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notes/3D printing/Filament.md
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@ -16,4 +16,11 @@ Carbon fiber PLA is made by adding chopped or ground PLA to the filament. It doe
The addition of carbon fiber makes the end product stiffer, but more brittle. PLA-CF is one of the best filaments for detail oriented printing. It's overall a better filament than PLA, with the only drawbacks being a hardened steel nozzle requirement, and lack of color options.
### Metal-filled PLA
Metal filled PLA is made by adding metal shavings to the filament during production. This makes the print heavier and infuses
Metal filled PLA is made by adding metal shavings to the filament during production. This makes the print heavier and infuses the print with some of the properties of the metal added. Copper infused filament can gain a patina, stainless steel infused filament can be polished, iron is magnetic, et cetera et cetera.
The addition of metal particulate reduces the strength of the print and makes it more brittle. Metal-filled PLA is extremely expensive, difficult to print with, and anything that can be achieved with metal-filled PLA can also be achieved using paint, inserts, or some form of electroplating.
### Wood-filled PLA
Wood-filled PLA is comprised of sawdust, and PLA. Cheap wood-filled PLA looks brown and has no particular wood-like qualities, but higher quality WF-PLA has visible chips of wood. This impacts the print by giving it a wood-like texture and allowing you to use varnish on the print.
WF-PLA is difficult to print with, it easily absorbs humidity and sputters from the nozzle. The resulting product is also weaker.