Selective Laser Sintering Process

Selective Laser Sintering Process used to create accurate scale model of Chambord ChateauSelective Laser Sintering Process


First developed and patented in the mid 1980’s the Selective Laser Sintering process involves the creation by additive layer technology of physical models using a carbon dioxide laser on a bed of powdered material.

“I would like to thank you and your colleagues for all your help this year…The LS large intake manifold you made for us, greatly helped with our engine development programme.”
                                                                                                                                         University of Ulster

The Selective Laser Sintering process has become a popular tool for product designers and engineers, thanks to the processes ability to rapidly convert complex CAD geometries into physical working models. With LS capable of producing parts from commercially available materials such as Nylon there has also been significant growth in the number of companies turning to Selective Laser Sintering to meet limited run manufacturing requirements.


Unsure if the Selective Laser Sintering process  right for your project? View the process comparison table.


Selective Laser Sintering Process

  • The Selective Laser Sintering process begins with the conversion of customer generated 3D CAD data into a sliced STL file using proprietary software. Once created the STL file is then sent to print on the Selective Laser Sintering machine.


  • The machine warms up (with LS material heated to just below melting point) prior to the feed bed rises (typically by <0.1mm) and the levelling roller pushes fresh powder across the build platform/part bed.


  • The first layer is then traced out by a CO2 laser which melts and fuses the LS material upon contact. Once the first layer has completed the build platform/part bed drops by a pre-set amount.


  • The feeder bed rises and a fresh layer of powder is swept along the build platform. The next layer is then traced out and the process repeats layer by layer until the model has “fully grown”.


  • Upon completion the model is left to cool before being removed and any loose material brushed away (as the Selective Laser Sintering process requires no support structures)


Video Overview

Machine Capacity 

The Selective Laser Sintering process allows for the production of large and small prototype components in a range of tough, highly functional materials.


Please note that the build platform dimensions represent single part builds, larger components can be “split and bonded” by our team of highly trained in-house model makers.

For further details please speak to a member of our sales team on 028 9070 6940.

MachineBuild PlatformTolerance*
EOS P390320 x 320 x 600mm±0.2/100mm
Formiga P100190 x 240 x 320** ±0.2/100mm

 *Due to the nature of Rapid Prototyping we cannot guarantee part tolerance, figures provided above are expected tolerances only.
**Formiga build dimensions are material specific – figure quoted is guideline only.


“Just wanted to drop you a line and say thanks very much for the excellent service. We received the models and they were great. It is always a pleasure dealing with a company that delivers what you ask for on time and within an acceptable budget. I would certainly recommend you!”

Customer Testimonial - Monodraught