Castings – Reverse Engineer

Project Scope

  1. Scan the 5 Castings shown.
  2. Produce Autodesk Inventor 3D CAD Models.
  3. Produce Autodesk Inventor 2D Drawings.

  1. Scanning the casting will give an accurate model of that specific casting, any imperfections, errors in the casting will be carried into the scan.
  2. Parts will need to be sprayed with a chalk like powder/developer spray in order dull the shiny surfaces.
  3. For this project we would use the Artec Spider Scanner.
  4. Due to the condition of the castings, with each STL we will provide an accuracy comparison plot.

Example of irregular and reflective surfaces and powder/developer spray


  1. Step 1 – STL File of Scanned Part
  2. Step 2 – Autodesk Inventor 3D CAD Part and Accuracy Report
  3. Step 3 – Autodesk Inventor 2D Drawing

Scanning with the Artec Space Spider & Eva into Artec Studio

  1. The output from Artec Studio will be a mesh STL that can then be used to reverse engineer the part
  2. Due to the nature of the parts, a number of scans will be taken and fused together in the scanning software.
  3. The STL is a triangulated mesh

Reverse Engineer in CAD – 3D Parametric Model

A reverse engineering software package can be used to either convert the mesh into a direct solid surface model (non editable) or, as is the case here, the scan data can be reverse engineered in CAD to produce a parametric model, this enables any errors, imperfections in the original part to be corrected.


Classic Car Parts

Original Part

Scanned Part & CAD Model

New Parts Machined from CAD Model

Original Part

Scan Data & CAD Models

3D Printed Validation Part from CAD Model

10 Stainless Steel Polished Sets Parts Produced

Truck Bed

Initial Scan Data followed by Automatic Alignment

truck bed inital scan and automatic alignment

Global Registration & Sharp Fusion followed by Simplification of Mesh

truck bed global registration sharp fusion and simplified mesh

Data exported from Artec Studio in STL format.