Polylactic acid, or PLA, is the most common 3D printing filament, and it's the easiest to use. Unlike most plastics, it's made from corn starches so it's nontoxic and, in theory, compostable ...

Filament-based 3D printers are remarkably wasteful. If you buy a kilogram of filament from your favorite supplier, the odds are that it will come wrapped around a plastic spool weighing about 250 g… ...

Designed for use with 3D Systems’ Cube 3D printers, the new filament is available in $49 or $99 cartridges depending on the size of the machine you’re using it with.

Interested in experimenting with your own multi-color filament? [Turbo_SunShine] says to just print your own, and experiment away! Now, if you’re thinking that 3D printing some filament sound… ...

My practical 3D printing advice is simple: if you're buying a new 3D printer, get one with a filament runout sensor. If you don't have one, see if it can be added and invest a few bucks to upgrade ...

PEEK is, far and away, one of the most expensive consumer-grade 3D filaments out there, retailing as high as nearly $600 for a kilogram. ABS. Matterhackers.