The Litter Robot 4 has a 15.75’’ x 15.75” entryway for your cat to get in and out of the box and it takes up less than three feet. It measures 22″ W x 29.75″ H x 27″ D.

That said, the Litter-Robot 4 has some design upgrades that can benefit your cat. For starters, the entryway is much wider: 15.8 inches compared with the Litter-Robot 3 Connect’s 10.3 inches.

Using 3D printed parts and many, many servos, we think [Liang] has done an admirable job at creating a basic robot cat platform.

Using 3D printed parts and many, many servos, we think [Liang] has done an admirable job at creating a basic robot cat platform.

It was just this March that we told you about a hexapod bot created at UC San Diego, which was 3D-printed in one continuous 58-hour step. That robot was powered not by a motor but by compressed ...

Like any robot designed to take over one of your everyday chores, there’s a trade-off—a financial one. A good litter box is maybe $40 if you want one that’s enclosed.

The robot can even get up and walk away from the printer, after an external motor and battery is added. The scientists' work on the walking and slightly creepy hexapod robot (and other 3D printed ...