@SteveKirby hi, i use methyl hydrate to clean the bed (when pre-heated) and use 50-60c for pla.. my pla experience for the nozzle is around 205-220c using the temperature tower calibration and retract tower for each type/color of filaments.. those calibrations are in the top menu in the Cura slicer.. i always do that when i open a new type of filaments not already saved..