We've been doing some printing with PETG filament on Ender 3 Pro printer and the result were awful:
Here are settings we used:
- Extruder: 240 °C
- Bed: ~70 °C (± 10 °C)
- Speed: 80 mm/sec
There are a few types of problems that we had:
- Initially filament did not stick to the bed - those 3 items in the middle of the picture are example of this issue. This got fixed by increasing temperature of bed to 80 °C.
- At some point a piece would get dis-attached from the bed and would move around together with the extruder around - two prints in the upper right corner of the picture were cancelled for this reason.
- Models are very rough, like a cheaply made snowball - that tiny model in the upper left is suppose to be a cattle-bell. Could you tell?
Additional info
Filament that we used indicated
- extruder temperature 230-240 °C
- printing speed 40-90 mm/sec
- no info about bed temperature
Question(s):
- What are some optimal, tried and tested options for printing PETG? (Temperatures, speed, etc)
- What are some caveats/difficulties of working with PETG to look out for? (For example, I've read that PETG likes slower speeds. Is that true?)
- Is it possible that the model of 3D printer does not work well with this type of filament? (I don't have much experience printing so I can't know)