The Cronus, which uses the same software as Project Escher, is big! Each of these gantries is driven by closed-loop servo motors and fancy ball screws, producing a total build volume of 77″x30 ...

"[My dad] would hold me up as a baby and I would just drool all over the playfield glass, just watching the ball roll around," Escher said. "When I was about two and a half, I could actually reach ...