked questions
We have gathered here the questions we are asked most often: what 3D concrete printing makes possible, where the limits of size, material and durability lie, and how a project moves from sketch to finished object.
3D-printed concrete does not behave like cast concrete in every respect, and a number of things, such as watertightness, reinforcement, tolerances and colour, are always decided project by project.
If you cannot find the answer or your object seems unusual, write to us. For an initial assessment, dimensions, quantity, place of use and a couple of photos or sketches are usually enough.
Project start and cooperation
Do I need a finished 3D model?
No. For an initial discussion, a dimensioned sketch, a photo or a clear description is enough. Production does, however, require a verified digital model and toolpath.
Can Print Betoon be involved at the sketch or preliminary design stage?
Yes, and this is often the most sensible time. An early printability check helps to adapt the geometry for production before the model is finalised and reduces later rework. This feedback does not replace a structural design or certification.
How is responsibility divided between the designer, the main contractor and Print Betoon?
The allocation of responsibilities is set out in the brief and the order confirmation. Print Betoon is responsible for the agreed production and the documented process; the structural design, compliance with requirements and test methodology remain the responsibility of the designer or another appointed responsible party, unless otherwise agreed in writing.
What can be printed, and how large
What objects can be printed?
The most suitable forms are hollow, curved and those that can be built up in layers. Large horizontal surfaces, very thin details and steep overhangs need a different solution or separate parts.
How large can an object be?
The printer's work area is 7000 x 3000 mm and the permitted height is approximately 300-1000 mm depending on position. The size of an object made in one piece is further limited by its weight, lifting, transport and installation.
Do you also produce small series?
Yes. Once the model and toolpath have been approved, the same production file can be used for repeat production. For a series, possible variations in material batch, process and curing are taken into account, and the characteristics to be checked and the quantity are agreed.
Surface, accuracy and appearance
How accurate is the result?
Accuracy depends on the size of the object, the material, the weather, the print direction and setting. The required tolerances are agreed before production; precise surfaces may need post-processing.
Will the layers be visible?
Yes. A horizontally layered surface is a natural characteristic of the technology. The surface can be partly treated by agreement, but a completely smooth result requires additional work.
Can I choose the colour?
The base colour of the material is cement grey. Tinting and surface coatings are possible depending on the project, but an exact colour and consistency between batches require a sample and approval.
Use, durability and structure
Is the product suitable for outdoor use?
It may be, if the material, geometry, drainage, base solution, surface protection and place of use have been designed for it. Suitability for outdoor use is not automatically assumed on the basis of the material's name alone.
Is a printed container watertight?
Not automatically. The interlayer structure and cracks may let water through. Watertightness requires a separate base, sealing and surface protection solution and an agreed test.
Can 3D-printed concrete be reinforced?
Depending on the project, internal cavities, ribs, anchors, a fillable core or a separate reinforcement solution can be designed. The solution depends on the loads and the designer's requirements.
Do you produce load-bearing building elements?
Only on the basis of a separately approved structural design, an agreed allocation of responsibilities and the necessary tests. The examples on this website are not automatically load-bearing structures.
Lead time, price and ordering
How long does production take?
The lead time depends on how ready the model is, the need for testing, the quantity, printing time, curing, finishing and transport. The lead time is confirmed in the quotation.
What does the price depend on?
The price is affected by modelling, material, printing time, weight, testing, post-processing, fixings, lifting, transport and installation. For an initial estimate, send us the dimensions, quantity, place of use and a file or sketch.
Can Print Betoon be involved at the sketch or preliminary design stage?
Yes, and this is often the most sensible time. An early printability check helps to adapt the geometry for production before the model is finalised and reduces later rework. This feedback does not replace a structural design or certification.
Do you also produce small series?
Yes. Once the model and toolpath have been approved, the same production file can be used for repeat production. For a series, possible variations in material batch, process and curing are taken into account, and the characteristics to be checked and the quantity are agreed.
How is responsibility divided between the designer, the main contractor and Print Betoon?
The responsible persons are set out in the brief and the order confirmation. Print Betoon is responsible for the agreed production and the documented process; the structural design, compliance with requirements and test methodology remain the responsibility of the designer or another appointed responsible party, unless otherwise agreed in writing.
Can I withdraw from a custom order within 14 days?
For a distance contract, a consumer generally has a 14-day right of withdrawal, but under the cases set out in law this does not apply to goods made to the consumer's specifications or clearly personalised. The exact status is stated in the quotation and order confirmation.