SmartFit 3D

SmartFit 3D is an interactive software environment where measured data is analyzed, optimized, and compared to CAD and theoretical data.

SmartFit 3D starts working where your measuring tools leave off. This powerful, intuitive software accepts measured data from virtually any contact or non-contact inspection device, including CMMs, laser scanners, laser trackers, and video systems.

Data are compared to the nominal representation of a part (CAD model, drawings, nominal points) to optimize their positions. Intelligent best-fitting mathematical methods provide thorough analysis, optimization, and evaluation of conformance to form and location for 2D/3D rigid bodies and assemblies.

Two Distinct Working Modes

Data imported into SmartFit 3D can be optimized in “Point to Point” or “Point to Surface” mode. In “Point to Point” mode, the nominal coordinates of each measured point are explicitly defined and remain unchanged during the entire optimization process. “Point to Surface” mode represents the nominal part with a CAD model, while the nominal points are represented by the projected coordinates, which usually vary at each optimization step

An Intelligent Optimization Process

“How can a good part be machined from the casting?”
“Will all the points satisfy the tolerance?”
“How much of a certain component should be shifted or rotated to achieve correct assembly?”

SmartFit 3D works with you to answer questions like these that impact your bottom line. Using advanced best-fit algorithms, your part is precisely evaluated against the nominal model to solve misalignment and location problems so that it can be repositioned for machining. The exacting SmartFit 3D process uses eight mathematical criteria to get the job done.

What Problems Can It Solve?

Use SmartFit 3D to make intelligent decisions:

Best-fit a part to its tolerance zones.
Assess profile tolerances on complex surfaces
Find the best coordinate systems for machining
Determine the best achievable tolerance
Find set-up problems and determine new, better datum targets
Troubleshoot the manufacturing process using intelligent “what if” analysis
Analyze assemblies and provide advice on correction

SmartFit Key Features

Eight mathematical criteria for best-fitting – Least squares, Minimum Sum of Deviations, Mini-Max, Uniform Deviations, Minimum Standard Deviation, Tolerance Envelope and Tolerance Envelope Mini-Max

Calculation with uncertainty information – best fitting can take measurements’ uncertainties into account if provided. Optimization algorithms will achieve the best solution, with all uncertainty zones put into tolerance

Tools for forcing a solution by weighting, excluding or releasing points
Calculation of basic geometric elements certified by PTB
Cross-sectioning capability – allows creation of cross sections from high complexity freeform models, with analysis of errors in 2D
Cross section can be included in reports or exported for further analysis
Multiple error display modes, including color mapping, statistics, graphics snapshots and detailed point/error information
“Point to Point” and “Point to Surface” working modes
Built-in filters automatically invoked during measured data import
Annotations and basic dimensioning capability
Discrete reverse engineering, 2.5D and 3D mesh construction from point clouds

Import/Export Options

Import measured points with or without probe tip radius
Import CAD file – compatible with IGES, VDA, STL, DXF, STEP and SFM formats
Import native CAD models (CATIA, Parasolid, Solidworks, ProE, ACIS, Ideas) via optional CAD converter
Import measured point data with point filtering options, including Smart, Gaussian, Median,
Morphology and Curvature-based point reduction
Export to SmartFit/SmartProfile Model (SFM) format
Export to STL format
Export whiskers to an IGES file
Export screen captures
Export results to an Excel file
Export mesh points of a model
Export Cero section as a 2D SmartFit project

Capabilities

Assess profile tolerances of complex surfaces, determining the best achievable tolerance
Simulate corrections for assemblies
Achieve maximum material conditions for machining
System identification of new, better datum targets (locators)
Determine best coordinate system for machining
“What if” analysis during optimization
Create simple models – without a CAD system
Compare two or more model surfaces
Construct mesh surfaces
Evaluate measured data against a nominal model
Evaluate more than one imported point cloud against a nominal model
Evaluate measured data against more than one imported or constructed model
Associate measured points with specific geometric features
Automatically process data with AutoRun