Skips in the layer lines

Snapmaker 2.0 Product Feedback
1

I have a model 2.0
I have been having issues lately with my printer creating little gaps in the the infill and in the print. What I’ll hear is a popping sound coming from the head and then it doesn’t dispense the filament for about a half a second or less, leaving a gap in the run.
I have been running the printer pretty frequently for about 2 months, I’d say at least 2/3 times a week. This problem only started about 2/3 weeks ago.

  • I have dried out the filament multiple times to a Relative Humudity of 25%
  • I have tried different types of filaments, both of PLA and of ABS.
  • I have cleaned the outside of the nozzle with a wire brush, getting the buildup off the head.
  • I have tried to clean the inside, but it comes out clean, as far as I can tell.
  • I checked the laser head to make sure it is at the proper offset.
  • I have also swapped heads to the second hot end head that the part came with.
  • I have fiddled with the retraction distance, going from 4mm to 10mm.

I have run out of ideas and have no idea why this is happening.
Has anyone had this issue?

2

If it pops there is moisture in the filament, try drying for longer (like 6h at 50°C for Pla).

2 Likes
3

I would agree with you, but I just did that and it’s still popping and skipping sections.

It also looks like the filament isn’t coming out of the nozzle straight, it has a tendency to curl as it exits the nozzle.

Any other ideas?

4

Popping has to be water / humidity. Pla will not pop otherwise.

Skipping lines is maybe caused by bad feeding. You are using a dryer; can the filament run free without resistance?