This is why I shouldn't be using 0,3mm layer height for prototypes (or most of the things).
Printing at 0.3mm may save 50% of time but it's a false economy, overhangs that come out decently at 0.2mm are just awful at 0.3mm; and the part itself is so brittle it falls apart by just holding it.
See description of each part for details.
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Looking at the photos, it seemed that printed parts with 1 perimeter layer instead of 2.
No wonder they are more brittle.
Here's a completely unfair comparison to a much bulkier shape at 0.2mm with 2 layers, that took an actual effort to punch through.
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I do need 2 top layers when printing at 0.2mm.
Everything here is printed with eSun PETG.
I've been prototyping a few things, so I've been interesting in tuning the settings so in the end I'd get something that uses least amount of plastic while the part doesn't fall apart immediately.
I should probably use PLA for this, but PETG would be final material, and gray color that I only have in PETG looks good on the photos.
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@avolkov you don’t need any top or bottom layers!
Works just fine without it (and I don’t think they add much strength, depending on the part.
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@linux_mclinuxface
Good point. Top layer is theft!
I haven't really thought of that for some reason, I'll try it on the designs that don't have any fasteners coming through the layers.
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