... for SLS you'll best use particles in the size of 10 microns or smaller of a melting material (thermoplastic, but with stronger lasers even ceramic or metal is common).
So if you find some PLA powder, this should work.
For flexible parts you'll better search for a flexible basis material ...
Viktor
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Aufruf zum Projekt "Müll-freie Meere" - [
reprap.org] -- Deutsche Facebook-Gruppe - [
www.facebook.com]
Call for the project "garbage-free seas" - [
reprap.org]
