Hello! I’ve had this problem with my printer for a little while now, and it’s my big blocker for printing at decent speeds. I don’t recall the printer doing this new, but I couldn’t point at what firmware it popped up at because I was printing round things for a while and this doesn’t show up on t…

Maybe this helps you: [image] First Print with Snapmaker 2.0 Snapmaker Showcase Calibrate your extruder: Calibrate your Linear advance (I would suggest you a k-value between 0.08 and 0.1):

@Rhynri I agree with xchrisd it sounds like a linear advance calibration issue. Let us know if it fixed your issue. Happy tuning, -Atom

@xchrisd , @Atom - That sounds exactly like the problem, having read up on it. I wonder if that value was changed during a firmware update, because I’m very certain this wasn’t an issue I was facing when I first started printing. Either way, many many many thanks for your suggestions!

Yes, pretty much everything stored internally gets reset with a firmware update.

Oh, my bad, I meant if the default changed. I never set it myself.

@Atom , @xchrisd - First print with a modified value (set it to .1). The default was set to .22. Seems to have improved things somewhat although it looks like it needs to be reduced further. I’m wondering why the stock value is set so high.

I think they haven’t printed much, and when very slow, with this machine…

So, went back at it. Set the k-value to .08. Made a stellar first layer. [image1] Then this happened. 60mm/sec, K0.08 [image0] I managed to get a passable print at 60mm/s only by going to K0 and then up to 120% extrusion and overheating the hot end to 215 (so it would be kind of goopy and n…

honestly, i have never seen a print look quite like that. the fact that its at the corners makes me think its still a linear advance issue, but i’m not sure.

I’m beginning to think it might be a warranty issue. On the following print, the hot end jammed. Opening the side door I was able to very easily push filament through the nozzle myself, so I don’t know why it would have jammed. I’ve also gotten weird “stuttering” on linear extrusions. I took a b…

Underextrusion in Corners

Snapmaker 2.0 (3-in-1)

xchrisd August 10, 2020, 9:59pm 2

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Underextrusion in Corners

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