Top soild infill gaps
I am getting these gaps in the top solid infill and because the top surface has to vertically align as well the filament sags into the gaps, any sugestions on how to get rid of them please.
RE: Top soild infill gaps
What gaps are you talking about ? I see 3 sections of top infill (red) surrounded by normal solid infill (purple). I cant see any gaps. I guess the model continues upwards and those topfill areas will end up being in the bottom of depressions. From the image it looks like a pretty normal slice from what I can see.
With the info you give anything is all just guesses. Please save your project file from Prusa Slicer (File>Save Project As). The take the resulting 3mf file and ZIP it up. Attach the zipped file to a post here. It must be zipped or the forum wont accept the file type. It will just silently not attach anything. No warning, it just doesnt.
A project is a snapshot of your slice, so has all your settings as well as the model in and any modifiers etc. That way people dont have to guess what you are working with.
RE: Top soild infill gaps
That's an absolutely normal slice. Its exactly what I would expect PS to do with that model geometry. Its filling in topfill in areas where its supposed to be and everything else is normal. What you describe as gaps are just the boundary points between topfill layers and solid infill layers. The geometry that is printed later goes over those joins which is why they are there.
If you have a problem with the top layers sagging into your infill then the issue is not enough infill %. Large flat areas like that always need more infill. Its also common for top layers to be set at 5 for something like this. Although with this part personally Id up both bottom and top layers to 5 which gets rid on the infill entirely. While that uses a few grams more filament (1.6g more) it actually reduces print time by a few minutes.
While normally a solid part is not recommended due to the the possibility of over extrusion if your printer and filament profiles are tuned in its doesn't.
Basically this is the way PS slices things. You could experiment with various modifiers but for the time that would take just print it with either much more infill or increased top layers
Top solid infill gaps
Thank you for the reply, I agree it looks like a normal slice but if you change to the print head path view it turns the layer below black which clearly shows there is an unprinted space between the red areas which is the cause of my problem, is this normal?