SPRINT™: Machine Health Check
The solution for end users and machine tool builders who want to design sustainable machining processes
Verifies machine capability in less than a minute.
Checks for kinematic centre errors and linear errors.
Results are designed for use in Go/No-go checks.
SPRINT on-machine scanning system for automatic machine health checking
The SPRINT Machine Health Check application provides a unique solution for end-users and machine tool builders who want to design sustainable machining processes on 3 and 5-axis table/table milling centres. It can verify machine tool performance in less than one minute using simple tests, based on the SPRINT system's exceptionally accurate 3D measurement capability, and a magnetically-mounted artefact supplied with the toolkit.
The application comprises two types of tests:
- A linear test – for 3-axis machines – which performs a simultaneous X, Y, Z sphere measurement, using a special tool path on a calibrated sphere, and stores a calculated form error to a CNC variable. This test is comparable to a ballbar test performed over a small machine volume.
- A kinematic test – for 5-axis machines – which uses a unique ball-in-cone concept where the stylus ball of the OSP60 SPRINT probe is positioned into the cone and automatically centres itself in it. As the machine moves, the deviation between the actual and calculated positions is recorded in 3D, and centre errors are reported in machine variables. This test checks the relationship between the CNC kinematic model and the real machine condition, storing new kinematic centres to NC variables. The test also reports the deviation from ideal kinematic, allowing traceability of linear axis, and use as a Go/No-go check.
Using a magnetic artefact, both types of test take under a minute, and can be carried out automatically to ensure machine capability prior to cutting metal. The results of both tests are written to CNC variables, allowing an instant Go/No-go decision and uninterrupted machine operation, giving the operator confidence in the machine's ability to meet the required tolerance for the workpiece.
The SPRINT Machine Health Check application is fast enough to be used automatically prior to machining in order to detect warm-up issues or any other previously unidentified problems. It can also be used as part of a regular maintenance regime, to provide long-term sustainability and monitoring of manufacturing processes.
SPRINT™: Machine Health Check
Explore the SPRINT system
The OSP60 scanning probe has an analogue sensor with 0.1 µm resolution in three dimensions to provide exceptional accuracy, giving the greatest understanding of workpiece form.
Constructed from the highest grade materials, the OSP60 is robust and reliable in the harshest machine tool environments and able to withstand shock, vibration, temperature extremes and liquid ingress.
A range of SPRINT-specific styli is available to complement the enhanced capability provided by the OSP60. Easily identifiable by a black stylus holder engraved with the exact ball diameter, these styli include a number of design elements which offer improved metrology performance for machine tool applications, in comparison with standard styli offerings.
Harness the power of on-machine scanning with Productivity+ CNC plug-in software and open up a new world of process control.
This on-machine software controls the OSP60 scanning probe, the machine tool, and the PC‑based data tools, enabling more advanced data processing than traditional methods. Real time data processing during measuring or cutting minimises cycle time and results in a high-speed, accurate, and capable process.
The Productivity+ CNC plug-in provides exceptional ease-of-use for machine operators and programmers, with its on-line editor allowing the measurement program to be updated on the machine.
The close integration of controller and CNC plug-in is designed for automatic closed-loop process control to reduce operator intervention.
Data link to machine controller
The OSI-S interface synchronises the SPRINT system with the machine tool and passes data between the OSP60 and the Productivity+ CNC plug-in software.
Optical transmission – high-speed communication
The OSP60 probe and OMM-S receiver unit communicate via a high-speed optical link. The unique communication protocol provides reliable, high-speed and robust data communication.
Two OMM-S receivers can be used in tandem to increase optical range and machining area coverage; particularly useful in large and multi-axis machines.
The SPRINT system incorporates ground-breaking technology which allows organisations to completely re-think the use of on-machine process control measurement in high value CNC manufacturing tasks.
Working in conjunction with manufacturing organisations in key industries, Renishaw continues to develop specific application capability to improve manufacturing processes.
Based on this experience, the SPRINT system is offered in conjunction with a variety of software toolkit packages for data processing, each focussed on an individual task or industry sector.
The capabilities of each package vary by application but typically include:
- Editing and programming tools for process planners and CAM users, provided as an extension to Productivity+
- On-machine data analysis tools which run automatically in-cycle, and provide measurement feedback to a CNC machining process
- Documentation to allow programmers and users to understand the cycles and use them to their best effect
In some cases Renishaw may be able to provide programming and support capability for these applications.
- Brochure: SPRINT™ high-speed scanning system
- Data sheet: SPRINT™ system
- Data sheet: Productivity+™ CNC plug-in
- Application note: SPRINT™: Blade Toolkit
- Application note: SPRINT™: MTM Toolkit
- Application note: SPRINT™: Machine Health Check
- Technical specifications: Probing systems for CNC machine tools