Any tips to help fill in gaps on first layer?

Bambu Lab Software
1

Hey all! I’m fairly new to 3D printing, so appologies in advance if there’s some simple setting i’m missing here. :smiley:
I’m creating some pixel art artwork, and on certain sections of my models, there’s some gaps in the corners i’m trying to fill.

The images illustrate the problem areas with a 0.4mm nozzle and the 0.2mm nozzle. I thought the smaller nozzle would solve the problem, but they’re still there, although they are a bit less noticeable.

IMG_7574
IMG_7574577×627 130 KB

IMG_7575
IMG_7575545×545 101 KB

The things i’ve tried are setting my wall generator to Arachne, increasing my infill/wall overlap, changing my infill direction, and changing my flow ratio to 1.1 to help fill in the tiny holes.

None of those changes seemed to make a huge difference on my 0.4mm nozzle (which i’m hoping to use for these since the extra print time on 0.2 is just so insane haha) so i’m wondering if there’s anything else I can try?

Any thoughts, or being pointed in the right direction would be appreciated! Thanks! :smiley:

1 Like
2

I usually also reduce the speed for the first layer to 10-20mm/s. Did you try that?

There is also “slicing mode” option “close holes” as, but I’m not sure if that would help. I have no experience.

3

Thanks! The close holes option didn’t work and altered the model, but i’ll try printing the first layer even slower and see what happens.

4

Given what you already tried, I think I would experiment a little with K values as well. I’m not sure that could be it, but it’s easy enough to try it out (eg. if calibrated to 0.020, try 0.010 and 0.030). Please keep us updated!

Oh, and another suggestion; Since many of your pixels are free from gaps, I would watch the slicer preview very carefully (zoomed in, and moving the sliders a G-code line at a time) on a good one and on a bad one, and try to understand the difference.