Wielka ReklamaSigns & Large Format Print

Product prototype – how to get a test model made quickly

Successive versions of a 3D-printed housing prototype on a desk
Prototype iterations · illustrative visualisation

First decide what the prototype is for

The most expensive prototype is the one that answers the wrong question. Before we print anything, we ask what needs to be tested. Broadly there are three kinds of model:

Looks-like model. It has to look like the product – for photos, investor presentations, customer tests or a trade show. Shape, colour and surface finish matter; the inside can be hollow. This usually means sanding and painting.

Works-like model. It has to function: clips must clip, the electronics must fit the housing, a handle must take the load. Appearance comes second. We choose a tough material and the right print orientation.

Ergonomic and size model. It shows whether the thing sits well in the hand, fits on the shelf, in the drawer or in the box. A quick print with thick layers, or even a block of XPS foam, is often enough.

If you know which one you need, you save straight away – you do not pay for painting a model meant for strength tests, or for a tough material in a model meant for photos.

In practice companies often go through all three: first a quick size model, then a functional one for testing, and finally a nicely finished piece for presentation. Each is cheaper when it is not trying to be everything at once.

From idea to model, step by step

  1. Input. Send what you have: a CAD file, a dimensioned drawing, a sketch, a photo of a similar object, or the object itself for scanning.
  2. 3D model. If there is no file, our modeller draws one (approx. €45 net/h). For unusual shapes we start with 3D scanning of an existing object.
  3. Sign-off. We show the model on screen or as a render. Changes cost least at this stage.
  4. First print. We print on one of our 7 3D printers. A small part takes a few hours, a larger housing often runs overnight or longer.
  5. Your test. You check what works and what does not. Keep notes specific: 'clip too tight', 'hole 2 mm too low'.
  6. Iteration. We adjust the model and print the next version. Several versions are normal in prototyping.
  7. Final model. The last version can be finished for presentation – sanding, primer, painting to colour (approx. €34 net/h of finishing).

One full cycle from a ready file usually takes 2–3 working days. With several iterations, plan realistically for 2–3 weeks.

Hands measuring a prototype with digital callipers
Checking prototype dimensions · illustrative visualisation

Which technology for which prototype

Prototyping technologies in our workshop
TechnologyWhen we use itIndicative cost (net)
3D printing – standard printerhousings, brackets, mechanisms, small modelsapprox. €14 / h + material
3D printing – large formatlarge parts in one pieceapprox. €26 / h + material
3D foam cutting (XPS)large forms, size models, propsapprox. €55 / h
CNC routing of boardsflat parts, panels, bases, displaysfrom approx. €1.65 / m of tool path
Lasersmall parts in acrylic, plywood, feltfrom approx. €0.80 / m of tool path
Card cutting and creasingpackaging and POS display prototypesapprox. €0.70 / m of cut, approx. €0.50 / m of crease
A3 test printchecking artwork on the final materialapprox. €13 each

We work with FDM, i.e. printing from filament. If a prototype needs a surface without visible layers, we finish it by hand. Where jewellery-level detail is needed, we will tell you honestly that resin printing is the better choice.

What a prototype costs – a worked example

Take the housing for a small electronic device: two parts screwed together, approx. 180 g in PETG, approx. 9 hours of printing. The client has only a dimensioned drawing.

  1. Modelling the housing from the drawing: approx. 4 h × €45 = approx. €180
  2. Printing: 9 h × €14 = €126
  3. Material: 180 g × €0.10 = approx. €18
  4. Job set-up and print start: approx. €14
  5. First version in total: approx. €340 net

The second version after changes is much cheaper – modelling often takes one hour instead of four, while printing costs the same. If you then need 10–50 pieces for user testing, a series discount of approx. 15% applies.

How 3D printing is priced in detail is covered in our guide how much does 3D printing cost.

What you bring to the table has the biggest effect on cost. A checked, ready STEP file means you pay for little more than printing. A sketch on paper means several hours of modelling before the machine even starts. So send everything you have at first contact – even photos of competitors' products or a hand drawing with dimensions.

Prototypes in advertising: displays, packaging, signs

As a print house and sign maker we often build prototypes that clients do not think of as 'prototyping':

  • counter display or shelf stand – one piece in card or PVC with full artwork, before you order a run for dozens of shops,
  • packaging – a box mock-up cut and creased on the plotter, to check the size and how the product looks inside,
  • a letter or part of a logo – one illuminated letter or section of an emblem, to judge colour and light before the whole sign goes into production.

It is a cheap way to avoid an expensive mistake on the full run. More on display models in our guide scale models and mock-ups; the service itself is described on the prototypes and mock-ups page.

Have a specific project?Describe in a few sentences what you need — we reply with a price and a lead time. Office Mon–Fri 8:00–16:00 (CET).
Send a short brief →Call +48 455 455 460

Questions and answers

Other questions we often get

Can you design a product from scratch?

We model in 3D from your brief, sketches and dimensions. We are not an engineering consultancy, though – we do not do strength calculations or electronics design. For technical products it works best when the design assumptions come from you or your engineer.

Will a 3D-printed prototype be as strong as an injection-moulded product?

Usually not. An FDM print is weaker between layers, and the materials differ from moulding grades. For testing fit, ergonomics and appearance it is more than enough; strength test results should be interpreted with care.

What about confidentiality?

If your company requires a non-disclosure agreement, send it with your enquiry – we will settle it before any files change hands.

Can I order a short run instead of a single prototype?

Yes. With a farm of several printers we print a dozen or a few dozen pieces in parallel, and for 10–50 pieces we give a discount of approx. 15%. At several hundred pieces it is worth comparing the cost with other production methods.

What material should the prototype be made of?

For looks-like and ergonomic models PLA is usually enough – it is cheap and accurate. If the prototype has to cope with heat, carry a load or stand outdoors, we choose PETG or ASA, and TPU for flexible parts. You will find a comparison in our guide to 3D printing materials.

Will I get the model file after the prototype is made?

File handover is agreed at the start of the job, together with the format – STL is enough for further printing, STEP is useful if your engineer will edit the model in CAD software.

WIELKA REKLAMA · SINCE 1991 · SERVING THE EU AND THE UK

We can do it for you — from artwork to installation.

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