I'm having issues getting PETG to print nicely. I have encountered pretty much every issue because when I fix one thing another issue pops up. I see people saying that you should "just copy your PLA settings", but that definitely did not work for me, with issues from bed adhesion, stringing, globbing, and especially issues with the top layers. At the moment I am getting very decent quality prints from PETG, however the one issue that remains is the top of the print.
Infill looks fine, it is printing fast, so that is where I would expect the filament to glob to the extruder. But that happens on the very first top layer. The printer goes over the honeycomb, and the filament gets oozy and starts forming in globs on the edge of each inner wall. This takes a few layers to print over, and even after 5 layers at 0.25 mm layer height it has holes.
Software: I am using Slic3r PE 1.41.2, on Repetier Host 2.1.3.
Printer: Wanhao DI3 or Monoprice Maker Select Plus.
Filament: Amazon Basics branded Navy Blue PETG.
- 40 mm/s print speed,
- 0.2 mm layer height,
- 70 °C heat bed,
- 235 °C hot end,
- 15 % honeycomb infill,
- 20 % - 50 % automatic fan speed.
I would like to solve this without increasing infill percentage because the parts are already quite dense with 15 % honeycomb and I don't want to waste material and time.