To make a Robot in Infinite Craft, you will need to combine the elements of Electricity and Metal. However, to unlock each of these key components, ...

The inflatable pouches can be custom-made to any size using a CNC machine or even a basic 3D printer, and the only other thing they need to work is tubing and a constant supply of air.

The soft, phase-changing material. Photo courtesy of the researchers. via MIT. You can buy wax and foam for less than $30 at a craft store, but someday robots made from the stuff might save your life.