Frequently asked questions

Motion systems are customised multi-axis motion platforms offering motion in X, Y, Z, theta, and tip/tilt. The system’s axes are integrated into the driving mechanisms and encoders and offer the “next level” in performance regarding accuracy and speed. Motion systems are delivered as plug-and-play with all electronics integrated.

Motion systems can offer both, long and short travel, or a combination. Drive mechanisms are typically linear motors for the long travel axes and ball screws, and piezo motors or voice coils for the short travel axes.

For linear guides, a combination is used for long travel, with recirculating guides or air-bearings. The shorter axes are typically designed with cross-roller guides for repeatable accuracy and smooth motion. The most common axes are X-and Y-axis, Z-axis, Theta-axis and Gonio-axis.

Positioning stages or positioning systems include two or more axes providing precision motion in X, Y, Z, rotary or tip/tilt. The stages are built with linear tables, include the drive mechanisms, and are mounted on each other. In some designs the X and Y-axis are integrated, offering a monolithic design.

A monolithic design means that the top of the bottom axis and the base of the top axis are integrated into one piece. These stages are primarily used for high-precision applications. The linear bearing of choice is a type of crossed-roller or needle roller guide, as these provide extremely smooth and precise travel with high load ratings and rigidity.

Linear stages are constructed with a precision machined steel or aluminum top and base. They use high-precision linear guides such as cross roller guides and use different driving mechanisms (ball screw, linear motor, or piezo motor). For positioning feedback, they can be equipped with linear encoders. Linear tables offer single-axis straight-line motion with low friction and high precision.