St. Vrain Manufacturing, Inc.

What's New

St. Vrain Manufacturing’s most recent capital acquisition for the Quality Department is the German made Mycrona Signum multi-sensor coordinate measuring machine. Quite a mouthful, but quite a machine! This programmable measuring machine provides St. Vrain Manufacturing with precision optical and laser measurement capabilities as well as the more familiar touch probe system, all in one platform. The measuring machine includes a software integrated rotary table for increased measuring versatility.

Measuring specifications are what you would expect from a high precision, German built measuring machine. The volumetric accuracy formula was most recently calibrated at E3 = +/- (2.0 micro meters + L/300), the factory specification being E3 = +/- (3.4 micro meters + L/300). Repeatability is less than 0.6 micro meters under the current mapping.

The machine frame is made from black granite to give it thermal and structural stability. The machine frame rests on an active, 3 point, air cushion leveling system to eliminate vibrations from the floor. The active system also levels the machine frame when the mass moves during measurement positioning. The control cabinet is physically separated from the machine frame to reduce any thermal influences from the cabinet’s electronics.

The different measurement systems are calibrated independently using glass and three dimensional masters. The calibration results are then related to each other through the software. In this way, complex parts can be accurately measured using any combination of touch probe, camera, laser and rotary table. The software and measuring systems provide the capability of verifying any callout found in geometric and dimensional tolerancing.