3d printing SLS: selective laser sintering
Selective Laser Sintering (SLS) technology has one of the largest production potentials. Support structures are not required in the SLS process, which is a big advantage of this technology. The SLS system we use has a unique solution: open parameters, thanks to which we can optimize the technological parameters, adapting them to your application.
What are the benefits of SLS?
![](https://fibometry.com/wp-content/uploads/2023/01/indeks2.png)
![Druk 3D - technologie SLS](https://fibometry.com/wp-content/uploads/2023/01/532cd8c9a0a9676038a0834a8027d289.jpg)
Benefit #1
Allows the use of different types of powders to produce items with a variety of mechanical properties.
![Druk 3D technologie SLS](https://fibometry.com/wp-content/uploads/2023/01/ec208a58ffd4ffe2ad25d150aa547618.jpg)
Benefit #2
Does not require additional support for printing, making it possible to print complex geometry without having to remove additional support structures.
![Druk 3D technologie SLS](https://fibometry.com/wp-content/uploads/2023/01/60df1c80b411a61bf84f5754a1f69259.jpg)
Benefit #3
It produces prints with high precision and also good surface quality, making it ideal for the production of complex parts.
![Druk 3D technologie](https://fibometry.com/wp-content/uploads/2023/01/b9cce3a73dd5991f096648d585280a7b.jpg)
Benefit #4
It enables rapid prototyping of sustainable materials, which is particularly beneficial in the design and prototyping process.
Materials
![](https://fibometry.com/wp-content/uploads/2023/01/indeks2.png)
-
Durable engineering material
-
Biocompatibility according to EN ISO 10993-1 & USP/level VI/121 °C
-
Food Safe certificate in accordance with European Directive 2002/72/EC (excluding alcoholic products)
-
High chemical resistance
-
The possibility of using advanced post-processing - more information in postprocessing
Other names: PA2241FR (trade name). PA12 polyamide-based material with additives ensuring non-flammability of the material. The material is most commonly used in aviation and railways and wherever non-flammability is required.
-
Fire resistance class: CS 25 / JAR25 / FAR 25 § 25-853 (a) App. F Part I, ABD 0031
-
Good mechanical properties
-
High chemical resistance
-
High impact strength
-
Eco
-
More flexibility compared to PA12
-
Cytotoxicity certificate according to DIN EN ISO 10993-5
-
Low density
-
Low melting point
-
Relatively easy process of removing the lost model from the foundry mold
-
Reduced amount of ashes during burn out process
Costs and Lead Time
![](https://fibometry.com/wp-content/uploads/2023/01/indeks2.png)
Costs and Lead Time
-
Part volume (space in the machine working chamber)
-
Material used
-
Production series size
-
Occurrence of complex spaces in terms of cleaning them from unseaed powder
-
Choosing express execution options
-
Applied postprocessing
Want to optimize costs?
Want to optimize costs?
SLS Design Principles
![](https://fibometry.com/wp-content/uploads/2023/01/indeks2.png)
With SLS, we recommend that you follow these rules:
![Zasady druk 3D](https://fibometry.com/wp-content/uploads/2023/01/hole-diameter.png)
Minimum hole diameter 1.5 mm
![Zasady druk 3D](https://fibometry.com/wp-content/uploads/2023/01/wall-thickness.png)
Minimum wall thickness 1 mm
![Zasady druk 3D](https://fibometry.com/wp-content/uploads/2023/01/moving-parts.png)
The minimum clearance for moving parts is 0.2 mm
![Zasady druk 3D](https://fibometry.com/wp-content/uploads/2023/01/positioning-pins.png)
Positioning pins should be at least 2 mm thick/medium
![Zasady druk 3D](https://fibometry.com/wp-content/uploads/2023/01/dimensional-tolerance.png)
The dimensional tolerance in SLS is +/- 0.3 % of the dimension measured at the lower limit +/- 0.3 mm
![Zasady druk 3D](https://fibometry.com/wp-content/uploads/2023/01/horizontal-bridges.png)
In SLS it is not recommended to use massive cross-sections (above 4 mm). Of course, we produce massive walls (above 4 mm), but we take an individual approach to this
![Zasady druk 3D](https://fibometry.com/wp-content/uploads/2023/01/escape-holes.png)
In confined spaces (if unseasted powder needs to be removed), use technical holes to evacuate the powder
Not sure about your design?
Not sure about your design?