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 ...

So, you got a 3D printer for the holidays, ... It’s there. A rainbow filament that gives your prints a multicolored tint? Yep. There’s even glow-in-the-dark PLA filament.

Instead, it’s an inquiry into how self-sufficient one can be with a FDM 3D printer. That didn’t stop him from torture testing the design to its limits as wheel bearings on an off-road go-cart.

When 3D printing a particularly complex object, you often need to incorporate additional support structures into its design, given how the layer by layer ...