Hi all,
My X1 runs smoothly and produces overall very good results. There is only one little problem.
Prints with Bambu basic PLA on standard settings leave very small holes or gaps in the top surfaces (see pictures).
I have already tried to set the line width from standard 0,42mm to 0,3mm, but it made it slightly worse.
Any suggestions what to do?
Have you done a flow calibration?
Thanks for the quick reply. I did some tests and flow rate compensation helps the problem on bigger surfaces.
With smaller surfaces where there is only a short straight before the next turn, it still is a problem.
Furthermore does the slicer have a problem with very pointy corners. It actually leaves gaps (faint yellow circle in pic below). I tried all the fill in patterns. Any ideas?
If you don’t have any overhangs in your model it might be best to turn on Arachne
Unfortunately does it have overhangs.
I have tested some more and get the best (not perfect) results with:
try to use “Archane” Mode in this case.
variable line thickness should help to solve this problem.
It’s too bad BS disables “slow down for overhangs” when arachne is enabled. No idea why they do this, you shouldn’t have to choose
because, the calc for this features depend on extrusion line and if this is variable it doesn’t work.
Yes, variable calculations are difficult for computers
Ok, so do you think, I got the best result possible for my model with overhangs and these tiny stairs?
Or would you suggest any other measures besides what I listed:
Hi Frank,
I hope all is well with you. Question: Did you ever find a solution that you were happy with? I’ve encountered the same issue. Ironing is the only thing that seems to help, but some of the surface holes are too big for ironing to fully cover. My example is similar to the original one that you posted.
If you see this message and have the time, please LMK where your investigations led you. I’m slowly working may way through a series of torture tests, and so far nothing has fully eradicated the surface holes for me.
Thanks!
Hi,
My bottom line for this problem is:
You can not always avoid it, but you there are ways to reduce it.
The printer is basically trying to fill in a surface outline with lines of a certain width. And the turns and ends of those lines are round. Even with a partial overlap you will not be able to fill the surface without little gaps, especially where the turns and ends of these lines are.
Long, narrow pointy areas are the worst case. The bigger the nozzle diameter the bigger the gaps/wholes. Often you can already see these problematic areas in the slicer preview.
To reduce the problem:
Or iron the top surfaces. But I find ironing does not always work with small and narrow surfaces. Slowing it down helps.
Hope this gives you some ideas for tweaking your print settings. It would be great if you could post a photo of your problem.
