SUNLU High Speed PETG Filament 1.75mm 4KG Bundle, 3D Printer Filament 4kg, 1kg per Spool, Pack of 4, 4 Colors, Sky Blue+Mint Gre

FAQ:  ? Why cant the filaments stick to the build bed easily? ? Please do 3 steps checking! ? Temperature Please check the temperature(bed and nozzle) settings before printing and set it suitable. ? Building Bed Please check if the bed is level, make sure the nozzle doesnt too far or too close to the bed. ? Speed Please check if the printing speed of the first layer is too fast(Recommended: 20-40mm/s).   Recommended Settings: ? Nozzle 210C - 235C (410F - 455F) ? Bed 70C - 80C (158F - 176F) ? Printing Speed: 40-80(mm/s) ? These settings are for 0.4mm nozzle, it may be different with different diameters nozzle Notes ? Please insert the filament into the side holes after use to avoid tangles. ? Feel free to message us if you have any questions about the filament. ? Please stored the 3D printer filament in a sealed bag or box after using it.