Materials and Post Processing
We primarily use PETG, ASA, ABS, Woodfill PLA, Silk PLA, Polylite Polycarbonate, and Nylon-6 with Glass Fibers.
-We are still settling on a TPU provider and currently using Amazon Basics TPU.
For post processing, we heat treat all of our applicable materials, such as PETG, Polylite Polycarbonate, and Nylon 6 with with Glass Fibers. This is a crystallization process, commonly referred to as "Annealing" (not true annealing,) that brings our products to their glass temperature to relieve stresses from the 3d printing process.
We run the parts in a homemade curing oven that brings them a degree or two above their glass transition temp and a few degrees below. It cycles there repeatedly for a standard amount of time depending on the material.
Photo from Prusa3D depicting microscope view of PETG at temperatures 20C (left) and then at 120C (right)