A few machines have truly changed the world, such as the wheel, steam engines, or the printing press ... The idea is more or less like a giant rubber stamp. As [Ian] points out, one way to ...

As demonstrated in the video after the break, the process starts by designing the stamp in your CAD package ... of a lightweight version of the 3D printed press break dies used to bend aluminum ...

They started by 3D printing a tiny, portable stamp with tiny grooves, each as tiny as a single cell. After pressing the stamp ...