How about a machine that prints “dot-matrix messages directly onto the spherical surface of ping pong balls”? Look no furthur than the “PingPongPrinter”. Video after the break.
Builders Vern Graner and Rick Abbott of The Robot Group used a Parallax inkjet print head kit and the EFX-TEK Prop-2 controller board to bring their wondrous creation to life. As each ball leaves the hopper, it�s loaded onto a rotating platform, and sprayed with tiny ink droplets