I am getting reasonably consistent prints but they aren't perfect.
The long version of my tips for using PETG are:
- A Bambu Lab printer doesn't hurt since it's so nicely calibrated and idiot-proof
- Clean the build plate with dish soap and dry fully. I haven't found any need for glue stick on a textured plate.
- Using a filament that has a profile available from the manufacturer for Bambu lab printers
- Printing with the filament in the dryer with the dryer running during printing
I can print PLA at 100mm/s with .25mm layers...but PETG I don't go much over 65mm/s give the same line width/layer height.
Since getting things dialed in I switched to primarily printing PETG. Although, I have no issue printing PLA, PETG or ABS when needed.