CMM raises accuracy and throughput

The Libero is a high-performance CMM aimed at the high-accuracy high-throughput market dominated by the automotive and aerospace industries.

Metris is launching a new generation CMM at the Control Show in Sinsheim.

The Libero is the first release of a new CMM product since Metris acquired LK in January and is significant in highlighting the rapid integration of the two metrology companies.

The machine, with its distinctive raised guide way, is a high-performance CMM, aimed at the high-accuracy high-throughput market dominated by the automotive and aerospace industries.

Featuring a granite table, a ceramic beam and spindle, the Libero continues the tradition of providing metrology structures that provide stiffness and stability with drive systems that offer smooth and efficient motion control to users requiring very high accuracy, reliability and low cost of ownership.

The Libero has two distinctive design features that provide much greater stiffness to the metrology structure.

A characteristic that is vital in quick and successful high accuracy scanning.

In raising the x-axis guideway the drive has been positioned much closer to the centre of gravity and coupled with the inclusion of an s-axis scale to dynamically compensate for x-axis errors this has created a significant increase in the stiffness of the structure.

Initial testing of the Libero on shopfloor benchmarks resulted already in a doubling of the capability index on many of the measured features when compared with a metrology lab machine located in a temperature controlled and clean environment.

Primarly designed as an analogue scanning solution, the Libero is a significant development in the marketplace.

For the first time it provides a CMM with the high scanning performance characteristics previously only reached in the metrology lab into the shop-floor environment and provides it without the need to provide expensive and restrictive enclosures.

The new CMM will be available in three machine sizes and three machine variants.

All of the variants are fitted with temperature compensation and pneumatic AVMs as standard.

The Libero+ is designed to be a very high accuracy laboratory machine but the Libero and the Libero Therma are designed for shopfloor use with the Therma having a temperature range of 15 to 30C making it suitable for high performance in a very hostile thermal environment.

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