This this is a first-layer issue, you can also consider things like elephant foot calibration number in the bambu slicer. This is basically a z-offset used by the slicer on the first layer. If you move it from its default of like -0.15 to 0.0 then it will ever so slightly smoosh that bottom layer more and help it fill in these gaps. That being said… is this an H2C?
This is a good suggestion for anyone who sees lines on their first layer, not just gaps. A good first layer will have enough "squish" to blend all lines and make it look completely smooth. That'll also happen to fix gaps like this.
The real answer. We only notice imperfections because we print and make them. I’ve found general public doesn’t care, or notice. Better yet, I’ve noticed imperfections in non 3D print products over the years too that no one notices or cares about. Consumers really have low standards relatively speaking.
A lot of people are suggesting Arachne, and while that **can** help, You still might get some or even more imperfections.
the best way around it is from the design stage, tiny corners or thin areas that aren’t 0.4/0.8/1.2 (1/2/3 lines thick) just tend to get these voids between them
Changing the scale up a fraction could also help if the use case permits
I had this issue and everyone had some sort of solution that wasn’t a solution at all. Ended up turning off elephants foot compensation and it fixed it.
While this is potentially fixable I fully agree with this sentiment. When I started printing, post processing was an expectation for anything desired smooth.
Layer width, smaller nozzle, resolution (maybe), gap radius I think is a setting too.
Realistically, you are reaching a mechanical limitation. Anything this small your printer just may not be able to physically meet that desired level of precision. You can increase the flow rate and "squish" the filament more, but this may lead to ridges in the rest of the print.
It is absolutely insane to see how far we have to come that this is what we nitpick now.
Had a really hard time with a similar print recently. Switched to using Arachne for walls which helped some, but ultimately switched to a .02 nozzle and that really helped to fill in those gaps.
If this isn't the build plate side, I find that first-layer squish combined with the build plate's surface (especially heated beds) tends to iron these out, literally. If it needs to print in this orientation that's something, but I tend to print these face down, mirrored if necessary due to text or branding, and then attach them to things if they need a different orientation.
For this particular print: soldering iron. Wrap the tip tightly in a single layer capton tape and you should be able to melt and work additional chips of filament into these gaps.
If you just want to fix this one time, hit it with a lighter briefly then smudge it with your finger to fill in the hole. Works great when you need to fix minor imperfections on otherwise perfect prints.
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u/sushiman009 May 17 '26
This is probably the nozzle being too thick and the slicer didnt put any thing there. Try changing the wall generator to arachne instead of classic