CAD import / export and reconstruction...
Reverse engineering software
The polygonal mesh modeling of 3DReshaper® generates models, made up with hundreds or thousands of non- continuous triangles.
However sometimes, a “continuous” model is required by CAD-CAM software. This process of making a CAD model is also called “reverse-engineering” because you generate a continuous model, also called “exact model” from scattered data sets: mesh and point cloud.
This module allows you to make CAD Surface reconstruction starting from a mesh. CAD Surface means NURBS and BSpline surfaces that are fitted on your original mesh. Finally, these surfaces could be exported into IGES or STEP file and/or used to make inspections.
To reconstruct in 3DReshaper a CAD model from a scan data, you will be able to:
CAD import (IGES-STEP)
The most common use of IGES and STEP import is to perform inspection; i.e. the comparison of reference geometry with an as built geometry (2 and only 2 entities: the reference geometry and the other object). Then, you MUST insure that your reference is a unique object, which is often not the case after the import command.
Some rules are very important to remember:
3DReshaper enables you to quickly import and prepare if necessary the CAD models.
With the NURBS reconstruction module, the import of CAD surfaces is very fast. The mathematical definition of the CAD model is preserved.
Note that if you do not have the "CAD modeler base" license, you will be still able to import CAD objects but the Iges and Step export will be not possible.
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