SLS stands for Selective Laser Sintering, an additive process that uses lasers to fuse nylon powder into solid parts. Parts are nearly isotropic, fully dense, and typically capable of end-use applications. This process requires no support material and has minimal geometry limitations, meaning that even the most complex parts are trivial to print.

The Formlabs SLS Design Guide is a great primer on the capabilities and limitations of the process. We find that certain design rules, such as minimum feature size and wall thickness, can often be pushed past the limits stated in that document, but they represent a good starting point for success. We’re happy to answer specific design questions any time!

Currently, we offer Nylon 12. We find that this material provides a sufficient balance of strength, detail, and part accuracy to satisfy a vast majority of our customers and end-use applications.