Practical Exercises

In this page, you can download different exercises which will help you to practice 3DR Meteor in various applications, using generic features.

Required Sample Files for Practicals

All exercises are available through the new help center (F1 from 3DR Meteor), section "Practical Exercises". Necessary .3DR files are available in the Samples folder of the software.

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  • Reverse Engineering of a Pelton Wheel - Part One: Alignment

Align the part thanks to the extraction of geometric features on a mesh created from the point cloud.

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  • Reverse Engineering of a Pelton Wheel - Part Two: Mesh Improvement

Clean the mesh so that it can be replicated by symmetry and rotation.

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  • Reverse Engineering of a Pelton Wheel - Part Three: Automatic surface creation

Create an automatic network of polylines and edit this network in the required areas to create the surface.

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  • Reverse Engineering of a Bowling Pin

Reverse engineering process allows to create a 3D model from a real object in order to duplicate or to modify it. It can also be used if the current drawings of the physical object are missing or incomplete. In this case, measurement of free-form surfaces can only be achieved through scanning and point cloud processing as explained in this exercise in which we will see how to convert a point cloud into a CAD model. The .3DR file is available in the sample files folder.

Rétro-Ingénierie

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  • Reverse Engineering of a Car Body

The polygonal mesh modeling generates quality models, made up with up to hundreds or thousands of triangles. These 3D mesh models are ready for rapid prototyping, tool path generation, simulation, analysis… In order to use measured/scanned data (point clouds) in modern computer-aided design (CAD), manufacturing (CAM) or engineering (CAE) software, you may need to generate a CAD-model, such as IGES or STEP, which can be manipulated with those. This process is called reverse engineering. The software is a complete solution for the modeling of typical CAD objects, by providing you all the necessary functions for the construction and the processing of BSpline and Nurbs surfaces. The .3DR file is available in the sample files folder.

reverse engineering

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  • Reverse Engineering of a Phone Cover

Reverse engineering is the creation of CAD surfaces from scan data. In most cases, a scanner provides the point clouds used to create a 3D mesh. Then, CAD surfaces can be computed from the 3D mesh and a polyline network. CAD surfaces can be exported in IGES or STEP format and further used in other software for Computer Aided Manufacturing (CAM), Finite Element Analysis (FEA) or for comparison and inspection. The .3DR file is available in the sample files folder.

reverse engineering

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