Wisconsin engineer Tim Lexen built and designed the rover. At its heart is a flat triangular PVC main body (measuring about 7 inches/17.8 cm per side) that houses three electric servo motors, battery ...

Wheels and tracks are common choices for robot propulsion, but they’re not the only game in town. You can do some nifty things with long extruded screws , and they work pretty well in soft terrain.

I’ve noticed, lately, that slotted screw heads are all but gone on new equipment. The only thing that I find remarkable about that is that it took so long. While it is true that slotted heads have ...

The AGK Ball Screw Drive Unit from Bosch Rexroth Corp., Charlotte, N.C., delivers up to five times the speed of traditional ball screws when used for extended-length applications. The AGK Ball Screw ...