Which process for what?
In short: FDM for robust and cost-effective parts, SLA for details and surfaces, SLS for complex functional parts, MJF for series, SLM (metal) for the highest loads.
Robust & cost-effective
Functional parts, fixtures and housings made of engineering thermoplastics.
To FDM →Detail & surface finish
Finest structures and smooth surfaces for visual samples and precision parts.
To SLA →Complex & durable
Functional parts without support structures, ideal for small series and clips.
To SLS →Series & function
Dense, uniform PA12 parts – ideal for small and larger series.
To MJF →High-strength & lightweight
Components in stainless steel, aluminium or titanium, including internal channels.
To SLM (metal) →Not sure? Find your process in 5 questions
Load, surface, shape, quantity, size: answer five short questions and get an instant first recommendation – we make the final choice together in the quote.
Start the guide →The processes compared side by side
For orientation. The exact recommendation always depends on your part.
| FDM | SLA | SLS | MJF | SLM (metal) | |
|---|---|---|---|---|---|
| Strength | good | medium | very good | very good | very high |
| Surface | layer lines visible | very smooth | matte, slightly rough | matte, fine | rough, can be finished |
| Level of detail | medium | very high | high | high | high |
| Support structures | needed for overhangs | needed | none | none | needed |
| Cost per part | low | medium | medium | low for series | high |
| Ideal for | Brackets, gauges, housings | Visual samples, precision mechanics | Functional parts, small series | Series parts | Highly loaded parts, lightweight design |
We recommend the process. You decide.
Send us your part or describe what it has to do. You will get a clear recommendation with reasons – and alternatives for comparison if you wish.
How do I find the right 3D printing process?
Ask yourself four questions: How heavily is the part loaded? How important is the surface? How complex is the shape? How many parts do you need? For robust, affordable parts FDM is usually right. If fine details and smooth visible surfaces matter, SLA. For complex, durable functional parts without support structures, SLS. For dense PA12 parts in series, MJF. And when plastic is no longer enough, SLM (metal).
There is often more than one good solution. That is why we recommend a process in the quote, explain our choice and name alternatives for comparison on request. With the “Choosing a process” guide you get a first recommendation in five questions.
Rules of thumb
| Robust and affordable | FDM |
|---|---|
| Details and surface | SLA |
| Complex and durable | SLS |
| Series in PA12 | MJF |
| Highest load, lightweight design | SLM (metal) |
Want to turn your idea into a finished part?
Send us CAD data, a photo, a sketch or the original part. We check feasibility, process and material and get back to you with an assessment and a quote.