Review on SUNLU PETG 3D Printer Filament - Super Neat Spool, White, Strong And Accurate 1.75Mm Dimension, 1KG (2.2LB) Weight, 320 Meters Length, +/-0.02Mm Tolerance by James Davis

It prints easily and has strength when it’s finished. My only complaint with it is that there are a lot of small imperfections maybe due to moisture or air bubbles in the filament. I’ve now tested at both a 0.4mm and 0.8mm nozzle. Both result in a rice crispy crackling sound during printing. That also results in tiny imperfections and I can’t get a visually smooth surface from it. My purpose with this was to make a functional part with strength and heat resistant. It does that and held its strength inside a hot car sitting in 90 degrees all day. I wouldn’t recommend this if you need a perfectly smooth clean print. See the close-up photo I attached to see what I’m talking about. It’s minor on a 0.4 nozzle printing very slowly but, it was much more noticeable on a 0.8 nozzle printing a pretty normal speed.