The 3D printer has a hot nozzle where the melted plastic comes out so the most dangerous thing is probably getting burnt by that. I worked in a lab for my PhD though beforehand so I handled much more dangerous things then like concentrated acids and caustic materials so I got used to handling dangerous materials safely.
Making wrong assumptions, leading to wrong conclusions. Being an engineer, my work needs to have a realistic approach, hence the numbers/concepts I assume must be verified sufficiently.
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