PETG optimized temp tower with custom Gcode

Custom coded simple temp tower optimized for PETG. ranges from  260 down to 235c using M109 S code to ensure best results. 

this speific model was printed using sunlu high speed matte petg. I found that 245c works best for me with 70c bed on textured pei. slow first layer full speed after that. has overhangs, stringing and cone test. changes at the transition layer and holds until next temp is reached.