Top of print has holes

What's going on here? Why does every time I print a dome, the top looks like this? Happens at the same layer every time despite changing a variety of settings.
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14 Replies
blacksmithforlife
blacksmithforlife•2y ago
how many walls are you using?
joj
joj•2y ago
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blacksmithforlife
blacksmithforlife•2y ago
no, how many perimeters?
joj
joj•2y ago
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blacksmithforlife
blacksmithforlife•2y ago
yeah, you need to increase the number of perimeters
joj
joj•2y ago
Okay, but here are my settings for prusaslicer that prints no problem on my ender 3
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joj
joj•2y ago
And here's the default settings I also used and got the same problem in superslicer:
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equal-jade
equal-jade•2y ago
this is the setting you want to try 😉 also you could make a height range modifier and sett the Layer Height down for the top part to get nicer and rounder Tops
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joj
joj•2y ago
oh shit how did I miss that okay I will try again
joj
joj•2y ago
It doesn't seem to change the gcode though. This is the layer it fails at every time. I don't see any extra perimeters since this doesn't count as an overhang I think.
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equal-jade
equal-jade•2y ago
You Infill percentage is way to low at that point, there is nothing where the solid Infill can sit on, try to turn on supporting dense layer so that you get Bridges below that solid Infill
joj
joj•2y ago
My prusaslicer project gcode works though. Although it uses "internal bridge infill" before that pink solid infill
joj
joj•2y ago
Even with dense infill, the perimeter has holes in it at the same layer. I cracked the top of the dome off so you could see inside.
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joj
joj•2y ago
I found the solution. Changed this from 2->3. I can now print domes with 0 supports.
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