Review on Polymaker PC Flame Retardant PC Filament 2: Ensuring Fire Safety in 3D Printing by Aravind Joshi

Incredibly, there's finally a 3D Filament that performs better than expected. Had to downgrade from 5 to 3 as it's not as durable as the PLA print I made from the same material. I print at 260 for the hot end and 100 for the bed. Prints smoothly and consistently. Unfortunately the spool is too big to fit in the Raise3d case but I use a drill to wrap it around an empty spool that fits. To be honest I've tried so many different threads including Raise3d's materials and this is the best I've come across so far. Advice that seems to help a lot. I am working with a Buildtak plate and it has warped/separated. I sanded it with 60 grit sandpaper and cleaned with coarse steel wool, then wiped with a microfiber cloth. Holds great now.