What is PLA?

Novice 3D printer operators often wonder, ā€œwhat is the PLA that I am printing?ā€

Some Questions About The PolySmoother

Iā€™m looking at a new and wildly successful Kickstarter for something called the ā€œPolySmootherā€, which they say is ā€œan extremely convenient tool for polishing 3D printsā€.