PLA is a bioplastic derived from renewable materials such as corn, sugarcane, or tapioca. PLA is not without its issues, true, but unlike other plastics, it’s not based on petroleum and requires less energy to produce. What’s more, it’s compostable via commercial composting outfits, if not in your own backyard. Also in the plus column: It releases fewer irritating fumes than other plastics when the 3D printer is doing its thing. PLA isn’t suitable for every use — it can’t handle the highest temperatures, for one — but it’s among the greenest choices out there.
