How do I submit my file? our handy checklist for 3D printing

From digital design to physical model: it all starts with the right file. Avoid delays and extra costs with this practical guide to submitting your 3D, CAD or BIM data correctly.

The decision has been made: you’re getting a 3D-printed model of your project. The next step is to transfer the digital data to our studio. Although modern 3D printers are incredibly advanced, they cannot directly ‘read’ what an architect has on their screen. A digital model is built to create renderings or perform structural calculations; a 3D printer needs a model that complies with the laws of physical reality.

To ensure the process from enquiry to production runs as smoothly and quickly as possible, we at 3D Maquettes have compiled the key submission specifications and tips for you.

What file types do we accept?

Our software and team of draughtsmen can handle a wide variety of source files. Whether you have a ready-made 3D model, a flat construction drawing or just digital imagery, you can supply us with the following formats:

  • 3D & Print files: STL and OBJ (Ideal if you already have a print-ready model).
  • Technical CAD files: STP/STEP (Commonly used in industry and engineering).
  • 2D drawings & documents: PDF (For floor plans, elevation views and construction drawings).
  • Images & visualisations: PNG and JPG/JPEG (For mood boards and reference material).

What if you don’t have a digital file at all?

Don’t currently have an official 3D model or digital construction drawing of your project? Don’t worry, we can still help you. In that case, please provide the best possible photos.

Try to take sharp photographs of the object or building from as many different angles as possible (think of a clear front, back, sides and close-ups of crucial details). The more complete and clearer your photographic material is, the faster and more accurately our draughtsmen can sketch the situation to create a perfectly fitting 3D model.

The 3 golden rules for a print-ready model

Do you want us to be able to get straight to work on your model? Then pay attention to the following three basic elements when exporting or modelling:

1. Make the model ‘Watertight’

In a digital design, a wall can consist of two separate, infinitely thin surfaces. For a 3D printer, ‘infinitely thin’ does not exist. The printer needs to know what is ‘inside’ and what is ‘outside’, i.e. where the machine should deposit plastic and where it should not. Ensure that all volumes are closed. There must be no holes in the surfaces.

2. Take the minimum wall thickness into account

When we scale down your building or machine (for example, to 1:100), all parts become a hundred times smaller. A pane of glass 4 millimetres thick becomes 0.04 millimetres at scale. That is thinner than a human hair and cannot be printed.

  • Tip: In the file you provide, make fragile parts such as fence bars, thin columns or glass facades slightly thicker than they are in reality. Our engineers always check this during the digital optimisation process.

3. Remove ‘Invisible’ Interiors

A 3D printer builds the model from the bottom up. If your BIM model is full of internal details such as pipework behind the walls, furniture on closed-off floors or complete insulation layers, the printer will attempt to produce all of this. This results in unnecessarily long print times and extra material costs.

  • Tip: Strip the model of all elements that are not visible from the outside (or through the windows), unless, of course, it is a specific open-work technical model.

 

‘Proper preparation of the digital file is half the battle. It saves time in the preparation phase, meaning your model will be on the meeting table sooner.’

What if you only have 2D drawings?

Don’t have a 3D model, just flat 2D drawings, PDFs or site plans? Don’t panic. Our in-house draughtsmen specialise in translating flat data into a three-dimensional model. In that case, please clearly specify the height dimensions and desired volumes. We’ll build the model from the ground up for you, ensuring it still rolls straight out of the printer flawlessly.

Let us check your file

Are you unsure whether your model is suitable for 3D printing? Feel free to send it to us via info@3dmaquettes.nl or a file transfer service. We’ll carry out a free, no-obligation technical check and advise you on the best course of action. That’s how we pave the way from bits to a tangible result.

 

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