@thraeryn PETG has given me the best luck with layer adhesion. ABS has been the most bothersome. It's probably your best bet to make something that needs to hold liquid.
My previous experience—making a cup, because dishwasher safe—I didn't know enough about it, didn't have great slicer settings.
THIS time, I cribbed from someone else. Made a small test something. If it holds, I'll do a new cup design.
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