Nylon (polyamide) is a high-performance thermoplastic commonly used in 3D printing, suitable for technologies such as FDM and SLS. FDM printing typically requires a temperature of 240–280℃, with a heated bed (60–100℃) and enclosed environment to reduce warping, and has a shrinkage rate of 0.5%–1.5%. Its printed surfaces are slightly rough but can be smoothed via sanding or vapor polishing. Printed parts exhibit high strength (tensile strength 50–80MPa), excellent abrasion resistance (wear coefficient 0.3–0.5), and temperature resistance (long-term use at 100–150℃). Glass fiber/carbon fiber-reinforced variants (e.g., PA6-GF30) can achieve strengths exceeding 120MPa, making them suitable for manufacturing functional mechanical components like gears and bearings. However, nylon has high hygroscopicity (water absorption rate 8%–12%), requiring drying prior to printing, and pure nylon has lower toughness (elongation at break 15%–30%). SLS processes rely on powder sintering, with higher equipment costs.

13-Nylon_Nylon PA11