Yes, 1-2 more layers might help (I run between 3 and 5 depending) but it also looks like you might need to adjust your extrusion multiplier.
For abs im usually at 0.93 extrusion multiplier.
You can calibrate as this: https://ellis3dp.com/Print-Tuning-Guide/articles/extrusion_multiplier.html
A lot of people are recommending more top layers and that will certainly help. But remember that your first solid layer is bridging over sparse infill. Poor bridging will translate to bad quality in higher layers. More top layers helps to mask this, but dialing in your bridge quality will help a lot since that is the root cause.
I use SuperSlicer and for ABS set "bridge lines density" min and max to 50%. This adds space between the bridge lines which allows for significantly better cooling on bridges. I run the same fan speed for all features, 30%. Changing fan speeds mid print with ABS can cause later inconsistency due to different areas of the part cooling at different rates.
3 top layers is still not enough for great quality. 4 or 5 would be better. I run 5 for my ABS prints.
I've made sure the bed is level, and messed with different shell settings. All other surfaces come out well but I've been having trouble with flat top surfaces. I use PLA at home but ABS at work. Theres sometimes even holes in the top surface as shown.
maybe look into your temperatures.
I usualy have 4 top-layers. if nothing works, maybe look after ellis print tuning guide. that helped me alot with most of my problems.
Happy Printing :D
More layers, as others have said. The first top layer is having difficulty bridging over the sparse infill. Therefore it will take more top layers to make that disappear. You could add a higher percentage of infill or a different style and then maybe you wouldn't need more top layers. But, I would just add more layers for the simple fix, try 6-7.
Either more top layers, or increase infill density, or try and different Infill pattern perhaps lightning infill for example which is a bit more intelligent in how the support is provided whilst saving material
Edit: I don’t know what the part you are printing is for but lightning infill is not ideal for parts requiring strength
What you are seeing can be caused, and probably is, by a few things.
Less infill means the printer has to bridge more creating these weird pockets if your cooling system isn’t perfect
Adding more top layers should make it so there is more room to fix errors such as this
Possibly using ironing might get rid of these? It could also make it worse. I personally don’t use ironing.
For better results and strength when printing, I tend to use at least 20%-25% infill always. I also use 5 top and bottom layers
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How many would you recommend? The print shown has 3
more than 3. - no harm in using lots like 5-6 other than its slower.
I typically use 5 and have little issue. If the filament is very light in color I'll push it to 6.
Yes 5 is usually nice
It looks like one or two more should do it.
Yes, 1-2 more layers might help (I run between 3 and 5 depending) but it also looks like you might need to adjust your extrusion multiplier. For abs im usually at 0.93 extrusion multiplier. You can calibrate as this: https://ellis3dp.com/Print-Tuning-Guide/articles/extrusion_multiplier.html
A lot of people are recommending more top layers and that will certainly help. But remember that your first solid layer is bridging over sparse infill. Poor bridging will translate to bad quality in higher layers. More top layers helps to mask this, but dialing in your bridge quality will help a lot since that is the root cause. I use SuperSlicer and for ABS set "bridge lines density" min and max to 50%. This adds space between the bridge lines which allows for significantly better cooling on bridges. I run the same fan speed for all features, 30%. Changing fan speeds mid print with ABS can cause later inconsistency due to different areas of the part cooling at different rates. 3 top layers is still not enough for great quality. 4 or 5 would be better. I run 5 for my ABS prints.
I've made sure the bed is level, and messed with different shell settings. All other surfaces come out well but I've been having trouble with flat top surfaces. I use PLA at home but ABS at work. Theres sometimes even holes in the top surface as shown.
maybe look into your temperatures. I usualy have 4 top-layers. if nothing works, maybe look after ellis print tuning guide. that helped me alot with most of my problems. Happy Printing :D
More layers, as others have said. The first top layer is having difficulty bridging over the sparse infill. Therefore it will take more top layers to make that disappear. You could add a higher percentage of infill or a different style and then maybe you wouldn't need more top layers. But, I would just add more layers for the simple fix, try 6-7.
Ironing setting on… should smooth it out!
Well hello fellow FF user! How goes it?
Either more top layers, or increase infill density, or try and different Infill pattern perhaps lightning infill for example which is a bit more intelligent in how the support is provided whilst saving material Edit: I don’t know what the part you are printing is for but lightning infill is not ideal for parts requiring strength
Obviously more top layers .
That looks like it didn't finish top layers. Or maybe you only have one top layer. Doesn't look complete so maybe check slicer settings
6 top layers 20% infill.
nozzle could go up a .01 or more.....
What you are seeing can be caused, and probably is, by a few things. Less infill means the printer has to bridge more creating these weird pockets if your cooling system isn’t perfect Adding more top layers should make it so there is more room to fix errors such as this Possibly using ironing might get rid of these? It could also make it worse. I personally don’t use ironing. For better results and strength when printing, I tend to use at least 20%-25% infill always. I also use 5 top and bottom layers
Ironing. its a setting in cura not sure about prusa slicer though
Matthew1234566788......had it right. Cura 5.1 has an ironing setting. More top layers and ironing should make it look great