I prefer walking when it comes to transport. Less chance for accidents. But to each their own!
Overview
Used in the creation of things that require a motor.
Website Description
I prefer walking when it comes to transport. Less chance for accidents. But to each their own!
Used to Craft
Speculation
Probably used in the creation of Explorer, Miner, Constructor, and Assembler. There's a "work bench" in the preview video which has been guessed to be where your 'first' motors come from which you then later use to automate the creation of them.