raspenger wrote: ↑
Sat Apr 13, 2019 1:39 pm
About the 3D printers: I have no experience in that area. And I do not know if there could be health issues.
Pretty much every filament comes with an MSDS data sheet. While there are some with concerns that FDM printers produce ultra-fine particulates, the strongest proponents of this theory also seem to be involved in the supply of incredibly expensive HEPA-filtered enclosures for school 3d printers. Hmm ...
Most plastic Raspberry Pi cases you'll buy are made of ABS: a mixture of three different plastic stocks that combine strength, toughness and low cost. There's probably a lot of filler (chalk) and optical brightener (titanium dioxide) in there too. It's generally considered safe unless you start burning it. ABS is still a fairly popular 3D printing material, but it stinks of burning car tyres while printing.
PLA is the standard 3d printing filament these days: cheap, accurate, pretty, biodegradable but usually quite brittle. Some PLA will smell somewhere between waffles and maple syrup when printing. Although it's made from food stock, please don't eat it.
PETG (the plastic bottle material, with Glycol added (I think) to assist with extrusion) is pretty common. Though it prints hotter than PLA and ABS, it appears to have no (or trace) VOC emissions when printing. The biggest issue you might hit when printing with higher-temperature materials is PTFE fumes if your printer uses it near the hot end. PTFE fumes are no joke (ask any dead canary) but PETG just sneaks in under that temperature.
Once printed, most 3d printed materials are generally considered safe.
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