Renishaw REVO™ Five-Axis Scanning System

Overview

The Renishaw REVO™ Five-Axis Scanning System represents a paradigm shift in coordinate metrology, introducing synchronized five-axis motion control to coordinate measuring machines (CMMs) for the first time in nearly two decades. Unlike conventional CMM probing systems that rely on sequential three-axis machine movement and fixed-head orientation adjustments, the REVO system decouples probe motion from machine motion: the CMM moves the REVO head along the X, Y, and Z axes at high speed while the integrated two-axis motorized kinematic system (A- and B-axes) continuously reorients the probe tip in real time. This architecture is grounded in the principle of dynamic path following, where both the machine and probe axes operate concurrently under coordinated trajectory planning—enabling true continuous scanning without step-and-measure interruption. The result is a substantial reduction in measurement cycle time, improved geometric fidelity on complex freeform surfaces (e.g., turbine blades, injection molds, and aerospace structural components), and enhanced repeatability across large-volume inspections.

Key Features

• Synchronized five-axis motion: Independent A- and B-axis rotation enables real-time probe orientation adjustment during X/Y/Z translation—eliminating mechanical overtravel and reducing dynamic errors.
• Spherical air bearing design: Low-friction, non-contact rotational joints ensure long-term stability, minimal hysteresis, and zero wear across millions of measurement cycles.
• Brushless DC motor drive: Delivers high torque density and precise angular acceleration control, supporting rapid directional changes without positional overshoot.
• High-resolution optical encoders: 0.08 arc-second resolution feedback on both rotary axes ensures traceable angular positioning accuracy compliant with ISO 10360-2 and VDI/VDE 2617 Part 4 standards.
• Hollow-stem probe technology: Integrated laser-based length compensation corrects for thermal drift and bending deflection in real time, maintaining sub-micron probe-tip stability at scanning speeds up to 500 mm/s.
• Modular probe interface: Compatible with Renishaw’s PH20, TP20, and SP25 families, enabling rapid configuration for touch-trigger, analog scanning, or high-density surface digitization tasks.

Sample Compatibility & Compliance

The REVO system is engineered for dimensional verification of precision-engineered parts across aerospace, automotive, medical device, and energy sectors. It supports measurement of features ranging from Ø0.1 mm micro-holes to 3 m turbine casings—provided the host CMM meets minimum volumetric accuracy specifications (e.g., ISO 10360-2 Grade MPE_E0,MPEP ≤ 2.5 + L/300 µm). All REVO hardware and firmware comply with CE marking requirements, electromagnetic compatibility (EMC Directive 2014/30/EU), and low-voltage safety (LVD Directive 2014/35/EU). When deployed in regulated environments, REVO-enabled inspection workflows support audit-ready documentation per ISO 9001:2015, AS9100D, and FDA 21 CFR Part 11 when paired with Renishaw’s UCCserver and MODUS™ software with full electronic signature and change-log functionality.

Software & Data Management

REVO operation is fully integrated into Renishaw’s MODUS™ metrology software platform, which provides NC code generation, adaptive path planning, and GD&T evaluation aligned with ISO 1101 and ASME Y14.5–2018. Real-time data streaming enables simultaneous acquisition of point cloud, vector normals, and surface deviation maps at up to 1,000 points per second. Raw scan data is stored in industry-standard formats—including .STL, .IGES, and metrology-specific .PNT—with metadata embedded for full traceability (operator ID, calibration certificate reference, environmental sensor logs). For enterprise-level integration, MODUS supports OPC UA connectivity and RESTful API endpoints, allowing bidirectional synchronization with PLM (e.g., Teamcenter, Windchill) and MES systems. Audit trails—including all parameter modifications, probe qualification events, and report exports—are retained with immutable timestamps and user authentication logs to satisfy GLP/GMP documentation requirements.

Applications

• Aerospace: Blade profile verification (NACA/NREL airfoils), wing spar contour mapping, and composite layup thickness analysis.
• Automotive: Cylinder head port geometry validation, die-cast housing form inspection, and EV battery tray flatness assessment.
• Medical: Orthopedic implant surface texture quantification (Ra, Rz), dental CAD/CAM crown margin integrity checks, and surgical guide alignment verification.
• Energy: Turbine disc slot geometry, heat exchanger fin pitch uniformity, and nuclear fuel pellet diameter consistency monitoring.
• Tooling & Moldmaking: Injection mold cavity surface deviation mapping, EDM electrode wear tracking, and stamping die tryout validation.

FAQ

Is the REVO system compatible with legacy CMM platforms?
Yes—REVO is designed as a retrofit solution for Renishaw-equipped CMMs manufactured since 2008 (e.g., Equator™, XK10, and most Miura-series machines), provided the controller firmware supports UCCserver v5.0 or later.
Does REVO require recalibration after each probe change?
No—REVO implements automatic probe qualification via its built-in master artifact recognition algorithm; probe offset vectors are updated dynamically without manual intervention.
Can REVO perform tactile and optical measurements simultaneously?
No—REVO is a tactile scanning system only. For hybrid metrology, Renishaw recommends pairing REVO with its RCS L-90 laser line scanner on dual-sensor CMM configurations.
What environmental conditions are required for optimal REVO performance?
Ambient temperature must be stabilized between 18–22 °C (±0.5 °C/hour drift), with relative humidity maintained at 40–60% RH and vibration isolation meeting ISO 230-2 Class 3 requirements.
Is training and certification available for REVO operators?
Yes—Renishaw offers certified instructor-led courses covering MODUS programming, path optimization, GD&T reporting, and ISO 17025-compliant uncertainty budgeting, delivered globally through authorized metrology training centers.