Each 3D print file on Thingiverse provides images, printing advice, and printer specifications, facilitating the printing process for users. Cults 3D. Tharindu Dias/SlashGear.

3D printing can be a fun and productive hobby and skill, but there can be a lot of confusion around the files involved. Here are some you should know about.

This unfeasibly tiny 3D printed, 15 micrometer model of the USS Voyager—well of an Intrepid-class starship (we can't quite make out the designation)—can actually move under its own power.

Microscopic Star Trek spaceship. Rachel Doherty and Samia Ouhajji By using a 3D printer, the scientists have discovered that they can print any shape of microswimmers, including boats and starships.