Reverse Engineering – from existing parts to CAD
We offer Reverse Engineering, enabling our client to obtain CAD drawings from existing parts.
What is Reverse Engineering?
Reverse Engineering is a term used to describe the process of reconstructing an existing product. It offers complete reverse engineering services that create a 3D virtual model of an existing physical use of the software. For the purpose of manufacturing, the object is measured using 3D scanning technologies. It helps modify and improve its design.
As computer-aided design (CAD) become popular, it’s been used for converting the point cloud to a triangular reverse engineering become a viable method to create a 3D virtual model of an existing physical part for use in 3D CAD, CAM, CAE or other software.
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The reverse-engineering process involves measuring an object and then reconstructing it as a 3D model. The physical object can be measured using 3D scanning technologies like CMMs, laser scanners, structured light digitizers, or industrial CT scanning (computed tomography).
The measured data alone, usually represented as a point cloud, lacks topological information and design intent. The former may be recovered by converting the point cloud to a triangular-faced mesh.
Reverse engineering aims to go beyond producing such a mesh and recover the design intent in terms of simple analytical surfaces where appropriate (planes, cylinders, etc.) and possibly NURBS surfaces to produce a boundary-representation CAD model. Recovery of such a model allows a design to be modified to meet new requirements, generate a manufacturing plan, etc.
Hybrid modelling is a commonly used term when NURBS and parametric modelling are implemented together. Using a combination of geometric and freeform surfaces can provide a powerful method of 3D modelling. Areas of freeform data can be combined with exact geometric surfaces to create a hybrid model. A typical example of this would be the reverse engineering of a cylinder head, which includes freeform cast features, such as water jackets and high-tolerance machined areas.
Reverse engineering is also used by businesses to bring existing physical geometry into digital product development environments, to make a digital 3D record of their own products, or to assess competitors’ products. It is used to analyze, for instance, how a product works, what it does, and what components it consists of, estimate costs, identify potential patent infringement, etc.
Value engineering is a related activity also used by businesses. It involves de-constructing and analyzing products, but the objective is to find opportunities for cost-cutting.
Often, companies have the requirements for CAD Drawings of an existing part.
This can be due to:
No Drawings exist only the tooling to make the part
The drawings are very old
The Supplier makes the part and has and will not provide the drawings
In these cases, it is possible to measure the existing part by:
3D Scanning
Hand measurements – recreating 3D CAD Models from existing parts
Following this, new 3D CAD models can be created and from this the subsequent 2D Drawings.
What Reverse Engineering Services does Jensen Consulting offer?
At Australian Design & Drafting, we are regularly receiving parts that do not have drawings. Depending on the accuracy required we either measure or scan the parts to create new drawings. After the new CAD model has been created, modifications can also be implemented. Our drawings will be in accordance with Australian Standard to enable our client to send the drawings to be understood fully by any Manufacturers.
2D Drafting Design Tools and Software
Our Expert Engineers & Drafters are versatile enough to use any software that your process might require. We have successfully managed Drafting and Design projects involving software such as AutoCAD, ArchiCAD,Solidworks, Revit Architecture, Architectural Desktop, Microstation, and 3D Studio Max.