After reading this thread I decided to try PETG – I got some eSun natural. I’m using a Mini and I didn’t have problems with adhesion to the buildplate at 85C, or with removal once cool. I did about 10 prints ranging from 1 to 17 hours each.
I did have a problem with fine stingy hairs – I basically had to shave my parts afterward. I tried printing with the hotend at 235, 240, and 248 and the fur was lessened at the higher temperature but still prevalent. At all temperatures, I got some burnt blobs of plastic stuck to the prints too. I turned the cooling fan up to 100% for the entire length of the prints.
I also had trouble with it making a mess of the nozzle – after just one print the nozzle would be seriously covered in goo that I had to clean by hand. After a few prints I just disabled the auto-wiping feature and manually retracted and cleaned the nozzle – the autowiping couldn’t deal with the amount of gummy residue left on the nozzle and I was getting bad reads during Z-height probing.
Anyway, I do like the flexibility of this plastic and not a single piece cracked or warped like I’d have with ABS – even overnight prints where the ambient temperature hit the low 40s (I’m printing in my unheated garage). I’m not in love with the look of PETG or its tactile qualities, but I’m having a lot more trouble with ABS now that it is getting cold, and I can accept what I don’t like in exchange for prints that work.
Any suggestions for fighting the hairiness? Burnt blobs? Do I just have to accept that this filament is more messy and requires more frequent manual cleaning, or is there a way around that?