Skip to main content: Selective Laser Sintering Fine Detail Resolution (SLS-FDR) – With the laser sintering material PA11
The picture shows a large laser-sintered ant in black, as well as a small green laser-sintered ant the size of the head of a match, which is intended to illustrate the possibilities of the new FDR technology.

Selective Laser Sintering Fine Detail Resolution (SLS-FDR) With the laser sintering material PA11

Layer thickness

40 µm

Typical component dimension

from 5x5x5 mm to 40x40x40 mm


Polyamide 1101


best detail resolution, smooth surfaces and excellent edge sharpness, excellent mechanical properties

Lead time

2–5 working days, daily system start

Tiny details make a big difference. Fine Detail Resolution (FDR) sintering technology from EOS enables extremely intricate structures with highly refined surfaces. And this on stable components with a minimum wall thickness of around 0.22 mm. With this world first, 1zu1 is the first user of a new technology in the world market.

The finest laser meets the right material

This process is based on three components: a laser with an ultra-fine beam, the low layer thickness and polyamide PA1101. The advantages: This plastic is particularly flexible, tough and high resolution. These properties produce the best detail imaging with smooth surfaces and excellent edge sharpness.

Not only do you benefit from high-precision prototype components, but also possible applications for series production. These range across a variety of applications. Typical examples range from filter units and fluid guides to electronic components. The tolerances achievable with FDR technology correspond to those we know from injection molding, even for the smallest parts. 50 µm and less is possible. The coordination of details is carried out individually for each customer. The component is optimized for the process to ensure that the application fits the series.

In addition, the PA1101 FDR material is insensitive to elevated ambient temperatures. This further expands the possible application areas and allows, among other things, tests during live operation.

 Polyamide EOS 1101 (PA1101)Polyamide EOS 2200 (PA)Polyamide EOS 3200 (PA-GF)Polypropylene (PP01)
 SLS-FDRIn comparison: SLS  
Hardness [Shore D]75758059
Bending modulus of elasticity [MPa or N/mm²] 1700 ±802900684
Tensile modulus of elasticity [MPa or N/mm²]16001900 ±502850 ±350650
Elongation at break [%]30-4020 ±37 ±224
Vicat softening temperature [°C] 165 ±2166-179>108
Density [g/cm³]0.990.931.220.89
Tensile strength [MPa or N/mm²]4850 ±149 ±219.5
Notch impact strength [kJ/m²]6.53.4 ±
Impact strength [kJ/m²] 35 ±82131
Glass ball weight fraction in [%]  40 
ColorabilityExcellent, not RALExcellentLimited, not RALNot colorable
Chemical smoothingExcellentExcellentExcellentNot possible

The material data have been verified by the Fraunhofer Institute or are based on the manufacturer's data sheets.

1zu1 as a pilot partner

And the best part? 1zu1 is also a pilot partner of EOS for this groundbreaking technology. As such, we have thought ahead, tinkered and tested for you and thoroughly researched the possibilities that will benefit you.

The result is components that are even more precise and accurate than anything previously achieved by any other sintering technology for plastics. In the past, we used to say “close to the original” – now it meets customer requirements and is used for application as the original.

Your advantages

  • Ideal for new applications: finest screens, small channels or individual mini components realized quickly and precisely
  • Plastic: PA1101
  • Suitable for prototypes and series production with functions that are not possible in injection molding
  • 5-40 mm large components with highest detail resolution
  • Minimum wall thickness of 0.22 mm
  • Twice as fine components as with previous SLS technologies (comparable to SLA parts)
  • Production quantities from one piece to 1,000 pieces
  • Components with the tolerance requirements of the series


Fine Detail Resolution (FDR) technology - for high-precision prototypes and series part production in the SLS process. The tolerance field TG5 according to DIN 16742 can be achieved with this technology as standard from the very first component. We can guarantee you the tolerance group TG4 according to DIN 16742 if you optimize components and process together with 1zu1 in iteration steps.


