Thanks in advance for any help you may have to offer. As the story goes for most - I am having great success printing in PLA, and wanted to try my hand at PETG printing.
I've spent hours tweaking my profile in S3D; getting temps, extrusion multiplier and retraction settings dialed in, z-offset calibrated, etc. The first few layers are printing great, but after about an hour into the print - the extruder seems to stop, and I start getting 'air prints'. When I reheat the tool, I can push material through the nozzle, so I don't think it's clogged...
My gut tells me that the filament may be getting stripped; perhaps too much retraction distance\speed (6.5mm @ 30mm\s), and\or filament diameter changes (or is dirty). I also read that too many retractions in a short period can cause stripping - so I enabled the length threshold in S3D\Advanced tab.
I am using a CR-10, and eSun PETG filament. I am new enough to this hobby, that I have not paid attention to measuring filament diameter much, but several random readings with my calipers show 1.70-1.72 diameter... is this the problem? (Any recommendations on PETG suppliers? I read good things about eSun, but this is my first spool. All my PLA was Hatchbox).
I have updated my slicer profile and am running the print again, but would like to prepared with other ideas if this doesn't so the trick.
What are the other obvious solution to try? What other settings in S3D should I pay attention to?
Also, I recently changed my bowden tube to Capricorn xs. The install went as I would have expected - it felt solid and snapped into place. What would I look for to see if there are any issues on that part?
Thanks in advance,