Anti Spill Coffee Cup
by HAMMIE, published
(NOT FOR DRINKING! JUST A NICE IDEA)
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It's a nice idea, but filament printers do not make foodsafe products. The layers create tons of places where bacteria can catch and grow, safe from any attempt to clean them out. PLA decomposes over time, and allows liquids to seep through if left alone for some time. ABS holds liquids better, but it still isn't great. Thin ABS or PLA parts may warp in hot machine wash conditions. There are harsh chemical methods of smoothing a printed object to avoid the bacteria problem, but I would still advise against it.
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