Tolerance groups1 to 3 mm> 3 to 6 mm> 6 to 10 mm> 10 to 18 mm> 18 to 30 mm> 30 to 50 mm
TG4+- 0,05+- 0,08+- 0,09+- 0,11+- 0,13+- 0,15
TG5+- 0,08+- 0,11+- 0,14+- 0,17+- 0,20+- 0,23

Order technology samples

SLS - Selective Laser Sintering, a topic that is becoming increasingly important in 3D printing. To give you a “1-to-1” understanding of our expertise in this area, we have developed four sample boxes. See, touch, feel - SLS up close, powered by 1zu1. 


Selektives Lasersintern (SLS-FDR)

Advice tailored to your needs

At 1zu1, we help you find the perfect solution by combining the best technology with a wide range of materials. And this is implemented in the shortest possible time and with the highest technical precision.

Challenge us. What can I do for your project?

Sebastian Fink

area manager CH / LI / Vlbg
T +43 5572 33 333-839

“When it comes to perfect prototyping, it’s safe to say that we are the right address.”

Sebastian Fink is a trained instrument maker and plays the bass clarinet – his personal anti-stress program.

Stefan Rädler

area manager Germany
T +43 5572 33 333-842

» For perfectly implemented ideas, I propose new technological paths with my customers.«

In motocross and enduro, Stefan Rädler is on difficult paths.

Klaus Pichler

area manager Austria
T +43 5572 33 333-838

»As a cyclist, I know that excellent technology is the key to speed – and therefore to success..«

Klaus Pichler spends his free time in the saddle – he and his road bike conquer Austria’s mountains with endurance and the right pedal stroke.

Sebastian Fink

area manager CH / LI / Vlbg
T +43 5572 33 333-839

“When it comes to perfect prototyping, it’s safe to say that we are the right address.”

Sebastian Fink is a trained instrument maker and plays the bass clarinet – his personal anti-stress program.

Surface finishes

Here at 1zu1 we can treat master models, duplicated parts and serial parts with special surface techniques according to customer requirements . We finish the prototypes and serial parts via EDM texturing, high gloss, special effects (metallic, silver, partial) or subsequent varnishing.

We can also accommodate individual color samples or color requests (RAL, NCS, Pantone). For this purpose, we offer a wide range of surface treatment processes in manual finishing, depending on the initial technology. Each process can be applied individually, in combination, partially or fully, according to RAL or NCS.

The possibility of individual printing, laser marking as well as hot foil stamping is also available at 1zu1 in-house. Put us to the test!


Currently 10 SLS systems are available for plastic parts using different materials. We are continuously investing in new machine technology. On all machines, we can achieve construction layers of a maximum of 100 µm and a wall thickness of up to 0.45 mm. As a result, previously visible layers increasingly disappear; clean and smooth side walls are created, and fine or large parts can be produced with even greater precision. We work with all materials on a daily basis. Our standard lead time is 3 days. Larger dimensions or quantities on request.

SLS systemsType designationConstruction layer thicknessSystem construction spaceWall thicknessMaterials
EOSFORMIGA P100100 µm200 x 250 x 330 mm0.45 mmRubber
EOSFORMIGA P110100 µm200 x 250 x 330 mm0.45 mmPA2200, PA3200-GB, PP01
EOSFORMIGA P110 Velocis100 µm200 x 250 x 330 mm0.45 mmPA2200, PA3200-GB
EOSP396100 µm340 x 340 x 600 mm0.65 mmPA2000, PA3200-GB
EOSP500100 µm500 x 330 x 400 mm0.5 mmPA2200
EOS 40 µm200 x 250 x 125 mm0.22 mmPA1100

Read more

To the blog
The picture illustrates what is possible with FDR technology using an ant the size of a match head.

Fine Detail Resolution (FDR)

New technology for the most intricate structures

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