This laboratory has been established in the year 2010 to enhance the research facility in the field of metrology. Coordinate measuring machine Model Contura G2 manufactured by Carl Zeiss has been commissioned in the same year. Portable Coordinate measuring machine Model FARO FUSION ARM manufactured by FARO has been commissioned in 2016 to support the research activity in the field of Bio CAD. The number of Undergraduate students have been using this facility for their project works.
Contura G2 - Carl Zeiss
Specifications
Measuring range: x= 700mm, y= 700 mm and z= 600mm.
Length measuring error : ( 1.8 + L/300 ) µm
Probing error : 1.8 µm
Form measuring error : 1.8 µm
Stylus length range : 30-75mm
Probe tip diameter : 1.5 – 5mm
Special Features
- Measuring complex features and parts with multiple angles that require very small styli.
- Articulated probe holder that can reach 20,376 positions in 2.5º increments.
- Articulated scanning with the VAST XXT.
- Open bridge design with integrated vibration damping
- All axes are equipped with 4-sided Carl Zeiss air bearings to provide more stability and very precise measurement.
- Ceramic guide ways are thermally stable— temperature fluctuations have practically no influence on the reliability of the results.
- The C99 Controller offers Computer Aided Accuracy (CAA) for real-time dynamic correction of the CMM and sensor for very accurate results.
Software
CALYPSO CAD-Based Software
- Visual Metrology concept for creating and maintaining measuring plans.
- Intelligent: rules-based programming sets the detailed parameters, automatic paths, and collision avoidance.
- Powerful: supports a wide range of sensors, high-level tools, formulas, and parameters.
- Better performance with scanning technology.
- Easy creation of measurement plans with object-oriented programming.
- Software and sensor flexibility while measuring
- Easy to customize reports
Some of the research activities undergone are:
- Selection of sampling points for evaluation of flatness using coordinate measuring machine
- Efficient algorithm for roundness evaluation from coordinate measurement data
- Investigation of influence of sampling size and sampling method in measurement of cylindricity
- Comparison of accuracy of flatness obtained by four sampling techniques using coordinate measuring machine
Portable CMM with Laser Scanner
The Faro Portable CMM is most advanced Portable CMM Arm with Laser Line scanning. The device is high on accuracy and left all the other traditional CMM tools and portable inspection equipment out of date. The Faro Portable CMM will allow easy inspection Reverse Engineering or CAD-to-Part scanning anywhere
Specifications
FARO Laser Line Probe V3:
Accuracy: ±35μm (±0.0014 in.)
Repeatability: 35μm, 2σ (0.0014 in.)
Stand-off: 95mm (3.75 in)
The depth of field: 85mm (3.35 in.)
Effective scan width: Near Field 34mm (1.34 in) Far Field 60mm (2.36 in)
Points per line: 640 points/line
Scan rate : 30 frames/second x 640points/line = 19,200 points/sec.
Laser: 660nm, CDRH Class II/IEC Class 2M
The weight of Laser: 370g
Model: Fusion 1.8 m (6 ft):
Single Point Repeatability: 0.046 mm (0.0018 in.)
Volumetric Accuracy: ± 0.064 mm (±0.0025 in.)
FaroArm Weight : 9.5 kg
Axis: 7
Special features
- Use Laser and Hard Probes seamlessly
- Laser scan up to 19,200 points per second
- No intermediary software running in the background
Software
FARO CAM2 Measure 10 Software
FARO CAM2 Measure 10 is an all-in-one metrology software for users who are looking for a single, complete solution for all tactile measurement and non-contact 3D scanning applications.
The software is ideal for CAD and non-CAD inspection and Geometric Dimensioning and Tolerance (GD&T)
Geomagic Design X
- Generates history-based CAD models with feature trees
- Convert to preferred file format, including Solid Works,
- Creo, NX, Inventor, AutoCAD, CATIA and others
- Point cloud, mesh, surface and solid modelling all in one application
- Complements all CAD software by creating native models with feature trees – the most popular type of design models
- Named “the only viable choice” for parametric reverse engineering in an independent study
Common Applications
- Aerospace: Reverse Engineering, Certification, Part Inspection
- Automotive: Tool Building & Certification, Alignment, Part Inspection
- Metal Fabrication: On-Machine Inspection, First Article inspection, Periodic Part Inspection
- Molding /Tool & Die: Mold and Die Inspection, Prototype Part Scanning
Papers published
- S. karuppudaiyan1 , J. daniel glad stephen , V. magesh .an alternative method for generating cad model of lumbar vertebrae through coordinate measuring machine
- J.daniel glad stephen1 , D.raja , A.vinoth finite element analysis of tibia bone by reverse engineering modeling approach