I Have PETG Problems

[BillM]

So I have had my Snapmake for a few months now. I love it. It works well with PLA but with PETG It leaves strings between areas when it moves and leaves lumps everywhere. The print itself is fairly good otherwise.
Could it be the filiment retraction isn’t right?
I would appreciate any feedback on this.
Thanks

[clewis]

I haven’t worked with PETG personally, but there are several posts on the forum about it needing additional cooling. Particularly with respect to bridging and stringing.

Cura Bridge settings for PETG

Lol I think I set it on low and put it 4 feet away to somewhat mimic realistic cooling. I do recall bridging being challenging. Not just with this machine either. Here’s a couple tests I ran, before and after the cooling mod I made. Cooling can make a big difference. I think this was with the default Cura bridging settings. [image] That was in PLA, not PETG like you’re trying, so if there’s any material property differences that are in play here I don’t know anything about that, never used…

Unable to get ANY PETG results

the initial layer was 240 i think then goes 220, 225, 230, 235, 240, 245, 250, 255, 260 [image] i see what u mean tho about the order that does make sense 255 came out the best on this filament, but i was having issue removing the supports lol si i went with the 240 instead

If you can share some pictures and your current settings, more knowledgable users can give better advice.